NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
634 reports100,000 miles · Oct 30, 2019
Electrical System
THE CAR HAS INTERMITTENT VARIOUS ELECTRICAL PROBLEMS. IT WILL RUN FINE AND THEN THE NEXT TIME THE KEY FOB WONT OPEN THE DOOR, NO INTERIOR LIGHTS, IT WONT START...ABSOLUTELY NO POWER TO ANYTHING IN THE CAR. IT IS AS IF THE ENTIRE BATTERY WAS REMOVED. THEN LATER, IT WILL START RIGHT UP. TRYING TO JUMP START IT DOES NOTHING.THIS H…
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THE CAR HAS INTERMITTENT VARIOUS ELECTRICAL PROBLEMS. IT WILL RUN FINE AND THEN THE NEXT TIME THE KEY FOB WONT OPEN THE DOOR, NO INTERIOR LIGHTS, IT WONT START...ABSOLUTELY NO POWER TO ANYTHING IN THE CAR. IT IS AS IF THE ENTIRE BATTERY WAS REMOVED. THEN LATER, IT WILL START RIGHT UP. TRYING TO JUMP START IT DOES NOTHING.THIS HAS LEFT ME COMPLETELY STRANDED SEVERAL TIMES. I HAVE HAD THE CAR TOWED 3 TIMES. BUT EACH TIME WHEN I GET IT TO THE MECHANIC, IT STARTS RIGHT UP. OTHER TIMES, THE CAR RUNS FINE BUT THE DOOR LOCKS WILL UNLOCK AND LOCK ON THEIR OWN RAPIDLY OVER AND OVER. THIS USUALLY HAPPENS WHILE SITTING WITH THE CAR ON AND IN PARK. OTHER TIMES WHEN TRYING TO PULL INTO TRAFFIC, THE ENGINE SPUTTERS, THE RADIO DISPLAY FLASHES ON AND OFF, AND THE AC BLOWER CUTS OUT ALL AT THE SAME TIME. THIS IS DANGEROUS BECAUSE THE SPUTTERING STALLS THE ACCELERATION WHILE PULLING INTO TRAFFIC. OTHER TIMES JUST THE RADIO AND THE DISPLAY WILL GO OFF - SOMETIMES FOR DAYS & SOMETIMES JUST A FEW MINUTES, BUT EVERYTHING ELSE WORKS FINE. OTHER TIMES THE SPEEDOMETER WILL COMPLETELY STOP WORKING AND THE GAS GAGE REGISTERS NOTHING. THIS HAS HAPPENED ON THE INTERSTATE ON LONG DRIVES SO THAT I CAN'T TELL HOW FAST I AM GOING OR WHETHER I HAVE ENOUGH GAS. IT WILL THEN START BACK UP, BUT MAY BE DAYS LATER. I TOOK IT IN TO BE FIXED. THEY TOOK THE COMPUTER OUT FROM UNDER THE REAR WHEEL WELL AND SHOWED ME THAT IT WAS COMPLETELY CORRODED. I DROVE THE CAR WITHOUT A COMPUTER FOR 8 MONTHS BUT BECAUSE OF THE SAME PROBLEMS CONTINUING, I TOOK IT BACK IN AND THEY SAID I NEEDED A NEW COMPUTER. THE CAR HAD TOO MANY MILES FOR THIS TO BE COVERED SO I PAID OVER $1500 FOR THIS TO BE FIXED. NOW IT IS 3 WEEKS AFTER GETTING THE NEW COMPUTER INSTALLED. ALL OF THE PROBLEMS HAVE CONTINUED. AND AGAIN TODAY, I WAS STRANDED WHEN I WENT OUT AFTER WORK AND FOUND IT DEAD AGAIN. IT IS BACK IN THE DEALER AGAIN.
NHTSA ODI #11277011
20,000 miles · Oct 27, 2019
Exterior Lighting
THE HEADLIGHTS ARE SO DIM THAT I CAN DRIVE WITH THE HIGH BEAMS ON AND ON COMING VEHICLES EVER FLASH THEIR HEADLIGHTS HIGH BEAM ARE AS BRIGHT AS THE LOW BEAMS SHOULD BE. THIS IS EXTREMELY DANGEROUS WITH THIS POOR LIGHTING. THERE NEEDS TO BE A RECALL, CHECKING THE INTERNET THERE HAVE BEEN OTHER COMPLAINTS FILE WITH NHTSA
NHTSA ODI #11271286
89,926 miles · Oct 25, 2019
Electrical System
TL* THE CONTACT OWNS A 2014 CHEVROLET IMPALA. WHEN THE VEHICLE WAS STARTED, ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC AND WAS INFORMED THAT THE PASSENGER SIDE HUB SENSOR NEEDED TO BE REPLACED. THE CONTACT WAS GIVEN AN ESTIMATE FOR THE REPAIRS. THE MANU…
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TL* THE CONTACT OWNS A 2014 CHEVROLET IMPALA. WHEN THE VEHICLE WAS STARTED, ALL THE WARNING INDICATORS ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC AND WAS INFORMED THAT THE PASSENGER SIDE HUB SENSOR NEEDED TO BE REPLACED. THE CONTACT WAS GIVEN AN ESTIMATE FOR THE REPAIRS. THE MANUFACTURER WAS NOTIFIED AND DID NOT ASSIST BECAUSE THE VEHICLE WAS OUT OF WARRANTY. THE DEALER WAS NOT CONTACTED. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 89,926.
NHTSA ODI #11271112
67,000 miles · Oct 24, 2019
Unknown Or Other
WE BOUGHT OUR 2014 CHEVY IMPALA LTZ MARCH 2018. THE BACK TRUNK AREA WHERE SPARE TIRE IS HAS FILLED WITH WATER MULTIPLE TIMES LEADING TO MOLD WE HAVE BREATHED IN. WE HAVE TO KEEP CLEANING AND EMPTYING WATER OUT TO TRY AND KILL THE MOLD. THIS IS AWFUL. WE ARE NOT THE ONLY ONES MANY COMPLAINTS WITH BAD TAIL LIGHT GASKETS. THIS …
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WE BOUGHT OUR 2014 CHEVY IMPALA LTZ MARCH 2018. THE BACK TRUNK AREA WHERE SPARE TIRE IS HAS FILLED WITH WATER MULTIPLE TIMES LEADING TO MOLD WE HAVE BREATHED IN. WE HAVE TO KEEP CLEANING AND EMPTYING WATER OUT TO TRY AND KILL THE MOLD. THIS IS AWFUL. WE ARE NOT THE ONLY ONES MANY COMPLAINTS WITH BAD TAIL LIGHT GASKETS. THIS SHOULD BE A RECALL!!! GM SHOULD HAVE TO REPLACE AT NO COST TO THE CONSUMER. MOLD IS DANGEROUS AND CAN BE DEADLY.
NHTSA ODI #11270881
59,000 miles · Oct 11, 2019
Steering
WHILE DRIVING DOWN THE ROAD I NOTICED THAT THE POWER STEERING DRIVE WITH CAUTION, STABILTRACK, AND ABS WARNINGS WAS ON THE DASHBOARD. IT BECAME A LITTLE MORE DIFFICULT TO STEER. WHEN I GOT HOME I TURN IT OFF AND LET IT SET FOR A FEW MINUTES AND TURN IT BACK ON, STILL DISPLAYED WARNING. I CALLED KOOL CHEVROLET AND THEY TOLD ME …
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WHILE DRIVING DOWN THE ROAD I NOTICED THAT THE POWER STEERING DRIVE WITH CAUTION, STABILTRACK, AND ABS WARNINGS WAS ON THE DASHBOARD. IT BECAME A LITTLE MORE DIFFICULT TO STEER. WHEN I GOT HOME I TURN IT OFF AND LET IT SET FOR A FEW MINUTES AND TURN IT BACK ON, STILL DISPLAYED WARNING. I CALLED KOOL CHEVROLET AND THEY TOLD ME TO BRING IT IN THE NEXT MORNING. THEY DETERMINED THE REAR HUB WAS CRACKED. AFTER THE $495.14, IT SEEMS TO WORK LIKE USUAL. MY CAR HAS LESS THAN 60,000 MILES ON IT. I HAVE SEEN THAT THIS WAS AN ISSUE WITH OTHER 2014 IMPALA'S, IT SHOULD BE A RECALL.
NHTSA ODI #11267950
26,000 miles · Oct 4, 2019
Electrical System
I RECEIVED A RECALL LETTER FOR THE SIDE BLIND ZONE ALERT MESSAGE ON MY IMPALA AND I DID NOT UNDERSTAND THE WORDING IN THE LETTER "OF IT BEING COVERED WITHIN 6 YEARS OF THE DATE YOUR VEHICLE WAS ORIGINALLY PLACED IN SERVICE." I THOUGHT IT MEANT IT COULDN'T BE OLDER THAN 6 YEARS OLD BUT WASN'T SURE WHAT PLACED IN SERVICE MEANT AN…
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I RECEIVED A RECALL LETTER FOR THE SIDE BLIND ZONE ALERT MESSAGE ON MY IMPALA AND I DID NOT UNDERSTAND THE WORDING IN THE LETTER "OF IT BEING COVERED WITHIN 6 YEARS OF THE DATE YOUR VEHICLE WAS ORIGINALLY PLACED IN SERVICE." I THOUGHT IT MEANT IT COULDN'T BE OLDER THAN 6 YEARS OLD BUT WASN'T SURE WHAT PLACED IN SERVICE MEANT AND ALSO NOT HAVE OVER 80,000 MILES ON IT. MY VEHICLE HAS ALMOST 26,000 AND MY DATE WAS SEPTEMBER 13 PER THE LOCAL DEALERSHIP, SO WHEN I CALLED TO MAKE AN APPOINTMENT THEY TOLD ME IT WAS NOT COVERED ANYMORE. I HAD AN APPOINTMENT IN AUGUST BUT HAD TO CANCEL IT AS MY MOM WAS JUST PUT INTO HOSPICE AT THAT POINT. YOU WOULD THINK THEY WOULD PUT IN THE LETTER MY DATE OF ORIGINALLY PLACED IN SERVICE BUT IT WOULD MAKE IT A LOT EASIER TO UNDERSTAND. I AM HOPING THAT I CAN STILL HAVE IT FIXED AND NOT HAVE TO PAY FOR SOMETHING THAT GM MADE INCORRECTLY. MY SIDE BLIND ALERT COMES ON EVERY TIME I TURN MY CAR ON AND DOESN'T WORK IN THE RAIN WHEN I AM DRIVING. I THOUGHT THIS FEATURE WAS TO HELP PEOPLE BE MORE SAFE ON THE ROAD AND LESSEN CRASHES BUT IT SEEMS TO BE ABOUT MONEY FOR GM OR ELSE THEY WOULD FIX IT. I PAID A LOT OF MONEY FOR MY IMPALA AND ITS SPECIAL FEATURES AND THOUGH I KNOW THINGS WILL NEED TO BE FIXED, I SHOULDN'T HAVE TO PAY FOR GM'S MISTAKE WHEN MANUFACTURING THE VEHICLE. THANK YOU.
NHTSA ODI #11266157
72,000 miles · Oct 3, 2019
Engine
I WAS DRIVING IN HIGHWAY TRAFFIC WHEN THE CAR'S ENGINE POWER SHUT OFF, COULDN'T RESTART FOR SEVERAL ATTEMPTS. CALLED 911 AS A DISABLED VEHICLE IN CENTER OF HIGHWAY. STABILITYTRAK AND REDUCED ENGINE POWER WARNING CAME ON AS WELL AS CHECK ENGINE LIGHT. BROUGHT TO DEALER, WAS TOLD MANIFOLD BOLTS WERE LOOSE AND BATTERY NEEDED REPLAC…
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I WAS DRIVING IN HIGHWAY TRAFFIC WHEN THE CAR'S ENGINE POWER SHUT OFF, COULDN'T RESTART FOR SEVERAL ATTEMPTS. CALLED 911 AS A DISABLED VEHICLE IN CENTER OF HIGHWAY. STABILITYTRAK AND REDUCED ENGINE POWER WARNING CAME ON AS WELL AS CHECK ENGINE LIGHT. BROUGHT TO DEALER, WAS TOLD MANIFOLD BOLTS WERE LOOSE AND BATTERY NEEDED REPLACEMENT. PAID DEALER $663. THE VERY NEXT MORNING SAME THING HAPPENED AGAIN 3 TIMES BEFORE I GOT TO THE DEALER. AFTER RESEARCHING I SEE THIS IS A COMMON PROBLEM THAT GM IS NOT ADDRESSING. THIS IS A DANGEROUS SITUATION WHEN ENGINE SHUTS DOWN ON THE MIDDLE OF 4 LANE HIGHWAY! IS SOMEONE GOING TO HAVE TO BE KILLED BEFORE GM RECALLS THROTTLE BODY/ ACCELERATOR PROBLEM?
NHTSA ODI #11266004
37,000 miles · Sep 30, 2019
Electrical SystemLane Departure
TL* THE CONTACT OWNS A 2014 CHEVROLET IMPALA. THE CONTACT STATED THAT THE SIDE DETECTION MODULE ON THE DRIVER'S SIDE NO LONGER FUNCTIONED. AN UNKNOWN WARNING INDICATOR ALERTED THE CONTACT THAT THE SIDE DETECTION INDICATOR WAS NOT FUNCTIONING. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHERE IT WAS DETERMINED THAT TH…
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TL* THE CONTACT OWNS A 2014 CHEVROLET IMPALA. THE CONTACT STATED THAT THE SIDE DETECTION MODULE ON THE DRIVER'S SIDE NO LONGER FUNCTIONED. AN UNKNOWN WARNING INDICATOR ALERTED THE CONTACT THAT THE SIDE DETECTION INDICATOR WAS NOT FUNCTIONING. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHERE IT WAS DETERMINED THAT THE DRIVER'S SIDE MODULE WAS DEFECTIVE. THE MANUFACTURER AND DEALER WERE NOT NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 37,000.
NHTSA ODI #11265232
154,000 miles · Sep 27, 2019
Electronic Stability Control (esc)
THEY RECENTLY HAD A RECALL FOR THE 2014 CHEVY IMPALA FOR THE BRAKES NOT DISENGAING THE ROTORS CAUSING NOT VERY GOOD DRIVABLE CONDTIONS, BUT WHEN I CALLED AND HAVE THEM MY GIN NUMBER IT SAYS MINE DOES NOT HAVE A RECALL BUT MY CAR IS DOING THE VERY EXACT THING. AND IT DOES THIS WHILE DRIVING AND LIKE IT STATED CAN CAUSE YOUR WHEEL…
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THEY RECENTLY HAD A RECALL FOR THE 2014 CHEVY IMPALA FOR THE BRAKES NOT DISENGAING THE ROTORS CAUSING NOT VERY GOOD DRIVABLE CONDTIONS, BUT WHEN I CALLED AND HAVE THEM MY GIN NUMBER IT SAYS MINE DOES NOT HAVE A RECALL BUT MY CAR IS DOING THE VERY EXACT THING. AND IT DOES THIS WHILE DRIVING AND LIKE IT STATED CAN CAUSE YOUR WHEEL TO BURN AND THAT'S WHAT HAPPEN TO MY CAR.
NHTSA ODI #11258490
53,357 miles · Sep 25, 2019
Seat Belts
THE OUTBOARD DRIVERS SEAT BELT TENSION CABLE FAILED AT THE POINT WHERE THE CABLE WAS CRIMPED (PHOTOS ATTACHED) WHICH APPEARS TO BE THE SAME FAILURE WHY OUR CHEVY TRAVERSE IS CURRENTLY BEING RECALLED, RECALL WAS ISSUED FIVE YEARS AGO AND COVERED 1.4 MILLION CHEVROLET TRAVERSE, BUICK ENCLAVE, GMC ACADIA AND SATURN OUTLOOK VEHICLES…
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THE OUTBOARD DRIVERS SEAT BELT TENSION CABLE FAILED AT THE POINT WHERE THE CABLE WAS CRIMPED (PHOTOS ATTACHED) WHICH APPEARS TO BE THE SAME FAILURE WHY OUR CHEVY TRAVERSE IS CURRENTLY BEING RECALLED, RECALL WAS ISSUED FIVE YEARS AGO AND COVERED 1.4 MILLION CHEVROLET TRAVERSE, BUICK ENCLAVE, GMC ACADIA AND SATURN OUTLOOK VEHICLES BUILT BETWEEN 2009 AND 2014. IN THIS CASE, THE SEATBELT SNAPPED WHILE THE BELT WAS BEING BUCKLED. THE CAR HAD NOT BEEN IN ANY ACCIDENT.
NHTSA ODI #11258243
Official recalls
12Jul 24, 2015
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Impala vehicles manufactured April 15, 2013, to June 19, 2015, equipped with front vented-heated passenger seats. Accordingly, the Automatic Occupant Sensing (AOS) system may fail to suppress the front passenger air bag if a child seat is in the front passenger seat. These vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 208, "Occupant Crash Protection."
Consequence & remedy
Consequence: If the front passenger air bag deploys with a child seat in the front passenger seat, it increases the risk of injury to the child.
Remedy: GM will notify owners, and dealers will correct the calibration-learning error by preconditioning the empty seat, and also resetting the ECU to a seat zero-value, free of charge. The recall began on August 25, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 15400.
Apr 6, 2015
General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Impala vehicles manufactured March 22, 2013, to May 22, 2014. In the affected vehicles, the electronic parking brake piston actuation arm may not fully retract causing the brake pads to stay partially engaged. Thus, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Systems (FMVSS) No. 135 "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: Brake pads that remain partially engaged with the rotors may cause excessive brake heat that may result in a fire.
Remedy: GM has notified owners, and dealers will reprogram the electronic parking brake control module with new software, free of charge. The recall began on May 6, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 15259. Note: The vehicles covered by this campaign were previously remedied incorrectly under campaigns 14V541 or 15V085.
Feb 11, 2015
General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Impala vehicles manufactured November 15, 2012, to May 30, 2014. In the affected vehicles, the electronic parking brake piston actuation arm may not fully retract causing the brake pads to stay partially engaged. Thus, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Systems (FMVSS) No. 135 "Light Vehicle Brake Systems."
Consequence & remedy
Consequence: Brake pads that remain partially engaged with the rotors may cause excessive brake heat that may result in a fire.
Remedy: GM will notify owners, and dealers will reprogram the electronic parking brake control module with new software, free of charge. The recall began March 5, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020 (Chevrolet). GM's number for this recall is 15100. Note: This recall covers a limited population of vehicles that were remedied incorrectly under recall 14V-541.
Oct 1, 2014
General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac CTS, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, GMC Yukon, and Yukon XL, and 2014 Buick Enclave, Chevrolet Express, Impala, Silverado HD, Traverse, GMC Acadia, Savana, and Sierra HD vehicles. In the affected vehicles, the chassis electronic module may be internally contaminated, resulting in an electrical short.
Consequence & remedy
Consequence: If the module experiences an electrical short, the vehicle could stall, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the chassis electronic module, free of charge. The recall began on December 26, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GMs number for this recall is 14515.
Sep 9, 2014
General Motors LLC (GM) is recalling certain model year 2013-2015 Cadillac XTS vehicles manufactured February 14, 2012, to August 22, 2014, and 2014-2015 Chevrolet Impala vehicles manufactured November 5, 2012, to September 2, 2014. In the affected vehicles, the electronic parking brake piston actuation arm may not fully retract causing the brake pads to stay partially engaged.
Consequence & remedy
Consequence: Brake pads that remain partially engaged with the rotors may cause excessive brake heat that may result in a fire.
Remedy: GM will notify owners, and dealers will update the electronic parking brake software, free of charge. The recall began on October 28, 2014. Owners may contact Chevrolet customer service at 1-800-222-1020, or Cadillac customer service at 1-800-458-8006. GM's number for this recall is 14471.
Aug 28, 2014
General Motors LLC (GM) is recalling certain model year 2013-2014 Cadillac XTS vehicles manufactured April 11, 2013, to June 27, 2013, and 2014 Chevrolet Impala vehicles manufactured May 13, 2013, to November 5, 2013. The affected vehicles may have left the factory with the sensing and diagnostic module (SDM) set to "manufacturing mode."
Consequence & remedy
Consequence: In manufacturing mode, the vehicle's air bags will not deploy in the event of a crash, increasing the risk of occupant injury.
Remedy: GM will notify owners, and dealers are to reprogram the SDM to the correct mode, free of charge. The recall is expected to begin in September 2014. Owners may contact Cadillac customer service at 1-800-458-8006 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14532.
Aug 8, 2014
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Impala vehicles manufactured May 7, 2014, to July 28, 2014. In the event of an accident, the center storage console may not stay latched. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 201, "Occupant Protection In Interior Impact."
Consequence & remedy
Consequence: The storage compartment door may not remain closed in the event of a crash, increasing the risk of occupant injury.
Remedy: Parts to remedy this condition are not currently available. GM will send owners an interim notification in early October 2014, and will send a second letter when parts are available. At that time dealers will inspect, and if necessary, replace the console storage compartment door inertia latch, free of charge. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14476.
Jul 23, 2014
General Motors LLC (GM) is recalling certain model year 2014 Chevrolet Impala vehicles manufactured November 5, 2012, to December 20, 2013. Due to a poor electrical ground connection to the Power Steering Control Module (PSCM), the affected vehicles may have a loss of power steering assist during start up or while driving.
Consequence & remedy
Consequence: If power steering assist is lost, greater driver effort would be required to steer the vehicle at low speeds, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will clean paint from behind the ground stud nut and update the PSCM software, free of charge. Owners may contact Chevrolet customer service at 1-800-222-1020. The recall began on August 21, 2014. GM's number for this recall is 14330.
Jul 2, 2014
General Motors LLC (GM) is recalling certain model year 2014 Buick Regal, Cadillac XTS, Chevrolet Camaro and Chevrolet Impala vehicles. Improperly torqued fasteners may cause the steering intermediate shaft and the steering gear and/or the lower control arm and the lower ball joint to separate.
Consequence & remedy
Consequence: If any of the components separate, the vehicle may have a loss of steering, increasing the risk of a crash.
Remedy: GM began to notify owners on June 27, 2014, and dealers will inspect the fasteners for correct torque, correcting them as necessary, free of charge. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac) or 1-800-222-1020 (Chevrolet). GM's number for this recall is 14378.
Jun 23, 2014
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) is recalling certain model year 2005-2009 Buick LaCrosse, 2006-2011 Buick Lucerne, 2000-2005 Cadillac DeVille, 2006-2011 Cadillac DTS, 2006-2014 Chevrolet Impala, and 2006-2007 Chevrolet Monte Carlo vehicles. In the affected vehicles, the weight on the key ring and road conditions or some other jarring event may cause the ignition switch to move out of the run position, turning off the engine.
Consequence & remedy
Consequence: If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury. Additionally, a key knocked out of the run position will cause loss of engine power, power steering, and power braking, increasing the risk of a vehicle crash.
Remedy: GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 23, 2014. Owners may contact General Motors customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), and 1-800-222-1020 (Chevrolet). GM's number for this recall is 14299.
Feb 21, 2014
General Motors LLC (GM) is recalling certain model year 2014 Buick Regal, LaCrosse, Verano, and Enclave, and Chevrolet Impala, Malibu, Cruze, and Traverse, and GMC Acadia vehicles equipped with automatic transmissions. In the affected vehicles, the transmission shift cable adjuster may disengage from the transmission shift lever. As such, these vehicles do not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 102, "Transmission Shift Lever Sequence, Starter Interlock, and Transmission Braking Effect." They also fail to conform to FMVSS number 114, "Theft Protection and Rollaway Prevention."
Consequence & remedy
Consequence: If a vehicle's shift cable disengages from the transmission shift lever, a driver may be unable to shift gear positions and the indicated shift position may not represent the gear position the vehicle is in. Should a disengagement occur while the vehicle is being driven, when the driver goes to stop and park the vehicle, the driver may be able to shift the lever to the "PARK" position, but the vehicle transmission may not be in the "PARK" gear position. If the vehicle is not in the "PARK" position there is a risk the vehicle will roll away as the driver and other occupants exit the vehicle or anytime thereafter. A vehicle rollaway increases the risk of injury to exiting occupants and bystanders.
Remedy: General Motors will notify owners, and dealers will inspect and replace any affected transmission shift cable adjusters, free of charge. The recall began on April 10, 2014. Chevrolet owners may contact General Motors at 1-800-222-1020, Buick owners at 1-800-521-7300, and GMC owners at 1-800-462-8782. General Motors' number associated with this recall is 14048.
May 24, 2013
General Motors LLC (GM) is recalling certain model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; model year 2014 Chevrolet Impala; and 2013 Chevrolet Sonic vehicles. Originally, in May 2013, GM recalled 1,627 model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; and model year 2014 Chevrolet Impala vehicles. In October 2013, GM informed the agency that it was adding model year 2013 Chevrolet Sonic vehicles to this campaign , representing an additional 8,050 units. The total number of vehicles being recalled is now 9,677. On the affected vehicles, the brake lamps may intermittently flash without the brakes being applied and the cruise control may disengage. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, reflective devices, and associated equipment."
Consequence & remedy
Consequence: If the brake lamps flash when the vehicle is not slowing, a following driver may not adjust vehicle speed when the vehicle is in fact braking, and the brake lamps are illuminating as intended, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the body control module. The recall began on June 13, 2013. Owner's may contact Chevrolet at 1-800-630-2438 or Cadillac at 1-866-982-2339. GM's recall number is 13158.
Additional source detail variants (2)
Exterior Lighting:brake Lights
General Motors LLC (GM) is recalling certain model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; model year 2014 Chevrolet Impala; and 2013 Chevrolet Sonic vehicles. Originally, in May 2013, GM recalled 1,627 model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; and model year 2014 Chevrolet Impala vehicles. In October 2013, GM informed the agency that it was adding model year 2013 Chevrolet Sonic vehicles to this campaign , representing an additional 8,050 units. The total number of vehicles being recalled is now 9,677. On the affected vehicles, the brake lamps may intermittently flash without the brakes being applied and the cruise control may disengage. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, reflective devices, and associated equipment."
Consequence: If the brake lamps flash when the vehicle is not slowing, a following driver may not adjust vehicle speed when the vehicle is in fact braking, and the brake lamps are illuminating as intended, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the body control module. The recall began on June 13, 2013. Owner's may contact Chevrolet at 1-800-630-2438 or Cadillac at 1-866-982-2339. GM's recall number is 13158.
Electrical System
General Motors LLC (GM) is recalling certain model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; model year 2014 Chevrolet Impala; and 2013 Chevrolet Sonic vehicles. Originally, in May 2013, GM recalled 1,627 model year 2013 Cadillac ATS and model year 2013 Cadillac XTS; and model year 2014 Chevrolet Impala vehicles. In October 2013, GM informed the agency that it was adding model year 2013 Chevrolet Sonic vehicles to this campaign , representing an additional 8,050 units. The total number of vehicles being recalled is now 9,677. On the affected vehicles, the brake lamps may intermittently flash without the brakes being applied and the cruise control may disengage. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 108, "Lamps, reflective devices, and associated equipment."
Consequence: If the brake lamps flash when the vehicle is not slowing, a following driver may not adjust vehicle speed when the vehicle is in fact braking, and the brake lamps are illuminating as intended, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will reprogram the body control module. The recall began on June 13, 2013. Owner's may contact Chevrolet at 1-800-630-2438 or Cadillac at 1-866-982-2339. GM's recall number is 13158.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
2AQ17002 · Bical Chevrolet/loss Of Power Steering
Opened Mar 16, 2017 · Closed May 14, 2020
Status: closed (inferred from source dates) · Steering:electric Power Assist System
NHTSA opened AQ17-002 to determine whether BiCal Chevrolet of Valley Stream, New York (BiCal) has complied with the requirements of the National Traffic and Motor Vehicle Safety Act, 49 U.S.C. Chapter 301 (Safety Act) and its implementing regulations. The Safety Act requires, among other things, that a manufacturer notify its dealers of defects related to motor vehicle safety and non-compliances with Federal Motor Vehicle Safety Standards and, in turn, that a dealer not sell a new vehicle subject to a recall unless the recall remedy has been performed (49 U.S.C. ?30120(i)).NHTSA issued an information request (IR) letter to BiCal on March 15, 2017. BiCal responded to this request on November 8, 2017. On March 16, 2017, an IR letter was issued to General Motors LLC (GM) and a response was received from GM on April 28, 2017. In NHTSA?s view, it had difficulties in obtaining responses to IR letters from BiCal throughout the AQ investigation, including not receiving a response to the first IR until more than three months after the original deadline. Additionally, in NHTSA's view, BiCal failed to provide a full response to the second IR. BiCal does not contest NHTSA's conclusion that it violated the Safety Act by initially failing to provide full and complete responses to the IRs from NHTSA by their deadlines. NHTSA's investigation also indicated that BiCal sold and delivered at least 54 recalled vehicles that did not have the recall remedy completed at the time the vehicles were delivered to the customers.BiCal did not contest NHTSA?s conclusion that it violated the Safety Act by selling and delivering certain new motor vehicles that were subject to a recall before the vehicles were remedied.Under a Settlement Agreement dated March 11, 2019, BiCal agreed to pay compromised civil penalties in the amount of $40,000. This Audit Query is closed.
PE14010 · Active Safety System Malfunction
Opened Apr 15, 2014 · Closed Nov 21, 2014
Status: closed (inferred from source dates) · Forward Collision Avoidance; Forward Collision Avoidance: Adaptive Cruise Control; Forward Collision Avoidance: Crash Imminent Braking; Parking Brake; Parking Brake:indicator Light
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
Additional source detail variants (5)
Forward Collision Avoidance: Adaptive Cruise Control
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
Forward Collision Avoidance: Crash Imminent Braking
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
Forward Collision Avoidance
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
Parking Brake
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
Parking Brake:indicator Light
On April 15, 2014, the Office of Defects Investigations (ODI) opened Preliminary Evaluation PE14-010 based on two complaints alleging incidents of sudden/severe uncommanded braking resulting in rear impact collisions in model year (MY) 2014 Chevrolet Impala vehicles.ODI analyzed all complaints related to allegations of unwanted brake activations while driving that were provided by GM or submitted to ODI from consumers and has not identified any additional incidents involving sudden, extended (greater than 1 second) autonomous braking.The two crash complaints that were the basis of PE14-010 involved rental vehicles equipped with an Electric Park Brake (EPB) system.Neither vehicle was equipped with Full Speed Range Adaptive Cruise Control (FSRACC) or Forward Collision Alert (FCA) systems. According to GM, brake lights will be illuminated if the service brakes are applied or the EPB system is activated while the vehicle is moving (dynamic EPB brake apply).In a dynamic EPB brake apply, the Electric Brake Control Module (EBCM) initiates a controlled deceleration while activating a chime and a telltale light.If the service brake is applied at any time during dynamic EPB brake apply, the system provides a substantially greater deceleration.Witness statements and analysis of crash data from the two incidents are consistent with inadvertent dynamic EPB brake applications.Both reports alleged beeping noise immediately before the accidents and one pre-crash data report shows a moderate initial vehicle deceleration followed by in increase in deceleration to approximately 0.6g just prior to the vehicle stopping and being struck from the rear.During this investigation, General Motors LLC (GM) inspected the two crash incident vehicles and examined each of the EPB switches to assess potential mechanical and electrical fault conditions.The testing and part examination did not find any evidence of mechanical or electrical failure of the EPB switches and GM did not identify any faults in the subject components or systems that could have caused or contributed to autonomous brake applications in the incident vehicles.According to GM, the evidence indicates the events were caused by inadvertent driver actuation of the EPB switch. Additionally, during this investigation, GM identified a defect condition in the EPB software in approximately 132,921 model year (MY) 2014 through 2015 Chevrolet Impala and MY 2013 through 2015 Cadillac XTS vehicles (Recall No. 14V-541) that could result in failure of the EPB to release after vehicle start-up.In this condition, the electronic parking brake piston actuation arm may not fully retract when the driver disengages the EPB, which may cause the brake pads to stay partially engaged with the rotor.According to GM, the parking brake indicator may not illuminate when the EPB is engaged and the driver may experience poor vehicle acceleration, undesired deceleration during idle coast-down, excessive brake heat, and premature wear to some brake components. If the vehicle is operated for an extended period of time in this condition, there is a potential for the rear brakes to generate significant heat, smoke, and sparks.GM and its supplier, Mando Pyeongtaek, upgraded the EPB software to address brake drag conditions and issued a recall bulletin on September 4, 2014 instructing dealers to reprogram the electronic parking brake control module on all affected vehicles. This preliminary evaluation is closed.The closing of this investigation does not constitute a finding that a safety-related defect does not exist.For additional information regarding this investigation, see Attachment A to this c
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