NHTSA owner reports · September 18, 2026 snapshot.
Electrical System complaints
36 reportsClear category filterMileage unknown · Aug 16, 2019
Electrical SystemPower TrainSteering
AT LESS THAN 90K MILES MY POWER STEERING ABRUPTLY WITHOUT WARNING STOPPED WORKING WHILE I WAS DRIVING THE CAR. MY AUTOMATIC TRANSMISSION WILL ABRUPTLY WITHOUT WARNING STAY STUCK IN A LOW GEAR WHILE I AM DRIVING. I TURN OFF THE CAR AND START IT AGAIN AND IT'S FINE. MY COMPUTER SCREEN WILL GO BLACK AND STAY THAT WAY, WHICH CONTR…
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AT LESS THAN 90K MILES MY POWER STEERING ABRUPTLY WITHOUT WARNING STOPPED WORKING WHILE I WAS DRIVING THE CAR. MY AUTOMATIC TRANSMISSION WILL ABRUPTLY WITHOUT WARNING STAY STUCK IN A LOW GEAR WHILE I AM DRIVING. I TURN OFF THE CAR AND START IT AGAIN AND IT'S FINE. MY COMPUTER SCREEN WILL GO BLACK AND STAY THAT WAY, WHICH CONTROLS THE RADIO, NAVIGATION, ETC., THEN IT WILL BEGIN WORKING AGAIN AFTER A FEW MINUTES, HOURS, DAYS, JUST WHENEVER IT DECIDES TO START WORKING. THE SCREEN HAS ALSO HAD RAPID MOVING LINES OF BLACK AND WHITE. MY LEFT TURN SIGNAL WORKS, BUT YET IT CONSTANTLY HAS A RAPID TURN SIGNAL SOUND LIKE IT IS GOING OUT OR IS OUT, YET EVEN WHEN I CHANGE THE BULB IT STILL MAKES THE SOUND. THE POWER STEERING I JUST FIXED A MONTH AGO, ALL OTHER ISSUES ARE ON GOING.
NHTSA ODI #11244548
89,507 miles · Jun 14, 2019
Electrical SystemEngineExterior Lighting
WHEN DRIVING THE VEHICLE IT STOPS OUT OF NOWHERE AND CUTS BACK ON. THERE IS A BURNING/MELTING SMELL COMING FROM THE BACK OF THE VEHICLE. ONCE THE CAR IS OFF SOMETIMES THE BATTERY IS DRAINED. THE DRIVER SIDE HEAD LIGHT KEEPS GETTING MOISTURE INSIDE AND CAUSES THE BULB TO GO OUT.
NHTSA ODI #11220023
100,000 miles · Apr 11, 2019
Electrical System
TAKATA RECALL.....THE ECM IS STILL NOT FUNCTIONING PROPERLY AFTER THE RECALL IT NEEDS TO BE RECALLED AGAIN. IT IS VERY DANGEROUS CAR WILL CUT OFF IN THE MIDDLE OF TRAFFIC.SOMETHING NEEDS TO BE DONE!!!!!
NHTSA ODI #11195612
56,000 miles · Nov 29, 2018
Electrical SystemUnknown Or Other
,A MONTH AGO MY DRIVER HEADLIGHT WENT OUT TRIED REPLACING BULBS TWICE STILL NO LIGHT TRIED A RELAY SWITCH STILL NOT LIGHT, LIGHT WENT OUT WHILE DRIVING TO WORK.
NHTSA ODI #11154722
50,000 miles · Oct 31, 2018
Electrical SystemExterior Lighting
LIGHT ON DRIVER SIDE CONTINUE TO BLOW LIGHT OR BULB
NHTSA ODI #11144587
2 miles · Oct 31, 2018
Electrical System
MY CAR HAVE AN ELECTRICAL PROBLEM IS GAS/ELECTRICAL , AND DON'T CHARGE, REPLACE BATTERY AND PROBLEM CONTINUE; CALL TO BUICK CONCESSIONARY FOR RECALL BECAUSE FIND THAT THESE MODEL AND YEAR MAKE A VEHICLES HAVE ELECTRICAL PROBLEMS, BUT THE PERSON TELL ME IF DON T HAVE RECALLS FOR MY SPECIFIC CAR VIN NUMBER; I DON'T KNOW WHAT HAPPE…
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MY CAR HAVE AN ELECTRICAL PROBLEM IS GAS/ELECTRICAL , AND DON'T CHARGE, REPLACE BATTERY AND PROBLEM CONTINUE; CALL TO BUICK CONCESSIONARY FOR RECALL BECAUSE FIND THAT THESE MODEL AND YEAR MAKE A VEHICLES HAVE ELECTRICAL PROBLEMS, BUT THE PERSON TELL ME IF DON T HAVE RECALLS FOR MY SPECIFIC CAR VIN NUMBER; I DON'T KNOW WHAT HAPPENED BUT MY CAR HAVE VERY ELECTRICAL PROBLEM, REPLACE TWO BATTERIES AND CONTINUE WITH THE PROBLEM, AND ALTERNATOR NOBODY FIXED BECAUSE IS VERY RARE, AND THE PRICE FOR REPLACE ALTERNATOR IS VERY HIGH EXPENSIVE, MY CAR HAVE THESE PROBLEM AND THE BUICK AGENCYS OR CONCESIONARIES ARE THE RESPOSIBLES FOR DEFECTUOS OR MISTAKES ON YOURS VEHICLES MANUFACTURED.
NHTSA ODI #11144532
57,000 miles · Aug 30, 2018
Electrical System
THE LIGHT WENT OUT ON THE DRIVER INFORMATION CENTER. CAN'T SEE THE MILEAGE, GAS, SPEED LIMIT, OR TIRE WEIGHT. WITH NO WARNING, THE LIGHT WENT OUT. TOOK THE VEHICLE TO BUICK AND THEY CAN REPAIR BUT WILL HAVE TO OPEN THE ENTIRE CLUSTER TO FIX THE PROBLEM (EST. $800 TO FIX).
NHTSA ODI #11123408
165,000 miles · Jul 23, 2018
Electrical SystemEngineFuel/propulsion System
GM DEALERSHIP MISDIAGNOSED THE TRANSMISSION AS NEEDING REPLACEMENT, AND QUOTE A $4500 REPAIR PRICE. AFTER GETTING 3 ALTERNATIVE EXPERT OPINIONS, THE PROBLEM WAS THE THROTTLE BODY; REPAIRED FOR $420. NOW THE FORMERLY RECALLED GENERATOR ALTERNATOR HAS FAILED. CAR WILL NOT RESTART WHEN STOPPED, WHILE DRIVING. GM HAS TOLD ME THEY …
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GM DEALERSHIP MISDIAGNOSED THE TRANSMISSION AS NEEDING REPLACEMENT, AND QUOTE A $4500 REPAIR PRICE. AFTER GETTING 3 ALTERNATIVE EXPERT OPINIONS, THE PROBLEM WAS THE THROTTLE BODY; REPAIRED FOR $420. NOW THE FORMERLY RECALLED GENERATOR ALTERNATOR HAS FAILED. CAR WILL NOT RESTART WHEN STOPPED, WHILE DRIVING. GM HAS TOLD ME THEY WILL NOT REPLACE THE FORMERLY RECALLED PART UNDER WARRANTY, OR BUT NOT IF FOR MISDIAGNOSING THE TRANSMISSION AND THE PART FAILING WHEN GARNERING 2ND OPINIONS. GM ALSO TOLD ME THAT IT IS NOT THE DEALERSHIP'S JOB TO ALERT A CUSTOMER OF A RECALL. IF THAT IS THEIR PROCESS FOR RECALLS, I AM AFRAID FOR THE LIVES OF OTHERS. I AM ALSO AFRAID THAT THEY POSSIBLY DON'T EVEN UNDERSTAND HOW TO DIAGNOSE A VEHICLE PROBLEM IN THE FIRST PLACE. THEY CONFIRMED THE PART NOW IN QUESTION WAS FUNCTIONING PROPERLY AT THEIR DEALERSHIP, BUT RECOMMENDED A NEW TRANSMISSION DUE TO HIGH MILES ON THE VEHICLE. THIS IS A GENUINE GM DEALERSHIP. I'D LIKE THE GM/ALTERNATOR, CONTROL MODULE, AND OTHER ASSOCIATE PARTS INVESTIGATED FOR VOLTAGE FAILURES RELATED TO THROTTLE BODY FAILURE. IT IS MY UNDERSTANDING THAT IF GM IS REPLACING TRANSMISSIONS, WHEN NOT NEEDED, AND THE OTHER PARTS EVENTUALLY FULLY FAIL, CONSUMERS ARE AT EXTREME RISK. MY 19 YEAR OLD DAUGHTER WAS STUCK AT A COMPLETE STOP, FOR NEARLY 30 SECONDS SEVERAL TIMES, ON A 70 MPH FREEWAY, WHEN TRAFFIC CAME TO A HALT, THEN RESTARTED; REACHING FULL SPEED AND HAVING TO VEER AND SLAM ON BRAKES TO AVOID HER CAR; IN THE CENTER LANE. PLEASE INVESTIGATE. [XXX]. I WILL ALSO BE FILING A COMPLAINT WITH THE SECRETARY OF STATE OF MICHIGAN FOR VEHICLE REPAIR SHOP REGULATION. DEALERSHIPS WHO ARE READING CODES, AND NOT VERIFYING THE CODES, SHOULD BE SHUT DOWN FOR GOOD. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *PM *TR
NHTSA ODI #11113038
130,000 miles · Jul 6, 2018
Electrical System
TL* THE CONTACT OWNS A 2013 BUICK REGAL. WHILE DRIVING VARIOUS SPEEDS, THE BATTERY AND BATTERY CHARGING SYSTEM WARNING INDICATORS ILLUMINATED AND THE VEHICLE STALLED. THE CONTACT STATED THAT THE VEHICLE EXHIBITED THE SAME SYMPTOMS AS LISTED IN NHTSA CAMPAIGN NUMBER: 13V173000 (ELECTRICAL SYSTEM); HOWEVER, HIS VEHICLE WAS NOT A H…
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TL* THE CONTACT OWNS A 2013 BUICK REGAL. WHILE DRIVING VARIOUS SPEEDS, THE BATTERY AND BATTERY CHARGING SYSTEM WARNING INDICATORS ILLUMINATED AND THE VEHICLE STALLED. THE CONTACT STATED THAT THE VEHICLE EXHIBITED THE SAME SYMPTOMS AS LISTED IN NHTSA CAMPAIGN NUMBER: 13V173000 (ELECTRICAL SYSTEM); HOWEVER, HIS VEHICLE WAS NOT A HYBRID. THE VEHICLE WAS TAKEN TO CHUCK NASH SAN MARCOS (3209 INTERSTATE 35 FRONTAGE RD, SAN MARCOS, TX 78666) WHERE IT WAS DIAGNOSED, BUT THE CAUSE OF THE FAILURE COULD NOT BE DETERMINED. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THE PART WAS UNDER WARRANTY, BUT THE VEHICLE WAS NOT INCLUDED IN THE RECALL. THE MANUFACTURER OPENED CASE NUMBER: 8-4380703853. THE FAILURE MILEAGE WAS 130,000.
NHTSA ODI #11109849
55,000 miles · Jan 31, 2018
Electrical SystemEngineService Brakes
MY NAME IS [XXX] , I OWN A 2013 BUICK REGAL TURBO, ABOUT 4 MONTHS AGO I STARTED HAVING ELECTRICAL ISSUES WITH MY CAR ( STEREO SHUTS ON AND OFF WHILE DRIVING, DASH LIGHTS FLICKER ). THINKING MY CAR NEEDED A NEW BATTERY I HAD THE BATTERY REPLACED. NO PROBLEMS FOR ABOUT A MONTH. NOT LONG AFTER, THE PROBLEM CAME BACK, EXCEPT THIS TI…
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MY NAME IS [XXX] , I OWN A 2013 BUICK REGAL TURBO, ABOUT 4 MONTHS AGO I STARTED HAVING ELECTRICAL ISSUES WITH MY CAR ( STEREO SHUTS ON AND OFF WHILE DRIVING, DASH LIGHTS FLICKER ). THINKING MY CAR NEEDED A NEW BATTERY I HAD THE BATTERY REPLACED. NO PROBLEMS FOR ABOUT A MONTH. NOT LONG AFTER, THE PROBLEM CAME BACK, EXCEPT THIS TIME THE CAR SHUT OFF WHILE DRIVING, CAUSING ALL ELECTRONICS TO STOP WORKING, INCLUDING THE HEADLIGHTS, POWER STEERING, AND BRAKES. I DROVE IT TO A GM DEALER RIGHT AWAY. 1 WEEK GOES BY AND I GET A CALL BACK SAYING THEY COULDN'T RE-CREATE THE PROBLEM. I PICK THE CAR UP AND WITHIN ONE DAY IT STALLS AGAIN, THIS TIME DRIVING AT NIGHT ON THE HIGHWAY. AGAIN I BRING IT RIGHT TO THE GM DEALER. ANOTHER WEEK GOES BY AND I GET A CALL SAYING THEY REPLACED THE BCM ( BODY CONTROL MODULE ). AS I WAS DRIVING TO WORK THIS MORNING, ABOUT A MONTH AFTER THE REPAIR, THE STEREO SHUTS OFF, SOON AFTER THE DASH LIGHTS FLICKER, AND ALMOST RIGHT AFTER THE DASH LIGHTS STARTED FLICKERING THE CAR SHUT OFF, THE DOORS UNLOCKED, AND I LOSE THE POWER STEERING AND POWER BRAKE ASSIST CAUSING ME TO LOSE CONTROL OF THE VEHICLE AROUND A SHARP TURN AND NEARLY CRASH. I'M HONESTLY AFRAID TO DRIVE THIS CAR NOW, AND I'M NOT THE ONLY ONE WHO HAS HAD THIS HAPPEN TO THEM. I SPENT A GOOD 2 HOURS READING PEOPLES STORIES ONLINE ABOUT HOW THEY HAD THE SAME EXACT EXPERIENCE AND HOW THEY ARE ALSO AFRAID TO DRIVE THIS CAR. THE DEALERSHIP IS UNABLE TO FIX MY CAR AND NOW I'M STUCK WITH A CAR THAT IS WORTH LESS THAN WHAT I OWE ON IT, A CAR I HAVE TO WORRY ABOUT DRIVING, A CAR I'M AFRAID TO HAVE PASSENGERS IN DUE TO THIS MAJOR SAFETY ISSUE. IF AN ACCIDENT OCCURRED AS A RESULT OF THIS MALFUNCTION I WOULD IMAGINE THE MALFUNCTION WOULD PREVENT THE AIRBAGS FROM DEPLOYING. BEFORE I BOUGHT THIS 2013 BUICK REGAL I WAS DRIVING A 1992 FORD F-150, AND ITS SAD TO SAY I FELT A LOT SAFER IN AN ANTIQUE TRUCK. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #11066121
Official recalls
6Feb 26, 2026
General Motors, LLC (GM) is recalling certain 2012–2013 Buick Regal Turbo and GS trim-level vehicles that were sold or ever registered, in Connecticut, Delaware, District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. The rear suspension toe links may have received improper corrosion protection, which can result in rear toe link fracture.
Consequence & remedy
Consequence: Rear toe link fracture can cause a loss of vehicle control, increasing the risk of a crash.
Remedy: Dealers will replace the rear suspension toe links and adjuster fasteners, free of charge. Owner notification letters were mailed April 3, 2026. Owners may contact Buick customer service at 1-800-521-7300. GM's number for this recall is N252537580. This recall expands previous NHTSA recall numbers 20V764, 21V633, and 21V00F.
Dec 22, 2021
General Motors, LLC (GM) is recalling certain 2010-2013 Buick Lacrosse, 2012-2013 Buick Regal, and 2013 Chevrolet Malibu vehicles sold or ever registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. These vehicles may have rear toe links that received an improper amount of electrocoating (e-coat) corrosion protection, which could cause the e-coat to become brittle and break away when contacted by road debris. Over time, the e-coat may chip away, exposing the metal toe link and making it more susceptible to corrosion. Corrosion may eventually cause the toe link to thin and ultimately fracture.
Consequence & remedy
Consequence: A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk of a crash.
Remedy: Dealers will replace the rear suspension toe links and adjuster fasteners, free of charge. Owner notification letters were mailed January 27, 2022. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212346640. This recall is an expansion of NHTSA recalls 20V-764 and 21V-633.
Aug 12, 2021
General Motors, LLC (GM) is recalling certain 2013 Buick Regal, Chevrolet Malibu, and Buick Lacrosse vehicles sold or ever registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. These vehicles may have rear toe links that received excessive electrocoating (e-coat) corrosion protection, which could cause the e-coat to become brittle and break away when contacted by road debris. Over time, the e-coat may chip away, exposing the metal toe link and making it more susceptible to corrosion. Corrosion may eventually cause the toe link to thin and ultimately fracture.
Consequence & remedy
Consequence: A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk of a crash.
Remedy: Dealers will replace the rear suspension toe links and adjuster fasteners, free of charge. Interim owner notification letters were mailed on September 30, 2021. Owner notification letters were mailed on January 3, 2022. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N212330130.
Dec 21, 2020
General Motors, LLC (GM) is recalling certain 2012-2013 Buick Regal, 2013 Chevrolet Malibu, and 2010-2013 Buick Lacrosse vehicles sold or ever registered in Connecticut, Delaware, the District of Columbia, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, or Wisconsin. These vehicles may have rear toe links that received excessive electrocoating (e-coat) corrosion protection, which could cause the e-coat to become brittle and break away when contacted by road debris. Over time, the e-coat may chip away, exposing the metal toe link and making it more susceptible to corrosion. Corrosion may eventually cause the toe link to thin and ultimately to fracture.
Consequence & remedy
Consequence: A rear toe link fracture may reduce the driver's ability to control the vehicle, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the rear suspension toe links and adjuster fasteners free of charge. Parts are not currently available. Owners were mailed an interim notification on January 27, 2021, and April 15, 2021. A third notification was mailed on August 19, 201. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202308930.
May 6, 2013
General Motors (GM) is recalling certain model year 2012 and 2013 Buick LaCrosse and Regal, and model year 2013 Chevrolet Malibu Eco vehicles equipped with eAssist. These vehicles may have a condition in which the Generator Control Module (GCM) may not function properly. This could cause a gradual loss of battery charge and the illumination of the malfunction indicator light.
Consequence & remedy
Consequence: If the vehicle is continued to be driven, the engine may stall and/or the vehicle may not start. In addition, there may be a burning or melting odor, smoke, and possibly a fire in the trunk.
Remedy: GM will notify owners and dealers will test the GCM and replace it, as necessary, free of charge. The recall began on June 11, 2013. Owners may contact GM at 1-800-521-7300. GM's recall campaign number is 13136.
Oct 4, 2012
General Motors LLC (GM) is recalling certain model year 2011-2013 Buick Regal and model year 2013 Chevrolet Malibu vehicles. These vehicles are equipped with two turn signal bulbs in each front turn signal. If one of the two front turn signal bulbs burn out in either front turn signal lamp, there is no indication to the driver. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence & remedy
Consequence: If the driver is not aware that a turn signal is not functioning properly, the driver may continue to drive the vehicle. If half of a front turn signal is not illuminating, other driver's may not be aware that the affected vehicle is turning, thereby increasing the risk of a crash.
Remedy: GM will notify owners, dealers will update the body control module software, free of charge. The recall began in September 2014. Owners may contact Buick at 1-800-521-7300 or Chevrolet at 1-800-222-1020. GM's number for this recall is 12212.
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
2AQ14001 · Sands Chevrolet/hybrid System Fire/stall
Opened May 2, 2014 · Closed May 22, 2016
Status: closed (inferred from source dates) · Electrical System
NHTSA opened AQ14-001 to determine whether Sands Chevrolet of Surprise, Arizona 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 and deliver a new vehicle subject to a recall unless the recall remedy has been performed (49 U.S.C. ?? 30112(a), 30120(i)).NHTSA issued an information request (IR) letter to Sands Chevrolet on May 5, 2014.Sands Chevrolet responded to this request on May 22, 2014.To ensure NHTSA?s information request encompassed all possible reference codes for General Motors recall 13V-173, NHTSA issued another IR letter to Sands Chevrolet on June 8, 2015.Again, a response letter was received on June 9, 2015.NHTSA?s investigation indicated that Sands Chevrolet did sell and deliver recalled vehicles that did not have the recall remedy completed at the time the vehicles were delivered to the customers.NHTSA therefore concluded that Sands Chevrolet was liable for civil penalties for violations of the Safety Act, pursuant to 49 U.S.C. ? 30165.Under a Settlement Agreement dated March 24, 2016, Sands Chevrolet represented that it improved its processes to verify that it checks every vehicle for recalls prior to delivery to the purchaser and that it has not sold and delivered any unremedied new motor vehicles since June 9, 2015.Sands Chevrolet also represented that it now also checks for open recalls on every customer vehicle brought in for service, and that it checks for open recalls on every used trade-in vehicle, regardless of make or model, and takes steps to have all used trade-in vehicles repaired prior to retail sale. Sands Chevrolet admitted to violating the law and must pay civil penalties in the amount of $40,000.This Audit Query is closed.
RQ13003 · Generator Control Module Fires
Opened Jul 5, 2013 · Closed Jul 22, 2014
Status: closed (inferred from source dates) · Electrical System:propulsion System:traction Battery
On July 5, 2013 the Office of Defects Investigation (ODI) opened Recall Query RQ13-003 to investigate whether the service procedures utilized in recall bulletins 13136 and 13142 for safety recall 13V-173 were sufficient to identify the safety defect in the subject vehicles.These safety recalls were issue on May 3, 2013 to address the improper function of the Generator Control Module (GCM) in certain model year (MY) 2012-13 Buick LaCrosse and Regal and MY 2013 Chevrolet Malibu Eco equipped with eAssist.This condition may result in a loss of battery charge, engine stall and/or inability for the vehicle to start.In severe cases it may also lead to odor, smoke and possibly a fire in the trunk.During discussions with General Motors (GM), ODI was informed that the subject vehicles could be separated into 4 distinct build populations, or groups. Group A contained vehicles built from the start of production through 3/19/2012.Group B involved vehicles built from 3/20/2012 to 8/20/2012, group C from 8/21/2012 to 12/31/12, and group D from 1/1/2013 onwards.Bulletin 13136 instructed dealers to inspect and, if necessary, replace the GCM for vehicles in groups A or C.Bulletin 13142 instructed dealers to replace the GCM of any vehicle in group B.Group D vehicles were not recalled.All eAssist vehicles have a Powerpack which contains a BAS (belt alternator-starter) Power Inverter Module (BPIM)/Accessory Power Module (APM) and a 115-V Lithium-Ion battery.The Powerpack is known by GM's Part Description System as the GCM and Battery Module. The BPIM/APM contains 3 multi-layered printed circuit boards (PCBs) comprised of conductive layers separated by isolating layers.Vehicles built within the time periods of groups A and B had PCBs using single isolation layers.Vehicles build in group C had dual isolation layers on 1 of the 3 PCBs, and group D had all 3 PCBs built with dual insulation.Adding dual insulation to a PCB makes it more robust to material and manufacturing variations, and ultimately less susceptible to an electrical short circuit and subsequent failure.Through initial analysis of the GCM failures, GM identified that vehicles within group B contained PCBs that were contaminated during production due to increased production volumes that resulted in inadequate quality control.GM also noted that GCM failures occurred early in the life of the vehicle (typically <1000 miles).Therefore a service procedure was developed to replicate early life failures by subjecting the GCM to high current loads which would cause the identified failure mechanism (copper migration) to occur quickly and reveal any underlying PCB defect.Although groups A and C were built with PCBs containing single layer PCBs, they were built using better quality control, and as the data supports, experienced significantly lower failures.GM advised that for these reasons the two different service procedures were used in the Recall 13V-173 population.In response to ODI's Information Request (IR) GM submitted 234 unique reports related to the alleged problem. It was noted that 197 (84%) of the received reports fell into the group B population.The 2 fire incidents noted were events in which flames were evident and/or damage was experienced outside of the GCM. Both of these incidents involved group B vehicles. One hundred four warranty claims were also submitted in response to the IR, with 96 claims (92%) from group B.It was also noted that none of the claims from groups A or C occurred after the service procedure was conducted, and that the majority of the A or C incidents occurred during the service procedure.Given the data, ODI believes the ser