SO IM DRVING DOWN THE EXPRESSWAY I57 AT ABOUT 85MPH AND THE CAR BEEPS 3 TIMES DISPLAYING SERVICE STABILATRACK/ SERVICE TRACTION AND CHECK ENGINE SECONDS LATER THE CAR COMPLETELY CUT OFF. WHILE IN TRAFFIC. *TR
2008 Chevrolet Impala
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Impala years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
665 reports with mileage · 145 unknown
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 221 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 134 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Suspension. Review the 117 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Electronic Stability Control (esc) complaints
58 reportsTHE AIRBAG LIGHT WILL NOT GO OUT, THE STABILITY CONTROL LIGHT COMES ON AND THE CAR LOSES POWER AND THE ENGINE STARTS TO CUT OFF. I HAVE SENT MY CAR TO THE DEALERSHIP TWICE FOR THE SAME PROBLEM I HAVE EVEN CALLED THE CHEVROLET CORPORATE OFFICE. EACH TIME I GET A DIFFERENT ANSWER AS TO WHAT THE PROBLEM IS THE FIRST TIME. I WAS TOL…
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THE AIRBAG LIGHT WILL NOT GO OUT, THE STABILITY CONTROL LIGHT COMES ON AND THE CAR LOSES POWER AND THE ENGINE STARTS TO CUT OFF. I HAVE SENT MY CAR TO THE DEALERSHIP TWICE FOR THE SAME PROBLEM I HAVE EVEN CALLED THE CHEVROLET CORPORATE OFFICE. EACH TIME I GET A DIFFERENT ANSWER AS TO WHAT THE PROBLEM IS THE FIRST TIME. I WAS TOLD IT WAS SENSORS THAT NEEDED TO BE REPLACE AND THAT IT WOULD COST $1200. THIS TIME I WAS TOLD IT WAS THE SPARK PLUGS THAT IS CAUSING THE CAR TO SHUT DOWN AND THE COST WOULD BE AROUND $400 OR $500. THE FIRST SERVICE IN JULY MY RECEIPT SAYS THEY DID A MULTI-POINT INSPECTION WOULD THAT NOT TELL THEM MY PLUGS WERE BAD? MY CAR IS STILL AT FRIENDLY CHEVROLET IN DALLAS CAN YOU PLEASE HELP. MY DAUGHTER DRIVES THIS CAR AND SHE A HIGH RISK PREGNANCY. *TR
I WAS DRIVING TO WORK GOING ABOUT 60 MPH ON THE BELTWAY AND THE TRACTION CONTROL LIGHT CAME ON AND THEN THE NOTIFICATION LIGHT SAID THAT THE ENGINE SPEED WAS REDUCED CHECK TRACTION CONTROL. I COULDN'T GO PAST 40 MPH. I MADE IT TO WORK AND PARKED THE CAR. I WENT BACK 8 AND HALF HOURS LATER THINKING IT WASN'T GOING TO START OR …
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I WAS DRIVING TO WORK GOING ABOUT 60 MPH ON THE BELTWAY AND THE TRACTION CONTROL LIGHT CAME ON AND THEN THE NOTIFICATION LIGHT SAID THAT THE ENGINE SPEED WAS REDUCED CHECK TRACTION CONTROL. I COULDN'T GO PAST 40 MPH. I MADE IT TO WORK AND PARKED THE CAR. I WENT BACK 8 AND HALF HOURS LATER THINKING IT WASN'T GOING TO START OR I WASN'T GOING TO BE ABLE TO GET HOME. I STARTED THE CAR AND WAS FINE. I HAVEN'T HAD THE ISSUE SINCE. OF COURSE I RESEARCHED AND THIS IS AN ONGOING ISSUE WITH THIS CAR. HOPEFULLY THERE WILL BE A RECALL. IT IS A SHAME THAT PEOPLE HAVE TO PAY MONEY TO FIX THINGS THAT MANY ARE HAVING ISSUES WITH. APPARENTLY, IT IS THE TRAVEL PEDAL SENSOR. SO NOW I HAVE TO FIX THE TRAVEL PEDAL SENSOR AND GET THE KEY FROM BEING STUCK IN THE IGNITION. ANOTHER COMPLAINT MADE TODAY BY SEPARATE ENTRY. *TR
WHILE DRIVING 65MPH VEHICLE JUST DIED. WAS NOT ABLE TO START FOR ABOUT 15 MINS. THIS HAS HAPPENED SEVERAL TIMES NEARLY CAUSING SEVERAL ACCIDENTS. THE VEHICLE INTERMITTENTLY HAS REDUCED ENGINE POWER WHILE DRIVING AND JERKS FROM A COMPLETE STOP SOMETIMES. NOW THE OIL ENGINE PRESSURE/TURN OFF ENGINE LIGHT AND ALARM GO OFF ALL T…
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WHILE DRIVING 65MPH VEHICLE JUST DIED. WAS NOT ABLE TO START FOR ABOUT 15 MINS. THIS HAS HAPPENED SEVERAL TIMES NEARLY CAUSING SEVERAL ACCIDENTS. THE VEHICLE INTERMITTENTLY HAS REDUCED ENGINE POWER WHILE DRIVING AND JERKS FROM A COMPLETE STOP SOMETIMES. NOW THE OIL ENGINE PRESSURE/TURN OFF ENGINE LIGHT AND ALARM GO OFF ALL THE TIME. REPLACE THE SENSOR, BUT TO NO AVAIL. THE LOUD KNOCKING SOUND FROM THE DASH IS UTTERLY ANNOYING. I THINK THE FACT THAT ONLY THE POLICE CARS GOT RECALLED IS INSANE, NO MATTER WHAT THE RECALL WAS. I'M SURE ONCE THEY TOOK THOSE VEHICLES IN; ALL THE OTHER ISSUES I HAVE MENTIONED WERE ALSO FIXED. ALSO THE REAR DRIVER SIDE POWER LOCK IS FAULTY AND UNSAFE WHEN TRAVELING WITH YOUNG CHILDREN. I HONESTLY BELIEVE WITH SO MANY CONSUMERS HAVING THE EXACT SAME PROBLEMS, GM SHOULD ISSUE A RECALL ON THESE VEHICLES BEFORE SEVERAL TRAGEDIES OCCUR AND WE THEN JUST BECOME STATISTICS. PLEASE HELP. THERE ARE SO MANY OF US OUT HERE WITH THE EXACT SAME ISSUES ON THESE IMPALAS WHO SHOULD NOT HAVE TO PAY FOR THE REPAIR OF SOMETHING THAT APPARENTLY SHOULD BE RECALLED BY GM. THANK YOU FOR YOUR ATTENTION TO THIS MATTER. *TR UPDATED 2/18/2015 *JS
SERVICE TRACTION CONTROL/ENGINE POWER REDUCED LIGHTS CAME ON DASH. CAR LOST ALL POWER AND WHEN STOMPING THE GAS PEDAL SPEED WOULD RESUME, VERY HESITANT FROM A DEAD STOP. CAR WAS JERKING, SHUT OFF TRACTION CONTROL AND CAR JERKED THEN TOO. GM NEEDS TO FIX THIS BEFORE THERE ARE DEATHS. ALSO I HAVE NO UNLOCKING DOORS. THEY HAVE TO A…
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SERVICE TRACTION CONTROL/ENGINE POWER REDUCED LIGHTS CAME ON DASH. CAR LOST ALL POWER AND WHEN STOMPING THE GAS PEDAL SPEED WOULD RESUME, VERY HESITANT FROM A DEAD STOP. CAR WAS JERKING, SHUT OFF TRACTION CONTROL AND CAR JERKED THEN TOO. GM NEEDS TO FIX THIS BEFORE THERE ARE DEATHS. ALSO I HAVE NO UNLOCKING DOORS. THEY HAVE TO ALL BE MANUALLY UNLOCKED. BATTERY WAS REPLACED IN CAR AND ON KEY FAB. GAS PEDAL SENSOR AND THROTTLE BODY SENSOR ARE THE TRIGGERED CODES, GM NEEDS TO FIND THE REAL SOLUTION AS THESE DON'T SEEM TO FIX PROBLEM. *TR
THIS IS THE SECOND INCIDENT WE HAVE HAD WITH OUR 2008 CHEVROLET IMPALA WHERE THIS PROBLEM HAS OCCURRED. THE MOST RECENT INCIDENT WAS ON WEDNESDAY MAY 21ST, AROUND 730 PM. MY WIFE WAS DRIVING ON A ROAD WITH A POSTED SPEED LIMIT OF 45 MILES PER HOUR, SHE SAID SHE WAS GOING ABOUT 48 WHEN THE TRACTION CONTROL LIGHT CAME ON, AND THE …
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THIS IS THE SECOND INCIDENT WE HAVE HAD WITH OUR 2008 CHEVROLET IMPALA WHERE THIS PROBLEM HAS OCCURRED. THE MOST RECENT INCIDENT WAS ON WEDNESDAY MAY 21ST, AROUND 730 PM. MY WIFE WAS DRIVING ON A ROAD WITH A POSTED SPEED LIMIT OF 45 MILES PER HOUR, SHE SAID SHE WAS GOING ABOUT 48 WHEN THE TRACTION CONTROL LIGHT CAME ON, AND THE MESSAGING SYSTEM INDICATED "REDUCED ENGINE POWER." WHEN THIS HAPPENS THE VEHICLE SLOWS RATHER RAPIDLY, AND THEN IT IS IMPOSSIBLE TO ACCELERATE BEYOND ABOUT 30 MILES PER HOUR OR SO. DUE TO THE RAPID DECLINE IN SPEED AND THE FACT THAT THIS OCCURS WITHOUT WARNING, I BELIEVE THIS SHOULD BE AN IMMEDIATELY ACTED UPON PROBLEM. I CONTACTED GM ONLY TO BE TOLD THAT I HAVE TO TAKE IT TO GET IT LOOKED AT BY ONE OF THEIR LOCAL DEALERSHIPS, AND PAY FOR THAT DIAGNOSTIC. IN MY ONLINE RESEARCH I HAVE DISCOVERED MANY, PROBABLY IN THE HUNDREDS, WHO'VE EXPERIENCED THIS IDENTICAL ISSUE. SOME OF WHICH HAVE TAKE THEIR CAR TO GM WHO HAS CONCLUDED ACCORDING TO POST OF EXPERIENCES ON EDMUNDS THAT THEY WERE UNABLE TO DETERMINE THE SOURCE OF THE PROBLEM OR REPAIR IT. THIS IS A PROBLEM THAT REQUIRE IMMEDIATE ATTENTION. I CAN'T IMAGINE HOW DIFFERENTLY THIS COULD HAVE GONE SHOULD MY WIFE HAVE BEEN GOING 75 MPH ON INTERSTATE 80. WE LIVE ALONG I-80 AND TRAVEL IT FREQUENTLY. HOWEVER AS A RESULT OF THIS PROBLEM WE ARE ESSENTIALLY UNABLE TO TRUST OUR VEHICLE BEYOND ABOUT 50 MILES PER HOUR. *TR
I DRIVE THE CAR AND IT SAYS ENGINE POWER REDUCED STABILATRAK IT SLOWS DOWN AND IT FEELS FORCED TO DRIVE SO I PULL TO THE SIDE OF THE ROAD WAIT ABOUT 10 TO 15 MINUTES AND IT STARTS BUT THEN IT GOT TO THE POINT WERE IT WASN'T EVEN DRIVABLE WITH IT STATING ENGINE POWER REDUCED STABILATRAK SO I CALLED CHEVY IN MODESTO CA ASKED IF T…
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I DRIVE THE CAR AND IT SAYS ENGINE POWER REDUCED STABILATRAK IT SLOWS DOWN AND IT FEELS FORCED TO DRIVE SO I PULL TO THE SIDE OF THE ROAD WAIT ABOUT 10 TO 15 MINUTES AND IT STARTS BUT THEN IT GOT TO THE POINT WERE IT WASN'T EVEN DRIVABLE WITH IT STATING ENGINE POWER REDUCED STABILATRAK SO I CALLED CHEVY IN MODESTO CA ASKED IF THERE WAS A RECALL THEY SAID NO AND I TOLD THEM I SEEN A LOT OF COMPLAINTS ON LINE WITH THE SAME PROBLEMS I WAS GOING THROUGH THEY SAID YOU CANT BELIEVE EVERYTHING ONLINE MISS I TOOK THE CAR INTO THE A MECHANIC I KNOW HE DIAGNOSED IT AS BEING A THROTTLE SENSOR AND PEDAL SENSOR CHARGED ME 587$ I THOUGHT THE PROBLEM WAS SOLVED A WEEK LATER IT DID AGAIN ENGINE POWER REDUCED BUT THIS TIME IT STARTED OVER HEATING TO IVE HAD NOTHING BUT PROBLEMBS WITH THIS CAR IVE ALSO CHANGED THE TIRES NUMEROUS TIMES THE SENSOR FOR TIRES IS ALWAYS LIGHTHING UP AND SAYING CHECK LEFT FRONT TIRE OR BACK TIRE I TAKE IT TO THE TIRE SHOP THEY SAY TIRES ARE FINE BUT THE BACK ONES NEED TO BE CHANGED I CHANGE THE BACK TIRES IT STILL SAYS CHECK BACK TIRES IVE ALSO HAD THE SUSPENSION FIXED A FEW TIMES WHEN ITSWINDY I FEEL THE CAR MOVING FROM SIDE TO SIDE I ALSO HAVE HAD ENGINE PROBLEMS WITH THE TRANSMISSION WAS REPLACED NOWIT HAS HAS 2 BLOWN HEAD GASKETS ALL IN ALL THE PAST 2 TO 3 YEARS I HAVE PAYED 4 TO 6,000 IN REPAIR AND ITSSTILL RUNNING LIKE WITH IT STATING ENGINE POWER REDUCED STABILATRAK I NEED MY VEHICLETO BEFIXED OF THIS PROBLEM. *TT
EVERY TIME I WOULD DRIVE THE 08 CHEVY IMPALA THE KEY WOULD NOT TURN ALL THE WAY OUT. IT DID THAT FOR ABOUT A WEEK. THEN WHEN I MADE IT TO WORK IT DID THE SAME THING. CAME OUT TO GO HOME IT WOULD NOT START AT ALL THE KEY WOULDN'T TURN OVER. SO WE HAD TO PUT IT IN MANUAL MODE TO DRIVE IT TO A SHOP. A WIRE IN THE HANDLE TO CHANGE G…
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EVERY TIME I WOULD DRIVE THE 08 CHEVY IMPALA THE KEY WOULD NOT TURN ALL THE WAY OUT. IT DID THAT FOR ABOUT A WEEK. THEN WHEN I MADE IT TO WORK IT DID THE SAME THING. CAME OUT TO GO HOME IT WOULD NOT START AT ALL THE KEY WOULDN'T TURN OVER. SO WE HAD TO PUT IT IN MANUAL MODE TO DRIVE IT TO A SHOP. A WIRE IN THE HANDLE TO CHANGE GEARS BROKE BECAUSE I WAS TOLD THE WIRE WAS TO SHORT. NOW THIS WAS 42 OR 43 THOUSAND MILES NOW AT 82 ITS DOING THE SAME THING AGAIN. WHY NO RECALL? *TR
TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS, THE TRACTION CONTROL, STABILITY TRACK AND ENGINE REDUCE POWER WARNING LAMP ILLUMINATED. AFTER THE WARNING LAMPS ILLUMINATED, THE VEHICLE SUDDENLY DECELERATED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION. THE MANUFACTURER WAS…
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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING VARIOUS SPEEDS, THE TRACTION CONTROL, STABILITY TRACK AND ENGINE REDUCE POWER WARNING LAMP ILLUMINATED. AFTER THE WARNING LAMPS ILLUMINATED, THE VEHICLE SUDDENLY DECELERATED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR INSPECTION. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 92,000. . ..UPDATED 03-12-14 *BF THE CONSUMER STATED THE PROBLEM WAS INTERMITTENT
I HAVE A 2008 CHEVROLET IMPALA LTZ. I HAVE HAD SEVERAL OCCASIONS NOW WHEN MY CAR HAS STARTED FLASHING "SERVICE STABILITRAK" "ENGINE POWER REDUCED" "SERVICE AIRBAGS" AND THEN ALL THE CORRESPONDING LIGHTS COME ON. ONE OF THE TIMES THE VEHICLE FLASHED ALL OF THOSE WARNINGS, THE LIGHTS CAME ON AND THE CAR DIED, WHILE I WAS DRIVING.…
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I HAVE A 2008 CHEVROLET IMPALA LTZ. I HAVE HAD SEVERAL OCCASIONS NOW WHEN MY CAR HAS STARTED FLASHING "SERVICE STABILITRAK" "ENGINE POWER REDUCED" "SERVICE AIRBAGS" AND THEN ALL THE CORRESPONDING LIGHTS COME ON. ONE OF THE TIMES THE VEHICLE FLASHED ALL OF THOSE WARNINGS, THE LIGHTS CAME ON AND THE CAR DIED, WHILE I WAS DRIVING. IT LOST ALL POWER AND IT TOOK EVERYTHING I HAD TO STEER THE VEHICLE OFF THE ROAD. I HAD MY [XXX] YEAR OLD WITH ME THAT TIME AND WAS SCARED I WAS NOT GOING TO BE ABLE TO GET US TO A SAFE SPOT TO SIT AND WAIT FOR HELP. THE MOST RECENT INCIDENT HAPPENED LAST EVENING ON MY WAY HOME FROM WORK. I WAS DRIVING ON THE FREEWAY GOING ABOUT 75MPH, THE WARNINGS FLASHED AND THEN MY CAR LOST POWER AND FELT AS THOUGH IT WAS NOT HANDLING THE ROAD AS WELL AS IT SHOULD. I LIVE IN MN AND WE ARE IN THE MIDDLE OF WINTER NOW. I NEED MY CAR TO BE SAFE AND I RELY ON THIS CAR TO GET MY SON AND I TO WHERE WE NEED TO GO SAFELY! THIS IS THE ONLY VEHICLE I HAVE AND CANNOT AFFORD FOR SOMETHING TO HAPPEN TO IT. I HAVE BEEN READING SEVERAL FORUMS ABOUT OTHERS THAT THIS IS HAPPENING TO AND CAN'T HELP BUT FEEL THERE HAS TO BE SOMETHING MORE TO THE SITUATION. I WOULD FEEL HORRIBLE IF SOMETHING EVER HAPPENED TO MY FAMILY OR ANYONE ELSE BECAUSE OF MY FAULTY VEHICLE!! THIS NEEDS TO BE FIGURED OUT AND TAKEN CARE OF. *TR *DL PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
Official recalls
214V355000 · Electrical System:ignition
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.
12V377000 · Suspension:front:control Arm:lower Arm
Aug 3, 2012
General Motors (GM) is recalling certain model year 2008-2012 Chevrolet Impala police vehicles because the front lower control arms may fracture. This safety recall does not include non-police Chevrolet Impala vehicles.
Consequence & remedy
Consequence: A broken control arm can result in the loss of control of the vehicle, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace both front lower control arms, free of charge. The safety recall began on August 21, 2012. Owners may contact the Chevrolet owner center at 1-866-694-6546.
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
1DP14001 · Passenger Air Bag Ocs Algorithm
Opened Jul 22, 2014 · Closed Mar 7, 2017
Status: closed (inferred from source dates) · Air Bags; Air Bags:frontal:sensor/control MODULE-INACTIVE
The Agency received a petition on November 14, 2013 requesting an investigation into the operation of the passenger air bag Occupant Classification System (OCS) software logic and algorithm.The petitioner states that due to this alleged defect, the passenger air bag may be suppressed at point of impact and not provided the occupant protection as needed in a crash.On July 22, 2014, NHTSA opened DP14-001 to further review the crash event and perform a more comprehensive search and analysis of the Fatality Analysis Reporting System (FARS).The Agency also collected manufacturers reports on the alleged OCS issue on the subject Impala vehicles and other GM and non-GM peer vehicles.After examination of the petition and available data relating to the subject vehicle's OCS and the specific crash incident where the OCS allegedly failed to operate properly, NHTSA did not identify an issue with the MY2008 Impala involved in the subject crash, nor has it identified a safety-related defect trend existing in the OCS used in the MY 2006-2008 Impala vehicles, in GM peer vehicles or in other non-GM peer vehicles.NHTSA has concluded that further expenditure of the agency's investigative resources is not warranted. The agency accordingly has denied the petition.However, the agency will take further action if warranted by changing future circumstances. The official petition denial, as published in the Federal Register, is available in the document file for this defect petition.The single complaint and crash noted in the Failure Report above is the petitioner's VOQ (10568388) and can be reviewed online at https://www.nhtsa.gov/recalls?nhtsaId=10568388.
Additional source detail variants (2)
Air Bags:frontal:sensor/control MODULE-INACTIVE
The Agency received a petition on November 14, 2013 requesting an investigation into the operation of the passenger air bag Occupant Classification System (OCS) software logic and algorithm.The petitioner states that due to this alleged defect, the passenger air bag may be suppressed at point of impact and not provided the occupant protection as needed in a crash.On July 22, 2014, NHTSA opened DP14-001 to further review the crash event and perform a more comprehensive search and analysis of the Fatality Analysis Reporting System (FARS).The Agency also collected manufacturers reports on the alleged OCS issue on the subject Impala vehicles and other GM and non-GM peer vehicles.After examination of the petition and available data relating to the subject vehicle's OCS and the specific crash incident where the OCS allegedly failed to operate properly, NHTSA did not identify an issue with the MY2008 Impala involved in the subject crash, nor has it identified a safety-related defect trend existing in the OCS used in the MY 2006-2008 Impala vehicles, in GM peer vehicles or in other non-GM peer vehicles.NHTSA has concluded that further expenditure of the agency's investigative resources is not warranted. The agency accordingly has denied the petition.However, the agency will take further action if warranted by changing future circumstances. The official petition denial, as published in the Federal Register, is available in the document file for this defect petition.The single complaint and crash noted in the Failure Report above is the petitioner's VOQ (10568388) and can be reviewed online at https://www.nhtsa.gov/recalls?nhtsaId=10568388.
Air Bags
The Agency received a petition on November 14, 2013 requesting an investigation into the operation of the passenger air bag Occupant Classification System (OCS) software logic and algorithm.The petitioner states that due to this alleged defect, the passenger air bag may be suppressed at point of impact and not provided the occupant protection as needed in a crash.On July 22, 2014, NHTSA opened DP14-001 to further review the crash event and perform a more comprehensive search and analysis of the Fatality Analysis Reporting System (FARS).The Agency also collected manufacturers reports on the alleged OCS issue on the subject Impala vehicles and other GM and non-GM peer vehicles.After examination of the petition and available data relating to the subject vehicle's OCS and the specific crash incident where the OCS allegedly failed to operate properly, NHTSA did not identify an issue with the MY2008 Impala involved in the subject crash, nor has it identified a safety-related defect trend existing in the OCS used in the MY 2006-2008 Impala vehicles, in GM peer vehicles or in other non-GM peer vehicles.NHTSA has concluded that further expenditure of the agency's investigative resources is not warranted. The agency accordingly has denied the petition.However, the agency will take further action if warranted by changing future circumstances. The official petition denial, as published in the Federal Register, is available in the document file for this defect petition.The single complaint and crash noted in the Failure Report above is the petitioner's VOQ (10568388) and can be reviewed online at https://www.nhtsa.gov/recalls?nhtsaId=10568388.
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