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2008 Chevrolet Impala

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

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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.

51 crash reports10 fire reports36 injury reports

Engine complaints

134 reports
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61,390 miles · May 12, 2014
EnginePower TrainVehicle Speed Control

I OWN A 2008 CHEVY IMPALA WHICH HAS BEEN HAVING COMPUTER PROBLEMS FOR 1 YR NOW. IT READS OUT REDUCED ENGINE POWER AND THE CAR WONT GO FASTER THAN 40 MPH. IVE HAD IT FIXED BUT THEN COMES RIGHT BACK UP, ONE MECHANIC SAYS TO CLEAN THE THROTTLE AND ANOTHER SAYS ITS SENSORS. THIS IS BECOMING QUITE A PROBLEM AND NOBODY CAN FIX IT PERM…

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I OWN A 2008 CHEVY IMPALA WHICH HAS BEEN HAVING COMPUTER PROBLEMS FOR 1 YR NOW. IT READS OUT REDUCED ENGINE POWER AND THE CAR WONT GO FASTER THAN 40 MPH. IVE HAD IT FIXED BUT THEN COMES RIGHT BACK UP, ONE MECHANIC SAYS TO CLEAN THE THROTTLE AND ANOTHER SAYS ITS SENSORS. THIS IS BECOMING QUITE A PROBLEM AND NOBODY CAN FIX IT PERMANENTLY. IT IS A SERIOUS SAFTEY ISSUE DUE TO THE FACT THAT I TRANSPORT GRANDCHILDREN AROUND AND THE CAR LOOSES POWER OUT OF NOWHERE,THEN JUST SHUTS DOWN IN THE MIDDLE OF TRAFFIC. I CANT KEEP PAYING ALL THIS MONEY FOR IT TO JUST HAPPEN OVER AND OVER WITH NO RESULTS. WHEN IS THIS GOING TO BE ON THE RECALL LIST? I WENT ONLINE TO FIND OUT THERE ARE ALOT OF OTHER PEOPLE HAVING THE SAME EXACT ISSUE. PLEASE HELP ME? I CANT AFFORD TO KEEP PAYING FOR THIS WHEN ITS NEVER ACTUALLY BEEN FIXED. I HAVE NO PROBLEM PAYING TO HAVE MY CAR FIXED BUT I DO WHEN I HAVE TO PAY OVER AND OVER AGAIN AND ITS STILL NOT FIXED. *TR

NHTSA ODI #10587765

Mileage unknown · Apr 28, 2014
EnginePower Train

TL- CONTACT OWNS A 2008 CHEVEY IMPALA LT. THE FAILURE OCCURED APRIL 2014. THE CONTACT WAS DRIVING AND YOU HIT A POTHOLE. THE CONTACT STATED THAT THEY HAD TO PUT ON HAZARD LIGHTS ON. THE CONTACT BRAKES FAILED AFTER HITTING THE POTHOLE, PREVENTING HER FROM STOPING THE VEHICLE. THE CONTACT STATED THE KEY IGNITION FAILED. THE C…

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TL- CONTACT OWNS A 2008 CHEVEY IMPALA LT. THE FAILURE OCCURED APRIL 2014. THE CONTACT WAS DRIVING AND YOU HIT A POTHOLE. THE CONTACT STATED THAT THEY HAD TO PUT ON HAZARD LIGHTS ON. THE CONTACT BRAKES FAILED AFTER HITTING THE POTHOLE, PREVENTING HER FROM STOPING THE VEHICLE. THE CONTACT STATED THE KEY IGNITION FAILED. THE CURRENT MILLAGE IS 109,000. THE CONTACT CALLED THE MANUFACTURE. THERE WERE NO REPAIRS MADE ON THE VEHICLE.

NHTSA ODI #10585318

61,000 miles · Apr 24, 2014
Engine

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE HE DROVE AT APPROXIMATELY 40 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE FAILURE WAS EXPERIENCED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPROGRAMMED THE COMPUTER BUT THE FAILURE WAS NOT CORRECTED. THE MANUFACTURER WAS NOT MADE AWARE OF …

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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE HE DROVE AT APPROXIMATELY 40 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE FAILURE WAS EXPERIENCED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO THE DEALER WHO REPROGRAMMED THE COMPUTER BUT THE FAILURE WAS NOT CORRECTED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 61,000.

NHTSA ODI #10584605

Mileage unknown · Apr 21, 2014
EnginePower TrainSuspension

2008 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO TRANSMISSION FAILURE. *SMD THE CONSUMER STATED THE VEHICLE WAS PURCHASED IN SEPT 2007, AND IN SEPT 2009, THE TRANSMISSION HAD TO BE REPLACED. THE VEHICLE WAS COVERED UNDER 100% WARRANTY AND SHE WAS GIVEN A RENTAL CAR. THE TRANSMISSION WAS REPLACED A FOR A SECOND TIME, AND L…

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2008 CHEVROLET IMPALA. CONSUMER WRITES IN REGARDS TO TRANSMISSION FAILURE. *SMD THE CONSUMER STATED THE VEHICLE WAS PURCHASED IN SEPT 2007, AND IN SEPT 2009, THE TRANSMISSION HAD TO BE REPLACED. THE VEHICLE WAS COVERED UNDER 100% WARRANTY AND SHE WAS GIVEN A RENTAL CAR. THE TRANSMISSION WAS REPLACED A FOR A SECOND TIME, AND LASTED UNTIL MARCH 2014. THE CONSUMER STATED THE TRANSMISSION WAS REPLACED FOR A 3RD TIME AND IT HASN'T EVEN BEEN 7 YEARS. THE CONSUMER STATED THE VEHICLE WOULD HESITATE FROM A STOP. THE DEALER ALSO STATED THE VEHICLE NEEDED ENGINE MOUNT AND STABILIZER LINKS. *JB

NHTSA ODI #10583794

8,700 miles · Apr 16, 2014
Electrical SystemElectronic Stability Control (esc)Engine

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

NHTSA ODI #10583014

103,000 miles · Apr 8, 2014
EngineSteeringVehicle Speed Control

WHILE DRIVING MESSAGE REDUCED ENGINE POWER IS DISPLAYED ALONG WITH THROTTLE DISABLED MESSAGE, ENGINE SHUTS OFF, MAKING VEHICLE DIFFICULT TO STEER. LEFT MY WIFE STRANDED IN MIDDLE OF ROAD. CAR RESTARTS AFTER APPROX. 15 MIN AND DISPLAYS ORANGE ENGINE LIGHT. TOOK TO WEBBS TEXACO IN LAKELAND, FL AND THEY SAY IT HAS A BAD ECM. PR…

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WHILE DRIVING MESSAGE REDUCED ENGINE POWER IS DISPLAYED ALONG WITH THROTTLE DISABLED MESSAGE, ENGINE SHUTS OFF, MAKING VEHICLE DIFFICULT TO STEER. LEFT MY WIFE STRANDED IN MIDDLE OF ROAD. CAR RESTARTS AFTER APPROX. 15 MIN AND DISPLAYS ORANGE ENGINE LIGHT. TOOK TO WEBBS TEXACO IN LAKELAND, FL AND THEY SAY IT HAS A BAD ECM. PREVIOUSLY SHUT OFF AT 70 MPH ON INTERSTATE. *TR

NHTSA ODI #10578239

128,000 miles · Mar 26, 2014
Electrical SystemEngine

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE EXITING A PARKING LOT, THE VEHICLE SUDDENLY STALLED WITHOUT WARNING. THE STARTER DISABLED, SERVICE THROTTLE AND ENGINE POWER LOW WARNING MESSAGES DISPLAYED ON THE INSTRUMENT PANEL AFTER THE FAILURE. THE VEHICLE WAS RESTARTED AFTER NUMEROUS ATTEMPTS HOWEV…

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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED THAT WHILE EXITING A PARKING LOT, THE VEHICLE SUDDENLY STALLED WITHOUT WARNING. THE STARTER DISABLED, SERVICE THROTTLE AND ENGINE POWER LOW WARNING MESSAGES DISPLAYED ON THE INSTRUMENT PANEL AFTER THE FAILURE. THE VEHICLE WAS RESTARTED AFTER NUMEROUS ATTEMPTS HOWEVER, THE FAILURE PROGRESSED INTO AN INTERMITTENT OCCURRENCE. THE VEHICLE WAS TAKEN TO THE DEALER , WHO STATED THAT THE ENGINE CONTROL MODULE WOULD NEED TO BE REPLACED. THE MANUFACTURE WAS ALERTED ABOUT THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS APPROXIMATELY 128,000. UPDATED 06/27/14*LJ THE CONSUMER STATED THE VEHICLE WAS REPAIRED. AN OCCASIONAL, SPLIT SECOND STALL OR MISSING OUT CAN BE DETECTED. IF IT CONTINUES AFTER THE OIL CHANGE AND TRANSMISSION FLUID CHECK THE CONSUMER WILL REPORT IT TO THE DEALER. UPDATED 07/2/2014 *JS

NHTSA ODI #10574925

111,690 miles · Mar 20, 2014
EnginePower TrainVehicle Speed ControlInjury

WHILE ACCELERATING THE CAR LOST THE ABILITY TO CONTINUE ACCELERATING ALL AT ONCE WHICH CAUSED A JERKING MOTION OF THE CAR CAUSING ME(THE DRIVER) TO BE THROWN FORWARD HITTING MY HEAD ON THE STEERING WHEEL. IT ALL HAPPENED VERY FAST AND THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE APPEARED ON THE DASH BOARD AND IS STILL …

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WHILE ACCELERATING THE CAR LOST THE ABILITY TO CONTINUE ACCELERATING ALL AT ONCE WHICH CAUSED A JERKING MOTION OF THE CAR CAUSING ME(THE DRIVER) TO BE THROWN FORWARD HITTING MY HEAD ON THE STEERING WHEEL. IT ALL HAPPENED VERY FAST AND THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE APPEARED ON THE DASH BOARD AND IS STILL ON THE DASH BOARD. AS I SAID IT ALL HAPPENED VERY FAST BUT I WAS ABLE TO BRACE MYSELF SLIGHTLY WHICH IS THE ONLY REASON I WAS NOT SERIOUSLY INJURED. THIS ISSUE WHICH NOW AFTER SPEAKING TO MY CAR MECHANIC AND ME SEEING MANY OTHER PEOPLE HAVING THE SAME ISSUE AFTER DOING SOME RESEARCH ONLINE IS A DEATH SENTENCE TO SOMEONE. SOMEONE IS GOING TO DIE FROM THE CAR LOSING THE ABILITY TO ACCELERATE ALL AT ONCE ALONG WITH A JERKING MOTION THAT MAKES YOU WANT TO HAVE A FOOT ON THE GAS AND A FOOT ON THE BRAKE TO BE ABLE TO STOP SHOULD THE CAR TAKE OFF ON IT OWN. *TR

NHTSA ODI #10573779

105,521 miles · Mar 10, 2014
Engine

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SUDDENLY DECELERATED TO APPROXIMATELY 5 MPH. THE CONTACT INDICATED THAT THE VEHICLE TRACTION CONTROL AND ENGINE REDUCE POWER WARNING LIGHTS ILLUMINATED PRIOR TO THE VEHICLE DECELERATING. THE CONTACT STATED THAT AFTER …

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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH, THE VEHICLE SUDDENLY DECELERATED TO APPROXIMATELY 5 MPH. THE CONTACT INDICATED THAT THE VEHICLE TRACTION CONTROL AND ENGINE REDUCE POWER WARNING LIGHTS ILLUMINATED PRIOR TO THE VEHICLE DECELERATING. THE CONTACT STATED THAT AFTER TURNING THE ENGINE OFF AND RESTARTING THE VEHICLE OPERATED AS NORMAL. VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 105,521. *TR

NHTSA ODI #10568287

64,500 miles · Mar 8, 2014
EngineTraction Control System

I PURCHASED A CHEVY 08 IMPALA IN LATE JANUARY 2013 WITH LESS THAT 55K MILE ON IT, NOW IT'S BEEN ABOUT A YEAR IT'S AROUND 64K MILE. TODAY ON MY WAY TO WORK, THE TRACTION CONTROL LIGHT AND ENGINE LIGHT ARE ON AND THERE ARE THE MESSAGE OF TRACTION CONTROL IS ON AND ALSO THE ENGINE POWER IS REDUCED. I FELT THE SPEED OF THE CAR RE…

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I PURCHASED A CHEVY 08 IMPALA IN LATE JANUARY 2013 WITH LESS THAT 55K MILE ON IT, NOW IT'S BEEN ABOUT A YEAR IT'S AROUND 64K MILE. TODAY ON MY WAY TO WORK, THE TRACTION CONTROL LIGHT AND ENGINE LIGHT ARE ON AND THERE ARE THE MESSAGE OF TRACTION CONTROL IS ON AND ALSO THE ENGINE POWER IS REDUCED. I FELT THE SPEED OF THE CAR REDUCED, LUCKILY I AM ON LOCAL STREET WITHOUT MANY TRAFFIC. AFTER ABOUT AN HOUR I TRIED TO TESTED IT AGAIN AND ONLY THE ENGINE LIGHT IS ON, THE SPEED OF THE CAR IS NORMAL. I AM NOT FAMILIAR WITH CAR PROBLEMS AND ALSO IT'S MY FIRST TIME TO OWN A CAR. BUT I READ A LOT POSTS ONLINE [XXX] AND FOUND SO MANY PEOPLE EXPERIENCING THE SIMILAR PROBLEMS. THE SAME PROBLEM WOULD LATER HAPPEN IN MY SITUATION. I AM DISAPPOINTED TO LEARN THAT GM HASN'T RESOLVED THIS ISSUE. I HOPE I COULD FIX IT SOON. *TR 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).

NHTSA ODI #10567954

Official recalls

2

14V355000 · 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

1

DP14001 · 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.