← New search

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 →

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

Vehicle Speed Control complaints

92 reports
Clear category filter
135,007 miles · Jun 23, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control

ON JUNE 22, 2012 AS I WAS DRIVING APPROXIMATELY 40 MPH, THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE POPPED UP ON THE DASH. I KNOW MY CAR SLOWED DOWN A LOT AND THEN PICKED UP SPEED AGAIN. I NOTICE THAT EACH TIME I PRESSED ON THE PETAL TO STOP AT A LIGHT OR STOP SIGN THE CAR WOULD JERK FORWARD. I DID NOT THINK TOO MUCH O…

Read full complaint

ON JUNE 22, 2012 AS I WAS DRIVING APPROXIMATELY 40 MPH, THE REDUCED ENGINE POWER AND TRACTION CONTROL MESSAGE POPPED UP ON THE DASH. I KNOW MY CAR SLOWED DOWN A LOT AND THEN PICKED UP SPEED AGAIN. I NOTICE THAT EACH TIME I PRESSED ON THE PETAL TO STOP AT A LIGHT OR STOP SIGN THE CAR WOULD JERK FORWARD. I DID NOT THINK TOO MUCH OF IT UNTIL MY HUSBAND THEN DROVE IT AND SAID THE SAME THING HAPPENED TO HIM AND THE CAR WAS DRIVING REALLY ROUGH. I DID SOME RESEARCH AND SEE THAT LOTS OF CHEVY OWNERS HAVE BEEN EXPERIENCING THE SAME PROBLEM. PLEASE ENFORCE A RECALL AS THIS IS NOT SAFE ESPECIALLY WHEN YOU ARE DRIVING ON A FREEWAY. *TR

NHTSA ODI #10521299

157,991 miles · Jun 18, 2013
EngineVehicle Speed Control

AS I WAS DRIVING, ALL OF A SUDDEN THE SERVICE TRACTION CONTROL LIGHT CAME ON AND THEN ENGINE POWER REDUCED LIGHT CAME ON. THIS CAUSED MY CAR TO SLOW DOWN WITHOUT WARNING WHICH COULD HAVE BEEN A DANGEROUS SITUATION HAD I BEEN ON A BUSY HIGHWAY WHICH FORTUNATELY I WASN'T. I READ UP ON THIS AND NOTICED THAT THIS IS HAPPENING QUITE …

Read full complaint

AS I WAS DRIVING, ALL OF A SUDDEN THE SERVICE TRACTION CONTROL LIGHT CAME ON AND THEN ENGINE POWER REDUCED LIGHT CAME ON. THIS CAUSED MY CAR TO SLOW DOWN WITHOUT WARNING WHICH COULD HAVE BEEN A DANGEROUS SITUATION HAD I BEEN ON A BUSY HIGHWAY WHICH FORTUNATELY I WASN'T. I READ UP ON THIS AND NOTICED THAT THIS IS HAPPENING QUITE OFTEN AND THIS SHOULD REALLY BE REMEDIED BEFORE AN UNFORTUNATE DEATH OR INJURY OCCURS FROM THIS. *TR

NHTSA ODI #10520470

60,000 miles · Jun 18, 2013
EngineVehicle Speed Control

I HAVE A 2008 CHEVY IMPALA. STARTING LAST MONTH (MAY 2013) THE SERVICE TRACTION LIGHT AND REDUCE ENGINE POWER LIGHTS STARTED COMING ON. I TOOK IT BACK TO THE PLACE WHERE I PURCHASED THE VEHICLE AND IT CAME BACK THAT IT WAS THE ACCELERATOR PEDAL. IT WAS REPLACED AND 5 DAYS LATER THE LIGHTS WERE BACK ON AGAIN. I CALLED THE SHOP AN…

Read full complaint

I HAVE A 2008 CHEVY IMPALA. STARTING LAST MONTH (MAY 2013) THE SERVICE TRACTION LIGHT AND REDUCE ENGINE POWER LIGHTS STARTED COMING ON. I TOOK IT BACK TO THE PLACE WHERE I PURCHASED THE VEHICLE AND IT CAME BACK THAT IT WAS THE ACCELERATOR PEDAL. IT WAS REPLACED AND 5 DAYS LATER THE LIGHTS WERE BACK ON AGAIN. I CALLED THE SHOP AND THEY TOLD ME TO BRING IT BACK TO THEM ON MONDAY BECAUSE THEY WERE CLOSED SATURDAY AND SUNDAY. I TOOK THE CAR BACK TO THE SHOP AND THE LIGHTS WEREN'T ON. THEY TOLD ME THAT THEY COULD NOT GET A READING ON THE CAR AND TO COME PICK IT UP. I DROVE OFF THE LOT AND 3 DAYS LATER THE LIGHTS WERE BACK ON. THIS HAS HAPPENED EVERY WEEK SINCE THEY REPLACED THE ACCELERATOR PEDAL. WHEN I TOOK IT IN INITIALLY THEY SAID IT WAS EITHER THE ACCELERATOR PEDAL OR THE THROTTLE. ON FRIDAY JUNE 14TH THE CAR STOPPED THE SERVICE TRACTION SYSTEM LIGHT, REDUCED ENGINE POWER LIGHT AND STARTING DISABLED SERVICE/CHECK THROTTLE LIGHT CAME ON AND THE CAR STOPPED. IT WAS STILL RUNNING BUT WHEN I PRESSED THE ACCELERATOR PEDAL IT WOULD NOT MOVE. I CUT IT OFF AND SAT FOR ABOUT 10 MINUTES. I STARTED IT AND DROVE STRAIGHT TO THE LOT IT WAS FRIDAY AT 4:45 PM THEY CLOSED AT 5:00 THE GUY SAID BRING IT BACK MONDAY (WOW REALLY). I PARKED THE CAR AGAIN ALL WEEKEND DIDN'T START IT UNTIL MONDAY. THE LIGHTS WERE OFF WHEN I GOT IN IT ON MONDAY AS SOON AS I BACKED OUT OF MY DRIVE WAY THE LIGHTS POPPED BACK ON AND IT WOULD ONLY GO 40 MPH. LUCKILY THE PLACE IS ABOUT 3 MILES FROM MY HOUSE WHEN I GOT THERE THEY WEREN'T OPEN YET SO I SAT THERE. WHEN THEY FINALLY OPENED I DROVE IN AND TOLD THE GUY WHO I WAS. THE DROVE THE CAR AROUND SEVERAL TIMES AND COULD NOT GET THE LIGHTS TO COME BACK ON. IT IS NOW TUESDAY AND I STILL DON'T HAVE MY CAR BACK. THEY SAY THAT THEY TOOK IT TO THE DEALERSHIP TO HAVE THEM LOOK AT IT. I'M NOT SURE WHAT TO DO AT THIS POINT I NEED MY CAR TO GET BACK AND FORTH TO WORK. *TR

NHTSA ODI #10520429

180,000 miles · Jun 12, 2013
Traction Control SystemVehicle Speed Control

TRACTION CONTROL LOSS OF POWER WHILE DRIVING WARNING LIGHTS. *TR

NHTSA ODI #10519489

48,000 miles · May 30, 2013
Vehicle Speed Control

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH, THE ENGINE POWER REDUCED RAPIDLY. THERE WERE A COMBINATION OF TWO WARNING MESSAGES DISPLAYED ON THE INSTRUMENT PANEL INDICATING ENGINE POWER REDUCTION AND THROTTLE PICKTAL. THE VEHICLE WAS MANEUVERED TO THE SIDE OF THE ROAD WHERE…

Read full complaint

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 65 MPH, THE ENGINE POWER REDUCED RAPIDLY. THERE WERE A COMBINATION OF TWO WARNING MESSAGES DISPLAYED ON THE INSTRUMENT PANEL INDICATING ENGINE POWER REDUCTION AND THROTTLE PICKTAL. THE VEHICLE WAS MANEUVERED TO THE SIDE OF THE ROAD WHERE THE ENGINE WAS TURNED OFF. UPON RESTARTING THE VEHICLE RESUMED AS NORMAL. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE THROTTLE PICKTAL WAS REPLACED. THE FAILURE RECURRED THREE TIMES AND THE VEHICLE WAS CURRENTLY BEING DIAGNOSED. THE MANUFACTURER WAS NOTIFIED OF THE PROBLEM. THE APPROXIMATE FAILURE MILEAGE WAS 48,000.

NHTSA ODI #10514198

71,500 miles · May 29, 2013
EnginePower TrainVehicle Speed Control

ON 4/28/13, WHILE TURNING INTO CHURCH PARKING LOT, TRACTION CONTROL AND CHECK ENGINE LIGHTS CAME ON. COMPUTER CHECK THE NEXT DAY SHOWED CODE 2127. THE COMPUTER WAS CLEARED AND THIS PROBLEM CODE DID NOT REAPPEAR. ON 5/28/13, WHILE DRIVING ON A FLAT COUNTRY ROAD AT ABOUT 50 MPH, TRACTION CONTROL AND CHECK ENGINE LIGHTS AGAIN …

Read full complaint

ON 4/28/13, WHILE TURNING INTO CHURCH PARKING LOT, TRACTION CONTROL AND CHECK ENGINE LIGHTS CAME ON. COMPUTER CHECK THE NEXT DAY SHOWED CODE 2127. THE COMPUTER WAS CLEARED AND THIS PROBLEM CODE DID NOT REAPPEAR. ON 5/28/13, WHILE DRIVING ON A FLAT COUNTRY ROAD AT ABOUT 50 MPH, TRACTION CONTROL AND CHECK ENGINE LIGHTS AGAIN CAME ON. I HAD TO DRIVE APPROX. 20 MILES TO GET BACK TO MY MECHANIC. PART OF THE COMPUTER RESPONSE DURING THE THIS TIME WAS TO REDUCE ENGINE POWER. THIS WAS NOTICEABLE ON ANY MINOR HILL. AGAIN, MY MECHANIC CHECKED THE COMPUTER DIAGNOSTIC AND SAID CODE 2127. I TOOK MY CAR TO MY DEALER 5/29/13 AND THEY REPLACED THE ACCELERATOR PEDAL ASSEMBLY. *TR

NHTSA ODI #10514023

95,000 miles · May 28, 2013
Electrical SystemElectronic Stability Control (esc)Vehicle Speed Control

I CURRENTLY DRIVE A 2008 CHEVY IMPALA, I'VE ONLY HAD THE CAR 1 1/2 AND NOT EVEN A YEAR AFTER I PURCHASED IT, I START EXPERIENCING THE (TCS) TRACTION CONTROL SENSOR - WHICH ALTERNATIVELY REDUCE THE SPEED OF THE ENGINE; IT HAPPENS SPORADICALLY,... I TOOK IT TO AUTO ZONE TO HAVE A DIAGNOSTIC PERFORMED ON THE CAR, AND THEY READER S…

Read full complaint

I CURRENTLY DRIVE A 2008 CHEVY IMPALA, I'VE ONLY HAD THE CAR 1 1/2 AND NOT EVEN A YEAR AFTER I PURCHASED IT, I START EXPERIENCING THE (TCS) TRACTION CONTROL SENSOR - WHICH ALTERNATIVELY REDUCE THE SPEED OF THE ENGINE; IT HAPPENS SPORADICALLY,... I TOOK IT TO AUTO ZONE TO HAVE A DIAGNOSTIC PERFORMED ON THE CAR, AND THEY READER SAID IT WAS DUE TO A CYLINDER 5 MISFIRE.... MY CAR IS A 6 CYLINDER, IT IS DANGEROUS WHEN DRIVING ON THE HIGHWAY AS WHEN THE (TCS) DOES COME ON' THE REDUCE ENGINE SPEED IS WELL UNDER THE HIGHWAY SPEED LIMIT. OTHER CONCERNS THAT ARISE IS THAT SENSE THIS SENSOR HAS BEEN OWN, IT' HAS ACCUMULATED OTHER SENSORS' (ABS) (!) AND THE THROTTLE PEDAL SENSOR. I HAVE REACHED OUT TO THE GM TO SEE IF THERE WAS ANY RECALL ON THIS, AND WAS ADVISE THAT NOTHING HAS BEEN DONE. I THINK THIS IS A HUGE DANGER, AS THIS IS A COMMONLY USED CAR IN THE U.S & IF THERE HAS BEEN SEVERAL COMPLAINTS THUS FAR OVER THE SAME ISSUE, WHY HASN'T ANYTHING BEEN DONE TO RESOLVE THE ISSUE? WHAT IF YOU'VE WORKED HARD TO DRIVE THE VEHICLE YOU WANT;& HAVE TO PAY OUT OF COST; OTHER THAN BASIC MAINTENANCE? *TR

NHTSA ODI #10513900

44,929 miles · May 27, 2013
Vehicle Speed Control

THE CAR HAD BEEN LEAPING FORWARD WHEN YOU WOULD DEPRESS THE ACCELERATOR PEDAL AT A STOP LIGHT OR STOP SIGN. I WAS DRIVING DOWN THE STREET AND THE WORD ENGINE POWER REDUCED APPEARED ALONG WITH THE CHECK ENGINE LIGHT AND SEVERAL DAYS LATER THE CHECK ENGINE LITE WENT OUT. RESEARCHED THE NHTSA WEBSITE AND INTERNET AND FOUND THAT SEV…

Read full complaint

THE CAR HAD BEEN LEAPING FORWARD WHEN YOU WOULD DEPRESS THE ACCELERATOR PEDAL AT A STOP LIGHT OR STOP SIGN. I WAS DRIVING DOWN THE STREET AND THE WORD ENGINE POWER REDUCED APPEARED ALONG WITH THE CHECK ENGINE LIGHT AND SEVERAL DAYS LATER THE CHECK ENGINE LITE WENT OUT. RESEARCHED THE NHTSA WEBSITE AND INTERNET AND FOUND THAT SEVERAL COMPLAINTS HAD BEEN LOGGED ALONG WITH SEVERAL SERVICE BULLETINS. I CALLED THE CHEVY DEALERSHIP WHERE THE CAR HAD BEEN PURCHASED AND WAS TOLD TO BRING THE VEHICLE IN FOR SERVICE. AFTER ARRIVING AT THE DEALERSHIP ON SATURDAY MAY 25TH AND STATING THE SERVICE BULLETIN NUMBER. THE DEALERSHIP TOLD ME THAT THEIR ARE MANY BULLETINS OUT THERE. HOWEVER THE DEALERSHIP WAS PROVIDED A NUMBER BUT FAILED TO LOOKUP THE BULLETIN. THE ISSUE WAS A FAILED CODE P2138 SET. DUE TO A FAULTY ACCELERATOR POSITION SENSOR. REPLACED PEDAL. THE FIRST PRICE QUOTED WAS LESS THAN $200.00 AND THE TOTAL BILL WAS $280.77. AN ACCELERATOR PEDAL IS A PART THAT IS DESIGNED BY THE MAKERS OF AN AUTOMOBILE THAT SHOULD NOT BE FAULTY, HOW COULD AN OWNER CAUSE AN ACCELERATOR PEDAL TO BE FAULTY OR BAD. THIS NEEDS TO BE A NATIONAL INVESTIGATION. *TR

NHTSA ODI #10513650

41,000 miles · May 23, 2013
Vehicle Speed Control

2008 IMPALA SS: OFTEN WHEN I TRY TO ACCELERATE FROM A STOP THE CAR FEELS SLUGGISH AND DOES NOT ACCELERATE. I TALKED TO A MECHANIC AND THIS IS A COMMON DEFECT WITH THESE VEHICLES. I FIGURED BY NOW THERE WOULD HAVE BEEN A RECALL SINCE THIS IS SO COMMON, BUT I SUPPOSE THERE HAVE TO FATALITIES AND LAWSUITS IN ORDER FOR THE MANUFACTU…

Read full complaint

2008 IMPALA SS: OFTEN WHEN I TRY TO ACCELERATE FROM A STOP THE CAR FEELS SLUGGISH AND DOES NOT ACCELERATE. I TALKED TO A MECHANIC AND THIS IS A COMMON DEFECT WITH THESE VEHICLES. I FIGURED BY NOW THERE WOULD HAVE BEEN A RECALL SINCE THIS IS SO COMMON, BUT I SUPPOSE THERE HAVE TO FATALITIES AND LAWSUITS IN ORDER FOR THE MANUFACTURE TO STEP IN. *TR

NHTSA ODI #10513293

99,320 miles · May 20, 2013
EngineVehicle Speed Control

ON FRIDAY 5/17/2013 I WAS DRIVING HOME FROM WORK AS I USUALLY DO AND I MADE A STOP AT A RED LIGHT. WHEN THE LIGHT TURNED GREEN AND I STEPPED ON THE GAS TO DRIVE, I FELT THE CAR JERK AND THEN THE ENGINE LIGHT CAME ON AND A MESSAGE POPPED UP AND SAID ENGINE POWER REDUCED. THE CAR STRUGGLED TO ACCELERATE OFTEN FEELING LIKE IT WAS G…

Read full complaint

ON FRIDAY 5/17/2013 I WAS DRIVING HOME FROM WORK AS I USUALLY DO AND I MADE A STOP AT A RED LIGHT. WHEN THE LIGHT TURNED GREEN AND I STEPPED ON THE GAS TO DRIVE, I FELT THE CAR JERK AND THEN THE ENGINE LIGHT CAME ON AND A MESSAGE POPPED UP AND SAID ENGINE POWER REDUCED. THE CAR STRUGGLED TO ACCELERATE OFTEN FEELING LIKE IT WAS GOING TO CUT OFF. I WAS ABLE TO MAKE IT TO A PARKING LOT WHERE I FELT SAFE IN SEE THE CAR BROKE DOWN AND I TURNED THE CAR OFF AN SAT THERE FOR ABOUT 10 MIN AND RESTARTED THE CAR. I WAS ABLE TO MAKE IT HOME BY TAKING THE HIGHWAY SINCE THAT IS THE ONLY WAY I CAN MAKE IT HOME. WHEN I GOT HOME THE LIGHT TURNED OFF AND I DROVE THE CAR AGAIN AND IT APPEARS TO BE DRIVING NORMAL. THEN AGAIN TODAY 5/19/2013, THE SAME THING HAPPENED BUT THIS TIME THE ENGINE LIGHT DID NOT SHUT OFF. I HAVE NO CHOICE BUT TO TAKE THE HIGHWAY HOME AND THE CAR WAS VERY DANGEROUS TO DRIVE BECAUSE IT DOES NOT ACCELERATE THE WAY IT SHOULD. HIS POSES AS A DANGER TO MY LIFE AS WELL AS OTHERS. AFTER FURTHER RESEARCH ONLINE I DISCOVERS THAT MANY PEOPLE WITH CHEVY IMPALAS HAVE REPORTED AND COMPLAINED OUT THE SAME ISSUE THAT IT CAN POSSIBLY BE A SENSOR IN THE GAS PEDAL WHICH APPARENTLY ISN'T COVERED UNDER THE WARRANTY AND ITS COSTLY CONSUMERS HUNDREDS OF DOLLARS TO CORRECT. THIS VEHICLE DEFINITELY NEEDS TO BE RECALLED AS IT IS A SAFETY THREAT. *TR

NHTSA ODI #10512755

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.