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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

Electrical System complaints

221 reports
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92,578 miles · Mar 15, 2013
Electrical SystemElectronic Stability Control (esc)

ON MARCH 14, 2013, WE WERE ACCELERATING FROM A COMPLETE STOP WHEN THE SERVICE ENGINE LIGHT CAME ON AND A MESSAGE APPEARED IN THE MESSAGE CONSOLE THAT READ "ENGINE POWER REDUCED." IT WAS DIFFICULT TO GET THE VEHICLE TO ACCELERATE AT FIRST, BUT IT THEN RESPONDED AFTER A FEW SECONDS. THE 'SERVICE ENGINE" LIGHT STAYED ON. WE TOOK IT…

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ON MARCH 14, 2013, WE WERE ACCELERATING FROM A COMPLETE STOP WHEN THE SERVICE ENGINE LIGHT CAME ON AND A MESSAGE APPEARED IN THE MESSAGE CONSOLE THAT READ "ENGINE POWER REDUCED." IT WAS DIFFICULT TO GET THE VEHICLE TO ACCELERATE AT FIRST, BUT IT THEN RESPONDED AFTER A FEW SECONDS. THE 'SERVICE ENGINE" LIGHT STAYED ON. WE TOOK IT TO AN AUTOMOBILE PARTS STORE SO THEY COULD PULL THE CODE WITH A CODE READER. THE VEHICLE PARTS STORE WAS ABLE TO PULL A CODE READING P2138 WHICH IS FOR THE THROTTLE POSITION SENSOR. LATER ON THAT NIGHT, I WENT ONLINE AND DID SOME RESEARCH AND DISCOVERED THAT THERE ARE MANY OWNERS OF 2008 CHEVY IMPALAS WITH THE SAME PROBLEM. IN THE PAST YEAR, THERE HAVE BEEN SEVERAL OCCASIONS WHEN MY 2008 CHEVY IMPALA TENDS TO BUCKLE AND JERK OR HESITATE WHEN ACCELERATING FROM A COMPLETE STOP MAKING DIFFICULT TO NEARLY IMPOSSIBLE TO NAVIGATE OUT OF THE WAY OF TRAFFIC. IS THERE ANY WAY A RECALL CAN BE ISSUED FOR THE THROTTLE POSITION SENSOR AND THE GAS PEDAL SO THIS ISSUE CAN BE RESOLVE FOR ALL OWNERS OF 2008 CHEVROLET IMPALAS? PLEASE HELP. *TR

NHTSA ODI #10503083

132,678 miles · Mar 12, 2013
Electrical SystemPower Train

GEAR SHIFT STUCK IN PARK POSITION. WOULD NOT SHIFT INTO ANY OTHER POSITION. CHEVROLET MECHANIC FOUND ELECTRICAL PROBLEM AND MADE FOLLOWING COMMENTS ON THE REPAIR ORDER. FOUND THAT SHIFT LOCK CONTROL SOLENOID INOP. FOUND THAT GREEN WIRE MELTED ABOUT 12 INCHES FROM SHIFTER AND ALSO CONNECTOR FOR SHIFT LOCK CONTROL HAD HIGH RES…

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GEAR SHIFT STUCK IN PARK POSITION. WOULD NOT SHIFT INTO ANY OTHER POSITION. CHEVROLET MECHANIC FOUND ELECTRICAL PROBLEM AND MADE FOLLOWING COMMENTS ON THE REPAIR ORDER. FOUND THAT SHIFT LOCK CONTROL SOLENOID INOP. FOUND THAT GREEN WIRE MELTED ABOUT 12 INCHES FROM SHIFTER AND ALSO CONNECTOR FOR SHIFT LOCK CONTROL HAD HIGH RESISTANCE.. REPAIR COMMENTED: REPLACED CONNECTOR AND REPAIRED WIRE WORKING AS DESIGNED AT THIS TIME. MECHANIC STATED THAT THIS WAS NOT UNCOMMON. ALSO FOUND NUMEROUS INTERNET FORUM COMMENTS ABOUT THIS PROBLEM.. VERY SERIOUS FIRE HAZARD. GM SEEMS TO BE AWARE SINCE ABOVE REPAIR IMPLIES A REWORKING DESIGN OF WIRE WORKING.: EVIDENCE OF BURNED WIRE INSIDE A VEHICLE SHOULD BE CONSIDERED A SERIOUS FIRE HAZARD. *TR

NHTSA ODI #10502537

62,000 miles · Mar 12, 2013
Electrical SystemLatches/locks/linkages

2008 CHEVY IMPALA. RIGHT REAR DOOR LOCK BEGAN WORKING INTERMITTENTLY. RIGHT FRONT FOLLOWED SUIT SHORTLY AFTERWARDS. NOW, SOME 5 MONTHS LATER, THE DRIVER DOOR IS BEHAVING THE SAME WAY. IT MAKES TRANSPORTING MY CHILDREN DIFFICULT AND UNSAFE. IF THERE WERE TO BE AN ACCIDENT, THE CHILDREN IN THE BACK SEAT ARE NOT LIKELY TO HAVE…

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2008 CHEVY IMPALA. RIGHT REAR DOOR LOCK BEGAN WORKING INTERMITTENTLY. RIGHT FRONT FOLLOWED SUIT SHORTLY AFTERWARDS. NOW, SOME 5 MONTHS LATER, THE DRIVER DOOR IS BEHAVING THE SAME WAY. IT MAKES TRANSPORTING MY CHILDREN DIFFICULT AND UNSAFE. IF THERE WERE TO BE AN ACCIDENT, THE CHILDREN IN THE BACK SEAT ARE NOT LIKELY TO HAVE THE MENTAL CAPACITY TO REMEMBER TO UNLOCK THE DOOR WHICH COULD LEAD TO FURTHER INJURY OR DEATH. WIRING HARNESS IN THE CENTER CONSOLE IS POORLY DESIGNED AND LOCATED IN SUCH A WAY THAT THE WIRING BREAKS AND MAKING IT SO ELECTRICAL SAFETY DEVICES DO NOT DISENGAGE THUS NOT LETTING THE KEY BE REMOVED, THE VEHICLE NOT BEING ABLE TO SHIFT FROM PARK, AND OTHER FAILURES YET TO BE IDENTIFIED. *TR

NHTSA ODI #10502487

150,000 miles · Mar 11, 2013
Electrical SystemPower TrainSteering

I WAS DRIVING ON THE HIGHWAY LEADING INTO AN OVERPASS. AS L ENTERED ONTO THE OVERPASS MY SERVICE TRACTION CONTROL, ENGINE POWER REDUCED, AND SERVICE THROTTLE BODY DISABLED FLASH ACROSS MY DASH BOARD, KILLING THE POWER TO MY VEHICLE AND LOCKING MY STEERING WHEEL. WHILE I WAS STOPPED UNABLE TO MOVE MY VEHICLE, CARS FLEW ME AND I W…

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I WAS DRIVING ON THE HIGHWAY LEADING INTO AN OVERPASS. AS L ENTERED ONTO THE OVERPASS MY SERVICE TRACTION CONTROL, ENGINE POWER REDUCED, AND SERVICE THROTTLE BODY DISABLED FLASH ACROSS MY DASH BOARD, KILLING THE POWER TO MY VEHICLE AND LOCKING MY STEERING WHEEL. WHILE I WAS STOPPED UNABLE TO MOVE MY VEHICLE, CARS FLEW ME AND I WAS ALMOST HIT. AT ONE POINT ANOTHER VEHICLE WAS ALMOST RAN OFF THE ROAD DUE TO ONCOMING TRAFFIC TRYING TO DODGE ME. THIS WAS THE WORST EXPERIENCE OF MY LIFE. I HAVE NEVER FEARED FOR MY LIFE LIKE I DID AT THIS TIME. AFTER DOING MY RESEARCH ONLINE, I HAVE FOUND MANY OTHERS HAVE BEEN IN MY SITUATION. I WAS TOLD THAT MY ACCELERATOR PEDAL SENSOR HAS GONE BAD. I FEEL THAT GM SHOULD BE HELD RESPONSIBLE AND NEEDS TO REMEDY THE SITUATION BEFORE SOMEONE IS KILLED. *TR

NHTSA ODI #10502421

90,000 miles · Feb 4, 2013
Electrical SystemSteering

KEY GETS STUCK IN IGNITION AND WILL NOT TURN TO LOCK POSITION. THE BATTERY RUNS DOWN AFTER SITTING FOR AWHILE. I "GOOGLED" COMPLAINTS OF THIS HAPPENING AND THERE WERE HUNDREDS OF COMPLAINTS. THE PROBLEM LIES IN THE CENTER CONSOLE OF AUTOMATIC TRANSMISSION CARS. CHEVROLET DESIGNED THE WIRING HARNESS TO DRAG ACROSS THE FLOOR W…

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KEY GETS STUCK IN IGNITION AND WILL NOT TURN TO LOCK POSITION. THE BATTERY RUNS DOWN AFTER SITTING FOR AWHILE. I "GOOGLED" COMPLAINTS OF THIS HAPPENING AND THERE WERE HUNDREDS OF COMPLAINTS. THE PROBLEM LIES IN THE CENTER CONSOLE OF AUTOMATIC TRANSMISSION CARS. CHEVROLET DESIGNED THE WIRING HARNESS TO DRAG ACROSS THE FLOOR WHILE MOVING THE SHIFTER LEVER FROM GEAR TO GEAR. THIS EVENTUALLY CAUSES THE WIRES TO BREAK. DEPENDING ON WHICH OF THE FIVE WIRES BREAK CAUSES PROBLEMS WITH THE IGNITION SWITCH (CAR WON'T START, TRANSMISSION WON'T SHIFT, STEERING WHEEL WON'T LOCK, KEY WON'T COME OUT ARE SOME OF THE PROBLEMS). AS I STATED THERE ARE HUNDREDS OF COMPLAINTS AND FEEL TO ISSUE A RECALL BY CHEVROLET WOULD BE INLINE. *TR

NHTSA ODI #10496342

Mileage unknown · Feb 2, 2013
Electrical SystemLatches/locks/linkagesSuspension

WE ARE GETTING READY TO HAVE TO REPLACE OUR THIRD SET OF TIRES. WE BOUGHT OUR IMPALA NEW AND REPLACED OUR FIRST SET OF TIRES AT FEB. 2010 (38,000 MILES). REPLACED AGAIN AT 54,000 MILES DEC. 2011. REPLACED AGAIN AT 65,000 NOV. OF 2012 AND IT IS IN NEED OT NEW REAR TIRES AGAIN AT 72,000. CAR SHAKES AND BACK END SLIDES IN BAD W…

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WE ARE GETTING READY TO HAVE TO REPLACE OUR THIRD SET OF TIRES. WE BOUGHT OUR IMPALA NEW AND REPLACED OUR FIRST SET OF TIRES AT FEB. 2010 (38,000 MILES). REPLACED AGAIN AT 54,000 MILES DEC. 2011. REPLACED AGAIN AT 65,000 NOV. OF 2012 AND IT IS IN NEED OT NEW REAR TIRES AGAIN AT 72,000. CAR SHAKES AND BACK END SLIDES IN BAD WEATHER. SERVICE DEPARTMENT STATES THAT IT NEEDS A CAMBOR KIT. RESEARCH HAS SHOWN THAT CHEVROLET PRODUCED A FAULTY SUSPENSION ROD AND RECALLED "POLICE OWNED" VEHICLES BUT NOT CONSUMER VEHICLES. DO NOT FEEL SAFE IN VEHICLE OR ALLOWING MY 16 YEAR OLD TO DRIVE IT. MY CAR IS ALIGNED AND TIRES ROTATED AND SERVICED FREQUENTLY! TIRES WEAR DOWN TO METAL STICKING OUT OF TIRES AND INNER WEAR IS INCREDIBLE. LEFT TIRE BEHIND THE DRIVER IS THE QUICKEST TO HAVE PROBLEMS AND BEGIN TO CAUSE CAR TO SHAKE. SECONDLY, REAR DOOR AUTOMATIC DOOR LOCKS QUITE WORKING AFTER 2 YEARS OF OWNING CAR. HOW DO I BECOME PART OF THE CLASS ACTION LAW SUIT. *TR

NHTSA ODI #10496162

148,000 miles · Feb 1, 2013
Electrical SystemElectronic Stability Control (esc)Engine

I WAS STARTING THE CAR UP AND THE ENGINE WAS GOING IN AND OUT. I NOTICED THAT THE CHECK ENGINE LIGHT WAS ON AND IT STAYED ON. THE STABILI-TRAC LIGHT ALSO CAME ON. THE PANEL ALSO SAID THAT THE ENGINE WAS LOSING POWER. THIS HAPPENED 2 TIMES WITHIN THE LAST 8 DAYS. I STOPPED THE VEHICLE AND TURNED IT OFF. CRANKED IT BACK UP AND THE…

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I WAS STARTING THE CAR UP AND THE ENGINE WAS GOING IN AND OUT. I NOTICED THAT THE CHECK ENGINE LIGHT WAS ON AND IT STAYED ON. THE STABILI-TRAC LIGHT ALSO CAME ON. THE PANEL ALSO SAID THAT THE ENGINE WAS LOSING POWER. THIS HAPPENED 2 TIMES WITHIN THE LAST 8 DAYS. I STOPPED THE VEHICLE AND TURNED IT OFF. CRANKED IT BACK UP AND THE CHECK ENGINE LIGHT WAS STILL ON. TOOK IT TO THE CAR DEALER AND THEY SAID THAT IT WAS THE THROTTLE POSITION SENSOR. *TR

NHTSA ODI #10496107

Mileage unknown · Nov 17, 2012
Electrical SystemStructure

NOISE IS BEING MADE SOUNDS LIKE IN THE DASHBOARD. *TR

NHTSA ODI #10485009

55,000 miles · Nov 9, 2012
Electrical System

I PURCHASED MY '08 IMPALA LT USED, VEHICLE WAS IN PERFECT CONDITION, OLDER OWNER AND WAS A SEASONAL VEHICLE AS WE LIVE IN SOUTH FLORIDA THIS OWNER WAS A SNOW BIRD AND ONLY USED THE VEHICLE 4 MONTHS OUT OF THE YEAR. I HAD THE CAR ABOUT 7 MONTHS AND THEN I NOTICED A PROBLEM WITH THE LOCKS, THEY WOULD SOMETIMES NOT LOCK/OR UNLOCK …

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I PURCHASED MY '08 IMPALA LT USED, VEHICLE WAS IN PERFECT CONDITION, OLDER OWNER AND WAS A SEASONAL VEHICLE AS WE LIVE IN SOUTH FLORIDA THIS OWNER WAS A SNOW BIRD AND ONLY USED THE VEHICLE 4 MONTHS OUT OF THE YEAR. I HAD THE CAR ABOUT 7 MONTHS AND THEN I NOTICED A PROBLEM WITH THE LOCKS, THEY WOULD SOMETIMES NOT LOCK/OR UNLOCK WHILE USING THE FOB, THE INTERIOR LOCK STILL WORKED FOR A FEW MORE MONTHS AND THEN EVERYTHING EVENTUALLY CEASED. NOW NOTHING WORKS, UNLESS YOU MANUALLY LOCK/UNLOCK IT YOURSELF. PROBLEM IS.....I HAVE CHILDREN, SMALL CHILDREN AND WHEN DOING 8 OTHER THINGS WHILE GETTING OUT OF THE CAR, OR PARKING THE CAR AND GETTING OUT IT IS SUCH A PAIN IN THE A** THAT I HAVE TO GO THROUGH THIS WITH A SOMEWHAT NEWER VEHICLE!!! I TRIED REPLACING THE FUSE, THAT DIDN'T WORK. I CAN HEAR THE LOCKS CLICK, BUT NOTHING HAPPENS. WELL.....I HAD SOME WORK DONE TO THE VEHICLE, NEW TIRES AND AN ALIGNMENT AND HAD THEM LOOK INTO IT FURTHER, THEY DID AND TOLD ME THE ACTUATORS NEED TO BE REPLACED, $1200!!! I ALMOST PASSED OUT RIGHT THERE!! FOR SOMETHING THAT WAS NOT THE DIRECT CAUSE BY ME HOW IRRESPONSIBLE OF CHEVROLET TO ALLOW THESE PARTS TO GO BAD, I DID A GREAT AMOUNT OF RESEARCH AND FOUND THIS PROBLEM WITH QUITE A FEW OWNERS OF THIS VERY SAME VEHICLE, THIS AND THE AIR FLOW THING THAT MAKES A HORRIBLE NOISE, LIKE BANGING!!! THAT WILL BE MY NEXT COMPLAINT!! I FOUND THAT APPARENTLY, THE GREASE FROM ONE OF THE COMPONENTS THAT IS NEXT TO ACTUATOR IS EATING AWAY AT THE PART CAUSING IT TO DEFAULT!! CHEVY NEEDS TO HAVE THIS RECALLED, ASAP!!! PEOPLE WITH SMALL CHILDREN, WHO KEEP THEM IN THE BACK SEAT COULD HAVE SOME SERIOUS PROBLEMS IF THEY ARE UNABLE TO GET TO THEIR KIDS.....ESPECIALLY SINCE THE LOCKS ARE ALL THE WAY TOWARDS THE REAR OF THE DOOR YOU CANT EVEN REACH IT FROM THE FRONT SEAT. THIS IS SUPPOSED TO ME CONSIDERED A FULL SIZE SEDAN, A FAMILY CAR!!! *TR

NHTSA ODI #10483815

Mileage unknown · Oct 17, 2012
Electrical SystemLatches/locks/linkages

THE LEFT REAR DOOR ACTUATOR FAILED AND THE REMOTE OPENER AND THE DRIVER'S AND PASSENGER'S ELECTRIC LOCKS WOULD NOT OPEN OR LOCK THE LEFT REAR DOOR FROM THE INSIDE. I WAS ADVISED BY LOCAL GM DEALER THAT THIS PROBLEM DOES NOT CONSTITUTE A SAFETY RECALL, EVEN THOUGH IT INVOLVED PASSENGERS WHO WOULD BE RIDING IN THE BACK SEAT OF THE…

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THE LEFT REAR DOOR ACTUATOR FAILED AND THE REMOTE OPENER AND THE DRIVER'S AND PASSENGER'S ELECTRIC LOCKS WOULD NOT OPEN OR LOCK THE LEFT REAR DOOR FROM THE INSIDE. I WAS ADVISED BY LOCAL GM DEALER THAT THIS PROBLEM DOES NOT CONSTITUTE A SAFETY RECALL, EVEN THOUGH IT INVOLVED PASSENGERS WHO WOULD BE RIDING IN THE BACK SEAT OF THE VEHICLE. *TR

NHTSA ODI #10480855

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.