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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

Vehicle Speed Control complaints

92 reports
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71,009 miles · May 14, 2013
Electronic Stability Control (esc)StructureVehicle Speed Control

I HAVE READ MANY OTHER COMPLAINTS SIMILAR TO MINE . I WAS DRIVING YESTERDAY AND THE "SERVICE STABILITRAK, SERVICE TRACTION CONTROL" WARNINGS CAME ON. AFTER A FEW MINUTES "ENGINE POWER REDUCED" WARNING CAME ON AND THE CAR WOULD NOT RUN OVER 50 MPH. THIS IS ON A 2008 CHEVROLET IMPALA. I WAS DRIVING 45 MPH AND WHEN THE LIGHTS COME …

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I HAVE READ MANY OTHER COMPLAINTS SIMILAR TO MINE . I WAS DRIVING YESTERDAY AND THE "SERVICE STABILITRAK, SERVICE TRACTION CONTROL" WARNINGS CAME ON. AFTER A FEW MINUTES "ENGINE POWER REDUCED" WARNING CAME ON AND THE CAR WOULD NOT RUN OVER 50 MPH. THIS IS ON A 2008 CHEVROLET IMPALA. I WAS DRIVING 45 MPH AND WHEN THE LIGHTS COME ON ,THEY JUST AS QUICKLY TURN OFF AND ON AGAIN. THE CAR SHOOK AND THE THROTTLE WAS A BIT OFF. IT WAS VERY SCARY TO DRIVE, ESPECIALLY SINCE THIS HAPPENED AT NIGHT AND IT IS NOT THE FIRST INCIDENT.AS OF TODAY, THIS IS THE 5TH TIME I HAVE DEALT WITH "REDUCED ENGINE POWER"/"SERVICE STABILITRAK". SUCH A SAFETY ISSUE. INSTEAD OF BEING SCARED OF GETTING INTO AN ACCIDENT, I'M FEARFUL I WILL BE THE ONE CAUSING THE PILE UP. *TR

NHTSA ODI #10511828

45,000 miles · Apr 9, 2013
Vehicle Speed Control

I WAS DRIVING AND TRYING TO PASS A SLOWER VEHICLE WHEN MY CHECK ENGINE LIGHT CAME ON AND SAID "ENGINE POWER REDUCED" I HAVE A 2008 CHEVY IMPALE WITH 45000 MILES, I TOOK IT TO THE CHEVY DEALER IN INDIANAPOLIS AND WAS TOLD IN FACT IT WAS THE GAS PEDAL AND WAS NOT COVERED UNDER THE POWER-TRAIN WARRANTY...THEY ALSO CHARGED ME $90 TO…

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I WAS DRIVING AND TRYING TO PASS A SLOWER VEHICLE WHEN MY CHECK ENGINE LIGHT CAME ON AND SAID "ENGINE POWER REDUCED" I HAVE A 2008 CHEVY IMPALE WITH 45000 MILES, I TOOK IT TO THE CHEVY DEALER IN INDIANAPOLIS AND WAS TOLD IN FACT IT WAS THE GAS PEDAL AND WAS NOT COVERED UNDER THE POWER-TRAIN WARRANTY...THEY ALSO CHARGED ME $90 TO CHECK THE PROBLEM AND WANTED TO CHARGE ME $160 TO FIX IT...I HAVE BEEN N CONTACT WITH CHEVY CUSTOMER SERVICE AND AM HOPING THEY WILL MAKE THIS RIGHT...I WANT THIS PROBLEM FIXED AND TO BE REIMBURSED MY $90...NO ONE SHOULD BE REPLACING A GAS PEDAL ON A CAR WITH LESS THAN 45000 MILES AND UNDER 5 YEARS OLD... *TR

NHTSA ODI #10505697

89,998 miles · Apr 6, 2013
Electronic Stability Control (esc)EngineVehicle Speed Control

WHEN MY IMPALA FIRST STARTED TO DISPLAY THE ENGINE POWER REDUCE MESSAGE. I WAS TOLD THAT IT WAS THE ACCELERATOR PEDAL POSITION SENSOR. SO I CHANGE THE GAS PEDAL THE ENGINE LIGHT WHEN OFF FOR ABOUT TWO WEEKS. THEN MY CAR CUT OFF ONE DAY AS I WAS ON MY WAY TO WORK. WHEN I WENT TO GET IT CHECK THEY TOLD ME IT MIGHT BE THE ALTERNAT…

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WHEN MY IMPALA FIRST STARTED TO DISPLAY THE ENGINE POWER REDUCE MESSAGE. I WAS TOLD THAT IT WAS THE ACCELERATOR PEDAL POSITION SENSOR. SO I CHANGE THE GAS PEDAL THE ENGINE LIGHT WHEN OFF FOR ABOUT TWO WEEKS. THEN MY CAR CUT OFF ONE DAY AS I WAS ON MY WAY TO WORK. WHEN I WENT TO GET IT CHECK THEY TOLD ME IT MIGHT BE THE ALTERNATOR AND THEN IT WAS THE THROTTLE BODY. THEN THERE WAS NOTHING WRONG WITH IT BUT MY CAR IS NOW PARK AND REFUSE TO STAY RUNNING. IT WILL START ONLY TO CUT OFF A MILE OR SO INTO DRIVING. *TR

NHTSA ODI #10507376

45,000 miles · Mar 21, 2013
EngineTraction Control SystemVehicle Speed Control

I WAS DRIVING ON THE HIGHWAY AT APPROXIMATELY 60 MPH AND MY CHECK ENGINE AND TRACTION CONTROL LIGHT CAME ON. ADDITIONALLY, THE DASH ALTERNATELY FLASHED BETWEEN "SERVICE TRACTION CONTROL" AND "REDUCED ENGINE POWER." MY CAR SLOWED DOWN, BUT NEVER CUT OFF. MY ACCELERATION WASN'T WHAT IT NORMALLY IS. I WAS ABLE TO MAKE IT TO MY DEST…

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I WAS DRIVING ON THE HIGHWAY AT APPROXIMATELY 60 MPH AND MY CHECK ENGINE AND TRACTION CONTROL LIGHT CAME ON. ADDITIONALLY, THE DASH ALTERNATELY FLASHED BETWEEN "SERVICE TRACTION CONTROL" AND "REDUCED ENGINE POWER." MY CAR SLOWED DOWN, BUT NEVER CUT OFF. MY ACCELERATION WASN'T WHAT IT NORMALLY IS. I WAS ABLE TO MAKE IT TO MY DESTINATION, BUT WAS NOT A FUN EXPERIENCE. *TR

NHTSA ODI #10503881

Mileage unknown · Jan 10, 2013
Traction Control SystemVehicle Speed Control

2008 AN UP CHEVY IMPALA TRACTION CONTROL LIGHT AN CHECK ENGINE LIGHT PLUS ENGINE POWER REDUCE. ITS ACTUALLY THE SENSOR ON YOUR GAS PEDAL WHAT WILL HAPPENED WITHOUT WARNING THE CAR WILL DROP TO 5 MPH. WHILE YOU ARE DRIVING AND STAY LIKE THAT I TOOK IT TO THE CHEVY DEALER AN THEY EXPLAIN TO ME WHAT'S THE PROBLEM ITS A VERY SERIOUS…

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2008 AN UP CHEVY IMPALA TRACTION CONTROL LIGHT AN CHECK ENGINE LIGHT PLUS ENGINE POWER REDUCE. ITS ACTUALLY THE SENSOR ON YOUR GAS PEDAL WHAT WILL HAPPENED WITHOUT WARNING THE CAR WILL DROP TO 5 MPH. WHILE YOU ARE DRIVING AND STAY LIKE THAT I TOOK IT TO THE CHEVY DEALER AN THEY EXPLAIN TO ME WHAT'S THE PROBLEM ITS A VERY SERIOUS DEFECT THAT CAN CAUSE A REAR END CRASH TO THE LOSING THE AMOUNT OF POWER. THE CHEVY DEALERSHIP EXPLAINED TO ME THAT THEY HAVE A LOT OF PROBLEMS WITH THE CHEVY IMPALA GAS PEDAL.THIS IS A SERIOUS ISSUE AN NEED TO A RECALL FOR THESE MAKES AN MODELS. *TR

NHTSA ODI #10492181

90,095 miles · Dec 30, 2012
Electronic Stability Control (esc)Vehicle Speed Control

I STARTED THE CAR WITH THE REMOTE START AND IT WAS WARMING UP, WENT OUT PUT MY TWO SMALL CHILDREN I AND STARTED IT WITH THE KEY, WENT BACK TO GRAB MY BAG, AND GOT IN TO GO. WHEN I HOPPED IN THE MESSAGE CENTER WAS BLINKING; ENGINE POWER REDUCED, STABILIZATION TRACK, AND SOMETHING ELSE TO DO WITH THE TRACTION CONTROL. IT WAS VER…

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I STARTED THE CAR WITH THE REMOTE START AND IT WAS WARMING UP, WENT OUT PUT MY TWO SMALL CHILDREN I AND STARTED IT WITH THE KEY, WENT BACK TO GRAB MY BAG, AND GOT IN TO GO. WHEN I HOPPED IN THE MESSAGE CENTER WAS BLINKING; ENGINE POWER REDUCED, STABILIZATION TRACK, AND SOMETHING ELSE TO DO WITH THE TRACTION CONTROL. IT WAS VERY COLD OUT AND WE HAD A LONG DRIVE, I WAS VERY SCARED WE WOULD BE STRANDED IN THE COLD. MY CAR HAS SEVERAL MILES, BUT HAS ALWAYS BEEN TAKEN CARE OF. THIS IS VERY FRUSTRATING, AND SCARY. I HAVE DONE SOME RESEARCH ON-LINE, AND IT SOUNDS AS THOUGH CHEVY IS DOING NOTHING TO HELP THE SITUATION, AND ITS HAPPENING WITH A LOT OF THE SAME YEAR VEHICLES! I LOVE MY CAR, THIS IS THE FIRST BIG ISSUE, I AM SO SAD ABOUT IT. I AM WORRIED ABOUT DRIVING WITH MY KIDS, FROM WHAT I HAVE READ THE CAR WILL JUST TURN OFF! NOT OKAY!!! I HOPE THAT SOMETHING; SAY A RECALL HAPPENS SO THIS CAN BE REPAIRED WITH FEW LIVES LOST. DO THEY WANT TO BE LIKE TOYOTA AND ALL THE HEADACHE THEY HAD! *TR

NHTSA ODI #10490512

73,014 miles · Dec 23, 2012
EngineSteeringVehicle Speed Control

I WAS GOING DOWN THE ROAD AND OUT OF NO WHERE MY CAR SAYS SERVICE TRACTION CONTROL, FOLLOWED BY SERVICE STABILITRAK, FOLLOWED BY ENGINE POWER REDUCED WITH A CHECK ENGINE LIGHT ON. LOST ALMOST ALL POWER TO THE CAR, COULD BARELY TURN THE WHEEL AND THE BRAKES FELT EXTREMELY STRANGE. I COULD ONLY GO ABOUT 5MPH TOPS DOWN THE ROAD. LU…

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I WAS GOING DOWN THE ROAD AND OUT OF NO WHERE MY CAR SAYS SERVICE TRACTION CONTROL, FOLLOWED BY SERVICE STABILITRAK, FOLLOWED BY ENGINE POWER REDUCED WITH A CHECK ENGINE LIGHT ON. LOST ALMOST ALL POWER TO THE CAR, COULD BARELY TURN THE WHEEL AND THE BRAKES FELT EXTREMELY STRANGE. I COULD ONLY GO ABOUT 5MPH TOPS DOWN THE ROAD. LUCKILY I WAS ONLY 2 MIN FROM HOME. WHICH ACTUALLY TOOK 6 MIN BECAUSE OF THE REDUCED ENGINE SPEED. RIGHT BEFORE I PULLED IN THE DRIVEWAY THE MOTOR DIED. THE NEXT DAY I WENT OUT AND TRIED STARTING IT. THE REMOTE START WASN'T WORKING AND MY CHECK ENGINE LIGHT WAS STILL ON BUT IT DID START UP WITH A TURN OF THE KEY. I LOOKED UP CODES AND FOUND THAT IT WAS TELLING ME THE ACCELERATOR PEDAL SENSOR WAS BAD. I HAVE GOOGLED THIS ISSUE AND FOUND THAT IT IS A VERY DANGEROUS, COMMON PROBLEM WITH THE CHEVY IMPALA. ALTHOUGH THAT IS THE CODE IT IS GIVING ME, OTHER PEOPLE HAVE HAD TO REPLACE THEIR THROTTLE BODY TO RESOLVE THE PROBLEM. GM SHOULD RECALL IT BEFORE SOMEONE GETS HURT. I WILL NOT BE BUYING ANOTHER GM VEHICLE IN THE FUTURE BECAUSE THEY ARE TOO CHEAP TO FIX THIS COMMON ISSUE WHICH COULD ESSENTIALLY COST SOMEONE THEIR LIFE. *TR

NHTSA ODI #10489576

Mileage unknown · Nov 3, 2012
Seat BeltsVehicle Speed Control

I OWN A 2008 CHEVROLET IMPALA. TODAY 11/03/2012 WHILE DRIVING TO WORK THE CHECK ENGINE LIGHT CAME ON WITH A MESSAGE INDICATING "ENGINE POWER REDUCED". I RESEARCHED THE ISSUE AND DISCOVERED THE ACCELERATOR PEDAL SENSOR IS MALFUNCTIONING AND THIS CAUSES THE MESSAGE AND CHECK ENGINE TO APPEAR. THIS SENSOR AFFECTS THE CARS DRIVABILI…

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I OWN A 2008 CHEVROLET IMPALA. TODAY 11/03/2012 WHILE DRIVING TO WORK THE CHECK ENGINE LIGHT CAME ON WITH A MESSAGE INDICATING "ENGINE POWER REDUCED". I RESEARCHED THE ISSUE AND DISCOVERED THE ACCELERATOR PEDAL SENSOR IS MALFUNCTIONING AND THIS CAUSES THE MESSAGE AND CHECK ENGINE TO APPEAR. THIS SENSOR AFFECTS THE CARS DRIVABILITY AND CAUSES LIMITED SPEED IN THE VEHICLE. I LOOKED ON GOOGLE AND THERE ARE SEVERAL COMPLAINTS REGARDING THE SAME ISSUE. I GUESS NO ONE HAS REPORTED IT BUT IT SEEMS VERY COMMON AMONGST CHEVROLET IMPALA MODEL CARS 2006 AND UP. THIS IS THE EMAIL LINK WITH SEVERAL OTHER CONCERNS REGARDING THE ACCELERATOR PEDAL SENSOR: HTTP://TOWNHALL-TALK.EDMUNDS.COM/DIRECT/VIEW/.F215E7E I ALSO HAVE A PROBLEM WITH MY SEAT BELT. THE DRIVER??S SIDE SEAT BELT WILL NOT FASTEN WITHOUT ME HOLDING THE LATCH DOWN. THIS ISSUE STARTED AROUND AUGUST 2012 AND IS A REAL SAFETY CONCERN OF MINE. I DIDN'T THINK MUCH OF IT BECAUSE IT FASTENED. BUT KNOWING I HAVE TO HOLD THE LATCH DOWN IN ORDER FOR IT TO CLICK INDICATES A DEFECT AND EVENTUALLY IT MAY NOT WORK PROPERLY. PLEASE INVESTIGATE THESE ISSUES AND IF NECESSARY WARRANT A RECALL BECAUSE SAFETY IS THE NUMBER ONE CONCERN FOR CONSUMERS AND IF I DON'T FEEL SAFE DRIVING A GM VEHICLE IT WILL BE MY FIRST AND LAST TIME PURCHASING ONE. *TR

NHTSA ODI #10483244

178,000 miles · Jul 10, 2012
Vehicle Speed Control

TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING 65 MPH, HER VEHICLE STALLED. THE CONTACT HAD TO MANEUVER THROUGH TRAFFIC IN ORDER TO AVOID A CRASH. THE AUTO THROTTLE BODY DISABLED LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT DID NOT TRY TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO HER…

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TL* THE CONTACT OWNS A 2008 CHEVROLET IMPALA. THE CONTACT STATED WHILE DRIVING 65 MPH, HER VEHICLE STALLED. THE CONTACT HAD TO MANEUVER THROUGH TRAFFIC IN ORDER TO AVOID A CRASH. THE AUTO THROTTLE BODY DISABLED LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT DID NOT TRY TO RESTART THE VEHICLE. THE VEHICLE WAS TOWED TO HER HOME. THE VEHICLE WAS TAKEN TO THE DEALER WHO DETERMINED THE ACCELERATOR SENSOR MALFUNCTIONED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 178,000. THE VIN WAS UNAVAILABLE.

NHTSA ODI #10465053

Mileage unknown · Jan 4, 2012
Vehicle Speed ControlCrash

2008 CHEVROLET IMPALA. CONSUMER STATES UNINTENDED ACCELERATION WHILE DRIVER WAS NOT IN THE VEHICLE *TGW THE CONSUMER STATED HE LEFT THE VEHICLE RUNNING, IN PARK, WITH THE DOOR OPENED. HE WALKED APPROXIMATELY SIX STEPS AWAY FROM THE VEHICLE, AND WHEN HE TURNED TO GO BACK TO THE VEHICLE, IT WAS IN MOTION, THE OPENED DOOR HIT THE …

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2008 CHEVROLET IMPALA. CONSUMER STATES UNINTENDED ACCELERATION WHILE DRIVER WAS NOT IN THE VEHICLE *TGW THE CONSUMER STATED HE LEFT THE VEHICLE RUNNING, IN PARK, WITH THE DOOR OPENED. HE WALKED APPROXIMATELY SIX STEPS AWAY FROM THE VEHICLE, AND WHEN HE TURNED TO GO BACK TO THE VEHICLE, IT WAS IN MOTION, THE OPENED DOOR HIT THE SIDE OF THE GARAGE, WHICH STOPPED THE VEHICLE. *JB

NHTSA ODI #10442974

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.