← New search

2013 Chevrolet Volt

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2013 Chevrolet Volt do not stand out strongly from the model-year median of 169.

About this comparison →

When problems were reported

Mileage at the reported incident

213 reports with mileage · 95 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.

  • Air Bags. Review the 161 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Electrical System. Review the 63 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel/propulsion System. Review the 53 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

8 crash reports2 fire reports7 injury reports

Engine complaints

37 reports
Clear category filter
6,600 miles · Oct 14, 2014
Electrical SystemEngineFuel/propulsion System

I RECEIVED THE FOLLOWING MESSAGE ON THE CAR DASH DISPLAY: PROPULSION REDUCED-ENGINE NOT AVAILABLE. THIS MESSAGE CAME ON WHILE I WAS DRIVING IN THE CARPOOL LANE. I CALLED GM THRU ON STAR AND WAS TOLD THAT I HAD A CATASTROPHIC ERROR AND NEEDED TO GET MY CAR INTO REPAIR WITH 24 HOURS. WITH ONLY 6 MILES LEFT ON THE BATTERY, I TO…

Read full complaint

I RECEIVED THE FOLLOWING MESSAGE ON THE CAR DASH DISPLAY: PROPULSION REDUCED-ENGINE NOT AVAILABLE. THIS MESSAGE CAME ON WHILE I WAS DRIVING IN THE CARPOOL LANE. I CALLED GM THRU ON STAR AND WAS TOLD THAT I HAD A CATASTROPHIC ERROR AND NEEDED TO GET MY CAR INTO REPAIR WITH 24 HOURS. WITH ONLY 6 MILES LEFT ON THE BATTERY, I TOLD THE GM REP THAT I BETTER GET THE CAR TO A CHEVY DEALER. I IMMEDIATELY DROVE TO THE DEALERSHIP IN CULVER CITY. THE MINUTE I PULLED INTO THE DRIVEWAY OF THE DEALERSHIP, MY CAR STOPPED AND WOULD NOT RESTART. THIS COULD HAVE BEEN A DISASTER IF THE CAR HAD STOPPED IN THE CARPOOL LANE. I HAVE READ OF OTHER COMPLAINTS ON GOOGLE AND YAHOO. I WAS TOLD BY THE DEALERSHIP THAT THEY WERE GOING TO REPLACE THE ENGINE MODULE, WHICH THEY SAID WOULD TAKE 8 HOURS TO REPAIR, BUT WHEN I PICKED UP THE CAR, THEY ONLY REPLACED THE TRANSMISSION MODULE. SINCE THE INCIDENT, I ONLY GET A FULL CHARGE OF 32 TO 34 MILES, WHERE BEFORE THE INCIDENT I WAS GETTING A FULL CHARGE OF 42 TO 44 MILES PER CHARGE. THIS IS DEFINITE SAFETY ISSUE AS GM BLAMES THE DRIVER FOR THE PROBLEM. GM NEEDS TO REPLACE THE ENGINE MODULE ON MY CAR. *TR

NHTSA ODI #10644626

1,000 miles · Aug 4, 2014
Electrical SystemEngineService Brakes

THE CAR'S ELECTRICAL / SOFTWARE ISSUES CAUSED (1) ALL OF THE WINDOWS TO ROLL DOWN IN UNISON (IN FOR REPAIR 3 TIMES TO FIX THIS ONE), (2) CAUSED THE CAR TO NOT RECOGNIZE THAT IT WAS IN "PARK", THUS NOT SHUTTING OFF, AND (3) CAUSED THE CAR TO LOSE POWER WITHOUT TOUCHING ANY OF THE BUTTONS ON THE CONSOLE (I.E. THE "DRIVE" BUTTON OR…

Read full complaint

THE CAR'S ELECTRICAL / SOFTWARE ISSUES CAUSED (1) ALL OF THE WINDOWS TO ROLL DOWN IN UNISON (IN FOR REPAIR 3 TIMES TO FIX THIS ONE), (2) CAUSED THE CAR TO NOT RECOGNIZE THAT IT WAS IN "PARK", THUS NOT SHUTTING OFF, AND (3) CAUSED THE CAR TO LOSE POWER WITHOUT TOUCHING ANY OF THE BUTTONS ON THE CONSOLE (I.E. THE "DRIVE" BUTTON OR THE "POWER" BUTTON). THE LATEST INCIDENT OCCURRED LAST FRIDAY (AUGUST 1, 2014) WHEN THE CAR JUST LOST POWER WHILE I WAS DRIVING AT 65 MPH ON I-85 NORTH AT AROUND 4:00PM. I HAD TO GET OVER FROM 4 LANES OF TRAFFIC WITH NO POWER AT ALL IN THE CAR AND LUCKILY DID SO WITHOUT INCIDENT. ONSTAR'S DIAGNOSTICS SHOWED THAT THE ELECTRICAL SYSTEM, BRAKING SYSTEM, ENGINE, AND OTHER PARTS OF THE CAR SHOWED THE CAR NEEDED IMMEDIATE ATTENTION. I PUT THE CAR IN PARK AND WHILE STILL WITH ONSTAR THE DASHBOARD LIT UP AND THE POWER BUTTON LIT UP TOO. I HIT THE POWER BUTTON AND DROVE STRAIGHT TO THE RICK HENDRICK CHEVY DEALERSHIP IN DULUTH. WHEN I WENT TO PICK THE CAR UP LATER SATURDAY MORNING, I WAS TOLD THAT THERE'S NOTHING THEY CAR DO BECAUSE THEY CAN'T RECREATE THE PROBLEM. THEY HAVE REFLASHED VARIOUS ECUS, BUT AT THE END OF THE DAY CANNOT "RECREATE" THE PROBLEMS AND CANNOT FIX THEM. SO THEY JUST WIPE THEIR HANDS CLEAN OF THESE ISSUES AND ACT LIKE THEY DON'T EXIST. (THE SERVICE MANAGER ACTUALLY CALLED ME "IGNORANT" ONCE AND LATER APOLOGIZED.) I PRAY IT DOESN'T TAKE PEOPLE DYING IN THESE CARS BEFORE CHEVROLET AND/OR GENERAL MOTORS DOES SOMETHING TO FIX THEM. *TR

NHTSA ODI #10618578

6,500 miles · Jul 30, 2014
Electrical SystemEngineParking Brake

TL* THE CONTACT OWNS A 2013 CHEVROLET VOLT. WHILE PULLING OUT THE DRIVEWAY AT 10 MPH, THE PARKING BRAKE AUTOMATICALLY APPLIED AND THE VEHICLE STALLED. THE CHECK ENGINE INDICATOR ILLUMINATED. THE DEALER STATED THAT WATER LEAKED INTO THE BATTERY CHARGING RECEPTACLE CAUSING THE RESISTANCE OF THE INTERLOCK TO DROP OVER A PERIOD OF …

Read full complaint

TL* THE CONTACT OWNS A 2013 CHEVROLET VOLT. WHILE PULLING OUT THE DRIVEWAY AT 10 MPH, THE PARKING BRAKE AUTOMATICALLY APPLIED AND THE VEHICLE STALLED. THE CHECK ENGINE INDICATOR ILLUMINATED. THE DEALER STATED THAT WATER LEAKED INTO THE BATTERY CHARGING RECEPTACLE CAUSING THE RESISTANCE OF THE INTERLOCK TO DROP OVER A PERIOD OF TIME, WHICH CONTRIBUTED TO THE PARKING BRAKE BECOMING ENGAGED. THE VEHICLE WAS REPAIRED AND THE MANUFACTURER WAS NOT NOTIFIED. THE FAILURE MILEAGE WAS 6,500. UPDATED 12/2/14*CN THE CONSUMER STATED THE INCIDENT CAUSED THE TRANSMISSION TO GO INTO PARK.

NHTSA ODI #10617670

11,669 miles · May 8, 2014
Electrical SystemEngineFuel/propulsion System

THE VEHICLE HAS REPEATEDLY SHUT DOWN WHILE DRIVING/FAILED TO START SINCE JUNE 2013. THE VEHICLE HAS BEEN IN SERVICE DUE TO REPAIRS = 42 DAYS IN THE LAST 10 MONTHS. GM CONTINUES TO REPLACE/RECALL PARTS ON THE HYBRID BATTERY AS WELL AS OTHER PARTS CONCERNING SECONDARY PROBLEMS. I AM AFRAID THIS VEHICLE WILL SHUT DOWN AGAIN WHIL…

Read full complaint

THE VEHICLE HAS REPEATEDLY SHUT DOWN WHILE DRIVING/FAILED TO START SINCE JUNE 2013. THE VEHICLE HAS BEEN IN SERVICE DUE TO REPAIRS = 42 DAYS IN THE LAST 10 MONTHS. GM CONTINUES TO REPLACE/RECALL PARTS ON THE HYBRID BATTERY AS WELL AS OTHER PARTS CONCERNING SECONDARY PROBLEMS. I AM AFRAID THIS VEHICLE WILL SHUT DOWN AGAIN WHILE I AM DRIVING CAUSING AN ACCIDENT HURTING ME OR OTHERS ON THE ROAD. CLEARLY, IT IS A POTENTIAL DEATH TRAP. *TR

NHTSA ODI #10587172

19,900 miles · Apr 8, 2014
EngineFuel/propulsion SystemPower Train

MY CHEVY VOLT WAS AT A CAR WASH AND THE ATTENDANT WAS ABLE TO TURN THE CAR OFF WHILE STILL IN "D" GEAR. THE CAR IS ABLE TO ROLL AND MOVE WHILE IN THIS GEAR. I WAS SURPRISED SO I TESTED IT FOR MYSELF, AND SURE ENOUGH YOU'RE ABLE TO TURN THE POWER OFF AND EXIT THE VEHICLE WHILE STILL IN 'D'. EVERY CAR I'VE OWNED (AUTOMATIC) FORCES…

Read full complaint

MY CHEVY VOLT WAS AT A CAR WASH AND THE ATTENDANT WAS ABLE TO TURN THE CAR OFF WHILE STILL IN "D" GEAR. THE CAR IS ABLE TO ROLL AND MOVE WHILE IN THIS GEAR. I WAS SURPRISED SO I TESTED IT FOR MYSELF, AND SURE ENOUGH YOU'RE ABLE TO TURN THE POWER OFF AND EXIT THE VEHICLE WHILE STILL IN 'D'. EVERY CAR I'VE OWNED (AUTOMATIC) FORCES YOU TO SHIFT INTO P OR N BEFORE ALLOWING THE KEY TO REMOVE. THIS IS A GREAT CONCERN FOR ME, SO I CALLED MY VOLT ADVISOR TODAY AND WAS INFORMED THAT OTHER CUSTOMERS ROLLED INTO THEIR GARAGE, AND THE BEHAVIOR WAS BY DESIGN AND NORMAL. *TR

NHTSA ODI #10578140

196 miles · Jun 19, 2013
EngineFuel/propulsion SystemPower Train

I LEASED A NEW 2013 VOLT ON FRIDAY AND DROVE IT TO WORK AND HOME ON MONDAY. THE BATTERY DISPLAY SHOWED IT WAS AT MINIMUM, ZERO MILES REMAINING. THE VOLT WAS RUNNING WITH THE INTERNAL COMBUSTION ENGINE. AS I PULLED OUT OF A PARKING LOT, "'PROPULSION POWER IS REDUCED"', "'ENGINE NOT AVAILABLE"', AND "SERVICE STABILITRAC" DIS…

Read full complaint

I LEASED A NEW 2013 VOLT ON FRIDAY AND DROVE IT TO WORK AND HOME ON MONDAY. THE BATTERY DISPLAY SHOWED IT WAS AT MINIMUM, ZERO MILES REMAINING. THE VOLT WAS RUNNING WITH THE INTERNAL COMBUSTION ENGINE. AS I PULLED OUT OF A PARKING LOT, "'PROPULSION POWER IS REDUCED"', "'ENGINE NOT AVAILABLE"', AND "SERVICE STABILITRAC" DISPLAYED ON THE DRIVER INFORMATION CENTER. AFTER GOING ABOUT 500 FEET, I STOPPED AT AN INTERSECTION TO MAKE A LEFT TURN AND THE VOLT STALLED. I TURNED ON THE FLASHERS AND ATTEMPTED TO RESTORE POWER BY PRESSING THE BRAKE AND THE POWER BUTTON. THE DISPLAYS LIT UP BUT THE INSTRUMENT CLUSTER CONTINUED TO DISPLAY "'INITIALIZING-WAIT TO SHIFT"'. I TURNED THE VOLT OFF BY PRESSING THE POWER BUTTON AGAIN AND ATTEMPTED TO RESTORE POWER SEVERAL TIMES WITH THE SAME RESULT. CARS BEHIND ME WERE ATTEMPTING TO PULL AROUND ON THE LEFT SIDE BUT WERE BLOCKED BY CARS TURNING ONTO THE TWO-LANE STREET. I PUSHED THE ON-STAR BUTTON AND REQUESTED ASSISTANCE. SOON, A VOLT SPECIALIST CAME ON THE LINE AND SAID SHE SUSPECTED THE SECURITY SYSTEM OR THE 12V BATTERY. SHE HAD ME TURN EVERYTHING OFF AND WALK 200 FEET FROM THE CAR. WHEN I RETURNED AND TRIED TO START THE VOLT, IT STARTED BRIEFLY BUT SHUT DOWN. SHE SAID THE 12V BATTERY MIGHT BE LOW AND THEY WOULD HAVE THE TOW TRUCK DRIVER BRING BOOSTER CABLES TO CHARGE THE BATTERY. I HAD MANAGED TO PUSH THE VOLT TO THE CURB AND GOT SOME CABLES TO BOOST IT. THE VOLT INITIALIZED AND THE DISPLAYS LOOKED NORMAL. I DROVE TO THE NEXT INTERSECTION AND STOPPED FOR THE LIGHT. WHEN THE LIGHT CHANGED, IT STALLED AGAIN. I WAS ABLE TO CONTINUE TO MY HOUSE ON BATTERY POWER BUT IT WOULD NOT GO UP THE SLOPE OF THE DRIVEWAY. I TRIED TO CHARGE IT BUT THE CHARGE CYCLE WOULD NOT START. THE NEXT MORNING, IT HAD "'PLUG IN TO CHARGE" LIGHT ON. I STARTED THE CHARGE CYCLE. IT GOES TO THE DEALER TONIGHT. *TR

NHTSA ODI #10520732

800 miles · Dec 6, 2012
Electrical SystemEngine

I WAS ON MY WAY HOME, IT WAS VERY DARK OUTSIDE ON A TWO LANE HIGHWAY GOING 60-60MPH AND WANTED TO SWITCH OVER TO ELECTRIC "HOLD" MODE SO I COULD SAVE THE ELECTRIC BATTERY FOR CITY DRIVING. I GLANCED OVER AND HIT THE "DRIVE MODE" BUTTON THREE TIMES THINKING I WAS GOING TO SEND THE DRIVE MODE DOWN TO "HOLD". INSTEAD WHAT I DID WAS…

Read full complaint

I WAS ON MY WAY HOME, IT WAS VERY DARK OUTSIDE ON A TWO LANE HIGHWAY GOING 60-60MPH AND WANTED TO SWITCH OVER TO ELECTRIC "HOLD" MODE SO I COULD SAVE THE ELECTRIC BATTERY FOR CITY DRIVING. I GLANCED OVER AND HIT THE "DRIVE MODE" BUTTON THREE TIMES THINKING I WAS GOING TO SEND THE DRIVE MODE DOWN TO "HOLD". INSTEAD WHAT I DID WAS POWERED OFF THE CAR BY HITTING THE POWER BUTTON. (THE TWO BUTTONS ARE RIGHT NEXT TO EACH OTHER AND BOTH REQUIRE MULTIPLE PRESSES TO WORK). SO THERE I WAS, THE CAR WENT BLACK INSIDE AND THE HEADLIGHTS TURNED OFF OUTSIDE WHILE I WAS GOING 65MPG ON A TWO LANE HIGHWAY (ONE LANE EACH DIRECTION). THANK GOD THERE WAS NOBODY AROUND OR CLOSE TO ME AND THANKFULLY THERE WAS JUST ENOUGH AMBIENT LIGHT FROM THE MOON TO SEE WHERE I WAS. I HIT THE POWER BUTTON TO TRY TURNING IT BACK ON, NOTHING. LUCKILY THE HAZARD SWITCH REMAINED LIT AND I WAS ABLE TO TURN MY HAZARDS ON. I HAD TO STOP ON THE SIDE OF THE ROAD, PUT IT BACK INTO PARK AND HIT POWER. I REALIZE I HIT THE WRONG BUTTON BUT WHY SHOULD SUCH AN EASY MISTAKE ALMOST CAUSE A FATALITY. IF NOT FOR THE MOON I MIGHT HAVE DROVE OFF THE ROAD AND INTO A TELEPHONE POLE. I WOULD HIGHLY RECOMMEND THEY MOVE THE POWER BUTTON TO THE STEERING COLUMN, SIMILAR TO WHERE A KEY WOULD BE LOCATED. FOR GODS SAKE, DON'T PUT A MULTIPLE CLICK BUTTON NEXT TO ANOTHER MULTIPLE CLICK BUTTON THAT HAS SUCH SIGNIFICANCE IN THE OUTCOME OF YOUR LIFE. AND FOR GOD SAKES, DON'T TURN OFF THE HEADLIGHTS IF THE COMPUTER DETECTS I'M GOING 65 AND KNOWS VIA THE SENSOR THAT IT'S DARK OUTSIDE! THERE ARE MULTIPLE COMPLAINTS ABOUT THIS AT VARIOUS WEB SITES, INCLUDING.... HTTP://GM-VOLT.COM/FORUM/SHOWTHREAD.PHP?17249-POWER-BUTTON-TOO-CLOSE-TO-DRIVE-MODE-BUTTON! SOMEBODY IS GOING TO BE HAVE A FATALITY SOON IF THIS IS NOT FIXED. *TR

NHTSA ODI #10487534

Official recalls

3

23V516000 · Air Bags:frontal:driver Side:inflator Module

Jul 27, 2023

General Motors, LLC (GM) is recalling certain 2013 Buick Verano, Chevrolet Camero, Sonic, and Volt vehicles. The driver-side air bag inflator may explode during deployment due to a manufacturing defect.

Consequence & remedy

Consequence: An inflator explosion may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.

Remedy: Dealers will replace the driver-side air bag module, free of charge. On some 2013 Volt vehicles, the steering wheel will be replaced as well, free of charge. Owner notification letters were mailed October 23, 2023. Owners may contact Buick customer service at 1-800-521-7300 and Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N232413120.

18V397000 · Hybrid Propulsion System

Jun 14, 2018

General Motors LLC (GM) is recalling certain 2013 Chevrolet Volt vehicles. An update to the Hybrid Powertrain Control Module 2 (HPCM2) may have disabled the cell balancing function causing a low-voltage condition.

Consequence & remedy

Consequence: If the voltage drops, the vehicle may lose propulsion, increasing the risk of crash.

Remedy: GM will notify owners, and dealers will reprogram the HPCM2, free of charge. The recall began July 24, 2018. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 18215.

15V145000 · Electrical System:ignition; Engine And Engine Cooling:engine:gasoline

Mar 13, 2015

General Motors LLC (GM) is recalling certain model year 2011-2013 Volt vehicles manufactured August 25, 2010, to June 26, 2013. If the driver exits the vehicle without turning off the electrical system, the battery may drain low enough that the gasoline engine will automatically start itself to recharge the electric battery.

Consequence & remedy

Consequence: If the engine runs for an extended period of time in an enclosed space, there may be a build up of carbon monoxide, increasing the risk of personal injury.

Remedy: GM will notify owners, and dealers will update the engine management software to limit the time that the stationary vehicle can be left in the ON position, free of charge. The recall began April 15, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14617.

Additional source detail variants (2)

Electrical System:ignition

General Motors LLC (GM) is recalling certain model year 2011-2013 Volt vehicles manufactured August 25, 2010, to June 26, 2013. If the driver exits the vehicle without turning off the electrical system, the battery may drain low enough that the gasoline engine will automatically start itself to recharge the electric battery.

Consequence: If the engine runs for an extended period of time in an enclosed space, there may be a build up of carbon monoxide, increasing the risk of personal injury.

Remedy: GM will notify owners, and dealers will update the engine management software to limit the time that the stationary vehicle can be left in the ON position, free of charge. The recall began April 15, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14617.

Engine And Engine Cooling:engine:gasoline

General Motors LLC (GM) is recalling certain model year 2011-2013 Volt vehicles manufactured August 25, 2010, to June 26, 2013. If the driver exits the vehicle without turning off the electrical system, the battery may drain low enough that the gasoline engine will automatically start itself to recharge the electric battery.

Consequence: If the engine runs for an extended period of time in an enclosed space, there may be a build up of carbon monoxide, increasing the risk of personal injury.

Remedy: GM will notify owners, and dealers will update the engine management software to limit the time that the stationary vehicle can be left in the ON position, free of charge. The recall began April 15, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is 14617.

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

2

DP22005 · Pedestrian Alert Sounds

Opened Jan 27, 2023 · Closed Aug 7, 2023

Status: closed (inferred from source dates) · Electrical System:propulsion System

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021.On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject matter described in the petition. On June 24, 2023 and as supplemented on June 25, 2023, the petitioner notified NHTSA he was withdrawing his petition. The petitioner indicated that, based on his review of data, there is no justification for asserting potential benefits that could be derived from actions sought by my petition. Based on the petitioner's withdrawal, DP22-005 is closed. Closure of this DP does not represent a determination by NHTSA regarding the subject matter of the petition.

PE19013 · Passenger Sensing System

Opened Sep 17, 2019 · Closed Jul 2, 2021

Status: closed (inferred from source dates) · Air Bags:sensor:occupant Classification:front Passenger

In September 2019, the Office of Defects Investigation (ODI) opened PE19-013 to assess the potential safety related effects of a malfunction of the Passenger Sensing System (PSS) in 2012-2013 Model Year (MY) Chevrolet Volt vehicles. Consumers reported that due to a malfunction of the PSS, the air bag system malfunction indicator light (MIL) was activated. Many of the complaints noted the malfunction occurred after the warranty period expired and mentioned high repair costs as a major deterrent to the repair of the vehicle.The PSS sensor mat is embedded in the front passenger seat cushion and is intended to detect child seats and small statured occupants who could be harmed by deployment of the frontal passenger air bag. The PSS may develop a malfunction due to bunching of the sensor mat in the seat trench. The bunching of the sensor mat could cause the mat to repeatedly fold in the same location. Over time, the repeated folding can cause an increased resistance in the sensor mat. An increased resistance in the PSS sensor mat is detected as a fault in the air bag system diagnostic. If this fault is detected, a diagnostic trouble code will be stored in the air bag control unit and the air bag MIL will illuminate.Further, if the fault is detected, the passenger frontal and knee air bags will be suppressed in a crash of sufficient severity to warrant a commanded deployment regardless of the nature of size of the occupant of the front passenger seat.The report counts shown above include only those reports that specifically address the issue covered by this investigation, failure of the PSS sensor mat. Reports alleging only that the air bag light is on with no cause stated, or where a different cause was otherwise identified, were excluded as the air bag light could be illuminated for system faults other than a PSS malfunction.The subject vehicles have been in service for approximately ten (10) years. An analysis of General Motors (GM) warranty data for the subject vehicles, including a comparison with other agency and manufacturer data pertaining to similar occupant detection system failure investigations, indicates the subject vehicles experience a comparatively low complaint rate for this issue given the number of years the vehicles have been in service.GM has instituted a cost reduction program for the repair/replacement of the PSS in the subject vehicles. Based on this cost reduction program as well as:1) a comparatively low warranty rate; 2) no reported injuries, deaths or asymmetric deployments; and 3) the age of the vehicles; ODI is closing this Preliminary Evaluation. The closing of this investigation does not constitute a finding by NHTSA that a safety related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI complaints cited above can be viewed at www.nhtsa.gov under the following ODI identification numbers in a separate attachment.