Air Bags. Review the 86 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Electrical System. Review the 86 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Fuel/propulsion System. Review the 37 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

6 crash reports2 fire reports8 injury reports

What owners actually said

245 reports

100,000 miles · Jun 24, 2016

Power Train

AFTER SHIFTING INTO "D" DRIVE, ON A FLAT AREA, AND WHILE STANDING STILL, THEN PRESSING ON THE ACCELERATOR, THE CAR WENT BACKWARDS AS IF IN R. REPEATEDLY SHIFTING BACK INTO P OR R AND THEN TO BACK INTO D, DID NOT CHANGE THE BEHAVIOR. KEPT GOING IN REVERSE AS IF IN "R". ONLY TURNING THE CAR ON AND OFF A FEW TIMES BROUGHT IT BACK T…

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NHTSA ODI #10876465

85,500 miles · Jun 14, 2016

Engine

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I HAVE OWNED THE VEHICLE FOR 4.5 YEARS. IN THE LAST TWO MONTHS THE ERROR MESSAGE "PROPULSION POWER REDUCED" HAS HAPPENED AND THE VEHICLE HAS GONE INTO LIP MODE. ALL THREE TIMES THE MESSAGE OCCURRED WHEN THE VEHICLE WAS STARTED, BATTERY DEPLETED, AND GAS ENGINE RUNNING. DRIVABILTY WAS AN ISSUE AS THE CAR WAS IN LIMP MODE AND WOULD NOT ACCELERATE PROPERLY. MY CAR WAS TAKEN TO THE DEALER, TWICE. I WAS TOLD BY JAY TOWNSEND, DISTRICT MANAGER AFTERSALES CHEVROLET, THAT THIS IS NORMAL OPERATION AND HE POINTED TO A BULLETIN. HE SAID THERE IS NO FIX, BUT THAT GOING INTO LIMP MODE SPONTANEOUSLY WAS A " VEHICLE CHARACTERISTIC ". IT IS ILLOGICAL THAT AN ERROR MESSAGE POPPING UP IS NORMAL "VEHICLE CHARACTERISTICS" AND THAT GOING INTO LIMP MODE IS NORMAL. THIS IS A BIG PROBLEM THAT GM SEEMS WILLING TO ACCEPT. OBVIOUSLY SOME PARAMETERS BEING BROKEN IS SETTING OFF THE WARNING MESSAGE, BUT GM DOESN'T WANT TO ADDRESS THIS. INSTEAD THEY ARE STATING IT IS NORMAL OPERATION. SOMEONE IS GOING TO BE HURT BECAUSE OF SUDDEN REDUCTION OF POWER AND GM'S DELIBERATE DENIAL TO FIX THE PROBLEM. I DON'T WANT THIS TO BE ME OR MY FAMILY.

NHTSA ODI #10874176

56,000 miles · Jun 3, 2016

Electrical System

TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. WHILE DRIVING AT AN UNKNOWN SPEED, THE INSTRUMENT PANEL BECAME INOPERABLE WITHOUT WARNING. AS A RESULT, THE CONTACT WAS UNABLE TO DETERMINE THE AMOUNT OF FUEL THAT WAS INSIDE THE VEHICLE AND THE SPEED. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAI…

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NHTSA ODI #10872363

67,000 miles · May 26, 2016

Electrical SystemPower Train

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THE VOLT WAS PURCHASED IN NOVEMBER OF 2012: IN / AROUND JUNE OF 2013 A WARNING LIGHT CAME ON AND IT WAS TAKEN INTO THE LOCAL DEALER (WHERE IT WAS PURCHASED) IT WAS FOUND TO HAVE A LEAKING COOLANT SYSTEM FOR THE PRIMARY ELECTRIC BATTERY (LITHIUM ION BATTERY). THEY COULD NOT FIND THE LEAK SO THEY REFILED THE SYSTEM AND INCLUDED A FLUORESCENT DYE AND RETURNED IT TO ME (THE AMOUNT OF COOLANT WAS ~7 LITERS). 12 MONTHS LATER (PLUS OR MINUS A FEW WEEKS) IN 2014, THE SAME LIGHT CAME ON, IT WAS AGAIN SERVICED (THEY CLAIMED TO HAVE FIXED THE LEAK) AND IT WAS RETURNED TO ME (~7 LITERS COOLANT). 12 MONTHS LATER (PLUS OR MINUS A FEW WEEKS) IN 2015 AGAIN THE LIGHT CAME ON, THIS TIME A SUBSTANTIAL PART OF THE COOLANT SYSTEM WAS REPLACED AROUND THE LITHIUM ION BATTERIES (CLAIMED TO HAVE FOUND A FEW LEAKY CONNECTIONS). THE VEHICLE WAS AGAIN RETURNED TO ME (~ALL KNEW COOLANT). 12 MONTHS LATER (PLUS OR MINUS A FEW WEEKS) IN NOW 2016 THE SAME LIGHT HAS COME ON YET AGAIN AND IT WILL BE RETURNED TO THE DEALER FOR REPAIR YET AGAIN. LEADING TO THE WARNING LIGHT THE CAR'S FAN RUNS LONGER AND LONGER WHILE CHARGING (ITS TRYING TO COOL DURING CHARGING) AND THE AC STOPS WORKING / BLOWING COLD. THE LIGHT USUALLY COME ON SHORTLY AFTER STARTING. ATTEMPTS ARE CURRENTLY BEING MADE TO CONTACT A CHEVROLET VOLT / ELECTRIC CAR ADVISOR TO WORK WITH THE CHEVROLET ZONE MANAGER ON FIXING / REPAIR THIS VEHICLE. THIS IS NOT ONLY AN OBVIOUS MANUFACTURING DEFECT, WHICH THE DEALER CLEARLY CAN NOT REPAIR. BUT ALSO, A MAJOR SAFETY CONCERN, IF THEY WARNING LIGHT FAILED AND THE BATTERY OF THIS CAR OVERHEATED IT WOULD LIKELY CAUSE AN INTENSE FIRE (ITS A LARGE LITHIUM ION BATTERY). FURTHERMORE, THEY COOLANT BEING RELEASED BY THIS VEHICLE IS A SUBSTANCE MONITORED BY THE EPA. THIS IS AGAIN A GENUINE MANUFACTURING SAFETY DEFECT AND NEEDS TO BE RESOLVED OR THE VEHICLE DECLARED A LEMON.

NHTSA ODI #10870954

65,000 miles · May 20, 2016

Air BagsStructureCrashInjury

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I WAS TRAVELING ON A STRAIGHT CITY STREET WHEN I WAS STRUCK BY A VEHICLE COMING OFF A SIDE STREET THAT HAD LOST CONTROL OF THEIR CAR. I WAS HIT ON THE DRIVERS SIDE DOOR. I WAS GOING ABOUT 25 MPH. I HIT MY HEAD ON THE DOOR FRAME ABOVE THE DRIVERS SIDE WINDOW. THE SIDE AIR BAG DID NOT DEPLOY. I WAS TAKEN TO THE HOSPITAL WHERE I HAD A CT SCAN OF MY HEAD AND NECK PERFORMED. I HAD A SLIGHT CONCUSSION (MEMORY LOSS). HAD HEAD AND NECK PAIN AFTER THE ACCIDENT. MY CAR WAS A TOTAL LOSS.

NHTSA ODI #10870046

12,250 miles · May 2, 2016

Unknown Or Other

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IT ALL STARTED ON DECEMBER 16TH 2015, I HAD BOUGHT THE CAR CERTIFIED PRE-OWNED WITH 12K MILES ON IT. THE CAR HAS BEEN PLAGUED WITH ISSUES SINCE DAY ONE.. THE ISSUES RANGE FROM LITTLE ELECTRICAL ISSUES, TO MAJOR SAFETY CONCERNS, ALL OF WHICH TAKING MONTHS TO REPAIR. THE FIRST ISSUES WERE ISSUES WHERE THE KEY FOB COULD NOT BE FOUND, THE CAR WOULD NOT RECOGNIZE THE KEYS WHEN YOU GOT IN AND AT TIMES YOU COULD NOT TURN OFF THE CAR. THEY REPLACED THE KEYS OVER A DOZEN TIMES, AND REPLACED THE CENTRAL COMPUTER TWICE. SHORTLY AFTER THIS THE STEERING COLUMN FAILED, THIS HAPPENED THREE TIMES, WHERE I COULD NOT STEER THE CAR, OR THE WORM GEAR RANDOMLY WOULD MISS TEETH.. THEY REPLACED THE COLUMN, WORM GEAR, AND RACK EACH TIME. THERE ARE ALSO ISSUES WITH THE CHARGE PORT DOOR NOT RELEASING, AS WELL AS A FEW TIMES WHERE THE CHARGE PORT SHORTED OUT MY HOUSE, AND CHARGING UNIT REQUIRING BOTH THE PORT AND THE CHARGER ITSELF TO BE REPLACED. NEXT WAS A BROKEN EXHAUST MANIFOLD, WHERE THE CAR WOULD LEAK EXHAUST INTO THE CAR THROUGH THE HEAT VENTS, THEY REPLACED THE MANIFOLD, AND FULL EXHAUST EVENTUALLY DUE TO RANDOM LEAKS IN THE EXHAUST.. NEXT WAS MPG, ONCE THE WEATHER GOT COLD I AM UNABLE TO GET BETTER THAN 12MPG, WHICH GM INDICATES IS NORMAL.. THE EPA STICKER INDICATED 30MPG CITY, I AM GETTING BETWEEN 9 AND 12, GM WILL NOT REMEDY THIS ISSUE, INDICATING IT IS NORMAL.. NEXT WAS THE CATALYTIC CONVERTER, WHICH GM INDICATED DUE TO THE NEW EXHAUST THAT THE OLD CAT WAS BROKEN IN THE PROCESS.. NEXT WAS AIRBAGS, THE SYSTEM IN THE CAR WOULD NOT PICKUP THE PASSENGER IN THE CAR AND WOULD AT RANDOM TURN OFF THE PASSENGER AIR BAG.. APPARENTLY THERE IS A SOFTWARE UPDATE TO FIX THIS ISSUE. NEXT WAS THE BRAKES, WHICH STARTED STICKING, WHICH THEY INDICATE SINCE THERE IS NO CODE THEY CAN'T FIX THEM, I ADJUSTED THE CABLE MYSELF AND RESOLVED THE ISSUE. I HAVE ALL THE RECORDS AND WILL GLADLY SEND THEM TO NHTSA

NHTSA ODI #10862460

150,000 miles · Apr 6, 2016

Seat BeltsUnknown Or Other

2012 VOLT CHARGER HAS BURNED MY OUTLET, AND MY MELTED IT AND IT HAS BEEN REPLACED TWICE. MY SEAT BELT BUCKLE HAS BROKEN.

NHTSA ODI #10853865

58,000 miles · Mar 19, 2016

StructureWheels

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WHEELS: ORIGINAL EQUIPMENT TIRE WITH 5/32 TREAD, ABOUT 58,000 MILES, NOTICED REDUCED TIRE PRESSURE 3/15/16, FILLED TIRE; FILLED AGAIN 3/18/16 TWICE, ABOUT AN HOUR APART, BECAME TOTALLY FLAT. SIDE OF TIRE, TWO REPAIR FACILTIES INDICATE IT CAN NOT BE REPAIRED. HAVE REST OF ORIGINAL EQUIPMENT TIRES ON CAR, WERE VERY RECENTLY ROTATED, AND TIRE PRESSURE CHECKED BEFORE 3/15/16. THOUGHT IT MAY HAVE BEEN VANDALIZED, DEALER IN MIDDLETON SAYS IT WAS NOT. ALL TIRES ON CARE ARE ORIGINAL EQUIPMENT. LOSS OF TIRE PRESSURE BEGAN WHILE STATIONERY, FILLED TIRE, BUT DID NOT HOLD AIR WHETHER IN MOTION, BEING DRIVEN ON HIGHWAY OR CITY STREET. IS AT A DEALERSHIP IN MIDDLETON, WI NOW. I PURCHASED THE 2012 VOLT IN 2/2013, NEVER TITLED, FROM A DEALER IN ELK CITY, OK AFTER MUCH RESEARCH. IN READING ABOUT VOLT, THERE WAS NO INFORMATION ABOUT A BACK UP CAMERA. THE CAR REALLY NEEDS A BACK UP CAMERA; I HAVE HIT ANOTHER CAR PARKED ON MY OWN DRIVEWAY WHILE BACKING OUT, AND IN JANUARY 2016 I HIT A MOVING SUV AT BEST BUY PARKING LOT, DELAFIELD, WI. PERSON DRIVING HIS CAR SAID HE DID NOT LOOK FOR BACK UP LIGHTS FOR BREAK LIGHTS, I HAD CHECKED TO SEE IF CAR MAY BE APPROACHING AND DID NOT SEE SUV. I FILED WITH THE DOT, WI, SINCE IT WAS LIKELY IF POLICE WERE CALLED IT WOULD BE STATED IT WAS A PRIVATE LOT. I HAVE ALSO HAD MY CAR TOWED, THE BLACK RUBBER FRONT THAT IS FLEXIBLE IS EASILY DAMAGED, AND ESPECIALLY BY A TOW TRUCK BUT CAN BE EASILY DAMAGED IN WINTER WITH SNOW/ICE, OR GENERALLY IN PARKING LOTS IF THERE ARE CONCRETE GUIDES TO STOP CAR WHEN PULLING INTO SPOT.

NHTSA ODI #10850556

20,000 miles · Feb 5, 2016

Electronic Stability Control (esc)Power TrainService Brakes

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TL* THE CONTACT OWNS A 2012 CHEVROLET VOLT. THE CONTACT STATED THAT THE BRAKE PEDAL WAS APPLIED AND DID NOT RESPOND NUMEROUS TIMES. THE FAILURE OCCURRED INTERMITTENTLY. WHILE DRIVING, THE TRANSMISSION BRACKETS FRACTURED AND CAUSED THE TRANSMISSION TO BECOME DETACHED. THE VEHICLE WAS TOWED TO A DEALER FOR INSPECTION AND REPAIR. THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 13V271000 (ELECTRONIC STABILITY CONTROL, SERVICE BRAKES). THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 20,000.

NHTSA ODI #10824475

44,000 miles · Jan 22, 2016

Electrical SystemEngineFuel/propulsion System

THE CAR SHUT OFF COMPLETELY WHILE I WAS DRIVING 65 MPH ON THE FREEWAY AND HAD TO BE TOWED INTO THE DEALER FOR REPAIR. IT WAS DETERMINED BY THE DEALER THAT AN UNDERHOOD FUSE SHORTED OUT AND BURNED INTO THE VEHICLE BATTERY CHARGING SYSTEM CAUSING THE CAR TO SHUT DOWN WHILE DRIVING. A MAJOR SAFETY HAZARD AS THIS COULD HAVE CAUSED A…

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NHTSA ODI #10821702

Official recalls

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

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

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.

13V271000 · Electronic Stability Control (esc); Service Brakes

Jun 27, 2013

General Motors (GM) is recalling certain model year 2012 Chevrolet Volt vehicles manufactured March 1, 2012, through April 17, 2012. Due to a brake pressure modulator valve problem, the vehicles do not relieve brake pressure from the front brakes during an anti-lock brake system (ABS), electronic stability control (ESC), or traction control event. One or both front brakes may lock up and not release. Thus, these vehicles fail to conform to Federal Motor Vehicle Safety Standards (FMVSS) No. 126, "Electronic Stability Control Systems"' and No. 135, "Light Vehicle Brake Systems."

Consequence & remedy

Consequence: If the brakes lock up it could cause a loss of steering control and/or a lengthened distance needed to stop the vehicle, increasing the risk of a crash.

Remedy: General Motors will notify owners, and dealers will install a new brake pressure modulator valve free of charge. The recall is expected to begin July 12, 2013. Owners may contact Chevrolet at 1-866-694-6546. GM's recall number is 13184.

Additional source detail variants (2)

Service Brakes

Consequence: If the brakes lock up it could cause a loss of steering control and/or a lengthened distance needed to stop the vehicle, increasing the risk of a crash.

Remedy: General Motors will notify owners, and dealers will install a new brake pressure modulator valve free of charge. The recall is expected to begin July 12, 2013. Owners may contact Chevrolet at 1-866-694-6546. GM's recall number is 13184.

Electronic Stability Control (esc)

Consequence: If the brakes lock up it could cause a loss of steering control and/or a lengthened distance needed to stop the vehicle, increasing the risk of a crash.

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

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.

PE11037 · Post-Crash Ev Fire Hazard

Opened Nov 25, 2011 · Closed Jan 20, 2012

Status: closed (inferred from source dates) · Electrical SYSTEM:12V/24V/48V Battery

The subject vehicles, which employ emerging technology, are range-extended electric vehicles that utilize a high voltage (HV) battery to provide energy for propulsion. The HV battery is lithium-ion based technology that has a nominal full charge of 390 VDC, a 16 kWh capacity, and a control system that incorporates liquid (antifreeze) cooling and various electronic devices (control modules, sensors, wiring, etc) to monitor and manage the HV battery. The HV battery, portions of the cooling system, and the control system are contained within a common enclosure.During an NCAP oblique side pole impact test conducted by NHTSA in May 2011, the pole struck and deformed the sill plate under the driver's door at a location where there is a structural member. The lateral member displaced inward, pierced the HV battery enclosure and battery, and caused a battery coolant leak. Thereafter, the Agency conducted a rollover test (the rollover test consists of four 90-degree rotate-and-hold movements about the vehicle's longitudinal axis). In that test, the HV battery and electronics were exposed to coolant that leaked as a result of the crash. The vehicle fire that occurred three weeks later and the additional testing NHTSA conducted are discussed in a report titled 2011 Chevrolet Volt Battery Fire Incident Report a copy of which is available in the public file. The report indicates that intrusion induced coolant leakage, and subsequent rollover that saturates electronic components, were the only test conditions which resulted in a subject vehicle HV battery fire.GM announced its intention to conduct a free-of-charge customer satisfaction campaign (CSP) on the subject vehicles on January 5, 2012. The action affects 14,735 vehicles produced prior to December 21, 2011. The CSP addresses three areas related to the issue under investigation. The first involves a modification/strengthening of the structure of the vehicle in the area where battery intrusion occurred in the May 2011 test. The second involves adding a sensor that detects excessive HV battery coolant loss, and control system software that then alerts the driver and prevents recharging of the HV battery. When the battery cannot be recharged, it will be depleted to a lower energy state as the vehicle continues to operate on the internal combustion engine. Lastly, a tamper-proofing device will be added to the system to prevent consumers from adding coolant. GM discusses these revisions in its response to an Information Request (IR) issued by NHTSA, noting that vehicles produced in calendar year 2012 and later will be manufactured to this condition.In December 2011, and at the same test facility, NHTSA repeated the May 2011 side impact test using a model year 2012 Volt modified to the structural condition described in the CSP. The test did not produce intrusion of the HV battery, a coolant leakage, or a fire (see test 7611, available at www.nhtsa.gov/Research/Databases+and+Software). In its IR response, GM describes four (4) additional side impact tests of modified subject vehicles it recently conducted using various build configurations and impact speeds (including higher speeds). GM reports that none produced HV battery intrusion, coolant leakage, or a fire.As noted in the complaint counts above, ODI has not identified a crash occurring in consumer's use of the vehicle that has resulted in a vehicle fire, or produced coolant leakage. ODI notes that side impact crashes with pole-like structures, such as would strike the sill plate, occur fairly infrequently, and such crashes with rollovers are even less frequent. A defect trend has not been identified at this time, and further investi