IllustrationThe infotainment screen suddenly froze and blasted an extremely loud static noise that nearly caused an accident. It has a lot of problems with freezing
2019 Chevrolet Bolt Ev
Owner reports · Recalls · Investigations
More warning signs than most Bolt Ev years
Owner complaints for the 2019 Chevrolet Bolt Ev are substantially higher than the model-year median of 77.5.
About this comparison →How this year compares
Owner complaints by model year
Compare all Bolt Ev years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 37 of 175 reports include usable mileage. There isn’t enough coverage to show a useful chart.
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 85 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Steering. Review the 45 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Fuel/propulsion System. Review the 44 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
2 crash reports10 fire reports2 injury reports
Unknown Or Other complaints
20 reportsThis is for the recall N222383791 (SEATBELT PRETENSIONER FIRE) that was issued on 12/15/2022. The Remedy has been identified as dealers installing metal foil on the carpet near the pretensioner exhaust. Certain vehicles will also need a pretensioner cover installed. It was said that a remedy would be available at dealerships aro…
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This is for the recall N222383791 (SEATBELT PRETENSIONER FIRE) that was issued on 12/15/2022. The Remedy has been identified as dealers installing metal foil on the carpet near the pretensioner exhaust. Certain vehicles will also need a pretensioner cover installed. It was said that a remedy would be available at dealerships around 1/30/2023. It is now 3/10/2033 nearly three months after the remedy was identified, and it's still not possible to get it repaired at dealerships. This complaint is that the manufacturer hasn't remedied this safety recall in a timely manner.
Parking brake engages sporadically and automatically and sometime produce loud grinding noise in front of the car. Passenger rear middle seatbelt is not retracting automatically and is not self adjusting. Reverse camera has changed from a full screen view to a smaller screen with wide bars left and bottom of the image that now…
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Parking brake engages sporadically and automatically and sometime produce loud grinding noise in front of the car. Passenger rear middle seatbelt is not retracting automatically and is not self adjusting. Reverse camera has changed from a full screen view to a smaller screen with wide bars left and bottom of the image that now is hard to see. I believe this changed due to a software update with no warning. Dealer requests me to pay for this issues to be inspected. I believe this are safety concerns and Chevy should recall them.
Last week, we had our 2019 Bolt serviced at a dealership - they had "replaced drive motor battery high voltage manual disconnect" and did some sort of check on the "high voltage battery." We had also showed them a message we got from On Star that an "issue had been detected with the electric drive unit" and get it serviced withi…
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Last week, we had our 2019 Bolt serviced at a dealership - they had "replaced drive motor battery high voltage manual disconnect" and did some sort of check on the "high voltage battery." We had also showed them a message we got from On Star that an "issue had been detected with the electric drive unit" and get it serviced within seven days. We bought the Bolt in the Fall of 2019 and it has less than 5,000 miles on it. We are on the waitlist for the LIB recall. 6 days after getting the car back from service, my wife was driving the car when suddenly the car went completely dead. Fortunately, she was not on the highway where she could have been killed, but on a quiet suburban street. I came over to assist and we arranged to have it towed to the Chevy dealership. After the Bolt stopped running, my wife again received the message saying "issue had been detected with the electric drive unit." They are now working on the Bolt. They are telling us that the problems are (1) the 12 volt battery has low state charge power and needed to be replaced and (2) there is a "faulty accessory power module" which they have ordered a part for. They do not think it is LIB related. They are not sure what "electric drive unit" means and will need to check with Chevrolet.
Chevrolet has yet not made the replacement battery available for my 2019 Bolt. I received a letter in mid November saying my car was on the "priority list". I attempted to make an appointment around Thanksgiving of 2021 and now, 8 weeks later, they say the replacement battery is still not available and the dealer has no idea w…
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Chevrolet has yet not made the replacement battery available for my 2019 Bolt. I received a letter in mid November saying my car was on the "priority list". I attempted to make an appointment around Thanksgiving of 2021 and now, 8 weeks later, they say the replacement battery is still not available and the dealer has no idea when they'll get it. The Chevy "concierge" has not been helpful at all. They don't know either when a battery will be available and send me to talk to the the dealer. The dealer says that Chevy has not given them any estimate about when the battery will be available. For obvious reasons, I feel the car is unsafe.
Vehicle was driving in DRIVE mode, and began to surge as if it was regenerating hard (Felt as if downshifted quickly in a manual), which was odd since it was in DRIVE not LOW. Pulled over and placed the car in PARK. Car began to smoke (First noticed from the front underbody). Exited the vehicle and got far away. Called 911 and …
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Vehicle was driving in DRIVE mode, and began to surge as if it was regenerating hard (Felt as if downshifted quickly in a manual), which was odd since it was in DRIVE not LOW. Pulled over and placed the car in PARK. Car began to smoke (First noticed from the front underbody). Exited the vehicle and got far away. Called 911 and gave the dispatcher the information. The car lit on fire. Called 911 let them know the fire had begun. Car fully burned by the time the fire department was able to put out the fire. -What component or system failed or malfunctioned, and is it available for inspection upon request? Unknown, and it will be available for inspection if requested. -How was your safety or the safety of others put at risk? The fire could have easily killed someone and having to stand on the shoulder of a multilane highway next to a blaze was dangerous. -Has the problem been reproduced or confirmed by a dealer or independent service center? There is no vehicle left after the fire (Total loss confirmed by insurance) -Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Insurance Co. has. GM will be -Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? No warning lights appeared at any time
Within the first 20 months of ownership of my vehicle - I became aware of multiple reported fires due to the battery on other similar 2019 Chevy Bolts (and other years) where (like my vehicle) had batteries manufactured in Korea which subsequently found to contain a number of defects which pose a fire risk. For many months and c…
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Within the first 20 months of ownership of my vehicle - I became aware of multiple reported fires due to the battery on other similar 2019 Chevy Bolts (and other years) where (like my vehicle) had batteries manufactured in Korea which subsequently found to contain a number of defects which pose a fire risk. For many months and currently I have had harsh limitations placed on how far I am able to drive my vehicle due to requested safety measures GM is requesting (to NOT charge over 90% and to NOT let the vehicle go below 30% - effectively limiting range by 60%). Additionally, we are not able to charge the vehicle overnight and must remove the vehicle from the garage after charging due to fire risk. This is unacceptable! I requested a buyback from GM or MSRP swap but was denied. There is currently NO FIX available and it's unclear to when if this will be fully resolved. I am afraid to use my vehicle as my charger is located in my garage where my sons bedroom is directly above the garage. My vehicle poses a great risk to my families safety.
I have a Chevrolet Bolt EV that was recalled due to risk of battery fires. It took many months of waiting and being unable to charge the car fully, but a fix was issued that scanned the battery and added monitoring software. Two fires have since occurred on 2019s with the fix applied. So now GM has said to follow these guideline…
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I have a Chevrolet Bolt EV that was recalled due to risk of battery fires. It took many months of waiting and being unable to charge the car fully, but a fix was issued that scanned the battery and added monitoring software. Two fires have since occurred on 2019s with the fix applied. So now GM has said to follow these guidelines until they can find and fix a separate issue. My car is unusable under the guidance that GM has issued, which includes no charging overnight, no parking inside, no charging to 100% and try not to run below 70 miles of charge. There is no timeline for the repair for the recall and I have no confidence that they will fix the batteries appropriately since they are saying they will replace parts of the batteries rather than whole batteries, but as I understand it, new and old battery parts aren't safe to mix. The car is unusable, unsafe and a fire hazard on my property despite having less than 15k miles on it, but I cannot get GM to give me a loaner or let me park it at a dealership while I wait four or more weeks for a review on a potential buy back case.
There is an open recall on my vehicle, but Chevy NEVER notified me about it. I received an email about the initial recall in November 2020, but found out about this most recent recall ONLY from the Chevy Bolt EV Facebook group I am part of. Searching my VIN on the Chevy website did not yield any results for a couple of weeks (no…
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There is an open recall on my vehicle, but Chevy NEVER notified me about it. I received an email about the initial recall in November 2020, but found out about this most recent recall ONLY from the Chevy Bolt EV Facebook group I am part of. Searching my VIN on the Chevy website did not yield any results for a couple of weeks (now it says that there is an open recall but no remedy yet), but now searching the VIN and looking at the battery sticker information tells me that I am, indeed, part of this recall and have never heard anything directly from Chevy. Many others in the group reported receiving an email but I have not received any communication. This seems very suspect and very dangerous. I purchased the car used from a dealer but since I received the original Nov 2020 recall information I know that Chevy has my information, they just didn't contact me for some reason.
I was sold a vehicle that is 30 times more likely to catch fire than any gas propelled vehicle (https://allev.info/2021/07/early-chevy-bolts-much-more-likely-to-catch-fire-than-a-gas-car/). To date, GM's solutions have been unacceptable. First, hobbling the car so that it performs at 90% capacity was offered, though I did not ag…
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I was sold a vehicle that is 30 times more likely to catch fire than any gas propelled vehicle (https://allev.info/2021/07/early-chevy-bolts-much-more-likely-to-catch-fire-than-a-gas-car/). To date, GM's solutions have been unacceptable. First, hobbling the car so that it performs at 90% capacity was offered, though I did not agree to purchase 90% of an automobile. Then it was "fixed" and deemed safe, yet more fires have occurred within the supposedly repaired vehicles. GM's current solution is to again limit the battery charge to 90% (owner's responsibility), to not leave the car unattended while charging (it can take many hours to charge, so this is an onerous and ludicrous ask), and, remarkably, they've stated that the vehicle should not be left in or near a structure in case of fire. Shall I just chance burning down the local farmer's field or forest that I'm forced to park it in, then? I've requested a buy back by Chevrolet and was refused. This is a preposterous situation that puts me, my passengers, and others around me in danger.
Official recalls
623V845000 · Seat Belts:pretensioner; Structure:body:roof And Pillars
Dec 14, 2023
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. This recall includes certain vehicles previously repaired incorrectly under NHTSA recall number 22V-930. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence & remedy
Consequence: A fire increases the risk of injury.
Remedy: Dealers will inspect both front seat belt pretensioners and, if necessary, install metal foil at the carpet near the pretensioner exhaust. Certain vehicles will also need a pretensioner cover installed. Repairs will be performed free of charge. Owner notification letters were mailed January 24, 2024. These vehicles were previously recalled for this same issue under recall number 22V-930 and will need to have the new remedy performed. Owners may contact GM EV Concierge at 1-833-EVCHEVY (1-833-382-4389) (TTY 711 / 1-800-833-2438) or Customer Service at 1-800-222-1020. GM's number for this recall is N232421970.
Additional source detail variants (2)
Seat Belts:pretensioner
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. This recall includes certain vehicles previously repaired incorrectly under NHTSA recall number 22V-930. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence: A fire increases the risk of injury.
Remedy: Dealers will inspect both front seat belt pretensioners and, if necessary, install metal foil at the carpet near the pretensioner exhaust. Certain vehicles will also need a pretensioner cover installed. Repairs will be performed free of charge. Owner notification letters were mailed January 24, 2024. These vehicles were previously recalled for this same issue under recall number 22V-930 and will need to have the new remedy performed. Owners may contact GM EV Concierge at 1-833-EVCHEVY (1-833-382-4389) (TTY 711 / 1-800-833-2438) or Customer Service at 1-800-222-1020. GM's number for this recall is N232421970.
Structure:body:roof And Pillars
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. This recall includes certain vehicles previously repaired incorrectly under NHTSA recall number 22V-930. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence: A fire increases the risk of injury.
Remedy: Dealers will inspect both front seat belt pretensioners and, if necessary, install metal foil at the carpet near the pretensioner exhaust. Certain vehicles will also need a pretensioner cover installed. Repairs will be performed free of charge. Owner notification letters were mailed January 24, 2024. These vehicles were previously recalled for this same issue under recall number 22V-930 and will need to have the new remedy performed. Owners may contact GM EV Concierge at 1-833-EVCHEVY (1-833-382-4389) (TTY 711 / 1-800-833-2438) or Customer Service at 1-800-222-1020. GM's number for this recall is N232421970.
22V930000 · Seat Belts:pretensioner; Structure:body:roof And Pillars
Dec 15, 2022
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence & remedy
Consequence: A vehicle fire can increase the risk of injury.
Remedy: Dealers will install metal foil at the carpet near the pretensioner exhaust, and install a pretensioner cover as necessary, free of charge. Owner notification letters were mailed between January 23, 2023 and April 25, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222383790.
Additional source detail variants (2)
Seat Belts:pretensioner
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence: A vehicle fire can increase the risk of injury.
Remedy: Dealers will install metal foil at the carpet near the pretensioner exhaust, and install a pretensioner cover as necessary, free of charge. Owner notification letters were mailed between January 23, 2023 and April 25, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222383790.
Structure:body:roof And Pillars
General Motors, LLC (GM) is recalling certain 2017-2023 Chevrolet Bolt EV vehicles. After a crash with seat belt pretensioner deployment, the pretensioner exhaust may ignite carpet fibers near the B-pillar, causing a fire.
Consequence: A vehicle fire can increase the risk of injury.
Remedy: Dealers will install metal foil at the carpet near the pretensioner exhaust, and install a pretensioner cover as necessary, free of charge. Owner notification letters were mailed between January 23, 2023 and April 25, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N222383790.
21V560000 · Electrical System:propulsion System:traction Battery
Jul 23, 2021
General Motors LLC (GM) is recalling certain 2017-2019 Chevrolet Bolt EV vehicles previously recalled under NHTSA recall number 20V-701. The high voltage battery could catch fire when charged to full or nearly full capacity.
Consequence & remedy
Consequence: A battery fire increases the risk of injury.
Remedy: Owners are advised to take the following interim steps: Activate either the Hill Top Reserve (2017 and 2018 models) or Target Charge Level (2019 models) feature in their vehicle to limit the charge level to 90%, charge their vehicle more frequently, avoid depleting the battery to 70 miles range remaining, park outside after charging, and do not charge the vehicle indoors overnight. Defective battery modules will be replaced by GM, free of charge. Interim notification letters notifying owners of the safety risk were mailed on August 13, 2021. Owner notification letters were mailed on August 13, 2021. Owners may contact the Bolt EV Concierge Team at 1-833-382-4389. GM's number for this recall is N212343880.
20V701000 · Electrical System:propulsion System:traction Battery
Nov 13, 2020
General Motors LLC (GM) is recalling all 2017-2018 and certain 2019 Chevrolet Bolt EV vehicles. The high voltage battery could catch fire when charged to full or nearly full capacity.
Consequence & remedy
Consequence: A battery fire increases the risk of injury.
Remedy: This recall has been superseded by recall number 21V-560. Vehicles previously repaired under 20V-701 will still need to have the new remedy under recall 21V-560. GM will notify owners, and as an interim repair, beginning on November 17, 2020, dealers will reprogram the hybrid propulsion control module 2 (HPCM2) to limit the full charge to 90%, free of charge. Owners are advised to activate either the Hill Top Reserve (2017 and 2018 models) or Target Charge Level (2019 models) feature in their vehicle to limit the charge level to 90%, or park outside, until the software update is completed. Owners were notified of the interim repair beginning November 17, 2020. The second notice was mailed on May 11, 2021. Owners may contact the Bolt EV Concierge Team at 1-833-382-4389. GM's number for this recall is N202311730.
20V184000 · Latches/locks/linkages:doors:latch
Mar 26, 2020
General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Bolt EV vehicles. The door-handle cable inside the rear doors may be too long, allowing contact with the window when it is opened, possibly damaging the cable. A damaged cable may cause the rear door to open unintentionally when the rear window is opened. Additionally, it may cause the rear inside door handle to not work.
Consequence & remedy
Consequence: If the rear door opens while driving, or the door handle fails to open the rear door, there is an increased risk of injury to the rear passengers.
Remedy: GM will notify owners, and dealers will replace the rear inside door-handle cables, free of charge. The recall began April 17, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202298320.
18V576000 · Service Brakes, Hydraulic:foundation Components:disc:caliper
Aug 30, 2018
General Motors LLC (GM) is recalling certain 2018-2019 Chevrolet Equinox, Impala, Cruze, Volt and Bolt EV vehicles, GMC Terrain vehicles, Buick Lacrosse and Regal vehicles, Cadillac XTS and XTS Professional vehicles and 2018 Chevrolet Malibu vehicles. The rear brake caliper pistons may have an insufficient coating causing gas pockets to form, potentially reducing rear brake performance.
Consequence & remedy
Consequence: A reduction of braking performance can increase the risk of a crash.
Remedy: GM will notify owners, and dealers will bleed the vehicle's brake system, free of charge. The recall began October 11, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18279.
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
2DP22005 · 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.
PE20016 · Electric Vehicle Battery Fires
Opened Oct 9, 2020 · Closed Feb 7, 2022
Status: closed (inferred from source dates) · Electrical System:propulsion System; Electrical System:propulsion System:traction Battery
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Additional source detail variants (6)
Electrical System:propulsion System
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Electrical System:propulsion System
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Electrical System:propulsion System
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Electrical System:propulsion System:traction Battery
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Electrical System:propulsion System:traction Battery
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800
Electrical System:propulsion System:traction Battery
In October 2020, the Office of Defects Investigation (ODI) opened a Preliminary Evaluation (PE) on 2017-2020 Model Year (MY) Chevrolet Bolt vehicles based on complaints received alleging that the vehicles caught fire under the seating area while parked and unattended. At the time, ODI had received 2 Vehicle Owner Questionnaires (VOQs) and several field reports. All complaints alleged vehicles caught fire during or after electrical charging.ODI's review found vehicle thermal events occurred during and/or at the end of the battery module charging cycle. The information learned from NHTSA and General Motors joint vehicle inspections prompted General Motors to file Recall 20V-701 on April 29, 2021. The remedy for this recall included 1) performing diagnostic procedures to identify and replace potentially defective battery cell-module assemblies and 2) installing onboard diagnostic software, designed to detect and warn owners regarding potential issues related to changes in battery module performance over time. Until this interim remedy became available for all affected vehicles, General Motors instructed their customers to enable ?Hilltop Reserve or ?Target Charge Level, based on the vehicle-equipped technology. Enabling these technologies would limit charging capacity of the battery module to a maximum of 90 percent. General Motors then continued to investigate the root cause of these battery cell module thermal events, which would lead them to their long-term recall remedy solution. Utilizing the information obtained from the Recall 20V-701 software update, General Motors and LG Energy Solutions,the supplier of the battery cell module pack along with LG Electronics,determined the root cause of the thermal events to be the result of two simultaneous manufacturing defects occurring in the same battery cell. The defect condition appears to be aggravated by routinely charging the battery to a full or nearly full state of charge after it has been substantially depleted. The two defects, located within the same battery cell module, would cause an internal short within the battery pack, resulting in the thermal events. The manufacturing process was changed to prevent the occurrence of these two defect conditions.On July 24, 2021, General Motors filed a defect information report recalling all 2017-2018 Chevrolet Bolt and certain 2019 Chevrolet Bolt vehicles with design level N2.1 battery cell produced at the LG Ochang, Korea plant. This remedy replaces defective battery cell-modules and will prevent potential thermal events from occurring during and/or at the end of the charge cycle. The recall (21V-560) includes vehicles that were remedied under 20V-701.General Motors continued to review new data after Recall 21V-560 and learned of an incident that occurred outside of the scope of the recall population. Additional analysis led General Motors and LGES to determine that the manufacturing defects defined by Recall 21V-560 were not isolated to one battery manufacturing plant. On August 21, 2021, General Motors filed a defect information report to expand the scope of recall 21V-560. The recall (21V-650) includes all 2019-2022 Chevrolet Bolt EV and 2022 Chevrolet Bolt EUV vehicles. In view of the recall actions being taken by General Motors, ODI is closing this Preliminary Evaluation. NHTSA reserves the right to take additional action if warranted by future circumstances.The ODI reports cited above can be reviewed online at nhtsa.gov under the following identification numbers:11230072, 11425524, 11339878, 11365622, 11364692, 11427180, 11429891, 11374956, 11407212, 11372429, 11425225, 11415800