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Automotive
9 min read
Areas of Expertise :
Automotive, Electrical Engineering, Materials Science, Fire Origin & Cause, Failure Analysis
Published Date:
Last Modified Date:
Jurisdiction:
Federal. Sixth Circuit
The Chevrolet Bolt EV battery litigation arose from reported fire incidents involving high-voltage lithium-ion battery cells used in certain Chevrolet Bolt EV and Chevrolet Bolt EUV vehicles. Vehicle owners alleged that conditions inside individual battery cells could, in rare situations, increase the risk of internal electrical shorting, thermal runaway, and fire. Some reported Chevrolet Bolt fire incidents involved vehicles that were parked and unattended, rather than actively charging.
The class action also included economic loss claims. Plaintiffs alleged diminished vehicle value, reduced vehicle use, inconvenience caused by recall-related charging limits, parking guidance, and extended vehicle downtime The consolidated federal action, captioned In re Chevrolet Bolt EV Battery Litigation, proceeded in the U.S. District Court for the Eastern District of Michigan. The case involved Chevrolet Bolt EV and Bolt EUV vehicles, General Motors recall measures, NHTSA safety review activity, publicly identified battery cell manufacturing conditions, and classwide economic loss claims. The district court granted final approval of a nationwide class settlement on December 22, 2025, although settlement payment administration is currently affected by a pending Sixth Circuit appeal.
Court filings referenced an alleged Chevrolet Bolt EV fire in March 2019, later described in a July 2019 consumer complaint submitted to the National Highway Traffic Safety Administration. Additional Chevrolet Bolt EV fire-related complaints were reported during the summer of 2020. In recall reporting discussed in later court materials, General Motors identified five fire incidents: one in March 2019 and four during the summer of 2020.
As reports continued, owner safety concerns focused on vehicles that allegedly caught fire while parked and unattended. In late August 2020, General Motors began an internal investigation into the Chevrolet Bolt EV battery system to assess possible defect causes.
On October 9, 2020, NHTSA opened preliminary evaluation PE 20-016 to determine whether a safety-related defect existed in the vehicles’ high-voltage battery systems. Early review focused on possible internal lithium-ion battery cell failures rather than external ignition sources, crash damage, or aftermarket modifications.
On December 11, 2020, purchasers and lessees of Chevrolet Bolt EV vehicles filed a federal putative class action. The complaint alleged that certain vehicles contained defective battery cells that created an unreasonable fire risk and caused economic harm. Additional Chevrolet Bolt EV battery class actions were later filed in federal court.
The complaints asserted claims under state consumer protection statutes, express and implied warranty law, and related product liability theories. The allegations focused on manufacturing conditions at the battery cell level rather than vehicle operation or owner maintenance.
On June 1, 2021, the U.S. District Court for the Eastern District of Michigan consolidated eight related actions to coordinate discovery and address overlapping factual and legal issues on a classwide basis.
In 2021, General Motors publicly disclosed that its investigation had identified two rare manufacturing conditions in certain lithium-ion battery cells supplied by LG Energy Solution: a torn anode tab and a folded separator. GM stated that the simultaneous presence of both conditions within the same battery cell could lead to an internal electrical short, increasing the risk of thermal runaway and fire.
GM’s disclosure became part of the factual record used to evaluate internal shorting, thermal runaway, recall scope, and classwide economic loss claims. The disclosure was followed by a substantial expansion of the Chevrolet Bolt EV recall, updated owner safety guidance, interim charging limits, and a broader battery remediation strategy.
The litigation proceeded through pretrial motion practice. On September 30, 2022, the court issued an order addressing threshold issues, including arbitration provisions, the sufficiency of certain claims, and challenges to class allegations. Discovery continued while recall remedies were implemented nationwide.
As the recall program developed, the parties engaged in settlement negotiations. The court conducted an initial class settlement fairness hearing on May 19, 2025. It later held a supplemental fairness hearing on September 29, 2025, to address class administration issues affecting certain vehicle identification numbers.
On December 22, 2025, the court granted final approval of the Chevrolet Bolt EV battery class action settlement. The settlement established a $150 million common fund and provided relief tied to GM’s recall remedies. Eligible claimants generally fell into two payment categories: $700 for vehicles covered by the Battery Replacement Final Remedy and $1,400 for vehicles receiving the Software Final Remedy, with certain former owners or lessees eligible for $700 depending on timing and eligibility.
The settlement materials also addressed warranty treatment for certain battery-replacement scenarios, including an extended eight-year or 100,000-mile limited battery warranty where specified settlement conditions were met. The settlement expressly excluded personal injury and property damage claims, which were not released.
After final approval, the matter moved into settlement administration, including claims review, payment processing, and implementation of settlement benefits. Current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals. The final approval order marked the district court approval stage of the classwide economic loss settlement, while post-approval proceedings continue because of the appeal.
Court:
United States District Court for the Eastern District of Michigan
Case Name:
In re Chevrolet Bolt EV Battery Litigation
Lithium Battery
Battery Fires
Electric Vehicles
Automotive Recall
Automotive Electronics
Electrical Defects
Thermal Analysis and Testing
Fire Cause and Origin Investigations
Product Failure
Damages Calculations
The Chevrolet Bolt EV battery litigation arose from reported fire incidents involving high-voltage lithium-ion battery cells used in certain Chevrolet Bolt EV and Chevrolet Bolt EUV vehicles. Vehicle owners alleged that conditions inside individual battery cells could, in rare situations, increase the risk of internal electrical shorting, thermal runaway, and fire. Some reported Chevrolet Bolt fire incidents involved vehicles that were parked and unattended, rather than actively charging.
The class action also included economic loss claims. Plaintiffs alleged diminished vehicle value, reduced vehicle use, inconvenience caused by recall-related charging limits, parking guidance, and extended vehicle downtime The consolidated federal action, captioned In re Chevrolet Bolt EV Battery Litigation, proceeded in the U.S. District Court for the Eastern District of Michigan. The case involved Chevrolet Bolt EV and Bolt EUV vehicles, General Motors recall measures, NHTSA safety review activity, publicly identified battery cell manufacturing conditions, and classwide economic loss claims. The district court granted final approval of a nationwide class settlement on December 22, 2025, although settlement payment administration is currently affected by a pending Sixth Circuit appeal.
Court filings referenced an alleged Chevrolet Bolt EV fire in March 2019, later described in a July 2019 consumer complaint submitted to the National Highway Traffic Safety Administration. Additional Chevrolet Bolt EV fire-related complaints were reported during the summer of 2020. In recall reporting discussed in later court materials, General Motors identified five fire incidents: one in March 2019 and four during the summer of 2020.
As reports continued, owner safety concerns focused on vehicles that allegedly caught fire while parked and unattended. In late August 2020, General Motors began an internal investigation into the Chevrolet Bolt EV battery system to assess possible defect causes.
On October 9, 2020, NHTSA opened preliminary evaluation PE 20-016 to determine whether a safety-related defect existed in the vehicles’ high-voltage battery systems. Early review focused on possible internal lithium-ion battery cell failures rather than external ignition sources, crash damage, or aftermarket modifications.
On December 11, 2020, purchasers and lessees of Chevrolet Bolt EV vehicles filed a federal putative class action. The complaint alleged that certain vehicles contained defective battery cells that created an unreasonable fire risk and caused economic harm. Additional Chevrolet Bolt EV battery class actions were later filed in federal court.
The complaints asserted claims under state consumer protection statutes, express and implied warranty law, and related product liability theories. The allegations focused on manufacturing conditions at the battery cell level rather than vehicle operation or owner maintenance.
On June 1, 2021, the U.S. District Court for the Eastern District of Michigan consolidated eight related actions to coordinate discovery and address overlapping factual and legal issues on a classwide basis.
In 2021, General Motors publicly disclosed that its investigation had identified two rare manufacturing conditions in certain lithium-ion battery cells supplied by LG Energy Solution: a torn anode tab and a folded separator. GM stated that the simultaneous presence of both conditions within the same battery cell could lead to an internal electrical short, increasing the risk of thermal runaway and fire.
GM’s disclosure became part of the factual record used to evaluate internal shorting, thermal runaway, recall scope, and classwide economic loss claims. The disclosure was followed by a substantial expansion of the Chevrolet Bolt EV recall, updated owner safety guidance, interim charging limits, and a broader battery remediation strategy.
The litigation proceeded through pretrial motion practice. On September 30, 2022, the court issued an order addressing threshold issues, including arbitration provisions, the sufficiency of certain claims, and challenges to class allegations. Discovery continued while recall remedies were implemented nationwide.
As the recall program developed, the parties engaged in settlement negotiations. The court conducted an initial class settlement fairness hearing on May 19, 2025. It later held a supplemental fairness hearing on September 29, 2025, to address class administration issues affecting certain vehicle identification numbers.
On December 22, 2025, the court granted final approval of the Chevrolet Bolt EV battery class action settlement. The settlement established a $150 million common fund and provided relief tied to GM’s recall remedies. Eligible claimants generally fell into two payment categories: $700 for vehicles covered by the Battery Replacement Final Remedy and $1,400 for vehicles receiving the Software Final Remedy, with certain former owners or lessees eligible for $700 depending on timing and eligibility.
The settlement materials also addressed warranty treatment for certain battery-replacement scenarios, including an extended eight-year or 100,000-mile limited battery warranty where specified settlement conditions were met. The settlement expressly excluded personal injury and property damage claims, which were not released.
After final approval, the matter moved into settlement administration, including claims review, payment processing, and implementation of settlement benefits. Current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals. The final approval order marked the district court approval stage of the classwide economic loss settlement, while post-approval proceedings continue because of the appeal.
Electrical and Battery Engineering Expert Witness
Electrical and battery engineering analysis may address lithium-ion battery architecture, Chevrolet Bolt EV high-voltage electrical systems, internal electrical faults, short circuits, and thermal runaway. This type of analysis can explain how an internal cell condition may affect battery safety, charging behavior, diagnostic response, and fire risk.
Materials Science Expert Witness
Materials science analysis may focus on lithium-ion battery cell components, including electrodes, separators, conductive tabs, insulation layers, and cell packaging. In a battery defect claim, this work can address manufacturing tolerances, cell deformation, separator damage, tab defects, and material conditions affecting performance or safety.
Fire Origin and Failure Analysis Expert Witness
Fire origin and failure analysis may examine burn patterns, damage progression, ignition characteristics, fire spread, and physical evidence from a thermal event. In Chevrolet Bolt EV fire claims, this analysis can help evaluate whether the evidence is consistent with an internal battery failure or another ignition source.
Automotive Safety and Recall Expert Witness
Automotive safety and recall analysis may address NHTSA expectations, industry standards, recall procedures, owner notices, interim safety measures, and vehicle remediation programs. This work can include review of charging restrictions, parking guidance, software diagnostics, battery replacement programs, warranty remedies, and recall communications.
Damages and Economic Expert Witness
Damages and economic analysis may address diminished vehicle value, loss of use, out-of-pocket costs, and other alleged economic losses connected to Chevrolet Bolt EV recalls. This work can include review of charging limits, software remedies, battery replacements, vehicle downtime, consumer use restrictions, and the effect of recall remedies on claimed losses.
Publicly Identified Defect Mechanisms
The Chevrolet Bolt EV litigation involved GM’s disclosure of a torn anode tab and folded separator theory. That alleged defect mechanism was part of the record used to evaluate internal shorting, thermal runaway, recall scope, and classwide economic loss claims.
Technical Analysis Across Multiple Disciplines
Battery fire claims may involve electrical engineering, materials science, and fire investigation analysis. The technical record may address lithium-ion battery cell architecture, manufacturing tolerances, internal shorting, thermal runaway, fire origin, and alternative ignition sources.
Recall Programs and Settlement Remedies
The Chevrolet Bolt EV recall program affected the structure of the settlement relief. Charging limits, parking guidance, software diagnostics, battery replacements, warranty treatment, and monetary payments were part of the remedial framework used to address alleged economic losses.
Battery Supplier Manufacturing Practices
The alleged defect theory involved lithium-ion battery cells supplied by LG Energy Solution. Supplier-side manufacturing conditions were part of the defect, causation, allocation, and remediation issues in the litigation.
Economic Loss Claims and Claim Releases
The class settlement addressed economic loss claims tied to alleged diminished value, loss of use, and recall-related inconvenience. Personal injury and property damage claims were expressly excluded from the release, keeping those claims separate from the classwide settlement.
Post-Approval Settlement Administration
Although the district court granted final approval on December 22, 2025, current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals. That post-approval status should be described separately from the district court’s final approval order.
The Chevrolet Bolt EV battery litigation addressed alleged fire risks tied to high-voltage lithium-ion battery cells, internal electrical short theories, and publicly identified battery cell manufacturing conditions. The case developed through NHTSA safety review activity, GM’s internal defect analysis, Chevrolet Bolt EV recall expansion, federal class action consolidation, motion practice, settlement proceedings, and post-approval administration.
The final Chevrolet Bolt EV battery settlement created a $150 million common fund and tied monetary relief to GM’s recall remedies, including battery replacement and software-based diagnostic pathways. Eligible claimants generally fell into payment categories of $700 or $1,400, depending on the applicable final remedy and ownership or lease status. The settlement also separated economic loss claims from personal injury and property damage claims, which were not released.
On December 22, 2025, the district court granted final approval of the settlement. After that order, the matter moved into settlement administration. Current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals.
What caused the Chevrolet Bolt EV battery fire risk according to GM?
General Motors stated that a rare combination of two manufacturing conditions, a torn anode tab and a folded separator within the same lithium-ion battery cell, could result in an internal electrical short and thermal runaway.
Did the Chevrolet Bolt EV battery class action go to trial?
No. The consolidated federal Chevrolet Bolt EV battery class action did not proceed to trial. The district court granted final approval of a nationwide class settlement on December 22, 2025.
What court handled the consolidated Chevrolet Bolt EV battery litigation?
The consolidated federal action proceeded in the U.S. District Court for the Eastern District of Michigan under the caption In re Chevrolet Bolt EV Battery Litigation.
What did the Chevrolet Bolt EV battery settlement provide?
The Chevrolet Bolt EV battery settlement established a $150 million common fund. Eligible claimants generally fell into two payment categories: $700 for vehicles covered by the Battery Replacement Final Remedy and $1,400 for vehicles receiving the Software Final Remedy, with certain former owners or lessees eligible for $700 depending on timing and eligibility.
Did the settlement release personal injury or property damage claims?
No. The settlement expressly excluded personal injury and property damage claims, which were not released.
What role did NHTSA play in the Chevrolet Bolt EV battery matter?
NHTSA opened preliminary evaluation PE 20-016 on October 9, 2020, to assess whether a safety-related defect existed in the high-voltage battery systems of certain Chevrolet Bolt EV vehicles. Regulatory review and recall activity proceeded alongside the civil litigation.
Electrical and Battery Engineering Expert Witness
Electrical and battery engineering analysis may address lithium-ion battery architecture, Chevrolet Bolt EV high-voltage electrical systems, internal electrical faults, short circuits, and thermal runaway. This type of analysis can explain how an internal cell condition may affect battery safety, charging behavior, diagnostic response, and fire risk.
Materials Science Expert Witness
Materials science analysis may focus on lithium-ion battery cell components, including electrodes, separators, conductive tabs, insulation layers, and cell packaging. In a battery defect claim, this work can address manufacturing tolerances, cell deformation, separator damage, tab defects, and material conditions affecting performance or safety.
Fire Origin and Failure Analysis Expert Witness
Fire origin and failure analysis may examine burn patterns, damage progression, ignition characteristics, fire spread, and physical evidence from a thermal event. In Chevrolet Bolt EV fire claims, this analysis can help evaluate whether the evidence is consistent with an internal battery failure or another ignition source.
Automotive Safety and Recall Expert Witness
Automotive safety and recall analysis may address NHTSA expectations, industry standards, recall procedures, owner notices, interim safety measures, and vehicle remediation programs. This work can include review of charging restrictions, parking guidance, software diagnostics, battery replacement programs, warranty remedies, and recall communications.
Damages and Economic Expert Witness
Damages and economic analysis may address diminished vehicle value, loss of use, out-of-pocket costs, and other alleged economic losses connected to Chevrolet Bolt EV recalls. This work can include review of charging limits, software remedies, battery replacements, vehicle downtime, consumer use restrictions, and the effect of recall remedies on claimed losses.
Publicly Identified Defect Mechanisms
The Chevrolet Bolt EV litigation involved GM’s disclosure of a torn anode tab and folded separator theory. That alleged defect mechanism was part of the record used to evaluate internal shorting, thermal runaway, recall scope, and classwide economic loss claims.
Technical Analysis Across Multiple Disciplines
Battery fire claims may involve electrical engineering, materials science, and fire investigation analysis. The technical record may address lithium-ion battery cell architecture, manufacturing tolerances, internal shorting, thermal runaway, fire origin, and alternative ignition sources.
Recall Programs and Settlement Remedies
The Chevrolet Bolt EV recall program affected the structure of the settlement relief. Charging limits, parking guidance, software diagnostics, battery replacements, warranty treatment, and monetary payments were part of the remedial framework used to address alleged economic losses.
Battery Supplier Manufacturing Practices
The alleged defect theory involved lithium-ion battery cells supplied by LG Energy Solution. Supplier-side manufacturing conditions were part of the defect, causation, allocation, and remediation issues in the litigation.
Economic Loss Claims and Claim Releases
The class settlement addressed economic loss claims tied to alleged diminished value, loss of use, and recall-related inconvenience. Personal injury and property damage claims were expressly excluded from the release, keeping those claims separate from the classwide settlement.
Post-Approval Settlement Administration
Although the district court granted final approval on December 22, 2025, current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals. That post-approval status should be described separately from the district court’s final approval order.
The Chevrolet Bolt EV battery litigation addressed alleged fire risks tied to high-voltage lithium-ion battery cells, internal electrical short theories, and publicly identified battery cell manufacturing conditions. The case developed through NHTSA safety review activity, GM’s internal defect analysis, Chevrolet Bolt EV recall expansion, federal class action consolidation, motion practice, settlement proceedings, and post-approval administration.
The final Chevrolet Bolt EV battery settlement created a $150 million common fund and tied monetary relief to GM’s recall remedies, including battery replacement and software-based diagnostic pathways. Eligible claimants generally fell into payment categories of $700 or $1,400, depending on the applicable final remedy and ownership or lease status. The settlement also separated economic loss claims from personal injury and property damage claims, which were not released.
On December 22, 2025, the district court granted final approval of the settlement. After that order, the matter moved into settlement administration. Current class counsel status information states that settlement claims payments are on hold pending an appeal to the Sixth Circuit Court of Appeals.
What caused the Chevrolet Bolt EV battery fire risk according to GM?
General Motors stated that a rare combination of two manufacturing conditions, a torn anode tab and a folded separator within the same lithium-ion battery cell, could result in an internal electrical short and thermal runaway.
Did the Chevrolet Bolt EV battery class action go to trial?
No. The consolidated federal Chevrolet Bolt EV battery class action did not proceed to trial. The district court granted final approval of a nationwide class settlement on December 22, 2025.
What court handled the consolidated Chevrolet Bolt EV battery litigation?
The consolidated federal action proceeded in the U.S. District Court for the Eastern District of Michigan under the caption In re Chevrolet Bolt EV Battery Litigation.
What did the Chevrolet Bolt EV battery settlement provide?
The Chevrolet Bolt EV battery settlement established a $150 million common fund. Eligible claimants generally fell into two payment categories: $700 for vehicles covered by the Battery Replacement Final Remedy and $1,400 for vehicles receiving the Software Final Remedy, with certain former owners or lessees eligible for $700 depending on timing and eligibility.
Did the settlement release personal injury or property damage claims?
No. The settlement expressly excluded personal injury and property damage claims, which were not released.
What role did NHTSA play in the Chevrolet Bolt EV battery matter?
NHTSA opened preliminary evaluation PE 20-016 on October 9, 2020, to assess whether a safety-related defect existed in the high-voltage battery systems of certain Chevrolet Bolt EV vehicles. Regulatory review and recall activity proceeded alongside the civil litigation.
Lithium Battery
Battery Fires
Electric Vehicles
Automotive Recall
Automotive Electronics
Electrical Defects
Thermal Analysis and Testing
Fire Cause and Origin Investigations
Product Failure
Damages Calculations
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