Tooney
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March 20, 2024 NHTSA CAMPAIGN NUMBER: 24V217000
High-Voltage Batteries May Short Circuit
A short circuit in the battery increases the risk of a fire.
NHTSA Campaign Number: 24V217000
Manufacturer Porsche Cars North America, Inc.
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 749
Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan, 2020-2024 Taycan 4S, Taycan Turbo, 2021-2023 Taycan 4 Cross Turismo, 2022-2023 Taycan 4S Cross Turismo, Taycan Turbo S Cross Turismo, 2023 Taycan Turbo Cross Turismo, 2022-2024 Taycan GTS, Taycan GTS Sport Turismo, and 2020-2023 Taycan Turbo S vehicles.
The high-voltage battery may experience a short circuit within the battery modules.
Remedy
Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will analyze the battery data and replace the high-voltage battery modules as necessary, free of charge. Owner notification letters are expected to be mailed May 17, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is <ARA5>.
Description of the Defect : Certain Taycan high-voltage batteries experience short circuits within the battery modules, which can lead to thermal events and in some cases fires.
Description of the Safety Risk : A short circuit in the high-voltage battery module can increase the risk of a
thermal event.
Description of the Cause : The root cause analysis suggests that production issues in high-voltage battery
modules can increase the risk of internal short circuits.
Identification of Any Warning that can Occur : There are no warnings.
Chronology :
In 2021 Porsche became aware of a report of a single vehicle battery fire that occurred shortly after charging.
Porsche investigated this incident and began obtaining comparable undamaged batteries from the field for
analysis. In 2023, Porsche became aware of further instances of battery fires in Taycan vehicles after charging.
Therefore, although the root cause analysis was still ongoing, on 6 December 2023 Porsche determined that a
safety-related defect exists in the identified vehicles (manufacturer recall identification code APB5). Porsche
continued investigating this issue together with the battery cell/module manufacturer, using in particular data analytics and hardware analyses. With this additional investigation and analyses, on 13 March 2024 Porsche determined that a safety-related defect exists in additional vehicles identified via data analytics and hardware analyses. As there are different batches of potentially affected Porsche Taycan vehicles which require different remedies, Porsche decided to conduct two different recalls on 13 March 2024 (manufacturer recall identification code ARA4 and ARA5): ARA4 applies to a vehicle population where Porsche has sufficient vehicle battery data. ARA5 applies to a vehicle population where Porsche does not or not yet have access to sufficient vehicle battery data.
Description of Remedy Program : As an interim remedy, the owner notification letter will advise that
affected vehicles should only be charged to a maximum of 80% of the battery capacity.
To determine the necessity for a possible HV battery module replacement, Porsche will obtain additional vehicle battery data (via dealer inspection, unless the customer activates over-the-air access to share sufficient vehicle battery data).
Once obtained, the data will be analyzed. Affected high-voltage battery modules will be replaced.
The owner notification letter will advise that Porsche offers a reimbursement for pre-notification remedies in accordance with 49 CFR §573.13.
How Remedy Component Differs from Recalled Component :
The vehicles were identified by data analytics based on latest root cause analyses to determine affected clusters in production. This report will be updated as necessary.
Replacement battery modules will be produced using improved cell production quality, as applicable.
Identify How/When Recall Condition was Corrected in Production : Vehicles produced after March 4, 2024 are not subject to this recall.
Planned owner notification date: May 17, 2024.
https://static.nhtsa.gov/odi/rcl/2024/RCLRPT-24V217-1217.PDF
Edited on May 17 to add TSB for dealers: https://static.nhtsa.gov/odi/rcl/2024/RCRIT-24V217-5724.pdf
High-Voltage Batteries May Short Circuit
A short circuit in the battery increases the risk of a fire.
NHTSA Campaign Number: 24V217000
Manufacturer Porsche Cars North America, Inc.
Components ELECTRICAL SYSTEM
Potential Number of Units Affected 749
Summary
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2024 Taycan, 2020-2024 Taycan 4S, Taycan Turbo, 2021-2023 Taycan 4 Cross Turismo, 2022-2023 Taycan 4S Cross Turismo, Taycan Turbo S Cross Turismo, 2023 Taycan Turbo Cross Turismo, 2022-2024 Taycan GTS, Taycan GTS Sport Turismo, and 2020-2023 Taycan Turbo S vehicles.
The high-voltage battery may experience a short circuit within the battery modules.
Remedy
Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will analyze the battery data and replace the high-voltage battery modules as necessary, free of charge. Owner notification letters are expected to be mailed May 17, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is <ARA5>.
Description of the Defect : Certain Taycan high-voltage batteries experience short circuits within the battery modules, which can lead to thermal events and in some cases fires.
Description of the Safety Risk : A short circuit in the high-voltage battery module can increase the risk of a
thermal event.
Description of the Cause : The root cause analysis suggests that production issues in high-voltage battery
modules can increase the risk of internal short circuits.
Identification of Any Warning that can Occur : There are no warnings.
Chronology :
In 2021 Porsche became aware of a report of a single vehicle battery fire that occurred shortly after charging.
Porsche investigated this incident and began obtaining comparable undamaged batteries from the field for
analysis. In 2023, Porsche became aware of further instances of battery fires in Taycan vehicles after charging.
Therefore, although the root cause analysis was still ongoing, on 6 December 2023 Porsche determined that a
safety-related defect exists in the identified vehicles (manufacturer recall identification code APB5). Porsche
continued investigating this issue together with the battery cell/module manufacturer, using in particular data analytics and hardware analyses. With this additional investigation and analyses, on 13 March 2024 Porsche determined that a safety-related defect exists in additional vehicles identified via data analytics and hardware analyses. As there are different batches of potentially affected Porsche Taycan vehicles which require different remedies, Porsche decided to conduct two different recalls on 13 March 2024 (manufacturer recall identification code ARA4 and ARA5): ARA4 applies to a vehicle population where Porsche has sufficient vehicle battery data. ARA5 applies to a vehicle population where Porsche does not or not yet have access to sufficient vehicle battery data.
Description of Remedy Program : As an interim remedy, the owner notification letter will advise that
affected vehicles should only be charged to a maximum of 80% of the battery capacity.
To determine the necessity for a possible HV battery module replacement, Porsche will obtain additional vehicle battery data (via dealer inspection, unless the customer activates over-the-air access to share sufficient vehicle battery data).
Once obtained, the data will be analyzed. Affected high-voltage battery modules will be replaced.
The owner notification letter will advise that Porsche offers a reimbursement for pre-notification remedies in accordance with 49 CFR §573.13.
How Remedy Component Differs from Recalled Component :
The vehicles were identified by data analytics based on latest root cause analyses to determine affected clusters in production. This report will be updated as necessary.
Replacement battery modules will be produced using improved cell production quality, as applicable.
Identify How/When Recall Condition was Corrected in Production : Vehicles produced after March 4, 2024 are not subject to this recall.
Planned owner notification date: May 17, 2024.
https://static.nhtsa.gov/odi/rcl/2024/RCLRPT-24V217-1217.PDF
Edited on May 17 to add TSB for dealers: https://static.nhtsa.gov/odi/rcl/2024/RCRIT-24V217-5724.pdf
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