APB2 – Insufficient Sealant on High-Voltage Battery – 2023 Porsche Taycan

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OMB Control No.: 2127-0004 Part 573 Safety Recall Report 23V-615 The information contained in this report was submitted pursuant to 49 CFR §573 Manufacturer Name : Porsche Cars North America, Inc. Submission Date : SEP 01, 2023 NHTSA Recall No. : 23V-615 Manufacturer Recall No. : APB2 Manufacturer Information : Manufacturer Name : Porsche Cars North America, Inc. Address : One Porsche Drive Atlanta GA 30354 Company phone : 1-800-767-7243 Population : Number of potentially involved : 4,777 Estimated percentage with defect : 3 % Vehicle Information : Vehicle 1 : 2023-2023 Porsche Taycan Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 23, 2022 – AUG 03, 2023 VIN Range 1 : Begin : WP0AA2Y16PSA10625 End : WP0AA2Y19PSA16306 Not sequential Vehicle 2 : 2023-2023 Porsche Taycan 4S Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 22, 2022 – JUL 27, 2023 VIN Range 1 : Begin : WP0AB2Y10PSA35114 End : WP0AB2Y14PSA36606 Not sequential Part 573 Safety Recall Report 23V-615 Page 2 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 3 : 2023-2023 Porsche Taycan Turbo S Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 23, 2022 – MAY 09, 2023 VIN Range 1 : Begin : WP0AC2Y1XPSA52029 End : WP0AC2Y15PSA52424 Not sequential Vehicle 4 : 2023-2023 Porsche Taycan Turbo Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : NOV 18, 2022 – MAY 10, 2023 VIN Range 1 : Begin : WP0AC2Y13PSA52082 End : WP0AC2Y11PSA52419 Not sequential Vehicle 5 : 2023-2023 Porsche Taycan GTS Vehicle Type : LIGHT VEHICLES Body Style : 4-DOOR Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 24, 2022 – JUL 21, 2023 VIN Range 1 : Begin : WP0AD2Y12PSA47095 End : WP0AD2Y16PSA48461 Not sequential Part 573 Safety Recall Report 23V-615 Page 3 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 6 : 2023-2023 Porsche Taycan 4 Cross Turismo Vehicle Type : LIGHT VEHICLES Body Style : HATCHBACK Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 27, 2022 – JUL 21, 2023 VIN Range 1 : Begin : WP0BA2Y15PSA60064 End : WP0BA2Y17PSA60650 Not sequential Vehicle 7 : 2023-2023 Porsche Taycan 4S Cross Turismo Vehicle Type : LIGHT VEHICLES Body Style : HATCHBACK Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : SEP 28, 2022 – JUL 21, 2023 VIN Range 1 : Begin : WP0BB2Y19PSA65037 End : WP0BB2Y16PSA65545 Not sequential Vehicle 8 : 2023-2023 Porsche Taycan Turbo S Cross Turismo Vehicle Type : LIGHT VEHICLES Body Style : HATCHBACK Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : OCT 10, 2022 – AUG 02, 2023 VIN Range 1 : Begin : WP0BC2Y16PSA68006 End : WP0BC2Y18PSA68153 Not sequential Part 573 Safety Recall Report 23V-615 Page 4 The information contained in this report was submitted pursuant to 49 CFR §573 Vehicle 9 : 2023-2023 Porsche Taycan Turbo Cross Turismo Vehicle Type : LIGHT VEHICLES Body Style : HATCHBACK Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : OCT 13, 2022 – MAY 10, 2023 VIN Range 1 : Begin : WP0BC2Y1XPSA68025 End : WP0BC2Y16PSA68152 Not sequential Vehicle 10 : 2023-2023 Porsche Taycan GTS Sport Turismo Vehicle Type : LIGHT VEHICLES Body Style : HATCHBACK Power Train : HYBRID ELECTRIC Descriptive Information : Affected vehicles have been identified through production records. The vehicle populations prior to the recalled vehicle production period did not have the Teroson sealant and thus are not subject to the failure mode of the recall population. Vehicle populations subsequent to the recalled vehicle production period have an enhanced Teroson sealant and thus are not subject to the failure mode as the recall population. Production Dates : OCT 05, 2022 – AUG 03, 2023 VIN Range 1 : Begin : WP0CD2Y16PSA90038 End : WP0CD2Y17PSA90288 Not sequential Description of Defect : Description of the Defect : Under certain circumstances there is a possibility that over time liquid can intrude into the high voltage battery of certain Taycan vehicles. FMVSS 1 : NR FMVSS 2 : NR Description of the Safety Risk : Over time, if a sufficient amount of conductive liquid accumulates in the battery, arcing can occur, which could increase the risk of a thermal event. Description of the Cause : Insufficiently robust sealant of the high voltage battery can lead to the defect condition. Identification of Any Warning that can Occur : If liquid enters the battery, a drop in insulation resistance results. If the insulation resistance value drops below a defined threshold over time, a yellow warning message is displayed in the vehicle. If the insulation value continues to drop below a defined threshold over time, a red warning message is displayed in the vehicle. Involved Components : Part 573 Safety Recall Report 23V-615 Page 5 The information contained in this report was submitted pursuant to 49 CFR §573 Component Name 1 : High Voltage Battery Component Description : High Voltage Battery Component Part Number : 9J1.915.099.** Component Name 2 : High Voltage Battery Component Description : High Voltage Battery Component Part Number : 9J1.915.100.** Supplier Identification : Component Manufacturer Name : DRÄXLMAIER Group Address : Landshuter Straße 100 Vilsbiburg Foreign States 84137 Country : Germany Chronology : Beginning in 2022 Porsche became aware of a limited number of non-U.S. field cases involving reduced insulation resistance values, some of which indicated liquid intrusion into the battery. None of these incidents resulted in a fire or thermal event of Porsche vehicles. In September 2022 a Teroson sealant was incorporated into the battery production process for Taycan vehicles in an effort to increase battery sealing robustness. In March 2023 Porsche began receiving reports of reduced insulation resistance values in vehicles with the Teroson sealant outside of the U.S., and in April 2023 one incident in the U.S. was reported. Porsche continued investigating the cause of the liquid intrusion and concluded that a further enhanced Teroson sealant should be added to the battery. The enhanced Teroson sealant was added in May 2023 in the production process of the supplier. There have been no reports of liquid intrusion in vehicles with the enhanced Teroson sealant added. Porsche continued to receive reports of reduced insulation resistance values in vehicles with the original Teroson sealant. In July and August 2023 two additional U.S. incidents were reported. These incidents were reported when reduced insulation resistance values lead to warning messages displayed in the vehicle causing vehicle owners to bring their vehicles to workshops for repair, at which time liquid in the battery was detected. None of these incidents involved a fire or thermal event. On August 25, 2023, in an abundance of caution Porsche has determined to conduct a recall of these vehicles with the original Teroson sealant. Part 573 Safety Recall Report 23V-615 Page 6 The information contained in this report was submitted pursuant to 49 CFR §573 Description of Remedy : Description of Remedy Program : Porsche will conduct leak testing to detect the potential for leakage into the battery. If testing indicates the potential for leakage, the battery will be replaced. The owner’s letter will not include a statement about customer reimbursement for pre-notification remedies as all of the affected vehicles are still covered under Porsche New Car Limited Warranty. How Remedy Component Differs from Recalled Component : The remedy component includes an enhanced Teroson sealant. Identify How/When Recall Condition was Corrected in Production : The enhanced Teroson sealant was incorporated into battery production in May 2023. Recall Schedule : Description of Recall Schedule : Owner’s will be notified of the Recall within 60 days of the filing of this report. If no remedy is available at that time, an interim notification will be sent, followed by a final remedy notification when the remedy becomes available. Planned Dealer Notification Date : SEP 15, 2023 – SEP 15, 2023 Planned Owner Notification Date : OCT 31, 2023 – OCT 31, 2023 * NR – Not Reported

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