Porsche · Known Issues
2021 Porsche Taycan Problems: 12 Known Issues
2021 model year · 14,100+ owner reports · Updated September 2026
2021 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
2021 model year · 14,100+ owner reports · Updated September 2026
2021 · All trims · All engines
Choose the year and equipment for your written issues and visual request.
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According to Au7o's analysis of 14,100+ owner reports, the 2021 Porsche Taycan has 12 documented known issues, with 5 rated critical. The most serious are 12V Auxiliary Battery Drain ($200-$800 repair), Air Suspension Strut Retaining Ring Dislodgement (Air Spring Strut Failure), Front Brake Hose Cracking and Brake Fluid Leak, Sudden Powertrain Shutdown / Total Loss of Power While Driving (Pulse Inverter Software) and High-Voltage Battery Internal Short-Circuit and Fire Risk (LG Module Defect). The most commonly reported issue is Infotainment and Vehicle Software Bugs with 4,200 owner reports. Across all issues with published estimates, repair costs range from $200 to $10,000. DIY maintenance guides at au7o.io.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020-2025 Taycan vehicles. The front brake hoses can develop cracks and leak brake fluid.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Porsche Cars North America, Inc. (Porsche) is recalling certain 2025 Taycan vehicles. The rearview image may not immediately display when the vehicle is shifted into reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 111, "Rear Visibility."
SUSPENSION:FRONT:MACPHERSON STRUT
Porsche Cars North America, Inc. (Porsche) is recalling certain 2025 Panamera E-hybrid, Taycan, and Panamera vehicles. A retaining ring on top of the suspension strut may come loose, resulting in a dislodged strut and air loss from the strut spring.
BACK OVER PREVENTION: SENSING SYSTEM: CAMERA
Porsche Cars North America, Inc. (Porsche) is recalling certain 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid vehicles. The rearview camera image may not display when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
Porsche Cars North America, Inc. (Porsche) is recalling certain 2020 Taycan Turbo, 2021 Taycan, Taycan 4S Cross Turismo, 2022 Taycan, Taycan Turbo, Taycan GTS, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, 2020-2022 Taycan 4S and Taycan Turbo S, and 2023 Taycan vehicles. When there is an unbelted passenger, the seat belt warning light and audible chime will not activate as intended. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 208, "Occupant Crash Protection."
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According to Au7o's analysis of 14,100+ owner reports, the 2021 Porsche Taycan has 12 documented issues. The most frequently reported are: 12V Auxiliary Battery Drain, Air Suspension Strut Retaining Ring Dislodgement (Air Spring Strut Failure), Front Brake Hose Cracking and Brake Fluid Leak. Of these, 5 are rated critical and should be addressed promptly.
The 2021 Porsche Taycan has 12 known issues documented across 14,100+ owner reports. 5 issues are rated critical: 12V Auxiliary Battery Drain and Air Suspension Strut Retaining Ring Dislodgement (Air Spring Strut Failure) and Front Brake Hose Cracking and Brake Fluid Leak and Sudden Powertrain Shutdown / Total Loss of Power While Driving (Pulse Inverter Software) and High-Voltage Battery Internal Short-Circuit and Fire Risk (LG Module Defect). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
Repair costs for known Porsche Taycan issues range from $200 to $10,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 12V Auxiliary Battery Drain, typically costs $200-$800 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.
The Taycan 12V auxiliary battery drains excessively when the vehicle is parked, even for short periods. The numerous electronic modules and always-on connectivity features draw more current than the 12V battery management system can sustain. A dead 12V battery prevents the car fr… Repairs typically run $200-$800. Severity: high.
NHTSA 22V921 establishes this frozen identity for a VIN-bounded 2021 Taycan population. A sub-supplier machined the retaining-ring groove at the top of an air-suspension strut outside specification, so the ring can loosen, release air from the pneumatic spring, lower one corner a… Severity: high.
NHTSA 24V455 / Porsche ARB0 establishes this identity for affected 2020-2025 Taycan vehicles. Compression during certain steering and driving conditions stresses the front brake hoses at their minimum bending radius; cracks can develop over time and leak fluid, reducing front-bra… Severity: high.
NHTSA 21V486 / Porsche AMB5 establishes this frozen identity for affected 2020-2021 Taycan vehicles. An internal software error in the pulse-controlled inverter can cause loss of motive power while driving; steering and braking remain functional. Warning messages may occur before… Severity: high.
NHTSA 24V732 establishes this identity for an affected 2020-2024 Taycan population. Production problems at the high-voltage-cell supplier can create internal battery damage and a short circuit, increasing fire risk. Porsche expanded earlier campaigns because improved battery data… Severity: high.
The Taycan occasionally fails to initiate or complete DC fast charging sessions. Issues include charge port communication errors, reduced charging speeds below the advertised 270 kW peak, and charging sessions terminating prematurely. Software compatibility between the vehicle an… Severity: medium.
Some Taycan owners report faster-than-expected range degradation, particularly in cold climates and after frequent DC fast charging. The battery management system may also display inconsistent range estimates. While some degradation is normal for lithium-ion batteries, rates exce… Severity: medium.
Porsche TI 186/24 confirms that Taycan electric charge-port doors can fail to open or close fully and explains the cross-lock diagnostic trap: a malfunction on one side can produce an error for the opposite side, so both must be checked. WLK2 is a separate VIN-bounded 2020 condit… Severity: medium.
NHTSA 25V896 / Porsche ASB2 establishes this identity for affected 2020-2025 Taycan vehicles. Signal noise can interrupt communication with the rearview camera so the image does not display in reverse, violating FMVSS 111. The new assistance-system software is more resistant to s… Severity: medium.
The optional 22 kW onboard AC charger (OBC) is prone to failure. When it fails the car throws a yellow 'Electrical System Fault' warning and, in some cases, the car will not move at all; AC (Level 2) charging stops working. Porsche reportedly cannot reliably supply replacement 22… Repairs typically run $1,800-$10,000. Severity: medium.
The Taycan PCM infotainment system and vehicle management software experience frequent bugs including screen freezes, Apple CarPlay disconnections, climate control malfunctions, and navigation errors. OTA updates have improved stability but new bugs are occasionally introduced wi… Severity: low.
The Taycan front suspension produces clunking and creaking noises over bumps and during low-speed maneuvering. The issue is traced to the upper strut mounts, control arm bushings, and anti-roll bar end links. The heavy battery pack places additional stress on the front suspension… Repairs typically run $400-$2,000. Severity: low.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.