Porsche Taycan 4S J1

Porsche has recalled 2020-2024 Taycans (27,500+ vehicles globally) due to a production defect in battery cells manufactured by LG Energy Solution in Poland. An internal short circuit can lead to thermal runaway, creating a fire risk. The recall has been expanded multiple times (designations ARA4, ARB5, ARB6, ARB7). Porsche installs diagnostic software to monitor cell behavior and replaces affected battery modules where anomalies are detected, all at no cost. Until the fix is installed, owners are advised to limit charging to 80% maximum state of charge. This is the most critical item to verify before purchasing any used Taycan — confirm with the VIN at recall.porsche.com that all battery campaigns are completed. The repair itself is free, but an unrepaired car carries a genuine fire risk.

One of the most frequently reported Taycan issues. The 12V lithium battery powers critical systems including door locks, infotainment, and the high-voltage battery initialization circuit. When it fails, the car becomes completely unresponsive — doors may not unlock, screens stay dark, and the car will not drive, even with a fully charged main battery. Parasitic drain from connected apps, aftermarket dashcams, or keys stored near the vehicle accelerates the problem. Cars left unused for more than 2-3 weeks are particularly vulnerable. Porsche has released software updates to improve 12V charging logic, but early 2020-2021 cars are most susceptible. Replacement requires a Porsche dealer because the battery uses a proprietary connector and must be coded to the VIN. The battery costs approximately €300-500 and labor adds €200-500, totaling €500-1,000 depending on market. A trickle charger is recommended for cars not driven regularly.

The integrated on-board AC charger (up to 22 kW on cars with the optional upgrade, 11 kW standard) can fail, preventing the car from charging at home or at AC public chargers. Symptoms include an Electrical System Fault warning and the car refusing to initiate AC charging, while DC fast charging may still work. The unit costs approximately €2,000-2,500 for the part, plus 3-4 hours of specialist high-voltage labor at €150-250/hour. Total out-of-warranty repair runs €1,500-3,500 depending on labor rates. Parts availability can be an issue, with some owners waiting 4-6 weeks. This component should be covered under the 8-year EV system warranty in most cases, but verify coverage with Porsche before assuming.

Porsche acknowledged an HVAC quality issue affecting cabin heating in 2020-2023 Taycans. A faulty soldering joint on a circuit board within the heat pump module can cause the heating system to fail entirely in cold weather. At least 136 cases have been tracked, with some cars requiring three or four replacements. Repair takes approximately 6 hours of specialist labor. Parts have been on backorder in some regions, with waits of 4-6 weeks reported. The heat pump also manages battery thermal conditioning, so failure can reduce charging speed and winter range. This is typically covered under the 8-year EV system warranty when detected. Out-of-warranty costs run €800-2,500 depending on whether the entire module or just the circuit board is replaced.

A widespread issue particularly on 2020-2022 Taycans. The Porsche Communication Management system can freeze, display a black screen, lose Apple CarPlay/Android Auto connectivity, or reboot spontaneously while driving. The reversing camera may also fail to display or show excessive signal noise — this is subject to a separate recall for 2019-2025 models. Most PCM issues are resolved through software updates (OTA or at the dealer for €150-350). However, if the central computer hardware has failed, replacement costs €1,500-2,500 out of warranty. The 2024 facelift (MY2025) brought significantly improved software stability. For used buyers, checking the installed software version and whether all software campaigns have been applied is essential.

Taycans equipped with adaptive air suspension (standard on GTS/Turbo, optional on 4S) can develop faults in the height sensors, air struts, or compressor/regulator unit. Symptoms include the car sitting unevenly after parking, a Chassis error message on the dashboard, or the suspension locking in its lowest setting. In many cases, the issue is a sensor calibration drift or voltage fluctuation rather than a hardware failure, which a dealer software reset resolves for €150-350. However, actual strut or compressor failure requires component replacement. A single air strut costs €600-1,000, and the compressor runs €800-1,200 installed. Aftermarket options from brands like Arnott can reduce costs by roughly 40%. Cars with standard steel spring suspension avoid this issue entirely.

Porsche recalled 2020-2025 Taycan models because the front brake hoses can develop cracks over time, leading to brake fluid leakage. This can cause reduced braking performance or a spongy brake pedal. Dealers replace the front brake hoses at no cost. This is a safety-critical recall — verify completion before any test drive of a used Taycan.