The 2021 Taycan Turbo S is Porsche's first all-electric flagship, and early adopters are seeing a mix of cutting-edge tech teething issues and traditional Porsche build quirks. High-voltage battery concerns, drivetrain mount failures, and electrical gremlins dominate the problem list, often covered under warranty but expensive outside it.
High-Voltage Battery Cell Imbalance and Capacity Loss
Occasional · high severity
Typical onset: 30,000-60,000 mi
Symptoms: Reduced range (20-30% below rated), Battery thermal management warnings on dash, Uneven cell voltages visible in diagnostic mode, Car may limit power output or refuse to charge to 100%
Fix: Porsche has issued recalls for specific battery cell batches (NHTSA 3 recalls noted). Some cases require full high-voltage battery replacement under warranty; out-of-warranty means 12-16 hours labor for battery R&R plus module replacement. If Porsche honors goodwill, you're golden; if not, you're looking at catastrophic expense.
Estimated cost: $25,000-45,000
Transmission Mount and Subframe Cracking
Common · high severity
Typical onset: 20,000-50,000 mi
Symptoms: Clunking during hard acceleration or deceleration, Vibration through the cabin under load, Visible cracks in rear subframe near mount points, Alignment drifting repeatedly after correction
Fix: Taycan's insane torque stresses the drivetrain mounts and rear subframe. Mounts alone: 3-4 hours labor. Subframe replacement if cracked: 12-18 hours plus alignment. Porsche has been known to warranty this under 'goodwill' even out of factory coverage due to design weakness. Use revised parts.
Estimated cost: $2,800-9,500
Front and Rear Differential Seal Leaks and Bearing Noise
Occasional · medium severity
Typical onset: 40,000-70,000 mi
Symptoms: Whining or humming from front or rear axle at speed, Gear oil spots on garage floor near wheel wells, Increased drivetrain noise during regen braking, Reduced efficiency or range due to bearing drag
Fix: Both electric motors have integrated reduction gears and differentials. Seal leaks are fixable with 4-6 hours labor per axle. Full diff rebuild (bearing replacement) runs 8-12 hours per axle. Common enough that Porsche extended some coverage; check service bulletins. Flush and refill with Porsche-spec synthetic oil mandatory.
Estimated cost: $1,800-5,500
AC Evaporator Core Leak and HVAC Module Failure
Occasional · medium severity
Symptoms: Loss of refrigerant with no visible external leak, Musty smell from vents even after fresh cabin filter, AC blows warm despite compressor running, Low refrigerant warnings on climate control screen
Fix: Dashboard removal required to access evaporator core, making this a 10-14 hour job. Taycan's complex HVAC system (battery thermal management integrated) means diagnosis takes extra time. Leak test and evac/recharge included. Sometimes HVAC control module fails simultaneously, add 2 hours and $800-1,200 for module.
Estimated cost: $3,500-6,000
Instrument Cluster and Infotainment Glitches
Common · low severity
Symptoms: Digital dash freezing or rebooting while driving, Touchscreen unresponsive or lagging severely, Phantom warning lights (especially tire pressure), Apple CarPlay/Android Auto disconnecting randomly
Fix: Often fixable with software updates (1 hour labor for dealer scan tool access). Persistent cases may need instrument cluster replacement (6-8 hours labor due to coding and calibration). NHTSA recall for instrument cluster on some VINs. Check VIN for open recalls first—may be free fix.
Estimated cost: $150-3,200
Onboard Charger Failure and 12V Battery Drain
Occasional · medium severity
Symptoms: Car won't charge on Level 2, but DC fast-charge works, 12V battery dead after sitting a few days, Charging error messages with no fault codes, Interior electronics reset randomly or fail to wake
Fix: Taycan uses 12V lead-acid battery to power computers while main battery sleeps. High parasitic draw is common (software bug or module not sleeping). 12V replacement: 1 hour, $300-450. Onboard charger (AC to HV DC) failure: 4-6 hours labor, $2,500-4,000 parts. NHTSA recall on charging cable/cord—check for open campaigns.
Estimated cost: $300-5,000
Owner tips
Keep up with Porsche software updates religiously—many electrical issues are fixed via over-the-air or dealer updates.
Pre-purchase inspection MUST include high-voltage battery health scan with Porsche PIWIS diagnostic tool—third-party scanners miss critical data.
Avoid extended sits without driving; keep 12V battery on a tender if storing more than a week to prevent module corruption.
Budget $2,000-3,000/year for out-of-warranty peace of mind; consider extended warranty if buying used with miles above 40k.
Buy one if you're comfortable with early-adopter EV risks and have access to a Porsche specialist or deep pockets—amazing performance, but expect expensive surprises once the factory warranty expires.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2023 Taycan, Taycan 4 Cross Turismo, 2020-2023 Taycan 4S, Taycan Turbo S, 2021-2022 Taycan 4S Cross Turismo, 2022 Taycan Turbo S Cross Turismo, 2022-2023 Taycan GTS, 2023 Taycan GTS Sport Turismo, and 2020-2021 Taycan Turbo vehicles. The high-voltage battery may experience a short circuit within the battery modules.
Consequence: A short circuit in the battery increases the risk of a fire.
Remedy: Owners are advised to only charge their vehicles to a maximum of 80% battery capacity until the repair has been completed. Dealers will replace the affected modules in the high-voltage battery, free of charge. Owner notification letters were mailed on October 8, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARA4.
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.
Consequence: A short circuit in the battery increases the risk of a fire.
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 were mailed on October 9, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ARA5.
Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2023 Porsche Taycan, 2021-2022 Taycan 4S, Taycan Turbo S, Taycan Turbo, Taycan 4 Cross Turismo, Taycan 4S Cross Turismo, Taycan Turbo Cross Turismo, 2022 Taycan GTS, and Taycan GTS Sport Turismo vehicles. The high-voltage battery may experience a short circuit within the battery modules.
Consequence: A short circuit in the battery increases the risk of a fire.
Remedy: Dealers will inspect and repair the high-voltage battery by replacing modules as necessary, free of charge Owner notification letters were mailed on June 14, 2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is APB5.
Porsche Cars North America, Inc. (Porsche) is recalling various models and model years. Please see the recall report for a list of the included vehicles. When using the industrial 220V/240V plug at the 100% charge setting, some home power outlets may be incapable of handling the electrical current required to utilize the compact charging system, causing the outlet or charging cable to overheat.
Consequence: An overheated outlet or charging cable can increase the risk of a fire.
Remedy: Owners are advised not to use the 220V/240V compact/portable charging cable and only use the 110V home charging cable or public charging stations. Dealers will supply a new 220V/240V compact/portable charging cable with an incorporated temperature sensor, free of charge. Owner notification letters were mailed on October 24, 2024. A second notice will be sent once remedy parts become available, anticipated mid-2024. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is APB6.
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."
Consequence: A malfunctioning seat belt warning system may not alert the passenger to buckle their seat belt, increasing the risk of injury in the event of a crash.
Remedy: Dealers will update the instrument cluster software, free of charge. Owner notification letters are expected to be mailed May 16, 2023. Owners may contact Porsche's customer service at 1-800-767-7243. Porsche's number for this recall is APA2.
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