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full bulletin at NHTSA ↗2021 Porsche Taycan electrical problems
severe 32 complaints filed with NHTSA · avg repair $850 · see electrical across all vehicles →
Complaints
32
Recalls
0
Avg fix
$850
2fires
What stands out
Electrical accounts for 46% of every owner complaint on file for this vehicle — the dominant problem area across 4 categories tracked.
Owners have filed 32 electrical complaints with NHTSA against this vehicle, but no formal recall covers the issue — the federal record reflects what manufacturers have admitted, not everything owners are reporting.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
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full bulletin at NHTSA ↗Technical information for Warning Message "Vehicle Electrical System Faulty" in Conjunction With Fault Memory Entry "Cell Module X, Ageing Detected" in the High-Voltage Battery Control Unit - BMC
full bulletin at NHTSA ↗Technical information for Various Complaints About the Central Computer (PCM) Regarding System Stability, Navigation Operation and Charge Planning
full bulletin at NHTSA ↗Technical information for Warning Message "Vehicle Electrical System Faulty" in Conjunction With Fault Memory Entry "Cell Module X, Ageing Detected" in the High-Voltage Battery Control Unit - BMC
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
The failure pattern owners describe
The 2021 Porsche Taycan shows a consistent pattern of sudden, unprovoked power loss while driving. Owners describe the car shutting down at highway speeds (65–75 mph) with "Motor Control Error" or "Engine Control Error" messages, forcing dangerous roadside stops in traffic. One owner experienced this eight times in four months; another twice in one day. After restart, the car resumes normal function. Dealerships consistently report they cannot replicate the issue despite multiple service visits, and Porsche Corporate—after month-long inspections—has denied problems exist.
One owner at 45,000 miles encountered sudden gear disengagement matching a known defect (TSB #2209) documented in 2022 Taycans, yet Porsche refused warranty coverage. Complete electrical blackouts leaving doors inoperable and vehicles unmovable are also reported. Battery charging failures occur frequently, with one auxiliary battery dying after eight weeks on charger.
Two documented fires involve the Mobile Charger Connect plug melting during charging and igniting electrical fires in home garages. Heater units fail completely (over 800 cases reported in Europe), and infotainment systems malfunction (Bluetooth drops, navigation screens go black, XM radio unavailable). Recall NHTSA Campaign 24V732000 addresses electrical system issues, but parts remain unavailable months after recall notification. One owner reports a battery recall notice later dismissed as "not an active recall."
Same Porsche Taycan electrical reports on nearby years: 2020 · 2022
Failure modes owners describe
Sudden power loss / engine control error during driving
Vehicle loses all propulsion mid-drive and displays 'Motor Control Error' or 'Engine Control Error' messages. Power returns after restart. Occurs at highway and city speeds without warning, forcing dangerous roadside stops in traffic.
When: Incidents reported from early ownership (300 miles, 5000 miles) through later mileage; multiple owners report 2-8 occurrences over months
Symptoms owners cite: Abrupt loss of propulsion at speed; Motor Control Error / Engine Control Error messages on dashboard; All drive power cuts off while instrumentation remains powered; Car must be restarted to regain function; Hazard lights may not work during failure
Codes mentioned: Motor Control Error, Engine Control Error, Electrical System Error
Repairs/costs cited: Dealership unable to replicate issue in most cases; one owner reports TSB #2209 (NHTSA ID: 10210797) identifies known defect in 2022 Taycan with identical symptoms; another reports high-voltage converter replacement at 5000 miles
Recalls/TSBs owners mention: Porsche Corporate claimed 'nothing wrong' after month-long inspection; dealership service unable to duplicate or resolve after multiple visits; recall NHTSA Campaign 24V732000 (Electrical System) issued but part availability delayed
Unexpected transmission disengagement
Vehicle loses access to drive gears (D, R, P, N) either partially or completely without driver input. One documented case shows sudden shift into neutral during deceleration followed by complete immobilization.
When: One report at 45,000 miles; another at unspecified low mileage during acceleration from stop
Symptoms owners cite: Loss of Reverse and Park gears first; Progression to complete unresponsiveness of all gear positions; Loud thump sound from rear before failure; Vehicle immobilized and unable to shift into Drive
Codes mentioned: Transmission error
Repairs/costs cited: One vehicle towed; owner cites warranty expired one day prior; another owner notes 'transmission issue' identified by dealership but could not be replicated
Recalls/TSBs owners mention: TSB #2209 (NHTSA ID: 10210797) identifies known defect in 2022 Taycan; Porsche refused warranty coverage on 2021 model with identical symptoms due to expired warranty timing
Complete electrical system failure / blackout
Vehicle loses all electrical power unexpectedly, rendering it inoperable. Doors cannot open, windows stuck, vehicle cannot be accessed or moved. Power spontaneously returns after minutes to hours.
When: Reported at various mileages including right in dealer lot at 130 miles and after 8 weeks on charger
Symptoms owners cite: Complete loss of electrical power; Doors and windows inoperable; Vehicle cannot shift into gear; No dashboard display or lighting; Requires mechanical opening to tow; Spontaneous power restoration after 1-2 minutes to several hours
Codes mentioned: Electrical System Error
Repairs/costs cited: Multiple tows required; dealership performed software updates in some cases; one vehicle had 12V auxiliary battery failure after charging
Recalls/TSBs owners mention: Recall NHTSA Campaign 24V732000 (Electrical System) issued; parts unavailable causing extended delays
Battery charging failure and battery module defects
High-voltage battery module fails to accept or hold charge. Vehicle displays charging error messages or fails to respond when connected to charger. One case documented defective 12V auxiliary battery after 8 weeks on charger.
When: Reported from early ownership through extended charging sessions
Symptoms owners cite: Charging cycle fails to initiate or complete; Charging error messages displayed; Battery will not hold charge despite proper equipment and power source; Vehicle becomes immobilized due to inability to recharge; Vehicle loses drivability and range unexpectedly
Codes mentioned: Charging error, Battery system error
Repairs/costs cited: One battery module required replacement; one case involved ElectrifyAmerica technician override to force charging; auxiliary 12V battery failure documented
Recalls/TSBs owners mention: Recall NHTSA Campaign 24V732000 relates to electrical system; recall notice sent for battery cell replacement but parts unavailable and one owner reported told 'not an active recall'
Charging equipment fire hazard
Mobile Charger Connect plug melts and ignites electrical fire during charging. Wall outlet receptacle damage and charger housing melted; garage fire resulted. High temperature warnings preceded events.
When: Two documented fires: one during reduced-amperage (30A) charging and one after charger left plugged in for 2 hours
Symptoms owners cite: Plug housing melts during charging; Outlet receptacle damaged and blackened; Electrical fire ignited in wall outlet and charger; Garage wall blackened by thermal event; High temperature warning shown on charger before failure
Codes mentioned: Thermal event in charging equipment
Repairs/costs cited: Charger current reduced from 40A to 30A per dealership direction; charger plugged into specified NEMA 14-50 receptacle; fire suppression required
Recalls/TSBs owners mention: Dealership directed current reduction but failure still occurred; NHTSA Campaign 24V215 mentions risk of fire
Climate control and heater failure
Heater unit fails completely, leaving vehicle unable to defrost. AC also documented with intermittent failure requiring restart to restore function. Dealership aware of widespread issue but parts unavailable.
When: Heater failures reported December 2022 through February 2023; AC issues noted during early operation
Symptoms owners cite: Complete heater failure; Ice formation on inside of windows; Cannot defrost or maintain visibility; AC intermittent, requires vehicle restart to restore function; Precooling errors reported
Codes mentioned: Heater malfunction, AC system error
Repairs/costs cited: Heater part replacement required; parts unavailable 4-6 weeks (reported mid-February with still no parts); second occurrence in two years; over 800 cases reported in Europe
Recalls/TSBs owners mention: Dealership acknowledged awareness of issue affecting multiple Taycans; no parts available; issue also affecting Audi models
Infotainment and connectivity glitches
Multiple electronics malfunctions including Bluetooth disconnection, navigation console blackout, satellite radio unavailable, and garage door opener failure.
When: Reported during ownership; vehicle at dealer three weeks for attempted resolution
Symptoms owners cite: Bluetooth randomly disconnects from phone; Center dash navigation console randomly goes dark; XM radio inaccessible despite active subscription; Garage door opener fails 3 of 5 times
Repairs/costs cited: Updates not installed during extended dealer visit; dealership had not 'had time' to perform updates
Recalls/TSBs owners mention: Dealership unable to resolve; software updates available but not completed during service
Power loss with limp-mode deceleration
Vehicle enters reduced-power state with turtle symbol on dashboard and extremely slow acceleration. Occurs without warning during normal driving.
When: Reported at 78% battery state
Symptoms owners cite: Sudden deceleration; Turtle symbol appears on dashboard; Severe acceleration limitation; No other warning indicators illuminated; Forced to swerve to avoid traffic
Codes mentioned: Turtle symbol / limp mode
Repairs/costs cited: Vehicle towed to dealership where it remained; prior AC precooling errors noted
Synthesized from 32 NHTSA owner complaints — unverified consumer allegations, summarized for patterns. The verbatim filings appear below.
What owners are reporting 6 most recent
While driving my Porsche Taycan 2021 (5000 miles) Nov 4th, 2022, at highway speeds on I-15 to Vegas, the instrument cluster started flashing "Electric System Error" and instructed me to park in safe place immediately and call Roadside Assistance. I had to park on the hard shoulder and wait for a tow truck. It was scary as there were big rigs passing my every 10-20 seconds. Car was towed to the…
The heater does not work, requires a part change and this is the 2nd time in two years. Only blowing cold air.
I bought this car a few weeks ago and drove only 300 miles so far. I was pulling out of my neighborhood onto the Main Street, when I turned then started to accelerate I received an error saying engine control error and my car came to a screeching halt. The accelerator stopped working and the car made some loud grinding noises and no functions were working.luckily nobody was behind me. I turned…
Mfgr unable to remedy NHSTA 24V215 Risk of fire is unacceptable to leave unaddressed for this long
The contact owns a 2021 Porsche Taycan. The contact received notification of NHTSA Campaign Number: 24V732000 (Electrical System) and would like to be removed from the recall distribution list. The local dealer and manufacturer were contacted. The vehicle was repaired.
Accelerating away from a stop sign, and going about 25 mph, the car slammed on the brakes, even a couple of ABS jerks, and said “Engine Control Issue; Park in a safe place.” (It might have said Engine Control Error). After stopping, was unable to move the car, as all drive power had been shut off. All instrumentation was still powered up. I then shut off power to car, waited 15 seconds, and car…
Had electrical trouble with your 2021 Porsche Taycan?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2021 Porsche Taycan?
It's a meaningful issue. 32 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Porsche/Taycan.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.