2018 Tesla Model X electrical system problems

34 owner complaints filed with NHTSA name the electrical system on the 2018 Tesla Model X — 18% of all complaints for this model year.

Electrical System complaints

18%

share of all complaints

12,500 mi

median reported incident mileage

4 / 1

crash / fire reports

What owners report

“For the past year, the battery will not hold it charge. I am getting about 30% of predicted mile range in colder weather and about 50% of predicted range in warmer weather. This makes the car unusable except for short trips and even then requires frequent charging. In addition, intermittantly, it…”
filed Apr 19, 2026
“The 2018 Model X experienced a sudden and complete loss of power and became totally inaccessible. All doors and access points were inoperable and the vehicle could not be unlocked, disconnected, powered on, or placed into any service or tow mode. Emergency front-trunk release cables had to be used…”
filed Feb 5, 2026

Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.

On certain Model S and Model X vehicles, the battery powered Pyrotechnic High Voltage (HV) Battery Disconnect will reach the end of its battery lifespan in the near future, which will trigger alerts and may limit the…
SB-25-16-003 · Service Bulletin/Repair Instructions · issued Jun 3, 2025