2026 Toyota BZ electrical system problems
12 owner complaints filed with NHTSA name the electrical system on the 2026 Toyota BZ — 60% of all complaints for this model year.
What owners report
“SUPPLEMENT TO ODI COMPLAINT 11758090 (filed 8/19/2026). Two corrections, an identified component, and a verified manufacturer remedy. Full narrative attached. CORRECTIONS. (1) The prior 12V battery was replaced 5/29/2026, not June 2026; invoice 569207 is correct. (2) The complaint attributed the…”
filed Sep 5, 2026
“The 12-volt auxiliary battery system repeatedly discharges itself and has twice left the vehicle completely inoperative: 7/24/2026 (5.58 V at the battery, parked unplugged ~46 hours after the last drive) and 7/28/2026 (5.95 V, failure during an attempt to enter READY to drive). The 12V system…”
filed Aug 19, 2026
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- Electronic control unit (ECU) that controls the high voltage battery may experience a…Campaign 26V393000 · Jun 18, 2026
Related service bulletins
Some 2026 bZ vehicles with head unit version 2199 may exhibit a condition where the audio playback is choppy across all audio sources.
T-SB-0030-26 · Service Bulletin/Repair Instructions · issued Apr 30, 2026
Other reported problem areas on the 2026 Toyota BZ
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.