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Electrical systemPart report

2023 Toyota Prius Prime Electrical system Problems

Complaints
3about this part
Share
50%of 6 total for the year
Median mileage
—not reported
Trend
Too newThis model year is less than 4 years old, so a trend is not meaningful yet.

NHTSA recorded 3 complaints about the electrical system of the 2023 Toyota Prius Prime, 50% of the 6 complaints for this model year. 2 recall campaigns on record are filed under a similar system.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“There is an unexplained loss of 12V power from the 12V battery, and the car will not start. This was reported to the local Toyota dealership on 12/5/25. The car had to be jumped in order to drive it to the dealership/service department. They said the 12V battery was fully charged when they inspected it and there was no parasitic drain on the the battery. They inspected the battery again on 12/30/25 during a routine scheduled service and the 12V battery was good. …”

NHTSA complaint #11720026, filed 2026-02

“The vehicle exhibits an unaddressed factory programming defect where the Plug-In Charge Control ECU fails to enter sleep mode while plugged in or resting. This causes continuous, heavy parasitic drain on the 12V auxiliary battery, causing chronic low-voltage state across critical systems. The 12V auxiliary network supplies power to the primary control units, CAN-bus communication modules, and dynamic stability systems. Operating under chronic low-voltage causes system instability, erratic sensor processing, voltage brownouts, and rapid degradation of the 12V battery. …”

NHTSA complaint #11758058, filed 2026-08

“My 2023 Prius Prime cannot be charged normally in hot weather without triggering a thermal-protection fault on its high-voltage charging system. Avondale Toyota diagnosed it in writing: CODE P1CE996 CHARGER COOLING FAN REVOLUTION SENSOR COMPONENT INTERNAL FAILURE. THE ELECTRIC CHARGER ASSEMBLY HAS A INTERNAL OPEN CIRCUIT CAUSING IT TO BE INOP. RECOMMEND REPLACEMENT ADD PN# G9090-47061. Quote: $2,516.99 plus ~$200 diagnostic. The vehicle cannot verify its high-voltage charger's cooling fan is operating. In Phoenix heat (100F+), normal charging repeatedly sets the fault and check engine light. …”

NHTSA complaint #11750574, filed 2026-07

Related recalls

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2024640%
2023350%
2022113%
2021440%
2020319%
2019222%
201816%
2017717%

Other parts of the 2023 Toyota Prius Prime

Transmission and drivetrain
2 complaintsExterior lighting
1 complaintsLatches, locks and linkages
1 complaintsSuspension
1 complaints

← All problems reported for the 2023 Toyota Prius Prime

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology