2018 Toyota Prius Prime Transmission and drivetrain Problems
- Complaints
- 2about this part
- Share
- 13%of 16 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the transmission and drivetrain of the 2018 Toyota Prius Prime, 13% of the 16 complaints for this model year.
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.
“On at least 4 occasions when the EV battery becomes depleted while driving at highway speeds and the car is switching to gas, the engine completely loses all power. This has lasted from 10-30 seconds. The dealership said a small battery needed to be replaced, and replaced that, but this recurred within a month of replacement.”
NHTSA complaint #11723385, filed 2026-03“Take foot of break, car accelerates under power. Sooner or later, this is going to result in killing a pedestrian. The question has been for the last year, is this a behavior that can be gotten used to. The answer is definitely NO! This resulted in a near collision with a pedestrian today. Toyota believes the behavior is intentional and will not confirm the safety issue. Farmers Insurance is willing to believe the issue exists without inspection but has no idea what to do. You have a problem on your hands. …”
NHTSA complaint #11517150, filed 2023-04Transmission and drivetrain: other model years
Other parts of the 2018 Toyota Prius Prime
3 complaintsAir bags
2 complaintsFuel system
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsBack-over prevention (rear camera)
1 complaintsBrakes
1 complaintsElectrical system
1 complaintsEngine
1 complaintsExterior lighting
1 complaintsForward collision avoidance
1 complaintsLatches, locks and linkages
1 complaintsBody and structure
1 complaints
← All problems reported for the 2018 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