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Transmission and drivetrainPart report

2021 Toyota RAV4 Prime Transmission and drivetrain Problems

Complaints
5about this part
Share
5%of 99 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 5 complaints about the transmission and drivetrain of the 2021 Toyota RAV4 Prime, 5% of the 99 complaints for this model year. 1 a fire, according to the filers.

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.

“Toyota issued a recall in July 2023 stating the the DC-DC conversion system may have been damaged in manufacture, potentially causing a short, and possibly leading to a fire if charged at less than 41 degrees. Toyota indicated that a fix would be available in the 4th quarter of 2023. We are nearing the end of the 4th quarter and fix is still not available. Living in upstate New York, nighttime temperatures frequently are less than 41 degrees. As a result I am reluctant to charge overnight. …”

NHTSA complaint #11559489, filed 2023-12

“The vehicle generated an error message Plug In Charging System Malfunction warning on the dash. The remedy is a Toyota T-SB-0021-21 which requires a software upgrade to fix the air fan sensor reading to the charging unit. This is only considered part of the 60 month/60,000 mile power train warranty despite it being part of the battery charging system which has a 150,000 mile warranty. It is also presumably caused by a software error Toyota has made. They should fix this at no cost to the customer, instead I was charged $215 plus tax.”

NHTSA complaint #11734723, filed 2026-04

Related service bulletins

Transmission and drivetrain: other model years

YearComplaintsShare of year
202427%
202312%
2022314%
202155%

Other parts of the 2021 Toyota RAV4 Prime

Electrical system
37 complaints
Other or unknown
26 complaints
Fuel system
18 complaints
Brakes
16 complaints
Forward collision avoidance
10 complaints
Air bags
5 complaints
Vehicle speed control
4 complaints
Engine
3 complaints
Visibility (wipers, defrost, mirrors)
3 complaints
Lane departure
2 complaints
Back-over prevention (rear camera)
1 complaints
Latches, locks and linkages
1 complaints

← All problems reported for the 2021 Toyota RAV4 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