2020 Toyota 4RUNNER Transmission and drivetrain Problems
- Complaints
- 1about this part
- Share
- 3%of 33 total for the year
- Median mileage
- 1,100miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the transmission and drivetrain of the 2020 Toyota 4RUNNER, 3% of the 33 complaints for this model year. Where a mileage was given, the median is 1,100 miles.
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.
“Brakes are not functioning properly, the pedal goes way down to the floor before engaging any brakes. At idle the brakes seem to function fine, after driving at about 10mph the brakes go back to not working again. Dealership says the brakes are normal and I was told to drive it home even though it was still having the issue. Transmission is not shifting properly either, it gets stuck at 4000-5000 RPM sometimes and then shifts into the next gear. The braking issue occurred even worse going down a hill at 55mph right before it went in for service.”
NHTSA complaint #11362080, filed 2020-09, 1,100 milesRelated service bulletins
- 10224177Sep 26, 2022TT: If you see this condition, please create a TAS case and contact TAS for instruction prior to diagnosing or repairing of the vehicle. If it is a weekend or holiday, continue…
- 10202449Sep 2, 2021TSB: Some 2019 ? 2020 model year 4Runner vehicles may exhibit a grease leak from the edge of the inboard joint boot of a front drive shaft where the clamp is located. This…
- 10164330Jul 1, 2019TSB: REVISION NOTICE July 01, 2019 Rev2: ? Applicability has been updated to 2019 ? 2020 model year Toyota vehicles. ? The Techstream Preparation and Process Overview sections…
Transmission and drivetrain: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 3 | 38% |
| 2025 | 2 | 3% |
| 2023 | 2 | 6% |
| 2022 | 1 | 3% |
| 2021 | 1 | 3% |
| 2020 | 1 | 3% |
| 2019 | 4 | 6% |
| 2018 | 3 | 5% |
| 2017 | 1 | 3% |
| 2016 | 6 | 7% |
| 2015 | 4 | 5% |
| 2014 | 1 | 1% |
| 2013 | 1 | 3% |
| 2011 | 6 | 4% |
| 2010 | 5 | 3% |
| 2009 | 10 | 45% |
| 2008 | 27 | 28% |
| 2007 | 11 | 7% |
| 2006 | 30 | 8% |
| 2005 | 25 | 6% |
| 2004 | 36 | 5% |
| 2003 | 39 | 6% |
| 2002 | 33 | 15% |
| 2001 | 32 | 17% |
| 2000 | 42 | 9% |
| 1999 | 23 | 7% |
| 1998 | 12 | 5% |
| 1997 | 25 | 10% |
| 1996 | 5 | 3% |
| 1995 | 14 | 8% |
| 1994 | 3 | 5% |
| 1993 | 3 | 6% |
| 1992 | 4 | 8% |
| 1991 | 5 | 12% |
| 1990 | 14 | 18% |
| 1988 | 2 | 22% |
| 1987 | 2 | 40% |
Other parts of the 2020 Toyota 4RUNNER
9 complaintsAir bags
5 complaintsBrakes
5 complaintsSteering
4 complaintsSuspension
4 complaintsBack-over prevention (rear camera)
3 complaintsForward collision avoidance
3 complaintsExterior lighting
2 complaintsBody and structure
2 complaintsWheels
2 complaintsElectrical system
1 complaintsElectronic stability control
1 complaints
← All problems reported for the 2020 Toyota 4RUNNER
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