2020 Toyota 4RUNNER Electrical system Problems
- Complaints
- 1about this part
- Share
- 3%of 33 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 1 complaints about the electrical system of the 2020 Toyota 4RUNNER, 3% of the 33 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.
“The door actuator have been replaced a minimum of eight times. Huge safety risk involved since we never know if the vehicle is going to lock. Toyota continues to replace them but not addressing the underlying issue. Not sure if this is all related but the blower motor has been replaced 3- 4 times and the battery has been replaced 4 times”
NHTSA complaint #11760224, filed 2026-08Related service bulletins
- 11028726Jan 30, 2026OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
- 11028722Jan 28, 2026Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 11020657Jun 13, 2025The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service…
- 11019332Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11018329Apr 2, 2025To assist with the early detection and early resolution of audio related concerns you may be asked to recover MMR data from the head unit. The following steps are instructions on…
- 11016786Feb 11, 2025Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 11015500Feb 11, 2025Some 2018 – 2024 model year Toyota vehicles equipped with a Premium Audio with Dynamic Navigation System require a Special Service Tool (SST) USB flash drive to update the map…
- 10247828Nov 28, 2023TSB: All 2020 ? 2023 model year 4Runner, 2018 ? 2022 model year Sequoia, 2018 ? 2023 model year Tacoma, and 2018 ? 2021 model year Tundra vehicles are equipped with Pre-collision…
- 10238157May 30, 2023TSB: The Immobilizer and Smart Key Reset is a feature that allows the registration of new keys when all master keys are lost. Once the system is reset, all previously registered…
- 10210365Mar 3, 2022TT: Vehicle control apps might not operate as expected at times due to preconditions (normal operating parameters) not being established, vehicle settings and/or network/cellular…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 14% |
| 2025 | 8 | 13% |
| 2024 | 2 | 20% |
| 2022 | 2 | 5% |
| 2021 | 3 | 8% |
| 2020 | 1 | 3% |
| 2019 | 8 | 12% |
| 2018 | 4 | 7% |
| 2017 | 5 | 14% |
| 2016 | 18 | 22% |
| 2015 | 13 | 15% |
| 2014 | 24 | 31% |
| 2013 | 4 | 11% |
| 2012 | 6 | 6% |
| 2011 | 6 | 4% |
| 2010 | 4 | 3% |
| 2009 | 4 | 18% |
| 2008 | 5 | 5% |
| 2007 | 13 | 8% |
| 2006 | 18 | 5% |
| 2005 | 9 | 2% |
| 2004 | 22 | 3% |
| 2003 | 12 | 2% |
| 2002 | 3 | 1% |
| 2001 | 6 | 3% |
| 2000 | 4 | 1% |
| 1999 | 17 | 5% |
| 1998 | 11 | 4% |
| 1997 | 6 | 2% |
| 1996 | 3 | 2% |
| 1995 | 6 | 3% |
| 1993 | 5 | 10% |
| 1992 | 6 | 11% |
| 1990 | 1 | 1% |
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 complaintsElectronic stability control
1 complaintsFuel system
1 complaints
← All problems reported for the 2020 Toyota 4RUNNER
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 29, 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