2021 Toyota Tundra Electrical system Problems
- Complaints
- 4about this part
- Share
- 17%of 24 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 4 complaints about the electrical system of the 2021 Toyota Tundra, 17% of the 24 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.
“When I turn the key to crank my radio doesn’t come on , A/C won’t blow and I have to jiggle the keys or restart it to end the issue. My husband has witnessed thi happen many times. Scared I might have an electrical issue. Contact me back for assistance to me for this issue please. It doesn’t happen every time either.”
NHTSA complaint #11692748, filed 2025-10“The software in the combination meter's electronic control Instrument Panel LCD display frequently goes blank I have taken my vehicle at least 5 times since I bought it 18 months ago as a new vehicle and it is yet to be remedied. This is the same issue that the 2022 Thundra has, 2021 should be included in the recall as well to remedy this problem”
NHTSA complaint #11510734, filed 2023-03“Wayne drove the truck to work. It was an icy day in Texas so he drove slower than usual. He went to pick up a part (for work) from another shop, he arrived at the shop, turned off the truck and went inside to retrieve the part for work. A few minutes later he came out to his truck and the hazard lights were blinking. He did not turn them on. He then noticed the cab of the truck filled with black smoke, he opened the door, raised the hood to take off the battery cables. The fire destroyed his dash and all electrical in the dash. …”
NHTSA complaint #11450576, filed 2022-02Related 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…
- 11014193Jan 23, 2025OBSOLETE NOTICE January 23, 2025: This bulletin is now obsolete. Please see T-SB-0011-25.
- 11014190Jan 23, 2025When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results…
- 11003621Apr 11, 2024When certain vehicle ECUs are replaced, the ECU Security Key must be written in order for that ECU to communicate on the vehicle network. The GTS+ Software Health Check Results…
Electrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2026 | 1 | 3% |
| 2025 | 13 | 9% |
| 2024 | 37 | 11% |
| 2023 | 41 | 10% |
| 2022 | 29 | 7% |
| 2021 | 4 | 17% |
| 2020 | 4 | 9% |
| 2019 | 13 | 18% |
| 2018 | 26 | 26% |
| 2017 | 27 | 35% |
| 2016 | 26 | 22% |
| 2015 | 8 | 16% |
| 2014 | 19 | 20% |
| 2013 | 11 | 13% |
| 2012 | 19 | 12% |
| 2011 | 21 | 16% |
| 2010 | 16 | 10% |
| 2009 | 4 | 11% |
| 2008 | 38 | 12% |
| 2007 | 24 | 6% |
| 2006 | 16 | 3% |
| 2005 | 17 | 5% |
| 2004 | 13 | 3% |
| 2003 | 6 | 2% |
| 2002 | 9 | 2% |
| 2001 | 3 | 1% |
| 2000 | 11 | 1% |
Other parts of the 2021 Toyota Tundra
6 complaintsSeats
4 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsExterior lighting
2 complaintsForward collision avoidance
2 complaintsFuel system
2 complaintsSteering
2 complaintsBody and structure
2 complaintsAir bags
1 complaintsEngine
1 complaintsTires
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 2021 Toyota Tundra
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