OBSOLETE NOTICE January 30, 2026: This bulletin is now obsolete. Please see T-SB-0001-26.
full bulletin at NHTSA ↗2021 Toyota Tundra electrical problems
severe Owners of the 2021 Toyota Tundra have filed 4 NHTSA complaints about the electrical at roughly $850 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See electrical across all vehicles →
Complaints
4
Recalls
0
Avg fix
$850
| Model year | electrical complaints |
|---|---|
| 2017 Tundra | 27 |
| 2018 Tundra | 26 |
| 2019 Tundra | 12 |
| 2020 Tundra | 3 |
| 2021 Tundra (this page) | 4 |
| 2022 Tundra | 23 |
| 2023 Tundra | 29 |
| 2024 Tundra | 28 |
| 2025 Tundra | 9 |
1fire
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering electrical on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
Some 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, points of interest, and system software.
full bulletin at NHTSA ↗The 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 Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
full bulletin at NHTSA ↗To 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 how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
full bulletin at NHTSA ↗To 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 how to retrieve the data from the system and are only to be used when requested by FTS and/or FPE.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
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.
LED lights are loose and rattle and flash all over the place. While driving over 40+mph or going over any bumps on the road . This only affects TRD PRO tundra’s with factory Ridgid lights . Toyota does not have a toyota approved repair even after going to dealership multiple times and calling toyota USA . They will not do anything for this safety issue besides offer lemon law options . Toyota…
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
Had electrical trouble with your 2021 Toyota Tundra?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the electrical problem on the 2021 Toyota Tundra?
It's a meaningful issue. 4 complaints have been filed and the failure mode causes operational problems for owners. Repairs average $850.
At what mileage does the electrical typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $850 for electrical repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to electrical?
No active recalls currently cover electrical issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2021/Toyota/Tundra.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.