2019 Toyota Tundra Electrical System Problems
Owners filed 16 Electrical System complaints for the 2019 Toyota Tundra, 22% of all complaints that year, with a median failure mileage of 8,616. Three related recalls exist covering headlight wiring, turn signal wiring, and the air bag ECU.
- Electrical System complaints
- 16
- 22% of 72
- Crashes reported
- 1
- Fires reported
- 1
- Injuries reported
- 1
- Median mileage
- 8,617 mi
- Related recalls
- 3
Typical electrical symptoms owners report
- Front turn signal bulbs appear too dim and are drowned out by LED daytime running lights and headlights, making the truck hard to see when turning.
- Headlight wiring can overheat, and one owner reported flames coming from the driver's side headlight after noticing a burning plastic smell.
- Trailer brake systems intermittently show error messages such as "Trailer disconnect" or "Trailer brake error," sometimes affecting trailer braking while towing.
- Multiple warning systems can activate at once, including Pre-Collision System, Blind Spot Monitor, Rear Cross Traffic Alert, and ABS warnings appearing together.
- Adaptive cruise control and pre-collision systems can shut off with a "radar cruise control unavailable, clean sensor" message, sometimes followed by automatic hard braking.
- A seat heater control module reportedly failed and caused plastic to burn and melt.
When 2019 Toyota Tundra electrical complaints were filed
First complaint Feb 9, 2019, latest Apr 14, 2026.
Electrical System recalls for the 2019 Toyota Tundra
- NHTSA 21V688000Sep 2, 2021Electrical System158,489 vehicles
Exterior lighting:headlights
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2021 Tundra vehicles. The headlight electrical circuits may power the high and low beams simultaneously, which could overheat the electrical connector.
Risk: An overheated electrical connector can increase the risk of a fire.
Remedy: Dealers will modify the engine wire harness assembly and replace any damaged bulb, bulb connector, and/or headlight assembly as necessary, free of charge. Owner notification letters were mailed April 25, 2022. Owners may contact Toyota customer service at 1-800-331-4331. Toyota's numbers for this recall are 21TB06 and 21TA06.
- NHTSA 20V410000Jul 15, 2020Electrical System183,397 vehicles
Exterior lighting:turn signal
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2020 Toyota Tundra vehicles equipped with LED headlight assemblies. Due to a wiring error, the front turn signals may not flash brightly enough. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."
Risk: If the turn signals or hazard lamps do not flash brightly enough, other drivers may fail to see that the turn signal or hazard lamp functions have been activated, increasing the risk of a crash.
Remedy: Toyota will notify owners, and dealers will modify the wire harness connected to the front turn signal bulbs free of charge. The recall began August 17, 2020. Owners may contact Toyota customer service at 1-800-270-9371. Toyota's number for this recall is 20TB12/20TA12.
- NHTSA 18V685000Oct 4, 2018Electrical System168,187 vehicles
Electrical system:software
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2018-2019 Toyota Tundra and Sequoia vehicles and 2019 Toyota Avalon and Avalon Hybrid vehicles. The air bag electronic control unit (ECU) may erroneously detect a fault during the vehicle start-up self check. If this occurs, the ECU may not deploy the airbags as intended, in the event of a crash. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 208, "Occupant Crash Protection," and 214, "Side Impact Protection."
Risk: If the air bags do not deploy as intended, it can increase the risk of injury in a crash.
Remedy: Toyota will notify owners, and dealers will update the software for the air bag ECU, free of charge. The recall began October 26, 2018. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0X. Note: 18V-122 was superseded by this recall. The software remedy also includes the updates to the software for 18V-122.
Electrical System complaints by Tundra model year
Raw complaint counts per model year; newer years have had less time to accumulate complaints.
Frequently asked questions
- How many electrical complaints does the 2019 Toyota Tundra have?
- NHTSA lists 16 Electrical System complaints for the 2019 Toyota Tundra, which is 22% of all complaints filed for that model year.
- Is there a recall for the 2019 Toyota Tundra electrical system?
- Yes. NHTSA lists three related recalls: headlight circuits that can overheat (21V688000), turn signal wiring errors (20V410000), and an air bag ECU software issue (18V685000).
- At what mileage do electrical problems typically appear on the 2019 Tundra?
- The median mileage at failure for Electrical System complaints on the 2019 Tundra is 8,616 miles.
- Did the 2019 Tundra electrical issues cause any fires or crashes?
- NHTSA data for this component and year shows 1 fire, 1 crash, and 1 injury among the reported complaints.