Recall 20V410 affects 183,397 2018-2020 Toyota Tundra trucks for dim front turn signals. Repair is free at any franchised Toyota dealer.
Toyota is recalling 183,397 2018-2020 Tundra trucks with LED headlight assemblies because a wiring error leaves the front turn signals and hazard lamps too dim. Other drivers can miss those signals, increasing the risk of a crash, and Toyota dealers will repair the lighting issue free of charge.
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What's wrong?
The engine room main wire harness on affected 2018-2020 Toyota Tundra trucks carries electrical power and signal routing through the front lighting system. For the front turn signals, that harness connects the circuit to the bulbs in the LED headlight assemblies. When the driver signals a turn or lane change, the correct wiring path lets the bulb flash at the required brightness so other drivers can see the signal.
On these Tundras, a design drawing error led to an incorrectly assembled harness for the front turn signal bulbs. The wiring uses the wrong filament path, so the front turn signal still flashes but does not shine as brightly as Toyota intended. That lower brightness is the defect, and it caused the trucks to fall short of the federal lighting standard for turn-signal visibility.
There is no warning sign before failure. An owner can see the signal flashing, but the problem is that the front signal output is too dim compared with the required level.
Who's affected?
The same engine room main wire harness is tied to both the turn signal and wiring components across the 2018, 2019, and 2020 Tundra model years.
| 2019 Toyota Tundra | Turn signal |
|---|---|
| 2019 Toyota Tundra | wiring |
| 2018 Toyota Tundra | Turn signal |
| 2018 Toyota Tundra | wiring |
| 2020 Toyota Tundra | Turn signal |
| 2020 Toyota Tundra | wiring |
| Units affected | 183,397 |
| Field incidents | NHTSA has logged no field incidents to date. |
The year and model narrow the scope, but the VIN decides. Check your VIN to confirm whether your specific pickup truck is included.
What's the safety risk?
Dim turn signals or hazard lamps make it harder for other drivers to see your signal or hazard warning, which increases crash risk. Until the harness repair is done, signal early, leave extra space, and schedule service soon. Repair is free at any franchised Toyota dealer.
What should I do?
- Check your VIN to confirm your 2018-2020 Toyota Tundra is included in this recall.
- Contact a franchised Toyota dealer to schedule the free wire-harness repair that restores proper front turn signal and hazard lamp brightness.
- Bring the recall notice if Toyota sent one, and reference recall number 20V410 when you call.
- Confirm the front turn signals and hazard lamps are visible before each trip until the repair is complete.
- Call Toyota customer service at 1-800-270-9371 with questions about Toyota recall 20TB12/20TA12.
What happens at the repair
At the dealer, a Toyota technician modifies the wire harness connected to the front turn signal bulbs so the LED turn signals meet the required brightness. The recall repair is free, with parts and labor covered. Toyota's reimbursement statement points to warranty coverage rather than a separate reimbursement program: the owner letters were mailed within the active Toyota New Vehicle Limited Warranty period, so involved owners would have received the repair at no cost under warranty. Ask the service desk how warranty coverage applies to prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| July 15, 2020 | NHTSA published the recall |
|---|---|
| July 15, 2020 | Dealer notification began |
| July 15, 2020 | Dealer notification ended |
| August 17, 2020 | Owner notification mailed |
| September 7, 2020 | Interim owner notification (was planned for this date) |
Frequently asked questions
What is recall 20V410?
Recall 20V410 covers 183,397 2018-2020 Toyota Tundra trucks equipped with LED headlight assemblies. A wiring error can make the front turn signals and hazard lamps too dim for other drivers to notice. Toyota dealers modify the wire harness for free.
What should I do if my 2018-2020 Toyota Tundra is on this recall?
Check your VIN to confirm your specific truck is included in recall 20V410. If it is, contact a franchised Toyota dealer to schedule the front turn signal wire harness repair. Reference recall 20V410 or Toyota recall 20TB12/20TA12 when you call.
Is the recall repair free?
Yes. Federal recall law requires manufacturers to repair safety defects and noncompliances at no cost. Toyota dealers will modify the wire harness connected to the front turn signal bulbs free of charge.
What is the safety risk?
The safety risk is that other drivers do not see your turn signal or hazard lamps when they are activated. That can leave nearby drivers without a clear warning before you turn, change lanes, or stop for a hazard, increasing crash risk.
What if I bought my Toyota Tundra used?
The free recall repair still applies. Recall coverage follows the vehicle, not the first owner. Check your VIN to confirm whether your specific Tundra is included, then contact a franchised Toyota dealer and reference recall 20V410.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/20V410000 |
|---|---|
| Toyota customer service | 1-800-270-9371 |
| NHTSA recall # | 20V410 |
| NHTSA recall # (full) | 20V410000 |
Source documents
-
Download Recall Document (PDF) (PDF) - Download Recall Document (PDF) (PDF)
- Download Quarterly Report (PDF)
- Download Misc. Document (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Owner Notification Letter (PDF)
- Download Owner Notice (PDF)
- Download Recall Report (PDF)
- Download Recall Acknowledgement (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 23, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →