2018 Toyota Tundra service brakes problems
22 owner complaints filed with NHTSA name the service brakes on the 2018 Toyota Tundra — 22% of all complaints for this model year.
What owners report
“This case results from the malfunctioning trailer brake ECU on 2018-2019 Tundras. There is a Toyota service bulletin T-SB-0036-19, which specifies an updated controller to replace the defective model. Part # : Original 89547-0C020 Update/replacement 89547-0C060 Toyota will not replace this…”
filed Oct 10, 2024
“I am having problems with the integrated brake controller constantly disconnecting when pulling any type of trailer. When ever I pull a trailer I never know when the controller will disconnect and I'll lose brakes on my trailer. This happens at any speed while towing. This seems to be a thing for…”
filed Jan 19, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Service Brakes problems in other Tundra years
| Year | Reports | Share |
|---|---|---|
| 2026 Tundra | 2 | 9% |
| 2025 Tundra | 5 | 4% |
| 2024 Tundra | 20 | 6% |
| 2023 Tundra | 27 | 7% |
| 2022 Tundra | 30 | 7% |
| 2020 Tundra | 4 | 9% |
| 2019 Tundra | 8 | 11% |
| 2017 Tundra | 13 | 17% |
| 2016 Tundra | 34 | 29% |
| 2015 Tundra | 8 | 17% |
| 2014 Tundra | 7 | 8% |
| 2013 Tundra | 4 | 5% |
Other reported problem areas on the 2018 Toyota Tundra
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.