Toyota Avalon Hybrid 2019–2022 — technical service bulletin
Bulletin T-TT-0694-22 · NHTSA communication 10211794 · issued Apr 6, 2022
Technical service bulletin
communication type
Electrical System
component
2019–2022
model years
18
vehicle entries
Official summary
TT: After jump-starting, the vehicle may experience a no-start condition and multiple DTCs including U010087. Upon investigation, it is found that the engine ECU has been damaged and needs to be replaced (Fig 1). In several cases, it was found that the cause of the ECU damage was improper jump starting. Further investigation found that ECU damage may occur if the jumper cables are hooked up on or around the engine ECU or ECU mounting bracket
Vehicles covered
- 2019 Toyota Avalon Hybrid
- 2020 Toyota Avalon Hybrid
- 2021 Toyota Avalon Hybrid
- 2022 Toyota Avalon Hybrid
- 2020 Toyota Camry Hybrid
- 2021 Toyota Camry Hybrid
- 2022 Toyota Camry Hybrid
- 2020 Toyota Highlander Hybrid
- 2021 Toyota Highlander Hybrid
- 2022 Toyota Highlander Hybrid
- 2019 Toyota RAV4 Hybrid
- 2020 Toyota RAV4 Hybrid
- 2021 Toyota RAV4 Hybrid
- 2022 Toyota RAV4 Hybrid
- 2021 Toyota Sienna Hybrid
- 2022 Toyota Sienna Hybrid
- 2021 Toyota Venza Hybrid
- 2022 Toyota Venza Hybrid
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.