Toyota 4RUNNER 2020 — technical service bulletin
Bulletin T-TT-0593-20 · NHTSA communication 10171697 · issued Jan 7, 2020
Technical service bulletin
communication type
Equipment
component
2020
model years
8
vehicle entries
Official summary
TT: Some customers may experience the Remote Connect becoming inoperative when attempting to send commands to the vehicle. To simplify the diagnosis of this system and prevent the unnecessary replacement of parts, please refer to the procedure below.
Vehicles covered
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.