Toyota 4RUNNER 2020 — technical service bulletin
Bulletin T-TT-0593-20_Rev · NHTSA communication 10171410 · issued Jan 29, 2020
Technical service bulletin
communication type
Electrical System
component
2020
model years
8
vehicle entries
Official summary
TT: Some customers may experience the inability to activate Remote Connect or 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.