Toyota 4RUNNER 2020 — technical service bulletin
Bulletin T-TT-0588-19 · NHTSA communication 10171695 · issued Jan 7, 2020
Technical service bulletin
communication type
Electrical System
component
2020
model years
8
vehicle entries
Official summary
TT: Some 2020 model year vehicles may display abnormal Safety Connect operation during PDS due to DCM activation issues. This condition is characterized by no DTCs present and after the initial SOS light flashing sequence after ignition on, neither the red nor green light stays on in the overhead console. To determine if a vehicle is experiencing this condition, connect a Techstream and navigate to: Telematics-Data List - ?Telematics Activation Status?. If this value is displayed as ?Shipping?, continue to the recommendations below, and do not create a TAS case.
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.