Toyota Tundra 2018–2019 — technical service bulletin
Bulletin T-SB-0036-19 · NHTSA communication 10159681 · issued Apr 1, 2019
Technical service bulletin
communication type
Electrical System
component
2018–2019
model years
2
vehicle entries
Official summary
TSB: Some 2018 ? 2019 model year Tundra vehicles equipped with integrated trailer brake controllers may exhibit an intermittent ?Trailer Disconnected? message in the combination meter while towing a trailer. Follow the Repair Procedure in this bulletin to address this condition.
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.