Toyota Highlander 2019 — technical service bulletin
Bulletin T-TT-0517-18 · NHTSA communication 10153237 · issued Dec 18, 2018
Technical service bulletin
communication type
Equipment
component
2019
model years
1
vehicle entries
Official summary
TT: Voice navigation prompts and feedback beeps are inoperative after starting the engine. This condition only occurs on Platinum grade vehicles.
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.