Toyota Highlander 2021 — technical service bulletin
Bulletin T-TT-0650-21 · NHTSA communication 10198128 · issued May 11, 2021
Technical service bulletin
communication type
Equipment
component
2021
model years
3
vehicle entries
Official summary
TT: Some vehicles equipped with Premium Audio systems may experience an inoperative condition that consists of displaying a ?Loading?? then a blank screen when pressing the MAP button. When performing the Storage Check in the Radio Diagnostic Menu, the MEU Storage Check displays: NG.
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.