Toyota Highlander 2020 — technical service bulletin
Bulletin T-SB-0105-20 · NHTSA communication 10183272 · issued Oct 18, 2020
Technical service bulletin
communication type
Electrical System
component
2020
model years
1
vehicle entries
Official summary
TSB: Some 2020 model year Highlander vehicles may exhibit a shift flare condition during wide open throttle (WOT) acceleration from 40 ? 60 mph and during the upshift from 2nd to 3rd. The Engine Control Module (ECM) (SAE term: Powertrain Control Module/PCM) logic has been modified to reduce the possibility of this condition. 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.