Toyota Grand Highlander 2024 — technical service bulletin
Bulletin TTT074223 · NHTSA communication 10247802 · issued Nov 9, 2023
Technical service bulletin
communication type
Fuel System, Gasoline
component
2024
model years
2
vehicle entries
Official summary
TT: Some 2024 Grand Highlander / Grand Highlander Hybrid vehicles may have a concern of difficult to add more than 12 to 15 gallons of fuel from an empty condition. After refueling the gauge reads full.
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.