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Service bulletin T-TT-0665-21

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10202463
Published by NHTSA2021-10-25
Manufacturer's numberT-TT-0665-21
Manufacturer's date2021-09-10
NHTSA componentELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE

NHTSA's summary

TT: Special Service Campaign 21TC05 applies to the following condition: The fuel gauge needle and the ?distance to empty? estimated in the vehicle display accurately indicate the approximate amount of remaining fuel in the fuel tank. However, some drivers are continuing to drive after the low fuel light illuminates, causing them to potentially run out of fuel and be inconvenienced. NOTE: Highlander HV fuel gauge issues, such as, fuel gauge not reading full or tank capacity does not meet expectations DO NOT apply to 21TC05.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Instrument cluster

Vehicles listed
TOYOTA HIGHLANDER HYBRID2020, 2021 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.