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Service bulletin T-TT-0673-21

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 id10204561
Published by NHTSA2021-12-13
Manufacturer's numberT-TT-0673-21
Manufacturer's date2021-11-12
NHTSA componentSUSPENSION

NHTSA's summary

TT: Vehicle has an abnormal noise condition when going over speed bumps or irregular roads. Noise is coming from front shock absorber

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

Suspension

Vehicles listed
TOYOTA AVALON2017, 2018, 2019, 2020, 2021
TOYOTA AVALON HYBRID2017, 2018, 2019, 2020, 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.

Other bulletins for the same vehicles and component
T-TT-0673-21 Rev2021-12-13. Service bulletin. TT: Vehicle has an abnormal noise condition when going over speed bumps or irregular roads. Noise is coming from front shock absorber
T-TT-0596-20_Rev2020-06-22. Service bulletin. TT: Some 2020 model year Avalon/HV and Camry/HV may exhibit a creaking noise from the front strut area when turning the steering wheel or while driving during turns.
T-TT-0596-202020-02-18. Service bulletin. TT: Creaking noise during turns (or turning steering wheel) coming from front strut area. 1) Vehicles under 5,000 miles 2) Refer to the attached video as an example of the noise
T-SB-0128-182019-01-07. Service bulletin. TSB: Some 2014 ? 2017 model year Camry and Camry HV vehicles and 2013 ? 2018 model year Avalon and Avalon HV vehicles may exhibit a squeak noise from the front stabilizer bushings. This condition may be present when traveling over rough roads or speed bumps. Follow the Repair Procedure in this bulletin to address this condition.