Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Toyota Avalon 2018–2021technical service bulletin

Bulletin T-TT-0615-20 · NHTSA communication 10177575 · issued Jun 1, 2020

Technical service bulletin
communication type
Engine
component
2018–2021
model years
23
vehicle entries

Official summary

TT: The Toyota Quality group is looking to better understand our customers expectation regarding vehicle drivability. Specifically, we are looking at vehicle surge/hesitation condition (inconsistent acceleration) and would like to recover detailed customer voice and vehicle data.

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.