Saturday, August 8, 2026
RecallGazette

Vehicle problems, recalls & safety intelligence

Lexus GS 350 2013–2020technical service bulletin

Bulletin L-TT-0282-20 · NHTSA communication 10173971 · issued Mar 19, 2020

Technical service bulletin
communication type
Engine and Engine Cooling
component
2013–2020
model years
24
vehicle entries

Official summary

TT: Some vehicles may continue to experience abnormal blend door noise when changing the HVAC temperature setting after the air conditioner radiator assembly (evaporator case) was replaced for the same condition.

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.