Mazda MAZDA3 2019–2021 — technical service bulletin
Bulletin 09-018-21-3796 · NHTSA communication 10198572 · issued Jun 17, 2021
Technical service bulletin
communication type
Structure
component
2019–2021
model years
3
vehicle entries
Official summary
Some vehicles may exhibit that the liftgate interferes with the rear bumper when closed forcefully, resulting in damaged paint on the rear bumper. Due to variations of the clearance between the liftgate and the rear bumper, the bottom edge of the liftgate may overrun the rear bumper. To correct this concern, the following steps have been taken: Phase 1 - The hardness of stop rubbers on the liftgate has been modified for VINS greater than JM1BP*****300045 (produced after June 16, 2020). Phase 2 - A cushioning pad has been added to the hollow part in the liftgate weatherstrip (in addition to Pha
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.