Chevrolet Blazer 2019–2021 — technical service bulletin
Bulletin 19NA111 · NHTSA communication 10212556 · issued Dec 13, 2021
Technical service bulletin
communication type
Equipment
component
2019–2021
model years
3
vehicle entries
Official summary
This technical bulletin provides repair information to correct a customer concern of hearing a ticking noise coming from upper B-pillar area.
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.