Chevrolet Blazer 2019–2025 — technical service bulletin
Bulletin PIT6354 · NHTSA communication 11015943 · issued Mar 21, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2019–2025
model years
7
vehicle entries
Official summary
This Preliminary information communicates A vehicle may be encountered with door chimes, dome lamps, mirrors inop or a radio that will not shut off when the door is opened. The tech is directed to inspect X500 and X600 for water intrusion. The A pillar body plugs are to be replaced and sealed.
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.