Chevrolet Suburban 1500 2023–2024 — technical service bulletin
Bulletin PIT6307 · NHTSA communication 11012023 · issued Dec 17, 2024
Technical service bulletin
communication type
Unknown OR Other
component
2023–2024
model years
8
vehicle entries
Official summary
This Preliminary information communicates with dealers a diagnostic aid for unwanted chime from front park assist sensor harness chaffing.
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.