Chevrolet Silverado 1500 2020–2024 — technical service bulletin
Bulletin PIT6177A · NHTSA communication 11007736 · issued Sep 12, 2024
Technical service bulletin
communication type
Suspension
component
2020–2024
model years
10
vehicle entries
Official summary
This Preliminary information communicates an issues of the left rear leaf spring making a squeaking noise due to diesel fuel contamination that may occur during refueling after the fuel nozzle is removed from the fuel filler pipe. Dealers are to create a foam seal around the fuel filler pipe to prevent fuel from leaking onto the left spring.
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.