Chevrolet Colorado 2017–2018 — technical service bulletin
Bulletin PIP5543A · NHTSA communication 10137489 · issued Apr 5, 2018
Technical service bulletin
communication type
Fuel System, Diesel
component
2017–2018
model years
8
vehicle entries
Official summary
This Preliminary information communicates to dealer technicians a repair direction for a whine or siren type noise coming from the in tank fuel pump in cold weather areas due to possible diesel fuel waxing or gelling issues.
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.