Chevrolet Silverado 2017–2018 — technical service bulletin
Bulletin 16NA372 · NHTSA communication 10137404 · issued Mar 9, 2018
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2018
model years
5
vehicle entries
Official summary
This informational bulletin provides information on common diesel engine tick noises and how they are considered part of normal operation and no parts should be replaced for these conditions.
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.