Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin PIP5879B · NHTSA communication 10232841 · issued Feb 28, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2023
model years
2
vehicle entries
Official summary
This Preliminary information communicates that the exhaust aftertreatment catalytic converter assemble w/filter is on a parts restriction.
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.