Chevrolet Silverado 1500 2020 — technical service bulletin
Bulletin N232430460 · NHTSA communication 10249404 · issued Jan 29, 2024
Technical service bulletin
communication type
Engine and Engine Cooling
component
2020
model years
2
vehicle entries
Official summary
Special Coverage. Certain vehicles may have a condition that could cause the engineâ s cylinder 2 glow plug to fail. If this condition occurs, the Malfunction Indicator Lamp (Check Engine Light) will illuminate, and a diagnostic trouble code will set. Dealers are to replace the cylinder 2 glow plug as necessary. The repairs will be made at no charge to the customer.
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.