Chevrolet Silverado 2500 2024 — technical service bulletin
Bulletin 23-NA-066 · NHTSA communication 11017883 · issued Apr 9, 2025
Technical service bulletin
communication type
Electrical System
component
2024
model years
4
vehicle entries
Official summary
This service bulletin refers the technician to Recall N242438501, and if closed, refer to SI to correct the condition of Malfunction Indicator Lamp Illuminated with DTCs P0402, P062D, P144E, P242B, P2459, and/or P2635 Set.
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.