Chevrolet Silverado 2500 2024 — technical service bulletin
Bulletin 661.10 · NHTSA communication 11033772 · issued Jun 9, 2026
Technical service bulletin
communication type
Unknown / Other
component
2024
model years
2
vehicle entries
Official summary
• Improvements to help reduce check engine light activation and emissions system messages • Improvements to reliability when extending the running boards on your vehicle • Fixes to help ensure proper functionality for heating and cooling features • Improvements to night mode lights for shifting gears • Fixes for Daytime Running Lamps turning on when set to Off • Fixes to help prevent erroneous missing key messages on driver display • Fixes for accuracy of low tire pressure alert • Fixes for speed threshold for pedestrian alerts • Improvements to active cabin ventilation • Additional protection
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.