Chevrolet Tahoe 2021 — technical service bulletin
Bulletin N232408730 · NHTSA communication 10245392 · issued Nov 21, 2023
Technical service bulletin
communication type
Exterior Lighting
component
2021
model years
1
vehicle entries
Official summary
Service Update. Certain Vehicles may not have the emergency light flashers enabled. Dealers are to reprogram the body control module and lighting control module.
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.