Chevrolet Traverse 2024 — technical service bulletin
Bulletin 24-NA-128 · NHTSA communication 11009470 · issued Sep 26, 2024
Technical service bulletin
communication type
Electrical System
component
2024
model years
2
vehicle entries
Official summary
This service bulletin provides information for dealers/technicians on Powertrain Control Module K45 Software Update for SDAC (Serial Data Authentication Configuration) Failures.
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.