GMC Acadia 2007–2008 — technical service bulletin
Bulletin PIT4578A · NHTSA communication 10151833 · issued Nov 13, 2018
Technical service bulletin
communication type
Electrical System
component
2007–2008
model years
2
vehicle entries
Official summary
This Preliminary information communicates the normal operation of this lighting system with RPO TVD.
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.