Chevrolet Astro 2002 — technical service bulletin
Bulletin 040602 · NHTSA communication 637186 · issued Jun 4, 2002
Technical service bulletin
communication type
Steering
component
2002
model years
4
vehicle entries
Official summary
The subject of this service voicemail is for the vehicle theft deterrent, vtd, learn procedure. *tt
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.