Chevrolet Astro 2003–2004 — technical service bulletin
Bulletin 01012004 · NHTSA communication 10008895 · issued Jan 1, 2004
Technical service bulletin
communication type
Service Brakes, Air
component
2003–2004
model years
4
vehicle entries
Official summary
Anti-lock braking system (abs) light on front wheel speed sensor diagnostic trouble code (dtc) c0221, c0222, c0223, c0225, c0226, c0227, c0229. *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.