Cadillac Deville 2003 — technical service bulletin
Bulletin 11272002 · NHTSA communication 10008611 · issued Nov 27, 2002
Technical service bulletin
communication type
Electrical System
component
2003
model years
2
vehicle entries
Official summary
Auto transmission diagnostic trouble code p0503, vehicle speed sensor circuit intermittent. *tt
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.