Cadillac Deville 2003 — technical service bulletin
Bulletin 011403 · NHTSA communication 10005101 · issued Jan 14, 2003
Technical service bulletin
communication type
Electrical System
component
2003
model years
2
vehicle entries
Official summary
Diagnostic trouble code p0503, vehicle speed sensor circuit intermittent. Customer may describe the condition as the speedometer intermittently goes to zero, the vehicle may jerk at times, they are unable to set the cruise, the cruise may intermittently dropout. Gm voicemail express. *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.