P1260 Theft Detected Vehicle Immobilized

Possible causes
  • Previous theft condition.
  • Anti-theft system failure
    • Tech notes
    Theft indicator flashing rapidly or on solid when ignition switch is in the ON position. Check anti-theft system for DTCs. Typical vehicle symptoms are: start/stall or crank/no start. NOTE: No crank symptom only on vehicles equipped with PATS starter disable feature.
    Symptoms
    – Engine Light ON (or Service Engine Soon Warning Light)
    P1260 Description
    Indicates the passive anti-theft system (PATS) determined a theft condition existed and the engine is disabled. This DTC is a good indicator to check the PATS for DTCs.
    P1260 Information for specific makes
    P1260 BUICK
    P1260 CADILLAC
    P1260 CHEVROLET
    P1260 FORD
    P1260 GMC