Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2004 Cadillac DeVille Protection SeriesFACTORY OEM SERVICE PROCEDURE
Cruise Control DTCS
CRUISE CONTROL DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description |
|---|---|
| DTC P0574 | Vehicle Speed Too High - Cruise Control Disabled |
| DTC P1554 | Cruise Control Feedback Circuit |
| DTC P1560 | Transaxle Not in Drive - Cruise Control Disabled |
| DTC P1564 | Vehicle Acceleration Too High - Cruise Control Disabled |
| DTC P1566 | Engine RPM Too High - Cruise Control Disabled |
| DTC P1567 | Active Banking Control Active - Cruise Control Disabled |
| DTC P1570 | Traction Control Active - Cruise Control Disabled |
| DTC P1574 | Stoplamp Switch Circuit |
| DTC P1575 | Extended Travel Brake Switch Circuit |
| DTC P1585 | Cruise Control Inhibit Output Circuit |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.