2004 Cadillac DeVille service and repair manual — a detailed, factory-style reference for maintenance, diagnostics, and repair. Use it to confirm correct procedures, specifications, and system coverage before you start work.
Built for technicians and DIY owners, this manual helps you troubleshoot accurately, follow step-by-step repair procedures, and use wiring diagrams and system sections to diagnose problems faster.
What’s included
- Step-by-step repair procedures and service information
- Specifications and reference data (where provided)
- Electrical coverage with wiring diagrams
- Coverage across key systems: engine, transmission, brakes, steering, suspension, HVAC, and more
Trims covered
- Base Hearse 4-Door
- Protection Series Sedan 4-Door
- DTS Sedan 4-Door
- Base Sedan 4-Door
- DHS Sedan 4-Door
- Base Limousine 4-Door
Engines covered
- 4.6L 281Cu. In. V8 GAS DOHC Naturally Aspirated
Index / Table of contents
- Body
- Brakes
- Chassis Electrical
- Driveline
- Engine Cooling
- Engine Electrical
- Engine Mechanical
- Engine Performance & Emission Controls
- Fuel System
- General Information & Identification
- Heating, Ventilation, & Air Conditioning
- Hybrid & Electric Vehicle Systems
- Steering
- Suspension
- Transmission, Clutch, & Transfer Case
- Wiring Diagrams
This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if
If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a c
GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cov
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester and
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have hi
This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed fo
Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected mo
GM is receiving damaged (cracked or broken) transmission cores returned to the reman facilities. The damage is being caused either in the removal process by the technician, or inadequate packaging or shipping. This bulletin advises the deal
Showing the 8 most recent of 238 technical service bulletins on file with NHTSA.
TL* THE CONTACT OWNS A 2004 CADILLAC DEVILLE. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 4 MPH, THE BRAKE PEDAL SANK INTO THE FLOORBOARD AND THE VEHICLE FAILED TO SLOW DOWN AFTER NUMEROUS ATTEMPTS
TL* THE CONTACT OWNS A 2004 CADILLAC DEVILLE. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 4 MPH, THE BRAKE PEDAL SANK INTO THE FLOORBOARD AND THE VEHICLE FAILED TO SLOW DOWN AFTER NUMEROUS ATTEMPTS
DRIVING EAST ON FLAMINGO ST, LAS VEGAS, HIT DIP IN ROAD, SUDDENLY, WENT DEAD. NO POWER, ENGINE DIED, HIT FROM BEHIND, AIRBAGS DID NOT DEPLOY. WENT HOSPITAL BY AMBULANCE, WITH NECK BRACE, IV DRIP, SPE
DRIVING EAST ON FLAMINGO ST, LAS VEGAS, HIT DIP IN ROAD, SUDDENLY, WENT DEAD. NO POWER, ENGINE DIED, HIT FROM BEHIND, AIRBAGS DID NOT DEPLOY. WENT HOSPITAL BY AMBULANCE, WITH NECK BRACE, IV DRIP, SPE
DRIVING EAST ON FLAMINGO ST, LAS VEGAS, HIT DIP IN ROAD, SUDDENLY, WENT DEAD. NO POWER, ENGINE DIED, HIT FROM BEHIND, AIRBAGS DID NOT DEPLOY. WENT HOSPITAL BY AMBULANCE, WITH NECK BRACE, IV DRIP, SPE
Showing the 5 most serious of 211 complaints filed with NHTSA.
