Cadillac DeVille 2004 Convenience & Personalization Guide
![Cadillac DeVille 2004 manual cover](/images/QIUFsvuVrBPTEGSiXhWxLVjX/thumbs/thumb175x175.webp)
To reset the oil life monitor, turn the ignition to the ON position without starting the engine. Press the INFO button until the Oil Life System is displayed. Then, press and hold the RESET button until the display reads 100%.
The recommended engine oil for a 2004 Cadillac DeVille is 5W-30, meeting the GM 6094M standard. Always refer to the owner's manual for the most accurate information.
Start by checking the fuse and relay for the AC system. If they are functional, ensure the refrigerant levels are adequate. Also, verify that the AC compressor clutch is engaging. If problems persist, seek professional diagnostics.
The recommended tire pressure for the 2004 Cadillac DeVille is typically 30 PSI for both front and rear tires. Always check the placard inside the driver’s door for the most accurate information.
To program a new key fob, insert the key into the ignition and turn it to the ON position. Press and hold the LOCK and UNLOCK buttons on the fob simultaneously until the vehicle responds with a lock cycle, usually within 30 seconds.
Common causes of a rough idle include dirty fuel injectors, a vacuum leak, a faulty idle air control valve, or worn spark plugs. Conduct a thorough inspection and replace or repair components as necessary.
It is generally recommended to change the transmission fluid every 50,000 miles under normal driving conditions. Refer to the owner’s manual for specific intervals based on your driving habits.
First, inspect for any visible obstructions or damage to the latch mechanism. Lubricate the latch with WD-40 or a similar product. If the issue persists, the latch assembly may need adjustment or replacement.
The cabin air filter is located behind the glove box. Open the glove box, disconnect the retaining arm, and lower the glove box door. Remove the filter cover and replace the old filter with a new one. Reassemble in reverse order.
Check the window fuse and relay first. Test the window switch for power using a multimeter. If power is present, the window motor may be faulty. If no power, the switch itself might need replacement.