Cadillac Seville 1999 Owner's Manual
![Cadillac Seville 1999 manual cover](/images/VlhhAiyYtZAsnwpykSDJPYKD/thumbs/thumb175x175.webp)
The recommended oil type for a 1999 Cadillac Seville is 10W-30. Ensure to use high-quality motor oil to maintain engine performance.
To reset the 'Service Engine Soon' light, you can disconnect the battery for about 15 minutes. If the light persists, a diagnostic scan may be necessary to identify underlying issues.
The proper tire pressure for a 1999 Cadillac Seville is 30 PSI for both front and rear tires. Always check the tire pressure when the tires are cold.
Start by checking the refrigerant level and inspecting the fuses and relays related to the AC system. Also, examine the AC compressor and ensure that the serpentine belt is intact.
Common causes of overheating include a faulty thermostat, a leaking radiator, or a malfunctioning water pump. It is crucial to check coolant levels regularly and inspect for leaks.
To improve fuel efficiency, regularly maintain your vehicle by changing the oil, replacing air filters, and ensuring tires are properly inflated. Also, try to drive at steady speeds and avoid rapid acceleration.
Dexron III/Mercon automatic transmission fluid is recommended for the 1999 Cadillac Seville. Regularly check and replace the fluid to ensure smooth transmission operation.
To replace the headlight bulb, open the hood and locate the back of the headlight assembly. Remove the electrical connector, then twist the bulb socket counterclockwise to remove it. Replace with a new bulb and reassemble.
If the ABS light stays on, check the ABS sensor and wiring for any damages. Additionally, check the brake fluid level. If the issue persists, a professional diagnostic may be required.
It is recommended to change the spark plugs every 60,000 to 100,000 miles, depending on the type of plugs used. Regular inspection and maintenance can prevent misfires and ensure optimal engine performance.