Buick LeSabre 2003 Owner's Manual
![Buick LeSabre 2003 manual cover](/images/bCMipOQjCsjdngEeYbMMlZCO/thumbs/thumb175x175.webp)
The recommended oil type for the 2003 Buick LeSabre is 10W-30 for temperatures above 0°F, and 5W-30 for temperatures below 60°F.
To reset the 'Change Oil' light, turn the ignition to the ON position without starting the engine. Fully depress and release the accelerator pedal three times within five seconds. The light should blink and then turn off.
The recommended tire pressure for the 2003 Buick LeSabre is 30 psi for both the front and rear tires.
First, check the fuse for the power windows. If the fuse is intact, inspect the window switch and motor. Listen for any noise when pressing the switch, which might indicate a motor issue.
To replace a headlight bulb, open the hood and locate the back of the headlight assembly. Remove the retaining clips and turn the bulb socket counterclockwise to remove it. Replace with a new bulb and reassemble.
Check for visible coolant puddles under the vehicle. Inspect hoses, the radiator, and the water pump for leaks. A pressure test can also help identify the source of the leak.
Common causes can include vacuum leaks, a dirty throttle body, faulty spark plugs, or a malfunctioning idle air control valve. Regular maintenance can help prevent these issues.
Locate the cabin air filter under the passenger side dashboard. Remove the access panel, slide out the old filter, and replace it with a new one. Reattach the access panel.
To change the transmission fluid, lift the vehicle and remove the transmission pan bolts. Drain the old fluid, replace the filter, and reinstall the pan with a new gasket. Fill with new transmission fluid through the dipstick tube.
Ensure regular maintenance like air filter changes and proper tire inflation. Use the recommended grade of motor oil and avoid excessive idling and rapid acceleration to improve fuel efficiency.