Buick Terraza 2005 Owner's Manual

Turn the ignition to the ON position without starting the engine. Fully press and release the accelerator pedal three times within five seconds. The oil change light should blink and then go out.
The recommended engine oil for the 2005 Buick Terraza is 5W-30. Ensure that the oil meets GM Standard GM6094M.
Check the coolant level and ensure the radiator is not blocked. Verify that the radiator fan is operational and inspect for leaks in the cooling system.
Check the fuse related to the sliding door circuit. Also, inspect the door track for obstructions and ensure that the door motor is functioning properly.
Locate the cabin air filter under the passenger side dashboard. Remove the retaining clips or screws, slide out the old filter, and replace it with a new one.
Check the air filter for clogs, ensure tire pressure is at the recommended level, and verify that the fuel injectors are clean. Additionally, check for any engine diagnostic codes.
The towing capacity of the 2005 Buick Terraza is approximately 3,500 pounds, assuming the vehicle is properly equipped.
Ensure that the brake pads and rotors are in good condition. Consider upgrading to high-performance brake pads and ensure the brake fluid is at the correct level and free of air.
Possible causes include a weak battery, faulty starter motor, or issues with the ignition system. Check these components and inspect for any loose or corroded connections.
Insert the key into the ignition and turn it to the ON position. Press and hold the LOCK and UNLOCK buttons on the key fob simultaneously for about 15 seconds until the locks cycle, indicating successful programming.