How to reset the maintenance light on an old Buick GL8?

[AndrewDella]

Old Buick GL8 maintenance light reset method: Turn on the ignition switch, fully depress the accelerator pedal three times within 5 seconds to complete the reset. If the maintenance light was already on before vehicle maintenance, the reset is successful and the light will turn off. If the maintenance light was not on before maintenance, the success of the reset needs to be verified by checking the diagnostic tool data. Below is relevant information about Buick GL8 maintenance: 1. The engine oil and oil filter of the Buick GL8 should be replaced every 5,000 kilometers. The manufacturer provides two free oil and filter change services for the owner. 2. The air filter, fuel filter, and cabin air filter should be replaced every 20,000 kilometers; brake fluid every 30,000 kilometers; spark plugs every 60,000 kilometers; and transmission fluid every 80,000 kilometers.