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How to reset the maintenance light on a 2020 Buick GL8?

2 Answers

DelEden

07/24/25 7:50am

Refer to the vehicle manual, when the car is not started, press the mileage reset button, start the engine, and release the button after the maintenance indicator disappears. Display the instantaneous fuel consumption, turn off the ignition, press the mode button, then turn on the ignition, and simultaneously press the mode and time adjustment buttons to remove the small wrench indicator.

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SanCora

08/11/25 3:33am

Resetting the maintenance light on the 2020 Buick GL8 is actually quite simple. Having driven this car for several years, I'll share my method: First, turn the key to the OFF position to completely shut off the engine. Then locate the Trip or Reset button on the dashboard, which is likely near the steering wheel. Next, turn the key to the ON position without starting the engine, and hold down that button without releasing it for about 10-15 seconds. The maintenance light on the dashboard will then flash or turn off, indicating a successful reset. Remember to perform this only after each maintenance service, such as after an oil and filter change, to prevent false alerts from the vehicle. If the button isn't obvious, check the owner's manual for illustrations. Resetting promptly after maintenance helps track the next service interval—especially important for high-use commercial vehicles like the GL8 to avoid engine wear. I've tried this method several times with high success rates. If issues arise, it might be due to poor button contact—try pressing it a few more times or cleaning off any dust. Regular maintenance can save you from major repair costs, especially before long trips. Resetting the light may seem minor, but it's important.

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