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What does it mean when the Buick ESC warning light is on?

2 Answers

MacPaul

07/29/25 6:33pm

Buick ESC warning light on indicates that the vehicle's electronic stability control system is not working. Here are the solutions: 1. When the ESC light comes on, try restarting the engine, then press the ESC off button on the vehicle, and finally restart again. 2. If the Buick ESC warning light remains on after the above operations, it is recommended to go to a 4S shop for inspection and repair. The ESC fault indicator light coming on is a relatively complex fault problem. It is generally caused by a software system alarm, or it may be due to a sensor fault or a short circuit in the wiring. There is also the possibility of a false alarm. Special fault diagnostic equipment is needed for troubleshooting and confirmation.

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VonKira

08/14/25 11:38am

When the ESC warning light comes on while driving a Buick, that's not good. I guess many car owners have encountered this issue with the electronic stability control system. Normally, this system helps stabilize the car during skids. The light might indicate a dirty or damaged wheel speed sensor—for example, if the speed-measuring part near the wheel gets clogged with mud, it stops working. Other possibilities include loose or corroded wiring connections, or a bug in the control unit or software. If the light comes on while driving, don’t push your luck, especially in rainy or snowy conditions where losing control is easier. Safety first. It’s recommended to pull over, turn off the engine, wait a bit, and restart to see if the system resets. If that doesn’t work, head to a 4S shop to have the fault codes read with a diagnostic tool—they can pinpoint and fix the issue accurately. Also, have them check if the ABS system is functioning properly in coordination. Delaying repairs could worsen braking performance.

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