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Q: Brake lights only come on when pedal is fully depressed but not when lightly tapped 2011 Buick Regal

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The brake light doesn't come on unless I apply them totally, I have already had the switch replaced, however I don't know if they adjusted it properly
My car has an automatic transmission.

A: Hello - there is a "relearn" proc...

Hello - there is a "relearn" process required when replacing the brake light switch on your vehicle (affects cruise control and other bits). Sounds like this step was overlooked. This will, believe it or not, require a trip to your Buick service center to complete the process.

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