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How do you reset computer on gmc sierra?

To reset the computer on a GMC Sierra, follow these steps:

* Park your vehicle in a safe location and turn off the engine.

* Open the hood of your vehicle and locate the negative battery terminal. It will be marked with a "-" sign.

* Disconnect the negative battery cable from the battery using a wrench.

* Wait at least 30 seconds.

* Reconnect the negative battery cable to the battery.

* Start your engine and let it run for at least 5 minutes.

* Test the computer to make sure it has been reset.

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