Question about 2002 GMC Envoy

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How to unlock door with dead battery - 2002 GMC Envoy

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If you haven't tried the key in the door, and make sure you turn it both ways, you'll need to get power to the vehicle. To do that your going to have to make yourself some small jumper cables. Get some small alligator clips from a parts store or Walmart or a home improvment store would have. It needs to be big enough to clamp on to a 1/2 inch to 5/8 inch nut. And needs to be long enough to reach under to the nut on the starter that holds the battery cable on. Put it on the starter nut first, then put something on a good ground on there as well. Then put it on the postive post of a good battery, then make sure you only touch the ground wire to the vehicle with the good battery to make sure your not grounding your postive wire anywhere. Once your sure its safe connect it and you should be able to have power on your SUV and can unlock the doors. If all else fails you might have to smash the grill to pop the hood manually to get in depending on the hood latch and pull device. I had to run the wire thing on a vehicle that had the keys locked in and the owner only had the remote for it. And had left the headlights on. Just be very careful if you try this.

Posted on Jul 13, 2009

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If you can get to the positive terminal on the starter, you can attach a wire to it (make sure it does not touch anything else but the terminal) and attach a ground lead to any place on the frame or engine. attach free ends to another battery (+ side is the one going to the starter) and the system should power up.

Posted on Jul 13, 2009

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