Gmc wont start

Asked by GuruD9P8H Aug 05, 2017 at 02:20 PM about the 2009 GMC Envoy SLT-1

Question type: Maintenance & Repair

My gmc won't start at times I have to let it sit on
auxiliary until all the lights on the dash board come
on then it starts for me please if anyone knows
what the issue is I have kids and worry everytime I
try to start the car that we will be stranded if it
helps I'm  also having an issue with my headlights
when I first purchased the vehicle the car would
start no problem the head lights would come on
right when I started it and the would gradually get
brighter automatically now it won't do that and if I
need headlights on I have to use my brights which
really pisses of other drivers.

1 Answer
11,295

FJ4072 answered 6 years ago

Look to your ignition switch that may be the problem for the dash lights not coming on and not starting, possibly that. The headlights is an easy fix a 2yo can do. It's the low beam headlight relay under the hood. There's actually a recall on this. Replace the relay, I believe it's #46. I always keep a spare relay in my glovebox, yep, it's that common.

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