Question about 2007 Pontiac Grand Prix
What could be the problem when all of the following have quit working at the same time. low beam lights, heater, power locks, and cruise control?
Fuse failure or fuseable link wire/relay malfuntion.. check and repost findings..
Posted on Jan 20, 2013
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Posted on Jan 02, 2017
Ok look under the bagtterry tray, there is a black box bolted to the body, it is the headlight ground and has a really bad tendency to corode due to the design.
Posted on Feb 04, 2009
Yes it's the mutifunction switch it needs to be replaced it's the one for the blinker and head lights but if the low beams are going out it's the light switch itself, also expanded ends where the bulb is pluged in could cause this. To fix that you need to remove the connecter and squeeze the conneters together then push them back on. they try it this won't cost you any money, if the stay on your good to go if the go out then if it's the low beams replace the light switch it's not to much $35.00 or so and is easy to replace but would have to tell you how to do that so get back to me and let me know. Thanks for using fixya and please rate me for this free question.
Posted on Aug 18, 2009
The problem could be the headlamp switch.
You are right about the fuses.There is one for the LH high/low and one for the RH high/low.
Have you tried turning on the lamps manually with the switch?
Posted on Nov 11, 2009
The cruise control stopped working on my 2002 Montana. I googled this and several places kept indicating the brake lights. I thought they were OK also because the top bar came on when you step on the pedal. However, the side lights did not get brighter. Turns out I had both bulbs bad, they have two elements. Once that was fixed the left turn signal flashed very fast when tested and that was a bulb in the front that went bad. Before I was done one headlight went out from a bad bulb and I replaced that too. Finally got to test it out, and lo and behold, the cruise control now works.....
Posted on Mar 25, 2010
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