Question about 2008 GMC Sierra 2500HD 2WD

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Interior light delay

I have a 2006 GMC 2500HD WT (work truck trim), 6.0L, 4x4. The interior lights do not come on if the door opens, or stay on after ignition is turned off and the door open. The door signals work (indicator on the dash display) and the manual interior light dash light dimmer/on-switch works to turn the dome light on. I am suspecting the dimmer timer that, when a door opens, closes, and waits a set amount of time, the lights dim to off.

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Same for both doors? If not, I'd check the switch(s) on the drivers door (may be more than one), or may be just one that has multiple contacts and the ones for the lights may be faulty.

Posted on Jul 01, 2017


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SOURCE: I have a 2005 GMC Sierra 1500 Z-71 - the interior dome light works with the dash switches, but won't work when the door opens. Why?

Is there a button by the headlight control switch? I recently found out that the dome light only comes on while the doors are open when this button is engaged

Posted on Aug 26, 2012


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