1999 GMC Denali "dash lights dim during driving" Questions

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Lights on dash will dim and come back. Now they won't come on during the day unless headlights are off. Driving me nuts. You probably have a bad ground in the electronic instrument cluster, or

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Question about GMC Denali

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...Dash lights are off when exterior lights are on. Headlights, taillights, brake lights, and backup lights all work. Blinkers are stuck on, both sides, all the time, very dim. They do not blink at all. ...

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...lights are dimming normally in night seems to me the lamps are dim in the cluster, as in bad lamps. the dimmer works, but can be tested, if 12vdc out on high. the dimmer is good. car drives ...

Question about GMC Denali

1 Answer

...dash lights dim before the event I would imagine it is the alternator. If it kind of chugged to a stop and will crank over but not start I would look at the fuel system/fuel pump. However, more ...

...dash gauges (idiot lights) come on. Intermittently dash gauge (idiot light) comes on in my 1999 Venture. One time it may be the air bag light, the next time it is driven the fuel gauge may not work, ...

dash lamps glow like the they should during self test key on>? headlights work and not dim , running engine? battery cables good, not damaged or corroded lugs at 4 ends. by now you have a handle in

...dash lights didn't work as well. And now the climate control screen is very dim. If the car is blowing fuses what does this mean as well. Thanks Hi Christine, The TCS (traction control system) will ...

...dash lights dimmed until it looked like they were off, except for my airbag and brake lights. Any ideas? Thanks! if you have serpentine belt and is chirping this means the belt is loose and probably ...

...dash lights, a/c and heat blower dim during driving. recently replaced starter and found ground hangng from under car. what does it attach to? first how do u know its a ground wire and what is this ...

...steps do i take to replacing it? note: only the lights responsible for illuminating the speedo and temp/gas gauges are dim, all other lights in dash working properly Probably just a couple bad

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