Why are the lights dimming on my GMC Yukon?

Why are the lights dimming on my GMC Yukon?

Dimming of the lights is an indication that current is being pulled from the battery. If the battery is in a low state-of-charge (discharged condition), the driver will notice a more pronounced dimming than a vehicle with a fully charged battery. 2.

Why does the light keep coming on on my Denali?

On my Denali, the gas cap was tight but the light still kept coming on intermittently. It turns out that there was a tiny crack in the rubber ring on the gas cap that forms the seal between the gas cap and the filler neck. A new gas cap solved the problem.

How to diagnose battery Guage on a GMC Yukon?

The engine computer (ECM/PCM) will ramp up engine/generator speed in small steps so engine speed variations are not noticeable to the driver. For diagnosis of the battery and/or the generator, refer to the appropriate Service Information (SI) or Corporate Bulletin Number 05-06-03-002C.

What’s the problem with GMC Yukon Denali traction control?

Hi I have a 2003 XL Denali. I too have the same problem the Traction Active engages cutting the power to the truck. Numerous trips to the dealer has not fixed the problem. But in reading all the posts and your recent post I will be printing them and taking them with me.and telling them to service the sensors.

On my Denali, the gas cap was tight but the light still kept coming on intermittently. It turns out that there was a tiny crack in the rubber ring on the gas cap that forms the seal between the gas cap and the filler neck. A new gas cap solved the problem.

Hi I have a 2003 XL Denali. I too have the same problem the Traction Active engages cutting the power to the truck. Numerous trips to the dealer has not fixed the problem. But in reading all the posts and your recent post I will be printing them and taking them with me.and telling them to service the sensors.

Why does my GMC Yukon make a buzzing noise?

When I push the drivers heated seat button, the odd time their is a loud buzzing noise thats appears causing the rear passenger door drivers side light to come on then the heated seat shuts off. Definitly a wiring issue again numerous trips to the dealer and no luck..

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