When did the GMC Yukon Denali battery go dead?

When did the GMC Yukon Denali battery go dead?

We purchased this 2010 Yukon used in March 2011 with about 18K miles. This summer the battery went dead while the back was open while loading the vehicle after a camping trip. I have since shut off the dome lights when loading/unloading to eliminate the issue.

What’s the problem with my GMC Yukon Denali XL?

Have a 2009 Denali XL with many of the same issues identified here EXCEPT doors locking and unlocking and the rear window thing. Been fighting the gremlins for almost 3 years. Originally I though I had it narrowed down to a broken battery post in the battery when I seemed to be able to wiggle the posts and got everything to work.

Are there any electrical problems with my GMC Yukon?

Battery goes dead after door is open for a short period of time or a dome light is on for a short period of time. Had battery, alternator and starter tested – all fine. Was loyal Toyota guy but needed a bigger vehicle and no model from Toyota fits the bill. Starting to regret going with GMC …

What’s the voltage on my GMC Yukon Denali?

I noticed last night while driving that my headlights would get brighter and the voltage meter would increase above 15 volts. The lights would dim and the volt meter would drop back to 14 volts.

We purchased this 2010 Yukon used in March 2011 with about 18K miles. This summer the battery went dead while the back was open while loading the vehicle after a camping trip. I have since shut off the dome lights when loading/unloading to eliminate the issue.

Battery goes dead after door is open for a short period of time or a dome light is on for a short period of time. Had battery, alternator and starter tested – all fine. Was loyal Toyota guy but needed a bigger vehicle and no model from Toyota fits the bill. Starting to regret going with GMC

Have a 2009 Denali XL with many of the same issues identified here EXCEPT doors locking and unlocking and the rear window thing. Been fighting the gremlins for almost 3 years. Originally I though I had it narrowed down to a broken battery post in the battery when I seemed to be able to wiggle the posts and got everything to work.

I noticed last night while driving that my headlights would get brighter and the voltage meter would increase above 15 volts. The lights would dim and the volt meter would drop back to 14 volts.

When to supplement the battery in a GMC Yukon?

With enough electrical loads “ON”, it is easy to exceed the generator current (amperage) output when the engine is at an idle of 600-700 RPM. This is a normal condition. The battery supplements for short periods of time.

With enough electrical loads “ON”, it is easy to exceed the generator current (amperage) output when the engine is at an idle of 600-700 RPM. This is a normal condition. The battery supplements for short periods of time.

Why does my GMC Yukon make a feedback noise?

The lights would dim and the volt meter would drop back to 14 volts. Also, the microphone located in the headliner has started to make a “feedback” noise. What could be causing this.

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