I have a 2008 Yukon Denali XL that has a battery draw in it ever since I bought it. It has been in the dealership 4 times now and they keep telling me it is a bad cell in the battery so they replace the battery and send me on my way. Now I have to send it in again because again if the vehicle sits and I do not start it for 2 days the battery will be dead. Any suggestions for me or the dealership I am going to on fixing the problem. Thank you for your time.
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Re: 2008 Yukon Denali XL battery draw
The easiest way to find the draw is to take a volt/ohm meter and remove the positive lead and connect the meter in series using the amp meter selection. By series, I mean hook the black meter lead to the battery, and the red meter lead to the battery cable.
Check your amp draw. (make sure you remove the bulb for your under hood light and everything off and closed. It should be milliamps.
If you have a more than several milli amps, start disconnecting fuses on at a time and put them back until you find the circuit that is drawing down the battery. Once you find the circuit, then it gets down to finding out whats shorted or bad in that circuit.
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I recently had a low engine power on my 2003 Denali. The check engine light came on and I couldn't go above 40 mph. I took it in the next morning but by this time the check engine light had gone off. The mechanic had just recently seen the same problem in another Denali in which they changed the battery and had no problems since. I also decided to have them change out my battery and I have not had the problem since either. I would stay away from the dealership if I were you, and always get a second opinion. Most smaller shops wont charge for a diagnostic where the dealership will charge at least 80 just to tell you what might be wrong and that will only work if you have a warning light on at the time.
We had the same issue with our 2007 Yukon Denali XL. Died on us twice after sitting for short periods of time; once we watched a DVD with the engine off and battery died within 10 minutes. The dealership kept it overnight to troubleshoot why the battery died so quickly. They said the radio was "pulling" too much from the battery. (They supposably fixed it) But again a few days later the battery died again after sitting overnight. We brought it back to the dealership and they brought in a GMC "expert" to replace the entire DVD/CD/Navigation system. They also replaced our battery with a much larger battery, similar to the ones that GMC puts in there diesel trucks. They had our Denali for 5 days, but it appears to be fixed now.
Getting it fixed correctly wasn't without headaches, but it was all covered under warranty, including the battery. And they are updating the nav w/ the new edition disc as well for no charge.
I shipped my 2006 Yukon Denali from USA to Saudi Arabia. When I to purchase the Middle East map DVD for the navigation system. GM Navigation answered me that they do not have the middle east DVD and I should contact the European branch. The dealer in Saudi Arabia is asking for $1200 for the disc and I know it is worth no more than $400. Could you please direct me to someone who sells the 06 Denali navigation map DVD? Thanks..