Two problems related to battery have been reported for the 2002 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 GMC Yukon based on all problems reported for the 2002 Yukon.
I am concerned that GMC is neglecting a serious issue that could cause car fires. I called GMC 800)462-8782 and spoke with stacy whaples today. She was not the least concerned that this is a repeat problem that could cause serious injury. The original a/c delco was replaced on this new vehicle around 1 1/2 years and again the same problem with this vehicle 2 3/4 years later. Why is it a 6 year warranty if you cannot even get half of that out of it safely. After the first replacement GMC said I am not eligible for any warranty regardless if it is a defect or not. Furthermore, at least 5 people I know with the GMC SUV's ( Yukon's & envoy's) that have the battery manufactured by : a/c delco with the connection on the side leaks batter acid and cause corrosion on the terminal and the cables. The dealer told me that I only needed to replace the battery. I am not satisfied that this is safe and that the cables are going to be safe. Several dealers have acknowledged that this is a problem with the design a/c delco battery. This is the 2nd time it has leaked, the property damage marked below is ?- I do not know what else is damaged below or around the spot where the battery resides?.
Dec 24 2004 I returned to my parked car and started the engine, the front defrost blowers went to high speed and would not shut off. At my next stop I stopped and restarted the car several times but the fan kept running. Removing the keys opening the door did nothing. After removing the fuse to the front havc the fan stopped but started again when the fuse was re-installed. After returning home I disconnected the battery for a half hour the fan stayed off, the controls worked properly. Dec 28th stopping for gas, I turned the car off but the fan cam on again at full speed. I checked on line and it seems several people are having the same problem but the dealers have not come up with a fix. At this time I have pulled the fuse to keep the fan from blowing but it's too cold to be driving with no heat or defrost in the car. When I get home where I have tools I will again disconnect the battery.