Three problems related to software have been reported for the 2007 GMC Yukon. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2007 GMC Yukon based on all problems reported for the 2007 Yukon.
Body control module (bcm) software calibrations create a lower battery state of charge than intended in low power usage modes. Multiple "re-flashing" of bcm required at gm dealers (see attached gm TSB). This same issue has been diagnosed/repaired on my vehicle in 04/14/08, 07/17/2012, and 06/01/2016. There is a manufacturing defect in the software programing and/or hard ware of this related bcm. Additional 2007 model year gm trucks affected (see attached gm TSB).
On the dashboard, there is a button with a stick figure in a sitting position and an arrow at the feet of the stick figure to indicate air to be discharged at the floor by the fan. When I push that button for heating, unfortunately, 80-90% of the air is being discharged at the top of the dashboard through a small vent on the far right and left of the windshield, which are designed to blow on the passenger and driver side windows to defrost them. There is additional leakage of a small volume of air at the defrost vent for the windshield and, whatever's left, blows on the floor. The net result is the vehicle is pumping most of the hot air to the ceiling (because the small dashboard vents point up) where hot air naturally wants to be and it is very difficult to get hot air on the floor where, according to the owner's manual, the majority of the air should be directed. The compartment, therefore, takes forever to warm up and your feet actually get cold while you're driving the car.
I accelerated onto the freeway to catch up with on coming traffic on my 2007 GMC Yukon. When I hit top speed in the 3rd lane not even a quarter of a mile at 65-70mph, the accelerator got stuck making my vehicle travel at 80-90mph on its own. I stepped on the brake but my vehicle was still accelerating. I then put the car into neutral and took the next closest exit. I was blocking the exit with on coming traffic behind me and luckily a few good samaritans help me push my vehicle to safety. I used onstar to get my car towed to the dealership, thus being a Sunday, all service departments were closed. Monday morning 8/20/07 I notified the dealer about the accident and it wasn't until 8/21/07 Tuesday I received my vehicle back. I was told that there was a recall on the computer and am very upset that I was not notified by mail or by phone call by GMC. I am very shaken up and traumatized about the whole ordeal and very thankful that the worst didn't happen.