Software Problems of GMC Yukon

I purchased by vehicle in the summer of 2015. It has been in the shop numerous times for various issues, mostly electrical involving the computer and software, or issues involving my tires or steering when turning the steering wheel. . My "driver assist" has malfunctioned many times and I have taken it to the shop to have it repaired on 3 separate occasions. Last summer my front and rear lights started flickering and stopped working. I spent $800 for the back passenger brake light and almost $1000 for the front driver head light assembly. I also had to get a new battery for this vehicle. My 2015 GMC Yukon xl is now malfunctioning again and this time, I am told that the seat motor (that alerts you when you are near an obstacle has burned out. ) about 4 days ago, I became aware of ticking noise while my car has been idle. I immediately scheduled a maintenance appointment. Today, I am also informed that my "lifters" are bad on the vehicle and my engine is going bad. I am told the air conditioning condenser has burned out, I am told the motor under my seat is burned out. I have performed routine maintenance, I get oil changes regularly and use high quality synthetic oils. I take my car to the shop at least 2x per year for problems and some major repair is always required. This is a car that I am going into the 5th year of ownership this summer. Originally. I was told that there was a recall for brakes, now I am told there is not, but I have taken my car in for various recalls at least 3x. This is an unsafe, defective vehicle. Every system fails. I am now in search of a new vehicle. I have driven other gm vehicles (grand am, hummer) and none have required so much repair costs. Today I am told that it will cost $6800 to repair my vehicle to make it safe. My repair records will show the repairs and service charges I have paid since purchase. This is a lemon.

See all problems of the 2015 GMC Yukon 🔎.

I purchased a 2016 Yukon denali brand new from the dealer in October 2016. Since this time the vehicle has been in the shop 5 times. The first time was due to front driver side door not being fully aligned with the front fender. This issue was not resolved as they said it would "most likely mess the vehicle up further". In February of 2017 my Yukon went back to the dealer for service involving the power running boards not deploying and control panel not illuminating. The control panel was blamed on a software update. While at the dealer the service manager stated that "gm put out this software too early". In may 2017 the rear dvd player went blank and stopped working. These two issues were both covered under warranty. In November 2017 the radio started to "freeze" and wouldn't change channels. I was told this was a software update issue and I needed a new hmi ($500) and will not be under warranty as I now have 40,000 miles. In December 2017 my Yukon went back to the service department due to air conditioner failure. After reviewing on the internet this seems to be a common problem for this vehicle. Apparently, there was a special bulletin the consumer isn't aware of until it breaks, so it was also covered; however the blower motor ($377) that broke due to this issue wasn't covered. I contacted gm customer service and filed a complaint with a supervisor. I was told there is nothing they can do due to my Yukon being out of warranty, and when they build these vehicles "they do not know how long parts will last". In my opinion this is unacceptable especially for a $75,000 + vehicle that is only 2 years removed from the manufacturer. I have owned 3 gm products (tahoe, Yukon, and now this vehicle) and I will never buy another gm product.

See all problems of the 2016 GMC Yukon 🔎.

I have a brand new 2015 Yukon denali (short wheel base) with less than a thousand miles and a "service 4wd" message that has appeared twice rendering the car extremely unsafe and un-drivable for a long distance and having to have it towed to the dealer twice. A software update was done on the car the first time, only resolved the issue for a few weeks, the issue re-occurred after 3 weeks. When turning the vehicle on the dash gives the message "service 4wd". The car has a transmission button to change from 2wd, auto, 4 high and 4 low. I do not touch this button, I just leave the car in auto and drive. I do not tow anything, this is just a family car used for commuting. When the "service 4wd' message appears, the car is barely drivable. When it is put in reverse, the car just brakes after a few feet, as if the parking brake were on, but it obvious is not engaged. When turning left or right, the car brakes mid-turn and will only complete the turn if 3/4 to full accelerator is applied to continue through the turn. The car slightly bucks through the turn and the engine sounds different and has little power going around corners and going up hills. The car cannot safely be driven in a straight line faster than 40-50 mph. I telephoned onstar and diagnostics were run during both occurrences with the same error message from onstar diagnostics: "the braking system has an issue- transfer case module not working as expected". When will gm issue a recall on this safety issue, I do not feel safe letting my wife and child in the car if it brakes by itself, loses power and cannot complete turns. I purchased this car to have a safe/large vehicle for my family: service 4wd appears on screen it renders the car un-drivable and the transmission button becomes inoperable and selecting other transmission modes becomes not possible.

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).

See all problems of the 2007 GMC Yukon 🔎.

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.