GMC Yukon Denali Reviews

The vehicle completely stalled while driving uphill in an area where I live that frequently experiences snow and icy road conditions. This creates a serious safety risk. Thankfully, this did not occur on a freeway where traffic speeds exceed 65 mph. I also regularly travel with my 17-month-old child in the vehicle, which makes this situation even more alarming. My concern is not only about the mechanical failure itself, but about the safety implications and the apparent lack of urgency in addressing them. I respectfully request full documentation regarding the engine issue and a clear explanation of the decision that was made.

I am writing regarding my 2025 GMC Yukon, which required a complete engine replacement at only 10,000 miles. While the repair was performed under warranty, a full engine failure at such low mileage is extremely concerning for a brand-new vehicle. This type of major powertrain defect substantially impacts the vehicle’s reliability, long-term value, and overall confidence in its safety. A complete engine replacement is not a minor repair, and it raises serious concerns about future performance and durability.

I understand that repair attempts are one factor considered under lemon law guidelines; however, a defect of this magnitude may also qualify as a substantial impairment to the use, value, and safety of the vehicle. Additionally, any time the vehicle was out of service should be taken into consideration. Given these circumstances, I am formally requesting that this matter be reviewed for potential repurchase or replacement consideration. At minimum, I would like this complaint documented and escalated to the appropriate review team. Please confirm receipt of this email and provide a case number for my records. I look forward to your response and a resolution that reflects the seriousness of this situation.

Only two months and nine days into ownership—and with less than 2,000 miles on the odometer—we drove from Southern California to Scottsdale, Arizona (about 2,381 miles on the vehicle) when the engine catastrophically failed, as the local service manager called it. The engine had seized unexpectedly and left us stranded five hours from home. We’ve been verbally told that the car now requires a new engine, radiator, piping, fuse box and new wiring—though the dealer has yet to provide an official diagnostic. To experience such a devastating failure in a brand-new, premium vehicle is not only shocking—it’s deeply disappointing and stressful.

• 8/2024: Vehicle failed AGAIN, broke down during a test drive, had to be towed back. Now I’ve been told it needs a new engine ($20,000)—but warranty is expired.

I have already invested over $130,000 in payments and repairs—and I am still making monthly payments on a vehicle that doesn’t even run. GM’s only “solution” was offering me a loyalty certificate toward buying a new vehicle—which is not a real resolution when I already own one that doesn’t work. I’m left paying for a “luxury” vehicle that I can’t even drive. All I’m asking is for GM to stand behind their product and cover the engine replacement or provide a fair resolution. A vehicle with repeated failures like this should not be the burden of the customer. Please share my story—maybe together we can hold GM accountable.

I purchased a GMC Denali six months ago for a hefty price tag of $96,000, expecting a premium driving experience and the reliability that usually comes with a luxury brand. However, my experience with this vehicle has been nothing short of a nightmare, and the customer service from GM has been equally disappointing.

The trouble began when I started experiencing electrical issues with the vehicle. These issues culminated in a terrifying incident on the freeway, where the car dangerously shut off, forcing me to coast to safety amidst high-speed traffic. This incident not only put my life in danger but also posed a significant risk to others on the road.

When I reached out to GM for assistance, I expected a prompt and reassuring response. Instead, I was met with disappointment and frustration. GM has refused to cover the cost of a replacement vehicle while I wait for the new engine to be installed. This has left me in a vulnerable position, having to pay for a rental car for three weeks and counting, which is an added financial burden that I never anticipated.

What's even more disheartening is GM's dismissive attitude toward the situation. Their response was, "sometimes new cars need new engines," which is an unacceptable and callous way to address a problem of this magnitude. A car that costs nearly $100,000 should not require such a major repair within the first six months of ownership, and GM's failure to take responsibility for this issue is both infuriating and unacceptable. Furthermore, the staff at GM have been elusive and show a profound lack of concern for their customers' safety and satisfaction. It's as if they've forgotten the importance of customer loyalty and the reputation of their brand.

In conclusion, my experience with the GMC Denali has been a costly and dangerous ordeal. GM's unwillingness to provide adequate support and their dismissive attitude towards the issue have left me deeply dissatisfied. I expected more from a brand that claims to offer luxury and reliability, but what I received was nothing but disappointment and frustration. Buyers beware, and think twice before investing your hard-earned money in a GMC Denali.