“We absolutely love our 2015 Yukon Denali!! It is by far the best vehicle we have ever owned.”
2015 GMC Yukon: What's New, Specs & Features
Last updated August 4, 2026
The 2015 GMC Yukon is a full redesign and the first year of its fourth generation. Its biggest change is an all-new body and cabin, joined by new V8 engines and fold-flat rear seating.
About the 2015 GMC Yukon
4th generation (2015-2020), first year of the redesign
GMC positions the Yukon as a premium full-size SUV for shoppers who need real towing, V8 power, and three-row utility without giving up a quieter, more upscale cabin. The core appeal is truck-based capability mixed with family-friendly comfort, easy cargo flexibility, and richer materials than mainstream rivals. In the lineup, Yukon sits between mass-market full-size SUVs and true luxury-branded alternatives, offering a more polished take on serious SUV duty.
The SLE is the straightforward family and towing model, with a 5.3-liter V8, an 8-inch touchscreen, tri-zone climate control, and a fold-flat third row. SLT adds leather-focused comfort and more driver-assistance features, while the flagship Denali pairs a stronger 6.2-liter V8 with an adaptive suspension, upgraded displays, and Bose audio.
What changed, by category
Powertrain
A new EcoTec3 V8 family brought more power and improved fuel economy. SLE and SLT use a 5.3-liter V8, while Denali gets a stronger 6.2-liter V8.
Styling
The redesigned Yukon received new exterior bodywork and a more modern, more upscale interior.
Safety
Driver-assistance technology expanded, especially on SLT. Its equipment includes forward-collision warning, lane-departure warning, blind-spot monitoring, rear cross-traffic alert, and a vibrating Safety Alert Seat; blind-spot monitoring became standard on SLT.
Tech
An 8-inch touchscreen became standard, with Bluetooth audio, expanded device connectivity, and five USB ports on SLE. Denali added a customizable digital instrument display and Bose audio with active noise cancellation.
Structural
A stronger body structure helped create a quieter cabin. The redesign also introduced a standard fold-flat third-row seat for easier cargo use.
2015 GMC Yukon specs and features by trim
| Feature | |||
|---|---|---|---|
| Engine | V8, EcoTec3, 5.3 Liter / V8, EcoTec3, FF, 5.3L | V8, EcoTec3, 5.3 Liter / V8, EcoTec3, FF, 5.3L | V8, EcoTec3, 6.2 Liter / V8, EcoTec3, FF, 6.2L |
| Transmission | Auto, 6-Spd HD Overdrive | Auto, 6-Spd HD Overdrive | Auto, 6-Spd HD Overdrive |
| Drivetrain | 4WD | 4WD | AWD |
| Fuel Type | Gas / Flexible Fuel | Gas / Flexible Fuel | Gas / Flexible Fuel |
| MPG City | 16 mpg | 16 mpg | 15 mpg |
| MPG Highway | 23 mpg | 23 mpg | 22 mpg |
| Horsepower | 355 hp | 355 hp | 420 hp |
| Torque | 383 lb-ft | 383 lb-ft | 460 lb-ft |
| Max Towing | 8000–8200 lb | 8100–8200 lb | 7900–8100 lb |
| Trunk/Cargo | 94.7–121.1 cu-ft | 94.7–121.1 cu-ft | 94.7–121.1 cu-ft |
| Rear Legroom | 24.8–34.5 in | 24.8–34.5 in | 24.8–34.5 in |
| Seats | 9 | 8 | 8 |
| Doors | 4 | 4 | 4 |
| Adaptive Cruise Control | |||
| Alarm System | |||
| Blindspot Sensors | |||
| Lane Departure Warning | |||
| Rear View Camera | |||
| Alloy Wheels | |||
| Auto-Dimming Exterior Mirrors | |||
| Fog Lights | |||
| HID Headlights | |||
| Memory Exterior Mirrors | |||
| Power Moonroof | |||
| Power Folding Exterior Mirrors | |||
| Power Liftgate/Trunk Release | |||
| Power Side Steps | |||
| Roof Rails | |||
| Front DVD Entertainment System | |||
| Navigation System | |||
| Premium Audio | |||
| Rear DVD Entertainment System | |||
| Satellite Radio | |||
| Smartphone Interface | |||
| Subwoofer | |||
| Touch Screen Monitor | |||
| USB Ports | |||
| Auto-Dimming Interior Mirror | |||
| Cooled Seats | |||
| Dual Power Front Seats | |||
| Dual Power Rear Seats | |||
| Heated Front Seats | |||
| Heated Rear Seats | |||
| Heated Steering Wheel | |||
| Integrated Garage Door Opener | |||
| Leather Seats | |||
| Memory Driver's Seat | |||
| Memory Pedals | |||
| Memory Steering Wheel | |||
| Power Adjustable Pedals | |||
| Power Driver Seat | |||
| Power Folding Rear Seat | |||
| Push-Button Engine Start | |||
| Remote Start | |||
| Tilt Wheel | |||
| Tilt/Telescoping Steering Wheel | |||
Frequently asked questions
Is the 2015 GMC Yukon a new generation?
Yes. The 2015 Yukon is the first year of the fourth generation, with a redesigned body, cabin, structure, engines, seating, and technology.
What engines does the redesigned 2015 Yukon use?
The 2015 Yukon SLE and SLT use a new 5.3-liter EcoTec3 V8, while Denali uses a stronger 6.2-liter EcoTec3 V8. The new engine family delivers more power and better fuel economy than the prior versions.
Does the 2015 Yukon have a fold-flat third row?
Yes. A fold-flat third-row seat is standard on the redesigned 2015 Yukon, making it easier to switch between passenger space and cargo room. SLT also has power-folding rear seats.
What safety equipment changed on the 2015 Yukon SLT?
The 2015 Yukon SLT gained a broader standard driver-alert package. It includes forward-collision warning, lane-departure warning, blind-spot monitoring, rear cross-traffic alert, and a vibrating Safety Alert Seat; blind-spot monitoring moved from optional to standard.
Which Yukon trims continued for 2015?
The redesigned 2015 Yukon lineup consists of SLE, SLT, and Denali. The Commercial trim offered for 2014 did not continue into 2015.
2015 GMC Yukon Reviews
What owners are saying about the 2015 GMC Yukon.
4.3
2015 GMC Yukon
(199 reviews)
“Have had more initial mechanical problems with this vehicle than most of my previous GM purchases.”
“My family loves the seating room and cargo room of our new GMC Yukon XL Denali. The interior design is great.”