The 2015 GMC Acadia SLT-1 is a midsize three-row crossover built around GM’s 3.6L V6 engine, rated at 281 horsepower and 266 lb-ft of torque. That powerplant is paired with a six-speed automatic transmission and is offered with front-wheel drive as standard; all-wheel drive was available from the factory. The V6 provides the Acadia with the performance and towing capability expected for its class while maintaining a family-oriented interior layout and practical cargo flexibility.

Drivetrain and chassis
- 3.6L V6 producing 281 hp and 266 lb-ft of torque
- Six-speed automatic transmission
- Front-wheel drive standard; available AWD
- Class-appropriate towing capacity when properly equipped (factory towing provisions and hitch preparation)

Exterior and convenience
- 18-inch alloy wheels (factory finish)
- Body-color exterior trim with integrated roof rails on most factory configurations
- Power-adjustable outside mirrors (heated on many SLT-1 examples)
- Remote keyless entry, power windows and door locks, and a multi-function steering wheel
- Hands-free cruise control and available remote start depending on factory options

Interior and seating
- Three-row seating for up to seven occupants with a 2/3/2 layout (second-row bench) and split-folding second- and third-row seats for flexible cargo/passenger combinations
- Leather-appointed seating surfaces are standard for the SLT-1, with heated front seats included from the factory
- Power-adjustable driver’s seat with lumbar support; front passenger power adjustment available on certain builds
- Tri-zone automatic climate control to maintain separate temperature settings for driver, front passenger and rear passengers

Infotainment and connectivity
- GMC IntelliLink infotainment system with color touchscreen interface, supporting Bluetooth hands-free calling and audio streaming
- USB and auxiliary inputs plus AM/FM audio; SiriusXM satellite radio capability and navigation were available as factory options
- Steering-wheel-mounted audio and phone controls to minimize driver distraction
- OnStar telematics with emergency/crash response and available 4G LTE Wi-Fi hotspot on properly equipped vehicles

Safety and driver aids
- Standard safety suite includes StabiliTrak electronic stability control, four-wheel anti-lock brakes (ABS), electronic traction control and a tire pressure monitoring system
- Comprehensive airbag coverage with front airbags, front side-impact airbags and full-length side curtain airbags for all three rows
- Rearview camera equipment was commonly included at this trim level; additional driver-assist features (such as blind-spot monitoring and rear parking sensors) were available as factory options

Overall, the SLT-1 trim for 2015 focuses on a balance of V6 performance, three-row practicality and comfort-oriented features, with a set of infotainment and safety technologies consistent with a mid-level premium crossover of its model year.