2015 GMC Sierra 1500

OverviewThe 2015 GMC Sierra 1500 SLT Crew Cab is a full-size pickup that blends rugged strength with upscale comfort. With its bold styling, premium materials, and powerful engine options, the Sierra SLT is designed to handle tough jobs while keeping passengers comfortable and connected. The Crew Cab layout provides generous interior space for up to five or six passengers, while the 5 ¾-foot bed offers versatile cargo capacity.
Performance & CapabilityThe SLT trim is known for offering strong, reliable performance:
5.3L EcoTec3 V8 engine – 355 horsepower, 383 lb-ft of torque
Paired with a 6-speed automatic transmission
Available in rear-wheel drive or 4WD configurations
Maximum towing capacity: up to 11,200 lbs (when properly equipped)
Advanced trailering technologies available, including trailer sway control
Fuel efficiency is improved through direct injection, variable valve timing, and cylinder deactivation, giving the truck better everyday usability.
Exterior FeaturesThe Sierra SLT offers a commanding presence with premium touches:
Chrome grille surround and bumpers
18-inch (optional 20-inch) alloy wheels
LED signature lighting and projector-beam headlights
Fog lights and chrome mirror caps
Power-folding heated side mirrors
CornerStep rear bumper for easier bed access
Interior & ComfortThe SLT trim emphasizes refinement and comfort in the cabin:
Leather-appointed seating surfaces
Heated and ventilated front seats with power adjustments
Dual-zone automatic climate control
Leather-wrapped steering wheel with mounted controls
Spacious rear seating in the Crew Cab configuration
Quiet cabin design with triple-sealed doors and sound-deadening materials
Technology & ConnectivityModern features make the Sierra SLT a smart and connected truck:
8-inch touchscreen GMC IntelliLink® infotainment system
Bluetooth® hands-free calling and audio streaming
Navigation system available
Apple CarPlay® compatibility (later updates)
Premium Bose® audio system (available)
Multiple USB ports and power outlets
Remote start and keyless entry
Safety & Driver AssistanceThe Sierra SLT offers strong safety features to match its capability:
Rearview camera system
Front and rear parking sensors
Lane Departure Warning and Forward Collision Alert (available)
Stability and traction control systems
Advanced airbag system
OnStar® emergency services and telematics
Why It Stands OutThe 2015 GMC Sierra 1500 SLT Crew Cab 5 ¾ ft is a well-rounded truck that provides serious towing and hauling power while offering a luxurious, feature-packed interior. Whether you need a workhorse for tough jobs or a comfortable vehicle for family and daily driving, the Sierra SLT delivers on both fronts.