2025 GMC Sierra 1500 Interior: Dimensions & More

Whether you’re looking for a new daily commuter vehicle or you want something that you can trust to have your back on the job in Crestwood, there’s something for everyone here at Champion Chevrolet. At the forefront of our lineup, you’ll find the 2025 GMC Sierra 1500, a spacious and capable truck that’s perfect for your Louisville drives. With our detailed guide below, you can explore the 2025 GMC Sierra 1500 interior dimensions and features. When you’re ready to invest, value your trade and apply for financing online.

2025 GMC Sierra 1500 Interior Dimensions

The 2025 GMC Sierra 1500 interior is available in three cabin configurations: Regular, Double, and Crew. To get a sense of how the GMC Sierra 1500 Crew Cab dimensions compare to the GMC Sierra 1500 Double Cab dimensions, explore the different measurements for each option below: 

Regular Cab

• Seating Capacity: 3 passengers
• Front Headroom: 43.1 inches
• Front Legroom: 44.5 inches
• Front Shoulder Room: 66.0 inches
• Front Hip Room: 60.9 inches

Double Cab

• Seating Capacity: 6 passengers
• Front/Rear Headroom: 43.0 inches/39.9 inches
• Front/Rear Legroom: 44.5 inches/35.2 inches
• Front/Rear Shoulder Room: 66.0 inches/64.9 inches
• Front/Rear Hip Room: 61.2 inches/60.2 inches

Crew Cab

• Seating Capacity: 6 passengers
• Front/Rear Headroom: 43.0 inches/40.1 inches
• Front/Rear Legroom: 44.5 inches/43.4 inches
• Front/Rear Shoulder Room: 66.0 inches/65.2 inches
• Front/Rear Hip Room: 61.2 inches/60.2 inches 

2025 GMC Sierra 1500 Interior Features 

As you explore the trim levels of the Sierra, you’ll find the 2025 GMC Sierra 1500 Elevation interior has a slightly different suite of features from the Pro, SLE, and other trims. To get a sense of which trim is right for you, compare key 2025 GMC Sierra 1500 interior accessories and features for each configuration: 

Pro

• 12-volt auxiliary front power outlet
• 3.5-inch diagonal monochromatic driver information center
• Automatic Emergency Braking
• Bluetooth®
• GMC Pro Safety
• Lane Keep Assist with Lane Departure Warning
• Single-zone climate control
• Wireless Apple CarPlay®/Android Auto™

SLE

• Pro Features, Plus: 
• Hitch Guidance
• 12.3-inch diagonal color driver information center
• 13.4-inch diagonal GMC Premium Infotainment System with Google built-in
• Dual-zone automatic climate control
• Heated front seats
• Heated steering wheel

Elevation

• SLE Features, Plus: 
• Rear window defogger

SLT

• Elevation Features, Plus: 
• Inside rearview auto-dimming mirror

AT4

• SLT Features, Plus: 
• Heated/ventilated front seats
• Adaptive Cruise Control
• HD Surround Vision
• Wireless charging

Denali

• AT4 Features, Plus 
• Enhanced Automatic Emergency Braking
• Heated rear seats

AT4X

• Denali Features (Except for Enhanced Automatic Emergency Braking), Plus: 
• Automatic Emergency Braking
• Rear camera mirror
• Bed view camera
• Head-up display
• Leather-wrapped steering wheel

Denali Ultimate

• AT4X Features (except for bed view camera), Plus: 
• Enhanced Automatic Emergency Braking
• Bluetooth®
• Heated rear seats
• Super Cruise™ capabilities

If you’re curious as to why we didn’t include information about the Sierra 1500 audio system above, that’s because the speaker system that is available to you will change based on how you configure your Sierra 1500. That’s to say, audio system availability isn’t strictly based on which trim you choose. So, while you will ultimately end up with a 2-speaker system, a 6-speaker system, or a Bose Premium Series audio system that includes 12 speakers with CenterPoint, you should speak with one of our representatives to get a clear and concise picture of what your options will be.

Explore the New GMC Sierra 1500 Interior at Champion Chevrolet

There are plenty of GMC Sierra 1500 interior accessories for you and your passengers to enjoy on the Shelbyville roads. If you’re ready to get behind the wheel of this incredible truck, contact our Lagrange team and schedule a test drive. We’ll be happy to give you a tour of our available models to help you find your perfect match. While you’re here, be sure to ask about our new vehicle specials for savings on your next purchase.