2025 GMC Sierra 1500 Interior: Dimensions & More

No matter where life takes you in West Easton or Alpha, you should have a reliable truck by your side. Fortunately, Star GMC Easton offers a wide variety of options for you to choose from. Among them is the 2025 GMC Sierra 1500. Learn more about what this robust truck has to offer so you can get back out onto the Easton roads and get back to living life to the fullest. Get started today by taking a closer look at the 2025 GMC Sierra 1500 interior dimensions and features of each configuration with our guide below. When you’re ready to make the switch, value your trade and apply for financing online with our quick and easy shopping tools.

2025 GMC Sierra 1500 Interior Dimensions

The 2025 GMC Sierra 1500 interior is available in three cabin configurations, including 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.

Test-Drive the 2025 GMC Sierra 1500 at Star GMC Easton

Now that you know more about the 2025 GMC Sierra 1500 interior, it’s time to explore the exterior details. Discover which configuration comes with the features you’re looking for and suits your Philipsburg style. If you need help finding your match or you want to know more about the GMC Sierra 1500 accessories, contact our Easton team and we’ll be happy to give you a tour of our available models. We hope to see you at Star GMC Easton soon!