2025 GMC Sierra 1500 Interior

Though the 2025 GMC Sierra 1500 is well-known to Torrance for towing heavy loads, it features three surprisingly roomy cabin options and advanced interior features. Take a moment to compare the 2025 GMC Sierra 1500 Crew Cab dimensions to the Regular and Double Cabs. And be sure to see how the 2025 GMC Sierra 1500 Elevation interior features stack up to the interior features for the other GMC Sierra 1500 trims. Once you’re done reading our handy guide, fill out a pre-approval and head to Santa Monica GMC for a test drive in Santa Monica!

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.

See the GMC Sierra 1500 Interior Near Glendale

The best way to compare the 2025 GMC Sierra 1500 Crew Cab dimensions to the Regular Cab dimensions is to see both cabin styles for yourself at our Santa Monica showroom. We can also help you explore all the 2025 GMC Sierra 1500 Elevation interior features. If you have questions, give us a call at (424) 220-8820 or check out our GMC research guides, where you’ll find helpful reads about the 2025 GMC Sierra 1500 Towing Capacity.