2025 GMC Sierra 1500 Interior

Whether you’re looking for a truck that can accommodate all of your passengers or provides the raw power you need in Comfort, the new GMC Sierra has it all. Before you take a look under the hood, first review the 2025 GMC Sierra 1500 interior details. Below, we cover the following:

• GMC Sierra 1500 interior dimensions
• GMC Sierra 1500 interior accessories
• GMC Sierra 1500 interior features

There are a variety of trims and engine configurations to choose from, so we’re confident you’ll find your match at Ancira Buick GMC. Take your San Antonio drives to new heights when you get behind the wheel of this rugged truck. Contact our Boerne team to get started today.

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.

Take a Look at the 2025 GMC Sierra 1500 Interior Up Close at Ancira Buick GMC

We’re excited to show you what the 2025 GMC Sierra 1500 interior can offer your Kerrville commute. Continue your research online to learn more or schedule a test drive to do some in-person exploration. Feel free to start your car-buying journey online with our trade-in calculator and simple finance application. We hope to see you soon.