2026 Mercedes-Benz GLS Interior Features & Seating

Shopping for a 7-seat Mercedes-Benz SUV that can handle both the school run in Mahwah and a weekend trip upstate? The 2026 Mercedes-Benz GLS is built for exactly that. It comes in three distinct trims — the GLS 450, GLS 580, and Mercedes-AMG® GLS 63 — each with its own take on the interior covered below. Contact Mercedes-Benz of Nanuet to reserve a test drive at our showroom.

Comfort That Comes Standard

Even in its base configuration, the 2026 GLS treats every seat well. Power-adjustable front seats with memory, heating, and ventilation keep the first row comfortable year-round, while Energizing seat kinetics work quietly in the background to reduce fatigue on longer drives through the Hudson Valley. KEYLESS GO® and HANDS-FREE ACCESS mean you can walk up with your hands full and let the GLS handle the rest, and the power-folding 50/50-split 3rd row turns switching between passengers and cargo into a one-button job.

Highlights include:

• Power front seats with memory, heating, and ventilation
• Energizing seat kinetics
• KEYLESS GO® & HANDS-FREE ACCESS power liftgate
• 4-zone automatic climate control
• Panorama roof
• Power-folding 50/50-split 3rd-row seats

Add a 1-year Mercedes-Benz Digital Extras subscription, a retractable luggage cover, and a built-in garage door opener, and the GLS is ready for daily life around Saddle River without checking a single option box.

A Cabin Built Around MBUX

Step inside and the GLS puts two 12.3-inch displays front and center — one for the driver, one for everything else. Mercedes-Benz User Experience (MBUX) responds to natural speech with “Hey, Mercedes,” recognizes you with biometric authentication, and keeps you moving with a full year of complimentary navigation updates and live traffic data. Wireless Apple CarPlay®* and Android Auto®** mean you’re rarely without your own apps, and the standard Burmester® Surround Sound System*** turns Ridgewood commutes into something worth looking forward to.

Highlights include:

• Dual 12.3-inch displays (touchscreen & digital cluster)
• MBUX with “Hey, Mercedes” voice control
• Wireless Apple CarPlay®* & Android Auto®**
• Burmester® Surround Sound System***
• 1 year of MB Navigation updates & Live Traffic Information
• Front-cabin wireless charging

2026 Mercedes-Benz GLS Seating Capacity and Dimensions

Here’s exactly how much room the GLS 3rd-row SUV gives you, base-configuration specs included:

• Passenger Capacity: 7 (6 optional)
• Headroom 1st Row: 39.4 inches
• Leg Room 1st Row: 40.3 inches
• Shoulder Room 1st Row: 59.3 inches
• Headroom 2nd Row: 40.2 inches
• Leg Room 2nd Row: 41.9 inches
• Shoulder Room 2nd Row: 58.5 inches
• Headroom 3rd Row: TBA
• Leg Room 3rd Row: 34.6 inches
• Shoulder Room 3rd Row: TBA
• Cargo Capacity: 17.4-84.7 cubic feet

GLS Interior FAQs

How many trim levels does the 2026 GLS come in?
Three: the GLS 450, GLS 580, and Mercedes-AMG® GLS 63, each with a different take on the standard features above.

Does the 2026 GLS seat 7 passengers?
Yes. Seven is standard, with an optional 6-passenger configuration when the 2nd row is upgraded to captain’s chairs.

What’s the maximum cargo capacity on the 2026 GLS?
Up to 84.7 cubic feet with both rear rows folded flat.

Explore The 2026 Mercedes-Benz GLS Interior At Mercedes-Benz of Nanuet

Ready to see it in person? Call (845) 624-1500 or contact us online to reserve a test drive in Nanuet and check out our current GLS inventory. Our team can also walk you through trim differences, or you can get a head start when you apply for financing online.