The 2026 Mercedes-Benz GLS seats 7 and tows up to 7,700 lbs with a 375 hp inline-6 mild hybrid powertrain. Three models cover a wide range of capability, from the GLS 450 4MATIC® through the Mercedes-AMG GLS 63. This page answers the most common GLS questions, with inventory available at Mercedes-Benz of Tuscaloosa.
Powertrain and Performance
What engine does the 2026 Mercedes-Benz GLS have?
Every GLS 450 4MATIC® and GLS 580 4MATIC® is powered by a 3.0L inline-6 turbocharged engine paired with Mercedes-Benz EQ Boost mild hybrid drive. The GLS 450 4MATIC® produces 375 hp and 369 lb-ft of torque. The EQ Boost system adds an electric assist layer for smoother acceleration and improved efficiency. The Mercedes-AMG GLS 63 carries a different high-output powertrain tuned by Mercedes-AMG.
What transmission does the 2026 GLS use?
The 2026 GLS uses the 9G-TRONIC 9-speed automatic transmission. It pairs with Mercedes-Benz 4MATIC® fully variable all-wheel drive across all models.
Is the 2026 GLS a hybrid?
Yes, in a mild hybrid form. The EQ Boost system integrates a belt-driven starter-generator that assists the engine during acceleration and recovers energy during deceleration. It is not a plug-in hybrid and does not have an all-electric range.
What is the fuel economy of the 2026 GLS?
The GLS 450 4MATIC® is EPA-rated at 19 mpg city, 24 mpg highway, and 21 mpg combined. EPA fuel economy ratings
How fast is the 2026 Mercedes-Benz GLS 450 4MATIC®?
No 0-60 figure was included in the verified specification sheet for this page. For acceleration testing data, refer to official Mercedes-Benz resources or ask a product specialist at Mercedes-Benz of Tuscaloosa during your test drive appointment.
Towing and Capability
How much can the 2026 GLS tow?
The 2026 GLS tows up to 7,700 lbs when properly equipped. That gives the GLS meaningful capability within the full-size luxury SUV category.
Does the 2026 GLS have all-wheel drive?
Yes. All 2026 GLS models come standard with Mercedes-Benz 4MATIC® fully variable all-wheel drive. There is no rear-wheel-drive option on this vehicle.
What off-road features does the 2026 GLS offer?
The GLS includes AIRMATIC air spring suspension with adjustable ride height, which raises the vehicle for added ground clearance on rough terrain. The Transparent Hood display uses off-road cameras to show the ground directly in front of the vehicle on the MBUX screen, giving the driver a virtual view through the hood when navigating obstacles.
2026 GLS capability and features
Interior, Seating, and Cargo
How many people does the 2026 GLS seat?
The 2026 GLS seats 7 passengers across three rows.
How much cargo space does the 2026 GLS have?
Behind the third row, cargo capacity is 17.4 cu ft. With all rear seats folded, maximum cargo volume reaches 84.7 cu ft. The GLS is 205 inches long and 71.8 inches tall, giving it the footprint to carry both passengers and gear with confidence.
Does the 2026 GLS have third-row seating for adults?
The GLS is a full-size SUV, making it one of the more adult-friendly three-row options in the Mercedes-Benz lineup. For specific headroom and legroom figures in the third row, contact Mercedes-Benz of Tuscaloosa for a hands-on assessment.
What climate control does the 2026 GLS have?
The GLS 450 4MATIC® and GLS 580 4MATIC® come standard with four-zone automatic climate control. The GLS 580 4MATIC® also offers a five-zone system, and the GLS 450 4MATIC® can be equipped with five-zone climate control as an option.
Technology and Infotainment
What screen size does the 2026 GLS have?
The 2026 GLS features a 12.3-inch MBUX touchscreen and a 12.3-inch digital instrument cluster. The MBUX system includes augmented reality navigation, which overlays directional cues onto a live camera feed of the road ahead.
Does the 2026 GLS have Apple CarPlay® and Android Auto?
Yes. Wireless Apple CarPlay® and wireless Android Auto are both standard on every 2026 GLS model.
Does the 2026 GLS have wireless charging?
Yes. Wireless device charging is standard for the front row.
What sound system does the 2026 GLS come with?
The 2026 GLS includes a 13-speaker Burmester® surround-sound system as standard equipment across all models.
Does the 2026 GLS have voice control?
Yes. The “Hey Mercedes” natural-language voice assistant is standard and integrates with navigation, climate, media, and other vehicle functions.
Safety and Driver Assistance
What safety features are standard on the 2026 GLS?
Standard safety features on the 2026 GLS include forward collision warning with pedestrian detection, Active Brake Assist with Cross-Traffic Function, Active Distance Assist DISTRONIC adaptive cruise control, Active Lane Keeping Assist, Active Lane Change Assist, Active Stop-and-Go Assist, blind spot intervention, front cross-traffic alert, Evasive Steering Assist, road-sign recognition, a driver attention monitor, a 360-degree surround-view camera system, and a self-parking feature.
Does the 2026 GLS have a blind spot monitor?
Yes. Blind spot intervention is standard and can actively help steer the vehicle back into the lane if the driver signals or drifts toward an occupied blind zone.
Does the 2026 GLS have a 360-degree camera?
Yes. A surround-view 360-degree camera system is standard equipment on all 2026 GLS models.
Models
What models are available on the 2026 Mercedes-Benz GLS?
Three models are available for the 2026 GLS: the GLS 450 4MATIC®, the GLS 580 4MATIC®, and the Mercedes-AMG GLS 63. Each model offers a distinct blend of power, interior appointments, and available features.
What makes the Mercedes-AMG GLS 63 different from the GLS 450 4MATIC®?
The Mercedes-AMG GLS 63 is developed by Mercedes-AMG and carries AMG-specific powertrain tuning, AMG-specific chassis calibration, AMG exterior styling, and AMG interior appointments. The GLS 450 4MATIC® delivers the core GLS experience with 375 hp, Mercedes-Benz 4MATIC® all-wheel drive, and the full MBUX and safety suite.
Colors and New Features for 2026
What new exterior colors are available on the 2026 GLS?
Two new MANUFAKTUR paint options debut for 2026: MANUFAKTUR Silicon Grey and MANUFAKTUR Moonlight White Magno. A third exclusive finish, MANUFAKTUR Cirrus Silver Magno, is reserved for the Mercedes-AMG GLS 63 Arctic Silver Edition.
What is MANUFAKTUR paint?
MANUFAKTUR is Mercedes-Benz’s individual-specification program for special paint finishes and bespoke interior options. MANUFAKTUR colors are applied using additional preparation steps and are offered as premium options above the standard paint palette.
Warranty and Ownership
What warranty does the 2026 Mercedes-Benz GLS come with?
The 2026 GLS is covered by a 4-year / 50,000-mile basic warranty and a 4-year / 50,000-mile powertrain warranty. Both terms run concurrently from the original in-service date.
Does Mercedes-Benz of Tuscaloosa sell Certified Pre-Owned GLS models?
Mercedes-Benz Certified Pre-Owned vehicles go through a rigorous multi-point inspection and carry extended warranty protection backed by Mercedes-Benz. Check current Certified Pre-Owned GLS availability directly with Mercedes-Benz of Tuscaloosa.
Get Your 2026 GLS Questions Answered in Tuscaloosa
Mercedes-Benz of Tuscaloosa carries 2026 GLS inventory across the model range. Whether you are deciding between the GLS 450 4MATIC® and GLS 580 4MATIC® or configuring a Mercedes-AMG GLS 63 with a MANUFAKTUR color, the product specialists here can walk you through every detail in person. Check current inventory, schedule a test drive, or bring your trade-in for an estimate.
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