Chevrolet Suburban

2026 CHEVROLET SUBURBAN Z71 4WD DURAMAX TURBO-DIESEL - US SPECIFICATION

ENGINE AND DRIVETRAIN

The vehicle is powered by the 3.0-litre LZ0 Duramax turbo-diesel inline-six, a DOHC 24-valve aluminium-block engine of 2,956 cc fitted with common-rail direct injection and a variable-geometry turbocharger. Output is 305 hp (227 kW) and 671 Nm (495 lb-ft) of torque, the latter available from low in the rev range. Compression ratio is 15.0:1. Drive reaches the road through a GM 10-speed automatic transmission with Electronic Precision Shift and a two-speed transfer case, giving selectable two-wheel drive, automatic four-wheel drive, four-high and four-low. A mechanical limited-slip differential and hill descent control are fitted. The engine is built in the United States and the vehicle is assembled at GM's Arlington, Texas plant.

CHASSIS, STEERING AND BRAKES

Independent front suspension and a five-link rear axle are used, with the Premium Smooth Ride suspension calibration. The Z71 package adds an off-road tuned ride height, underbody skid plates and a high-approach front fascia. Wheels are 20-inch bright machined aluminium painted Technical Gray, shod with all-terrain blackwall tyres. Automatic stop/start is standard.

DIMENSIONS AND CAPACITIES

Overall length is 5,748 mm (226.3 in) and the wheelbase measures 3,407 mm (134.1 in). Body width excluding mirrors is 2,060 mm (81.1 in). Chevrolet publishes an overall height range of 1,920-1,946 mm (75.6-76.6 in) across the 2026 Suburban line and does not publish a separate Z71 figure; the off-road suspension and all-terrain tyres place this build at the upper end of that range. Cargo volume is 1,175 litres (41.5 cu ft) behind the third row, 2,656 litres (93.8 cu ft) behind the second row and 4,092 litres (144.5 cu ft) with both rear rows folded. Fuel tank capacity is 106 litres (28 US gallons). With the Max Trailering Package fitted, the 2026 Chevrolet Trailering Guide rates a 4WD Suburban with the 3.0L Duramax at 3,538 kg (7,800 lb) of trailer weight. Kerb weight and gross vehicle weight rating are not published by the manufacturer for this configuration and have deliberately been left unrecorded.

FUEL ECONOMY AND EMISSIONS

The EPA fuel economy label on this build reads 20 mpg city, 24 mpg highway and 22 mpg combined (11.8, 9.8 and 10.7 litres per 100 km respectively), with a stated tailpipe figure of 460 grams of CO2 per mile, equivalent to 286 g/km on the EPA combined cycle.

OFF-ROAD HARDWARE AND TOWING

The Z71 specification comprises the high-approach front fascia, underbody skid plates, red front recovery hooks, all-terrain tyres, hill descent control and the two-speed transfer case. The Max Trailering Package adds a trailer brake controller, Smart Trailer Integration Indicator, Hitch View and Blind Zone Steering Assist with Trailering. Trailering equipment and a dual exhaust with dual tips are fitted.

EXTERIOR

Finished in Summit White. Equipment includes LED headlamps and taillamps with animated lighting, LED front fog lamps, heated power-folding outside mirrors, black tubular assist steps, rain-sensing wipers and a power panoramic tilt-sliding sunroof with a power sunshade.

INTERIOR AND SEATING

The cabin is trimmed in Jet Black with leather seating surfaces. Seating is a seven-passenger 2+2+3 layout: heated front power bucket seats, second-row heated bucket seats (captain's chairs) with power release, and a third-row 60/40 split-bench with power fold. Also fitted are tri-zone automatic climate control, a heated steering wheel, memory settings for the driver seat and outside mirrors, an interior camera, and all-weather floor liners for all three rows with a matching cargo mat.

INFOTAINMENT AND CONNECTIVITY

A 17.7-inch diagonal advanced colour LCD display runs Google built-in compatibility with navigation capability and connected apps, plus wireless Apple CarPlay and wireless Android Auto. Audio is a 10-speaker Bose Centerpoint surround sound system. SiriusXM satellite radio with a trial subscription, wireless device charging, two 120-volt power outlets, Universal Home Remote and eight years of OnStar Basics are included.

DRIVER ASSISTANCE AND SAFETY

Standard driver assistance comprises Enhanced Automatic Emergency Braking, Front Pedestrian and Bicyclist Braking, Forward Collision Alert, Enhanced Lane Keep Assist, Rear Cross Traffic Braking, Rear Pedestrian Alert, Enhanced Automatic Parking Assist, HD Surround Vision, IntelliBeam automatic high beams, adaptive cruise control and the Safety Alert Seat. Passive protection includes frontal, seat-mounted side-impact and three-row head-curtain airbags, a theft-deterrent system and tyre pressure monitoring.