Chevrolet Suburban

2026 CHEVROLET SUBURBAN Z71 4WD — UNITED STATES SPECIFICATION

ENGINE AND DRIVETRAIN

The Z71 is powered by the 5.3-litre EcoTec3 V8, GM engine code L84 — a naturally aspirated, overhead-valve, all-aluminium 90-degree V8 of 5,327 cc with direct injection, variable valve timing and Dynamic Fuel Management cylinder deactivation. Bore and stroke are 96.0 x 92.0 mm and the compression ratio is 11.0:1. Output is 355 hp (265 kW) at 5,600 rpm and 519 Nm (383 lb-ft) at 4,100 rpm. Automatic stop/start is standard. Drive passes through a Hydra-Matic 10-speed automatic with Electronic Precision Shift to a two-speed active transfer case offering 2WD, Auto, 4High and 4Low ranges, with a mechanical limited-slip differential confirmed as standard equipment on this vehicle's factory build sheet. The engine runs on regular unleaded, 87 AKI minimum. Engine and transmission are of United States origin and the vehicle was assembled at GM's Arlington, Texas plant.

CHASSIS, STEERING AND BRAKES

Body-on-frame construction on a fully boxed high-strength steel frame. The front suspension is independent coil-over-shock; the rear is an independent multi-link coil arrangement. This unit carries the Z71 off-road tuned Premium Smooth Ride suspension with skid plates and Hill Descent Control. Steering is electric power-assisted rack-and-pinion. Braking is four-wheel vented disc with ABS, StabiliTrak electronic stability control, traction control and brake assist. Wheels are 20-inch bright machined aluminium painted Technical Gray, shod with all-terrain blackwall tyres (275/60R20). Direct-reading tyre pressure monitoring is fitted.

DIMENSIONS AND CAPACITIES

The Suburban measures 5,733 mm long, 2,385 mm wide across the mirrors and 1,923 mm high, on a 3,407 mm wheelbase, with 203 mm of ground clearance. GM does not publish a body-only width excluding mirrors, so the mirror-inclusive figure is the one recorded here — fold the mirrors before container cubing. The fuel tank holds 106 litres. Cargo volume is 1,164 litres behind the third row, 2,662 litres behind the second row and 4,098 litres with both rear rows folded. Maximum towing capacity is 3,810 kg. IMPORTANT: GM publishes neither a gross vehicle weight rating nor a per-configuration kerb weight for the 5.3-litre 4WD Suburban in its consumer, trailering or service literature, and no GVWR appears on this vehicle's Monroney label; both figures must be read from the door-jamb certification label before they are used for freight cubing or for any weight-banded duty tier. NHTSA certifies the carline in GVWR Class 2F (3,175-3,629 kg / 7,001-8,000 lb), which is indicative of the class only and is not a homologated figure for this unit.

FUEL ECONOMY AND EMISSIONS

The EPA rates this configuration at 16 mpg combined, 14 mpg city and 19 mpg highway, equivalent to 6.2 US gallons per 100 miles. The Monroney label states 571 grams of CO2 per mile, which converts to 355 g/km. THIS IS A US EPA COMBINED TEST CYCLE FIGURE, NOT A WLTP FIGURE. Destinations that band import duty, excise or registration tax on WLTP CO2 — and the EU, UK, Thailand and Barbados regimes among others do — must re-derive the number from a WLTP homologation certificate. The two cycles are not interchangeable and the EPA value must not be substituted into a WLTP tier table.

EXTERIOR

Finished in Black. LED headlamps and LED taillamps with animated lighting, LED front fog lamps, IntelliBeam automatic high beams, a high-approach front fascia, black tubular assist steps, red recovery hooks, dual exhaust with dual tips, roof rails, heated power-folding outside mirrors, factory trailering equipment with tow hitch and tow hooks, a power liftgate and rain-sensing wipers.

INTERIOR AND SEATING

Jet Black leather-appointed cabin seating SEVEN in a 2+2+3 layout. The factory build sheet records second-row power-release BUCKET seats as a priced option replacing the standard 60/40 split bench, which reduces the seat count from eight to seven — this is the authoritative source for the seating configuration and it is confirmed by the manufacturer renders of this build. Heated front power bucket seats with leather seating surfaces, heated second-row outboard seats, a power-folding 60/40 split third row, a heated steering wheel, tri-zone automatic climate control, driver-seat and outside-mirror memory settings, wireless device charging and two 120-volt power outlets.

INFOTAINMENT AND CONNECTIVITY

A 17.7-inch diagonal advanced colour LCD display with Google built-in, including navigation and connected apps capability, paired with a reconfigurable driver cluster. Wireless Apple CarPlay and wireless Android Auto for compatible phones, a 10-speaker Bose Centerpoint surround sound audio system, SiriusXM audio with trial subscription, Bluetooth, USB ports, wi-fi hotspot capability, OnStar connected services, Universal Home Remote, keyless open/lock/start, a key card, remote vehicle start, and an interior camera that requires a future software update to activate.

DRIVER ASSISTANCE AND SAFETY

Automatic Emergency Braking and Enhanced Automatic Emergency Braking, Front Pedestrian and Bicyclist Braking, Forward Collision Alert, Blind Zone Steering Assist, Enhanced Lane Keep Assist, Safety Alert Seat, Rear Cross Traffic Braking, Rear Pedestrian Alert, Enhanced Automatic Parking Assist, HD Surround Vision, Adaptive Cruise Control, StabiliTrak with traction control, brake assist and a theft deterrent system. Airbag protection covers driver and front passenger frontal airbags, front and rear side-impact airbags and roof-rail side-curtain airbags across all three rows.

OFF-ROAD HARDWARE

The Z71 grade adds a two-speed transfer case with a 4Low range, Hill Descent Control, front and transfer-case skid plates, a mechanical limited-slip differential, the high-approach front fascia, all-terrain blackwall tyres, red recovery hooks and off-road tuned suspension.