Chevrolet Suburban High Country

The Chevrolet Suburban High Country is the range-topping trim of the Suburban extended-length full-size SUV. It was first introduced for the 2021 model year, in conjunction with the debut of the twelfth-generation Suburban.

Quick Facts

	First-Gen	Second-Gen
Model Years	2021 – Present	2029 (Expected)
Platform	T1	-
Engines	Turbocharged 3.0L I6 LM2 (2021 – 2024), Turbocharged 3.0L I6 LZ0 (2025 – Present), Atmospheric 6.2L V8 L87	-
Transmissions	10-Speed Auto	-
Production	GM Arlington Plant, Texas, USA	-
Segment	Extended-Length, Full-size, Five-Door SUV	-
Availability	U.S.A., Canada, Mexico, Middle East

First Generation (Twelfth-Gen Suburban)

Chevrolet Suburban High Country

Model Years	2021 – Present
Assembly Location	GM Arlington Plant, Texas, USA
Segment	Extended-Length, Full-size, Five-Door SUV
Availability	U.S.A., Canada, Mexico, Middle East
Layout	Front-Engined, Longitudinal
Engine(s)	Turbocharged 3.0L I6 LM2 (2021 – 2024), Turbocharged 3.0L I6 LZ0 (2025 – Present), Atmospheric 6.2L V8 L87
Transmission(s)	10-Speed Automatic
Drive Wheels	Rear-Wheel Drive, Four-Wheel Drive
Platform	T1
Refresh(es)	2025 Model Year

Making its debut in conjunction with the twelfth-generation 2021 Chevrolet Suburban, the High Country trim level stands as the range-topping model of the Suburban lineup. Suburban High Country examples are highlighted by a plethora of premium features, including unique exterior and interior accents, along with many standardized features.

Exterior

Trim-specific grille with bronze accents and High Country badging
Trim-specific 22-inch, Sterling Silver premium painted wheels with chrome inserts (RPO code RPT)

Interior

Eight-inch-diagonal, configurable color instrument and information cluster
High Country sill plates
High Country seat embroidery
Expanded color and trim choices

Mechanical

Standard 6.2L V8 L87 engine (flagship powerplant in twelfth-gen Suburban range)
Standard Magnetic Ride Control
Standard Driver Alert Package
Standard Enhanced Display and Alert Package
Standard 15-inch diagonal Head-Up Display
Available Air Ride Adaptive Suspension
Available Adaptive Cruise Control (2021 – Present) and Super Cruise (2023 – Present)

With the introduction of the refreshed 2025 Chevrolet Suburban, the High Country trim level also received numerous updates, including a revised front fascia with Galvano chrome trim, 24-inch wheels, and enhanced interior appointments consisting of genuine wood trim.

Chevrolet Suburban High Country

It’s also worth noting that the Chevrolet Suburban High Country is the longer variant of the Tahoe High Country.

Year	Engine	Fuel	Aspiration	Transmission	Horsepower @ RPM	Torque @ RPM
2021 – 2024	3.0L I6 LM2	Diesel	Turbocharged	10-Speed Auto	277 @ 3750	460 @ 1500
2021 – Present	6.2L V8 L87	Gasoline	Atmospheric	10-Speed Auto	420 @ 5600	460 @ 4100
2025 – Present	3.0L I6 LZ0	Diesel	Turbocharged	10-Speed Auto	305 @ 3750	495 @ 1500