2018 Chevrolet Suburban 3500: What's New, Specs & Features
Last updated August 4, 2026
The 2018 Chevrolet Suburban 3500 is a quiet carryover with no major product changes. Its 6.0-liter V8, standard 4WD, heavy-duty chassis, and LS and LT trim lineup continue from 2017.
About the 2018 Chevrolet Suburban 3500
11th generation Suburban (2015-2020), fourth model year for the K2XX-based heavy-duty 3500HD variant; no major refresh.
Chevrolet positions the Suburban as its largest SUV for moving people and cargo in comfort, and the 3500HD version shifts that formula toward fleet and commercial duty. It is a long-wheelbase, truck-based SUV for organizations that need more load-carrying ability than a regular Suburban while keeping a familiar SUV cabin, real rear seating, and modern infotainment. The core appeal is simple: one vehicle that can haul passengers, equipment, and work gear without stepping up to a full van.
The LS is the utility-focused version, with an 11,000-pound GVWR chassis setup, trailering equipment, tri-zone climate control, and an 8-inch touchscreen with Apple CarPlay and Android Auto. The LT adds a more comfortable cabin with leather and heated front seats, navigation, Bose audio, power-folding rear seats, and added parking and blind-spot assistance.
2018 Chevrolet Suburban 3500 specs and features by trim
| Feature | ||
|---|---|---|
| Engine | V8, 6.0 Liter | V8, 6.0 Liter |
| Transmission | Automatic, 6-Spd HD | Automatic, 6-Spd HD |
| Drivetrain | 4WD | 4WD |
| Fuel Type | Gas | Gas |
| MPG City | 10 mpg | 10 mpg |
| MPG Highway | 15 mpg | 15 mpg |
| Horsepower | 360 hp | 360 hp |
| Torque | 380 lb-ft | 380 lb-ft |
| Max Towing | 3000 lb | 3000 lb |
| Trunk/Cargo | 121.1 cu-ft | 121.1 cu-ft |
| Rear Legroom | 34.5 in | 34.5 in |
| Seats | 8 | 8 |
| Doors | 4 | 4 |
| Alarm System | ||
| Blindspot Sensors | ||
| Lane Departure Warning | ||
| Park Assist | ||
| Rear View Camera | ||
| Alloy Wheels | ||
| Fog Lights | ||
| Memory Exterior Mirrors | ||
| Power Close Liftgate/Trunk | ||
| Power Liftgate/Trunk Release | ||
| Roof Rails | ||
| Navigation System | ||
| Rear DVD Entertainment System | ||
| Smartphone Interface | ||
| Subwoofer | ||
| Video Input | ||
| Auto-Dimming Interior Mirror | ||
| Dual Power Rear Seats | ||
| Heated Front Seats | ||
| Heated Rear Seats | ||
| Heated Steering Wheel | ||
| Integrated Garage Door Opener | ||
| Leather Seats | ||
| Memory Driver's Seat | ||
| Memory Pedals | ||
| Memory Steering Wheel | ||
| Power Adjustable Pedals | ||
| Power Folding Rear Seat | ||
| Power Folding Third Row Seat | ||
| Push-Button Engine Start | ||
| Remote Start | ||
| Third Row Seat | ||
| Tilt Wheel | ||
| Tilt/Telescoping Steering Wheel | ||
Frequently asked questions
What changed on the 2018 Chevrolet Suburban 3500 compared with the 2017 model?
No major product changes were made for 2018. The Suburban 3500 carried over with the same V8, 4WD system, heavy-duty chassis, and LS and LT trim structure.
Did the 2018 Chevrolet Suburban 3500 get a new engine or transmission?
No, the 2018 Suburban 3500 retained its 6.0-liter V8 and 6-speed automatic transmission. The engine produces 360 horsepower and 380 lb-ft of torque.
Was the 2018 Chevrolet Suburban 3500 redesigned?
No, the 2018 Suburban 3500 was not redesigned or substantially refreshed. It remained part of the Suburban’s 11th generation and kept the same basic body and heavy-duty chassis setup.
How do the 2018 Chevrolet Suburban 3500 LS and LT differ?
The LS is the utility-focused trim, while the LT adds more comfort and driver assistance. LT equipment includes leather and heated front seats, navigation, Bose audio, power-folding rear seats, blind-spot monitoring, rear cross-traffic alert, and front and rear parking sensors.