2023 Chevrolet Silverado 3500HD High Country Specs

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Chevrolet Silverado 3500HD
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If you want everything the 3500HD has to offer, you’ll need to pay for it. The top-tier High Country is an expensive proposition, but it does bring a lot to the table. It comes with 20-inch alloy wheels, chrome side steps, body-color bumpers, LED bed lighting, a spray-on bedliner, front and rear parking sensors, and a power tailgate on the outside. Interior convenience features include an eight-inch digital gauge cluster, ventilated front bucket seats, leather upholstery on all seats, a wireless charging pad, and the high-end infotainment system with navigation and a seven-speaker Bose audio system. Bed-view and 360-degree surround-view cameras are also added. It’s the only trim to get standard blind-spot monitoring, rear cross-traffic alert, and lane-change alert.

Select configuration:
Starting Price (MSRP)
6.6L V8 Gas
6-Speed Automatic
Four-Wheel Drive
Body Type
Seating capacity
5 seater
Trunk Volume
Fuel Economy
City: TBC
Hwy: TBC

Performance Specs

Engine and Transmission

  • Engine
    6.6L V8 Gas
    6.6L Turbo V8 Diesel (+$9,750)
  • Horsepower
    401 hp @ 5200 rpm
  • Torque
    464 lb-ft @ 4000 rpm
  • Transmission
    6-Speed Automatic
    10-Speed Automatic (Optional)
  • Drivetrain
    Four-Wheel Drive


  • Steering Type
    Pwr Recirculating Ball
  • Turning Diameter
    52.7 ft


  • Wheels Type
    Aluminum Wheels
  • Front Wheel Size
    20" x 8.5"
  • Rear Wheel Size
    20" x 8.5"


  • Front Tire
  • Rear Tire
  • Spare Tire

Fuel and MPG

Fuel Tank

  • Fuel Tank Capacity
    36 gallons

Dimensions and Measurement

Exterior Dimensions

  • Length
    249.95 in
  • Height
    80.87 in
  • Max Width
    81.85 in
  • Wheelbase
    158.94 in

Interior Space

  • Seating Capacity
    5 seater
  • Front Seat Leg Room
    44.53 in
  • Front Seat Headroom
    43.03 in
  • Front Seat Shoulder Room
    66.02 in
  • Front Seat Hip Room
    61.18 in
  • Rear Seat Leg Room
    43.4 in
  • Rear Seat Headroom
    40.12 in
  • Rear Seat Shoulder Room
    65.3 in
  • Rear Seat Hip Room
    60.24 in

Weight and Towing

  • Maximum Towing Capacity
    20,000 lbs

Cargo Box Dimensions

  • Box Length (Floor)
    82.25 in
  • Box Width (Floor)
    71.4 in
  • Box Width (Wheelhousings)
    51.85 in
  • Box Height (Area)
    21 in
  • Cargo Volume
    69.5 ft³

Colors and Materials

Standard Interior Materials

  • Jet Black, Perforated Leather Seating surfaces
  • Jet Black/Umber, Perforated Leather Seating surfaces

Features and Options


  • HD Radio
    Not Available
  • Bluetooth Connection
  • Hard Disk Drive Media Storage
    Not Available
  • Premium Sound System
  • Satellite Radio
  • Smart Device Integration
  • WiFi Hotspot
  • Auxiliary Audio Input
  • Entertainment System
    Not Available
  • MP3 Player

Interior Trim

  • Bucket Seats
    Not Available
  • Cloth Seats
    Not Available
  • Leather Seats
  • Leather Steering Wheel
    Not Available
  • Premium Synthetic Seats
    Not Available
  • Vinyl Seats
    Not Available
  • Woodgrain Interior Trim
    Not Available
  • Sun/Moonroof


  • Head-Up Display
  • Navigation System
  • Steering Wheel Audio Controls
  • Power Liftgate
    Not Available
  • Power Mirror(s)
  • A/C
  • Adaptive Cruise Control
    Not Available
  • Automatic Parking
    Not Available
  • Climate Control
  • Cooled Front Seat(s)
  • Cooled Rear Seat(s)
    Not Available
  • Cruise Control
  • Hands-Free Liftgate
    Not Available
  • Heated Front Seat(s)
  • Heated Rear Seat(s)
  • Heated Steering Wheel
  • Keyless Entry
  • Multi-Zone A/C
  • Power Driver Seat
  • Power Passenger Seat
  • Remote Engine Start
  • Remote Trunk Release
    Not Available
  • Seat Memory
  • Universal Garage Door Opener
  • Seat-Massage
    Not Available
  • Rear A/C
  • Keyless Start
  • Navigation from Telematics
    Not Available
  • Telematics

Additional Packages

Gooseneck / 5th Wheel Prep Package


-- Hitch platform to accept Gooseneck or 5th Wheel hitch. Includes hitch platform with tray to accept ball, stamped bed holes with removable caps installed and bed mounted 7-pin trailer harness (similar to UY2 harness). (Included with (PDM) High Country Deluxe.) Gooseneck / 5th Wheel Prep Package Hitch platform to accept Gooseneck or 5th wheel hitch Hitch platform with tray to accept ball and stamped box holes with caps installed Box mounted 7-pin trailer harness May require additional optional equipment

High Country Deluxe


includes (PDJ) Safety Package II, (CWM) Technology Package and (Z6A) Gooseneck / 5th Wheel Prep Package *GROSS* High Country Deluxe Safety Package II Forward Collision Alert1 Lane Departure Warning1 Automatic Emergency Braking1 IntelliBeam (high beam assist) Following Distance Indicator1 Safety Alert Seat1 Technology Package HD Surround Vision1 with Two Trailer View Camera Provisions Rear Camera Mirror1 15" diagonal Head-Up display Bed View Camera1 Gooseneck / 5th Wheel Package Hitch platform with tray to accept ball and stamped bed holes with caps installed Bed-mounted 7-pin trailer harness May require additional optional equipment

High Country Preferred Equipment Group

includes standard equipment

LPO, Dark Essentials Package


includes (RIK) Black Silverado nameplates, along with where applicable, Black LT/LTZ/High Country badges, LPO, (SFZ) Black bowtie, LPO and (SB7) Black tailgate CHEVROLET lettering, LPO, (dealer-installed) (Not available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine. When (QK2) Multi-Flex tailgate is ordered (SB7) Black tailgate lettering is replaced with tailgate Black bowtie.) Dark Essentials Package Black Silverado 3500 HD and trim nameplates Front Black bowtie Black tailgate decal lettering (replaced with Black bowtie when Multi-Flex tailgate is ordered)

LPO, Hitch Package


Gooseneck ball and chain tiedown kit with case, (dealer-installed) (Requires (Z6A) Gooseneck / 5th Wheel Prep Package.) Gooseneck Hitch Package Gooseneck ball Chain tiedown kit with case May require additional optional equipment

LPO, Interior Convenience Package


includes (S0P) Console insert organizer tray, LPO, (VBJ) Rear under-seat storage, LPO and (RIA) All-weather floor liners, LPO, (dealer-installed) (Not available with (Z71) Z71 Off-Road Package.) Interior Convenience Package Console insert organizer tray Rear under-seat storage All-weather floor liners May require additional optional equipment

Safety Package II


includes (UEU) Forward Collision Alert, (UFL) Lane Departure Warning, (UHY) Automatic Emergency Braking, (TQ5) IntelliBeam headlamps and (UE4) Following Distance Indicator (Included with (PDM) High Country Deluxe. Includes (HS1) Safety Alert Seat.) Safety Package II Forward Collision Alert1 Lane Departure Warning1 Automatic Emergency Braking1 IntelliBeam (high beam assist) Following Distance Indicator1 Safety Alert Seat1 Limited Availability-Currently Not Orderable on LTZ May require additional optional equipment

Snow Plow Prep/Camper Package


includes (KW5) 220-amp alternator, includes increased front GAWR on Heavy Duty models, (NZZ) skid plates (transfer case and oil pan), pass through dash grommet hole and roof emergency light provisions. Contact GM Upfitter Integration at www.gmupfitter.com for plow installation details and assistance. Note: if ordered for Camper usage, recommend ordering (UY2) Trailering wiring provisions (Single rear wheel models require (Z71) Z71 Off-Road Package. Upgradeable to (KHF) Dual alternators (220-amp primary, 170-amp auxiliary). Not available with (F60) Heavy Duty Front Spring/Camper Package.) Snow Plow Prep / Camper Package Power feed to accommodate a backup and roof emergency light1 A single 220-amp alternator Heavy-duty front springs Under body skid plates to help protect the transfer case from debris May require additional optional equipment

Technology Package


includes (DRZ) Rear Camera Mirror and (UV6) 15" Diagonal Head-Up Display (Requires (PDJ) Safety Package II.) Technology Package Rear Camera Mirror1 Multi-color 15" Diagonal Head-Up Display 8" diagonal Digital Driver Information Center on LTZ models May require additional optional equipment

Z71 Off-Road Package


includes (Z71) Off-Road suspension with off-road tuned twin tube Rancho shocks, (JHD) Hill Descent Control and (NZZ) skid plates (transfer case and oil pan) (Requires 4WD model. (Requires 4WD model. Not available with dual rear wheels.) Z71 Off-Road Package Z71 Off-Road suspension with Rancho™ twin tube shocks Hill Descent Control Skid plates Z71 hard badge (Work Truck, LT and LTZ models) Z71 grille emblem (LT and LTZ models)


Safety Features

  • Back-Up Camera
  • Cross-Traffic Alert
  • Rear Parking Aid
  • Blind Spot Monitor
  • Lane Departure Warning
  • Lane Keeping Assist
    Not Available
  • ABS
  • Night Vision
    Not Available
  • Tire Pressure Monitor
  • Brake Assist
    Not Available
  • Stability Control
  • Traction Control


  • Driver Air Bag
  • Front Head Air Bag
  • Front Side Air Bag
  • Knee Air Bag
    Not Available
  • Passenger Air Bag
  • Rear Head Air Bag
  • Rear Side Air Bag
    Not Available
  • Seatbelt Air Bag
    Not Available


Warranty Summary

  • Basic
    3 Years / 36,000 Miles
  • Corrosion
    3 Years / 36,000 Miles
  • Drivetrain Note
    HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
  • Drivetrain
    5 Years / 60,000 Miles
  • Maintenance Note
    1 Year/1 Visit
  • Roadside Assistance Note
    HD Duramax Diesel: 5 Years/100,000 Miles; Qualified Fleet Purchases: 5 Years/100,000 Miles
  • Roadside Assistance
    5 Years / 60,000 Miles
  • Rust-Through
    6 Years / 100,000 Miles
  • Warranty Note
    Preliminary 2023 Warranty
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