2021 Chevrolet Silverado 1500 Custom Trail Boss Specs

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Chevrolet Silverado 1500
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Identifiable by its mesh grille with high-gloss black bar and 18-inch black-painted alloy wheels, the Custom Trail Boss is the first off-road-purposed model in the line. It comes equipped with the contents of the Z71 off-road package, as well as an autotrac two-speed transfer case and a heavy-duty automatic locking rear differential. The Custom Trail Boss also comes equipped with the 4WD system as standard. 

Select configuration:
Starting Price (MSRP)
4.3L V6 Gas
6-Speed Automatic
Four-Wheel Drive
Body Type
Seating capacity
6 seater
Trunk Volume
Fuel Economy
City: 14 MPG
Hwy: 18 MPG

Performance Specs

Engine and Transmission

  • Engine
    4.3L V6 Gas
    5.3L EcoTec3 V8 (+$1,395)
    6.2L EcoTec3 V8 (+$2,495)
  • Horsepower
    285 hp @ 5300 rpm
  • Torque
    305 lb-ft @ 3900 rpm
  • Transmission
    6-Speed Automatic
    10-Speed Automatic (Optional)
  • Drivetrain
    Four-Wheel Drive


  • Steering Type
    Electric Rack & Pinion
  • Turning Diameter
    46.3 ft


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


  • Front Tire
  • Rear Tire
  • Spare Tire

Fuel and MPG

Fuel Economy

  • Combined
    16 MPG
  • City
    14 MPG
  • Highway
    18 MPG

Fuel Tank

  • Fuel Tank Capacity
    24 gallons
  • Cruising Range City
    336 miles
  • Cruising Range Highway
    432 miles


  • CO2 Emissions @ 15K mi/year
    11.2 Tons/yr

Dimensions and Measurement

Exterior Dimensions

  • Length
    231.7 in
  • Height
    78.45 in
  • Max Width
    81.24 in
  • Wheelbase
    147.5 in

Interior Space

  • Seating Capacity
    6 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
    35.24 in
  • Rear Seat Headroom
    39.88 in
  • Rear Seat Shoulder Room
    64.88 in
  • Rear Seat Hip Room
    60.24 in

Weight and Towing

  • Maximum Towing Capacity
    9,400 lbs

Cargo Box Dimensions

  • Box Length (Floor)
    79.44 in
  • Box Width (Floor)
    71.4 in
  • Box Width (Wheelhousings)
    50.63 in
  • Box Height (Area)
    22.4 in
  • Cargo Volume
    71.7 ft³

Colors and Materials

Standard Interior Materials

  • Jet Black, Cloth seat trim

Features and Options


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

Interior Trim

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


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

Additional Packages

Custom Trail Boss Preferred Equipment Group

includes standard equipment

LPO, Assist Step and Tonneau Value Package II


includes your choice of (VXJ) Chrome 4" round assist steps, LPO (available on 1CX/1LT/1SP/1LZ) or (RVS) Black 4" round assist steps, LPO (available on 1CX/2CX/1SP/2LT) and (63B) Tri-fold soft tonneau cover, LPO (dealer-installed) (Not available with any other assist steps or tonneau covers.) Assist Step and Tonneau Value Package II Tri-fold soft tonneau cover Your choice of Chrome 4" round assist steps (available on Custom, LT, RST or LTZ) or Black 4" round assist steps (available on Custom, Custom Trail Boss, RST or LT Trail Boss)

LPO, Dark Essentials Package


includes (RIK) Black Silverado nameplates, along with where applicable, Black Custom/LT/RST/LTZ/High Country/6.2L/Duramax badges, LPO and (SB7) Black tailgate CHEVROLET lettering, LPO, (dealer-installed) (When (QK2) Multi-Flex tailgate is ordered (SB7) Black tailgate lettering is not included and replaced by factory tailgate Black bowtie.) Dark Essentials Package Black Silverado and trim nameplates Front Black bowtie Black tailgate decal lettering (replaced with Black bowtie when Multi-Flex tailgate is ordered) Black engine badges when ordered with 6.2L EcoTec3 V8 engine or Duramax 3.0L Turbo-Diesel I6 engine

LPO, Performance Upgrade Package


includes (5W7) Performance Air Intake System, LPO and (WBC) Cat-Back Performance Exhaust, LPO, (dealer-installed) (No longer available to order. Requires (L87) 6.2L EcoTec3 V8 engine.) Performance Upgrade Package Performance Air Intake System Cat-Back Performance Exhaust May require additional optional equipment

Midnight Edition


includes Black Silverado badging, Black trim level badging and Black dual exhaust tips (Requires (GBA) Black exterior color and (L82) 5.3L EcoTec3 V8 engine. Includes (CGN) Chevytec spray-on bedliner, (S0T) Silver-Hammer interior trim, LPO and (AAK) all-weather floor liners, LPO. (L82) 5.3L EcoTec3 V8 engine may be upgraded to (L87) 6.2L EcoTec3 V8 engine and includes Black hood badging. (RD1) 18" High gloss Black painted aluminum wheels and (R3O) LT275/65R18 Goodyear Wrangler DuraTrac tires may be upgraded to (RD5) 20" High gloss Black painted aluminum wheels and (QFV) LT265/60R20 MT blackwall Goodyear Wrangler Territory tires. (AAK) All-weather Z71 floor liners, LPO may be upgraded to (BKF) Floor liners. Not available with (PDB) Dark Essentials Package, LPO or any other assist steps.) Midnight Edition Midnight Edition (Custom Trail Boss) Black Silverado badging Black trim level badging Black dual exhaust tips Chevytec spray-on bedliner Silver-Hammer interior trim All-weather floor liners with Z71 logo Midnight Edition (LT Trail Boss) Black Silverado badging Black trim level badging Black dual exhaust tips Bed Protection Package (includes Chevytec spray-on bedliner and rear wheelhouse liners) High-intensity LED reflector headlamps with dark bezel May require additional optional equipment

Safety Confidence Package


includes (UEU) Forward Collision Alert, (UHY) Automatic Emergency Braking, (UKJ) Front Pedestrian Braking, (UK3) Steering Wheel Audio Controls and (UDD) Driver Information Center Safety Confidence Package Forward Collision Alert1 Automatic Emergency Braking1 Front Pedestrian Braking1 Steering wheel audio controls 4.2" diagonal color Driver Information Center Work Truck models also include Cruise Control Cruise control standard on Custom and Custom Trail Boss trim levels


Safety Features

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

US NHTSA Crash Test Result

  • Overall Rating
  • Frontal Barrier Crash Rating
  • Side Crash Rating
  • Rollover Rating


  • 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 2021 Warranty
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