2021 Chevrolet Silverado 1500 Custom Trail Boss in Alliston, ON

2021 Chevrolet Silverado 1500 Custom Trail Boss at Ernie Dean

Conquering city streets and off-road trails never looked so good than in the aptly named 2021 Chevrolet Silverado 1500 Custom Trail Boss. This Silverado 1500 trim is loaded with features primed for excelling over rough terrain, as well as many tech systems and packages that make life in your truck even easier, from trailering to smartphone connectivity. The biggest highlight of the Custom Trail Boss is the 2-inch factory lift as part of the Z71 suspension, which features Rancho monotube shocks, increased ground clearance and better approach and departure angles. Ernie Dean is Truckville, which means from education to sales and service, if it involves a GM truck, we’re your ultimate Ontario destination. Explore more about the 2021 Custom Trail Boss as a top trim of the 2021 Chevrolet Silverado, starting at an excellent price and for sale here in Alliston!

Explore our other 2021 Chevrolet Silverado 1500 trim pages: LT Trail Boss

Interested in other Chevrolet truck models? Browse the 2021 Chevrolet Colorado

Check out a comparison of all of the 2021 Chevrolet Silverado 1500 trims and packages!

Exterior Design & Features

18-inch High Gloss Black-painted Aluminum Wheels

Framing the 2021 Silverado 1500 Custom Trail Boss is a bold set of 18-inch high gloss black-painted aluminum wheels. The beauty of these wheels is that they seamlessly transition from a capable look that fits in on city streets to their rugged qualities that allow them to excel on country roads.

Lighting Features

Shining forward are the headlights, along with a halogen reflector and halogen daytime running lights. LED tail lights find their home at the rear of the pickup, coupled with LED stop lights and an incandescent reverse light. For loading and unloading in the dark, the cargo bed LED lights provide bright illumination.

Stylish & Functional Bumpers

The front and rear bumpers are body-colour-matched to provide a seamless look on the Custom Trail Boss. Its high-gloss black colour is both bold and sporty. The CornerStep rear bumper makes it easy to hop up in the bed, conveniently located on both sides of the bumper.

Dimensions:Silverado 1500 Custom Trail Boss (Crew Cab, Short Bed)Silverado 1500 Custom Trail Boss (Crew Cab, Standard Bed)
Length (mm/in)5,885 / 231.76,127 / 241.2
Width (without mirrors) (mm/in)2,063 / 81.22,063 / 81.2
Height (mm/in)1,990 / 78.41,987 / 78.2
Wheelbase (mm/in)3,747 / 147.53,989 / 157.1
Cargo Box Length (on floor) (mm/in)1,776 / 69.92,018 / 79.4
Cargo Box Length (on floor) (mm/in)1,776 / 69.92,018 / 79.4
Cargo Box Width (on floor) (mm/in)1,814 / 71.41,814 / 71.4
Ground Clearance (mm/in)276 / 10.9272 / 10.7
Cargo Volume (L)1,7812,030
Curb Weight (kg/lbs)2,184 / 4,8152,208 / 4,867

Interior Design & Tech


The 40/20/40 split-bench front seat provides ample room for up to 3, with seats trimmed in cloth for a comfortable ride both in the city and off-road. For the rear passengers is a 60/40 split-fold rear bench seat, where you can either fold one side up or both, and comes finished off with a child seat top tether anchor.

Chevrolet Infotainment 3

A 7-inch colour touchscreen is found on the Custom Trail Boss, your connected media hub for access to your Silverado’s modern tech systems. Utilize Apple CarPlay or Android Auto to connect your compatible phone, along with Bluetooth audio streaming.

Remote Keyless Entry & Start

Remote keyless entry allows you to get in and go in a flash, while remote start has you primed to enjoy a warm or cool vehicle depending on the season. Locking/unlocking, start and climate control are all at your disposal just from the buttons on your key fob.

Dimensions:Silverado 1500 Custom Trail Boss Crew Cab
Front Headroom (mm/in)1,093 / 43.0
Rear Headroom (mm/in)1,019 / 40.1
Front Legroom (mm/in)1,131 / 44.5
Rear Legroom (mm/in)1,102 / 43.4
Front Shoulder Room (mm/in)1,677 / 66.0
Rear Shoulder Room (mm/in)1,655 / 65.2
Front Hip Room (mm/in)1,554 / 61.2
Rear Hip Room (mm/in)1,530 / 60.2
Passenger Capacity6

Performance & Capability


A 4.3L EcoTec3 V6 engine comes standard, outfitted with a 6-speed automatic transmission, and reaching heights of 285 horsepower and 305 lb-ft of torque. Additional available engines include the 5.3L EcoTec3 V8 and 6.2L EcoTec3 V8 for high levels of power.


Haul knowing you have one of the most durable and dependable truck beds on the market. The Durabed in the Silverado Custom Trail Boss is made from roll-formed high-strength steel, taking on your cargo no matter the shape, size or material.

Hill Descent Control

Driving down a hill can always be a bit tenuous, but doing so behind the wheel of a 2021 Silverado Custom Trail Boss makes it a breeze. The antilock braking allows for a smooth and seamless descent, keeping you in control at all times, without having to depress the brake pedal. All it takes is activation of the Hill Descent Control button on the instrument panel to begin.

Specifications:4.3L EcoTec3 V65.3L EcoTec3 V86.2L EcoTec3 V8
Transmission6-speed automatic6-speed automatic10-speed automatic
Torque (lb-ft)305383460


Trailering Package

A wide selection of packages come standard on the 2021 Custom Trail Boss Silverado, highlighted by the Trailering package. Included is a trailer hitch, trailering hitch platform, 2-inch receiver hitch with 4-pin and 7-pin connectors, 7-wire electrical harness, 7-pin sealed connector and Hitch Guidance.

Z71 Suspension

Get ready for off-road travel thanks to the Z71 Suspension package, which comes complete with a 2-inch factory lift. Additional features include Rancho monotube shocks, additional ground clearance and upgraded approach/departure angles.

Custom Convenience Package

Make life in your Custom Trail Boss a little easier with the help of the Custom Convenience package. Featured within is remote start, a content theft alarm, rear-window defogger, LED cargo bed lighting and an EZ lift power lock/release gate.

Infotainment Package

Included in the infotainment package is SiriusXM on a trial subscription, alongside capability for both OnStar and Chevrolet Connected services.



The stability control system comes with Proactive Roll Avoidance and traction control, ensuring no matter the situation you and your Custom Trail Boss find yourself in, you’ll always be in control. Also included is the trailer sway control and hill start assist, so from towing to hill travel, you’ll be safe and well taken care of.

Rear Vision Camera

Even those of us who’ve been driving pickups for decades could always use a little bit of help when parking or backing up to a trailer. The rear vision camera provides an image of what’s directly behind your truck when reversing, complete with dynamic guidelines so you can perfectly line everything up.

6 Airbag System

A 6 airbag system takes care of all of the traditional safety elements you expect out of your pickup, with strategically-placed airbags that provide all-encompassing protection.

  • Dual-stage front airbags for driver and passenger
  • Seat-mounted side-impact airbags for driver and passenger
  • Head-curtain airbags for outboard seats

2021 Silverado 1500 Custom Trail Boss Trim

Front side view of 2021 Chevrolet Silverado 1500 Custom Trail Boss

Custom Trail Boss

Starting at $48,948*

Highlighted features:

  • 2-inch factory suspension lift (with Z71 Off-Road package)
  • Auto Locking Rear Differential
  • 18-inch gloss black-painted aluminum wheels
  • Goodyear Wrangler DuraTrac mud-terrain tires
  • Custom Convenience package
  • Infotainment package
  • Trailering package
View Custom Trail Boss Inventory

*Crew Cab, Standard Bed 4WD base price before freight, not including increases

Come down to Truckville at Ernie Dean and explore our Chevrolet and GMC pickups! We’re a friendly environment where you can learn more about trucks, shop our new and used inventory, browse parts/accessories and get top-of-the-line service. If you have any questions about this Silverado Custom Trail Boss, or anything else we carry, we’re more than happy to chat!

Want to continue your truck research? Check out these pages:

2021 GMC Sierra 1500

2021 GMC Sierra 1500 Denali

2021 GMC Canyon


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