2021 GMC Sierra 1500 SLT Features & Specs

Starting MSRP

Engine TypeGas
Transmission10-speed shiftable automatic
Drive TypeFour wheel drive
Combined MPG19
Total Seating6
Basic Warranty3 yr./ 36000 mi.
Starting MSRP

on demand 4WDyes
automatic locking hubsyes
Transmission10-speed shiftable automatic
Drive typeFour wheel drive
Rear locking differentialyes
electronic single-speedyes
Fuel & MPG
Starting MSRP

EPA mileage est. (cty/hwy)16/22 mpg
Range in miles (cty/hwy)384.0/528.0 mi.
Fuel tank capacity24.0 gal.
Combined MPG19
Fuel typeRegular unleaded
Starting MSRP

cylinder deactivationyes
Torque383 lb-ft @ 4100 rpm
Base engine size5.3 l
Horsepower355 hp @ 5600 rpm
Turning circle49.5 ft.
direct injectionyes
Base engine typeGas
Valve timingVariable
Cam typeOverhead valves (ohv)
Starting MSRP

2 rear headrestsyes
Rear door child safety locksyes
daytime running lightsyes
engine immobilizeryes
dual front side-mounted airbagsyes
stability controlyes
Passenger airbag occupant sensing deactivationyes
Rear height adjustable headrestsyes
remote anti-theft alarm systemyes
2 front headrestsyes
auto delay off headlampsyes
tire pressure monitoringyes
traction controlyes
4-wheel ABSyes
front fog/driving lightsyes
Rear center 3-point beltyes
post-collision safety systemyes
child seat anchorsyes
front and rear head airbagsyes
Emergency braking assistyes
Front and rear ventilated disc brakesyes
dusk sensing headlampsyes
LED headlampyes
Front center 3-point beltyes
Starting MSRP

GMC Protection Packageyes
SLT Premium Plus Packageyes
Cargo Convenience Packageyes
Snow Plow Prep Packageyes
Texas Edition SLT Premium Plus Packageyes
SLT Premium Packageyes
Texas Edition SLT Premium Packageyes
AcknowledgementCwm technology package requires trailering mirrors
Max Trailering Packageyes
Performance Upgrade Packageyes
X31 Off-Road and Protection Packageyes
X31 Off-Road Packageyes
Technology Packageyes
SLT Preferred Packageyes
SLT Convenience Packageyes
In-Car Entertainment
Starting MSRP

memory card slotyes
AM/FM stereoyes
speed sensitive volume controlyes
auxiliary audio input and USB with external media controlyes
satellite radio satellite radioyes
USB connectionyes
6 total speakersyes
Comfort & Convenience
Starting MSRP

Audio and cruise controls on steering wheelyes
front seatback storageyes
cruise controlyes
leather steering wheelyes
keyless ignitionyes
Dual illuminating vanity mirrorsyes
Sun sensoryes
front and rear cupholdersyes
electrochromatic inside rearview mirroryes
front and rear door pocketsyes
electric power steeringyes
rear view camerayes
tilt and telescopic steering wheelyes
Dual zone front climate controlyes
heated steering wheelyes
Power Feature
Starting MSRP

hands-free entryyes
4 one-touch power windowsyes
Heated mirrorsyes
Interior Options
Starting MSRP

Premium Front Floor Linersyes
Rear Under Seat Storageyes
Lockable Console Vaultyes
Console Insert Organizer Trayyes
All-Weather Floor Lineryes
Starting MSRP

external temperature displayyes
trip computeryes
Front Seats
Starting MSRP

height adjustable passenger seatyes
multi-level heating driver seatyes
Front leg room44.5 in.
Front head room43.0 in.
8 -way power passenger seatyes
height adjustable driver seatyes
multi-level heating passenger seatyes
Driver seat with power adjustable lumbar supportyes
Front shoulder room66.0 in.
40-20-40 split bench front seatsyes
8 -way power driver seatyes
Passenger seat with power adjustable lumbar supportyes
Front hip room61.2 in.
Rear Seats
Starting MSRP

Rear head room40.1 in.
Rear hip Room60.2 in.
Rear leg room43.4 in.
Rear shoulder room65.2 in.
rear ventilation ductsyes
Split-folding rear seatbackyes
folding center armrestyes
Exterior Options
Starting MSRP

22" High Gloss Black Wheelsyes
Black Front and Rear Molded Splash Guardsyes
Spray-On Bed Lineryes
GMC MultiPro Tailgate Step Lightsyes
22" Bright Chrome Wheelsyes
275/60R20SL All-Terrain Blackwall Tiresyes
275/50R22SL All-Season Blackwall Tiresyes
Front License Plate Kityes
Cargo Tie-Downsyes
Power Glass Sunroofyes
20" x 9.0" Polished Aluminum Wheelsyes
265/65R18SL All-Terrain Blackwall Tiresyes
22" 6-Spoke Low-Gloss Black Wheels w/Machined Accentsyes
Bedside Storage Boxesyes
22" Multi-Spoke Polished Wheelsyes
275/60R20 All-Season Blackwall Tiresyes
22" Black Gloss Wheels w/Chrome Accentsyes
22" Carbon Flash Metallic Wheelsyes
Outside Power-Adjustable Vertical Trailering Mirrorsyes
Tri-Fold Hard Tonneau Coveryes
Tri-fold Soft Tonneau Coveryes
Chrome Assist Stepsyes
Wheel Locksyes
Body Color Wheel Arch Moldingsyes
MultiPro Audio System by Kickeryes
22" 5-Spoke Dark Silver Aluminum Wheels w/Machined Accentsyes
Auxiliary Trailer Camerayes
22" Polished Aluminum Wheelsyes
Starting MSRP

Length241.3 in.
Maximum towing capacity11800 lbs.
Curb weight5080 lbs.
Gross weight7000 lbs.
Ground clearance8.0 in.
Height75.4 in.
Maximum payload1980 lbs.
Wheel base157.0 in.
Width81.2 in.
Starting MSRP

Exterior Colors
  • Brownstone Metallic
  • Ebony Twilight Metallic
  • Cayenne Red Tintcoat
  • Pacific Blue Metallic
  • Satin Steel Metallic
  • Quicksilver Metallic
  • Dark Sky Metallic
  • White Frost Tricoat
  • Cardinal Red
  • Summit White
  • Onyx Black
Interior Colors
  • Jet Black, leather
  • Dark Walnut/Slate, leather
Tires & Wheels
Starting MSRP

265/65R18 tiresyes
20 x 9.0 in. wheelsyes
All season tiresyes
fullsize non-matching spare tireyes
underbody mounted spare tireyes
painted alloy wheelsyes
Starting MSRP

Stabilizer bar stabilizer baryes
front independent suspensionyes
Starting MSRP

Free Maintenance1 yr./ unlimited mi.
Basic3 yr./ 36000 mi.
Drivetrain5 yr./ 60000 mi.
Rust6 yr./ 100000 mi.
Roadside5 yr./ 60000 mi.