Terry Thompson Chevrolet · Daphne, AL

2021 GMC Sierra 1500 SLT

150,670 miles · truck

1 / 17 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2021

MakeGMC

ModelSierra 1500

TrimSLT

VIN3GTU9DED3MG450401

Stock number450401T

Mileage150,670 miles

BodyPickup

Engine5.3L 8-cyl

Cylinders8

Displacement5.3L

Horsepower355

TransmissionAutomatic

Drivetrain4WD

FuelGasoline

MPG14 city / 20 hwy

ExteriorBrownstone Metallic

InteriorDARK WALNUT/SLATE, PERFORATED LEATHER-APPOINTED FR

Doors4

Seats6

Vehicle description

This 2021 GMC Sierra 1500 SLT delivers commanding presence and capability with its EcoTec3 5.3L V8 engine paired with an 8-speed automatic transmission and 4WD. With 14 city and 20 highway MPG, this Brownstone Metallic truck balances power with efficiency. The SLT trim offers premium features and purposeful engineering designed for both work and weekend adventures. - Chrome wheel-to-wheel assist steps - X31 Off-Road & Protection Package with Hill Descent Control - 10-way power driver seat with lumbar support - Heated leather-appointed front seats - GMC Infotainment System with Apple CarPlay and Android Auto - SiriusXM 360L satellite radio with 6-speaker premium audio - Remote Vehicle Starter System with keyless open and start - ProGrade Trailering System with integrated trailer brake controller - Spray-on pickup bed liner with GMC logo - All-weather floor liners This Sierra is equipped with modern safety technology including electronic stability control, traction control, brake assist, and a full suite of airbags. The interior features dual-zone automatic climate control, a heated steering wheel, and memory driver seat settings. A 4G LTE Wi-Fi hotspot and OnStar connectivity keep you connected on the go. Whether you're hauling, towing, or simply enjoying the open road, this Sierra 1500 SLT combines rugged capability with refined comfort. Visit us today to experience this impressive truck firsthand.

Features & options (254)

3-point seatbelt : Rear seat center 3-point seatbelt
ABS Brakes : 4-wheel antilock (ABS) brakes
Auto headlights : Auto on/off headlight control
Brake assist system : Brake assist system
Brake type : 4-wheel disc brakes
Cab mounted cargo light : Cab mounted cargo light
Child door locks : Manual rear child safety door locks
Delay off headlights : Delay-off headlights
Electronic stability control : StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
Fog lights : LED front fog lights
Front impact airbag driver : Driver front impact airbag
Front impact airbag passenger : Passenger front impact airbag
Front side impact airbag driver : Seat mounted side impact driver airbag
Front side impact airbag passenger : Seat mounted side impact front passenger airbag
Headlight type : Reflector headlights
Headlights : LED low and high beam headlights
High mount stop light : High mounted center stop light
Hill control : Hill Descent Control (HDC)
Hill start assist : Hill Start Assist (HSA)
Illuminated entry : Illuminated entry
Immobilizer : Immobilizer
Instrumentation display : Analog instrumentation display
LED brake lights : LED brake lights
Low tire pressure warning : Tire specific low air pressure warning
Multiple headlights : Multiple enclosed headlights
Number of airbags : 6 airbags
Occupancy sensor : Airbag occupancy sensor
Overhead airbags : Curtain first and second-row overhead airbags
Perimeter approach lighting : Remote activated perimeter approach lighting
Rear camera : HD Rear Vision Camera w/Hitch View rear mounted camera
Remote panic alarm : Remote panic alarm
Restricted driving mode/alerts : Teen Driver restricted driving mode/alerts
Running lights : LED daytime running lights
Seatbelt pretensioners : Front seatbelt pretensioners
Seatbelt pretensioners number : 2 seatbelt pre-tensioners
Security system : Security system
Air conditioning : Yes
Armrests front center : Front seat center armrest
Armrests front storage : Front seat armrest storage
Armrests rear : Rear seat center armrest
Cabback insulator : Cabback insulator
Climate control : Automatic climate control
Door panel insert : Simulated wood and metal-look door panel insert
Door trim insert : Vinyl door trim insert
Driver lumbar : Driver seat with 2-way power lumbar
Driver seat direction : Driver seat with 8-way directional controls
Dual-zone front climate control : Dual-zone front climate control
Floor coverage : Full floor coverage
Floor covering : Full carpet floor covering
Floor mats : Rubber front and rear floor mats
Folding rear seats : 60-40 folding rear seats
Front head restraint control : Manual front seat head restraint control
Front head restraints : Height adjustable front seat head restraints
Front passenger lumbar : Front passenger seat with 2-way power lumbar
Front seat type : Split-bench front seat
Front seat upholstery : Leather front seat upholstery
Front seatback upholstery : Plastic front seatback upholstery
Gearshifter material : Urethane gear shifter material
Headliner coverage : Full headliner coverage
Headliner material : Cloth headliner material
Heated front seats : Heated driver and front passenger seats
Heated steering wheel : Heated steering wheel
Interior accents : Chrome interior accents
Number of memory settings : 2 memory settings
Panel insert : Metal-look instrument panel insert
Passenger seat direction : Front passenger seat with 8-way directional controls
Power driver seat controls : Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
Power passenger seat controls : Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
Rear console climate control ducts : Rear console climate control ducts
Rear head restraint control : 2 rear seat head restraints
Rear head restraint control : Manual rear seat head restraint control
Rear head restraints : Height adjustable rear seat head restraints
Rear seat folding position : Fold-up rear seat cushion
Rear seat upholstery : Vinyl rear seat upholstery
Rear seatback upholstery : Carpet rear seatback upholstery
Rear seats : Split-bench rear seat
Rear seats fixed or removable : Fixed rear seats
Seating capacity : 6
Split front seats : 40-20-40 split-bench front seat
Steering wheel material : Leather steering wheel
Steering wheel telescopic : Manual telescopic steering wheel
Steering wheel tilt : Manual tilting steering wheel
Tinted windows : Deep tinted windows
12V power outlets : 2 12V power outlets
Accessory power : Retained accessory power
All-in-one key : All-in-one remote fob and ignition key
Auto door locks : Auto-locking doors
Auto-dimming door mirror driver : Auto-dimming driver side mirror
Battery charge warning : Battery charge warning
Beverage holders : Front beverage holders
Beverage holders rear : Rear beverage holders
Brake pad warning : Brake pad wear indicator
Capless fuel filler : Capless fuel filler
Clock : Digital clock
Compass : Compass
Cruise control : Cruise control with steering wheel mounted controls
Day/Night rearview mirror : Day/Night rearview mirror
Door ajar warning : Door ajar warning
Door bins front : Driver and passenger door bins
Door bins rear : Rear door bins
Door locks : Power door locks with 2 stage unlocking
Door mirror with tilt-down in reverse : Power driver and passenger door mirrors with tilt down in reverse
Driver foot rest : Driver foot rest
Driver information center : Driver information center
Easy lift tailgate : EZ Lift
Easy lower tailgate : EZ Lower
Engine hour meter : Engine hour meter
Engine temperature warning : Engine temperature warning
Engine/electric motor temperature gauge : Engine/electric motor temperature gauge
Exterior 120V AC power outlet : 1 exterior 120V AC power outlet
First-row windows : Power first-row windows
Fob engine controls : Smart key with hands-free access and push button start
Folding door mirrors : Power folding door mirrors
Front reading lights : Front reading lights
Glove box : Locking glove box
Headlights on reminder : Headlights on reminder
Heated door mirrors : Heated driver and passenger side door mirrors
Ignition type : Push-button
Inclinometer : Inclinometer
Integrated tailgate step : Integrated tailgate step
Interior 120V AC power outlets : 1 interior 120V AC power outlet
Key in vehicle warning : Key in vehicle warning
Keyfob cargo controls : Keyfob trunk control
Keyfob keyless entry : Keyfob keyless entry
Keyfob remote start : Keyfob remote start
Keyfob window controls : Keyfob window control
Low level warnings : Low level warning for oil, coolant, fuel, washer fluid and brake fluid
Memory settings : Memory settings include: door mirrors
Number of beverage holders : 6 beverage holders
Oil pressure gauge : Oil pressure gauge
Oil pressure warning : Oil pressure warning
One-touch down window : Front and rear one-touch down windows
One-touch up window : Driver and passenger one-touch up windows
Overhead console : Mini overhead console
Overhead console storage : Overhead console storage
Passenger doors rear left : Conventional left rear passenger door
Passenger doors rear right : Conventional right rear passenger door
Rear cargo door : MultiPro Tailgate tailgate
Rear reading lights : Rear reading lights
Rear seat check warning : Rear seat check warning
Rear seat direction : Front facing rear seat
Rear window defroster : Rear window defroster
Rear windshield : Fixed rear windshield
Rearview mirror : Auto-dimming rear view mirror
Seatback storage pockets : 2 seatback storage pockets
Second-row windows : Power second-row windows
Service interval warning : Service interval indicator
Speedometer : Redundant digital speedometer
Steering mounted audio control : Steering wheel mounted audio controls
Tachometer : Tachometer
Tailgate control : Tailgate/power door lock
Temperature display : Exterior temperature display
Tire pressure : Tire Fill Alert tire pressure fill assist
Transmission fluid temperature warning : Transmission fluid temp warning
Transmission temperature gauge : Transmission fluid temperature gauge
Trip computer : Trip computer
Trip odometer : Trip odometer
Turn signal warning : Turn signal on warning
Under seat tray front : Locking front under seat tray
Under seat tray rear : Rear under seat tray
Variable panel light : Variable instrument panel light
Visor driver mirror : Driver visor mirror
Visor illuminated driver mirror : Illuminated driver visor mirror
Visor illuminated passenger mirror : Illuminated passenger visor mirror
Visor passenger mirror : Passenger visor mirror
Voltmeter : Voltmeter
Wipers : Variable intermittent front windshield wipers
Bed extender : Pickup bed extender
Bed liner : Spray-in pickup bed liner
Bed-rail protectors : Pickup bed-rail protectors
Body panels : Galvanized steel/aluminum body panels with side impact beams
Box style : Standard style pickup box
Bumper rub strip front : Black front bumper rub strip
Bumpers front : Chrome front bumper
Bumpers rear : Chrome rear bumper
Door handle material : Chrome door handles
Door mirror style : Chrome door mirrors
Door mirror type : Standard style side mirrors
Fenders : Black fender flares
Grille style : Chrome grille
In-box lighting : LED in-box lighting
License plate front bracket : Front license plate bracket
Number of doors : 4 doors
Paint : Metallic paint
Rear bumper step : CornerStep rear bumper step
Running boards : Running boards
Skid plate : 2 underbody skid plates
Spare tire : Full-size spare tire with steel wheel
Spare tire location : Crank-down spare tire
Special paint : Monotone paint
Tow hooks front : 2 front tow hooks
Towing brake controller : Trailer brake controller
Towing class : Class IV tow rating
Towing hitch : Trailer hitch
Towing hitch light : Trailer hitch light
Towing trailer sway : Trailer Sway Control (TSC) trailer sway control
Towing wiring harness : Trailer wiring harness
Trailer light malfunction warning : GMC ProGrade Trailering System trailer light malfunction warning
Trailer light test : GMC ProGrade Trailering System trailer light test
Trailer theft alarm : GMC ProGrade Trailering System trailer theft alarm
Vehicle and trailer reverse assist : Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
Vehicle to trailer hitching assist : Hitch Guidance vehicle to trailer hitching assist
Window Trim : Chrome side window trim
Emissions : Federal emissions
Emissions tiers : Tier 2 Bin 5 emissions
Antenna : Fixed audio antenna
Aux input jack : Auxiliary input jack
External memory : Premium GMC Infotainment System external memory control
Internet radio capability : Internet radio capability
Number of first-row screens : 2 total number of 1st row displays
Primary display size : 8 inch primary display
Primary display touchscreen : Primary monitor touchscreen
RDS : Radio data system (RDS)
Radio : AM/FM/SiriusXMsatellite
Satellite trial : 3 month satellite trial subscription
Seek scan : Seek scan
Speakers : Standard grade speakers
Speakers number : 6 speakers
Voice activated audio : GMC Infotainment System voice activated audio controls
Wireless streaming : Bluetooth wireless audio streaming
4WD type : AutoTrac part and full-time 4WD
ABS Brakes : Four channel ABS brakes
Alternator Type : Alternator
Battery run down protection : Battery run down protection
Battery type : Heavy-duty lead acid battery
Cylinder head material : Aluminum cylinder head
Displacement liters : 5.3 L
Drive type : Four-wheel drive
Electronic parking brake : Electronic parking brake
Engine : EcoTec3 5.3L V-8 direct injection, variable valve control, regular gasoline, engine with 355HP
Engine Configuration : V8
Engine Location : Front mounted engine
Engine Mounting direction : Longitudinal mounted engine
Engine Short : EcoTec3 5.3L V-8
Engine block material : Aluminum engine block
Engine cooler : Engine oil cooler
Front anti-roll : Front anti-roll bar
Fuel Type : Regular unleaded
Horsepower : 355 HP @5600 RPM
Ignition : Spark ignition system
Lock-up transmission : Lock-up transmission
Locking hub control : Auto locking hub control
Overdrive transmission : Overdrive transmission
Powertrain type : ICE
Radiator : Radiator
Rear Springs : Regular grade rear springs
Rear locking differential : Automatic rear locking differential
Selectable mode transmission : Tow/Haul Mode selectable mode transmission
Sequential shift control : Sequential shift control
Shock absorbers : Gas-pressurized shock absorbers
Off-Road Suspension
Hill Descent Control
Skid Plates
Heavy-Duty Air Filter

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 100 miles of Daphne, Alabama

Asking price$26,397Dealer asking price · 150,670 mi

Market value$36,034Market value · based on 3 comparable cars

vs. market-26.7%Not rated · prices vary widely

Where this price sits

Among the lowest-priced · 100% of 3 similar listings ask more than this car.

Market value $36,034

This car$26,397

$26,397lowest$42,115highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Not rated · comparable prices vary too widely$9,637 below the market value of $36,034

Price range

$26,397$42,115

Lowest price of 4 similar listings within 100 milesTick marks the market value · range of 3 similar listings

AutosXchange Insights

Compared with 3 used 2020–2022 GMC Sierra 1500 SLT listings within 100 mi.
Priced $9,637 below the market value of 3 comparable cars.
Lowest price of 4 similar listings within 100 miles.
Has about 69,000 more miles than similar listings.
About 25,112 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 450401T — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 5, 2026. No price change at this dealership since Nov 5 ($26,397).

AutosXchange Intel Hub: Price changes for this model in Alabama · This model in the Intel Hub · Market movers in Alabama

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 13); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2020–2022 Sierra 1500 SLT · used · any miles · within 100 miles of Daphne, Alabama. All 3 comparable cars for sale, nearest first.

2020 GMC Sierra 1500 SLT for sale at Terry Thompson Chevrolet in Daphne, AL

Price drop −$620

29 photosCARFAX

2020 GMC Sierra 1500 SLT

$28,256~~$28,876~~est. $487/mo

$1,859 more than this car

141,337 mi
4WD
Automatic
Gasoline
Truck

Terry Thompson Chevrolet · Daphne, AL · 0 mi away

0 viewsStock # 117672T

Check availability Call

37 photosCARFAX

2020 GMC Sierra 1500 SLT

$36,034est. $620/mo

$9,637 more than this car

81,183 mi
4WD
10-Speed Automatic
Gasoline
Truck

Hill-Kelly Dodge · Pensacola, FL · 38 mi away

0 viewsStock # T766111

Check availability Call

2022 GMC Sierra 1500 SLT for sale at Gregg Orr Pre-Owned of Destin in Destin, FL

Price drop −$1,379

33 photosCARFAX

2022 GMC Sierra 1500 SLT

$42,115~~$43,494~~est. $725/mo

$15,718 more than this car

48,412 mi
4WD
10-Speed Automatic
Diesel
Truck

Gregg Orr Pre-Owned of Destin · Destin, FL · 84 mi away

0 viewsStock # A640277

Check availability Call

2020 GMC Sierra 1500 SLT141,337 miles · Terry Thompson Chevrolet · Daphne, AL · 0 mi away$28,256$1,859 more than this car

2020 GMC Sierra 1500 SLT81,183 miles · Hill-Kelly Dodge · Pensacola, FL · 38 mi away$36,034$9,637 more than this car

2022 GMC Sierra 1500 SLT48,412 miles · Gregg Orr Pre-Owned of Destin · Destin, FL · 84 mi away$42,115$15,718 more than this car

AutosXchange Intel uses current dealer-advertised asking prices, not completed sales or appraisals. It compares the same trim and condition (new or used) where at least three are listed nationwide, and adjusts the expected price for mileage; it is not adjusted for options, condition or accident history. Similar listings are searched within 50, 100 and 250 miles of the dealer first, then the dealer's state, then nationwide. The left gauge spans ±25% of the expected price. How AutosXchange price analysis works