Skip to main content
Photo of 2021 Onyx Black GMC Sierra 1500 Photo of 2021 Onyx Black GMC Sierra 1500 Photo of 2021 Onyx Black GMC Sierra 1500 Photo of 2021 Onyx Black GMC Sierra 1500 Photo of 2021 Onyx Black GMC Sierra 1500 Photo of 2021 Onyx Black GMC Sierra 1500
Photo of 2021 Onyx Black GMC Sierra 1500 Thumbnail of 2021 Onyx Black GMC Sierra 1500 Thumbnail of 2021 Onyx Black GMC Sierra 1500 Thumbnail of 2021 Onyx Black GMC Sierra 1500 Thumbnail of 2021 Onyx Black GMC Sierra 1500 Thumbnail of 2021 Onyx Black GMC Sierra 1500
Ad

Car shopper resources

Basics

Exterior color
Onyx Black
Interior color
Jet Black
Drivetrain
Four-wheel Drive
MPG
Fuel type
Gasoline
Transmission
10-Speed Automatic
Engine
6.2L V8 16V GDI OHV
VIN
3GTP9EEL0MG413767
Stock #
G27127A
Mileage
85,135 mi.

Features

Convenience
  • Cooled Seats
  • Heated Steering Wheel
  • Keyless Start
  • Remote Start
Entertainment
  • Apple CarPlay®
  • Bluetooth®
  • Premium Sound System
  • Satellite Radio
  • USB Port
Exterior
  • Alloy Wheels
  • Tow Hitch
Safety
  • Backup Camera
  • Brake Assist
  • Stability Control
Seating
  • Leather Seats
  • Memory Seat
Additional popular features:
Keyless Entry, LED Headlights, Navigation System, apple carplay/android auto, Heated Seats, parking distance sensors, Automatic Emergency Braking, Blind Spot Monitor, collision warning system, Rear Cross Traffic Alert, Lane Departure Warning, parking assistance, trailer assist
View all features

Features

These features are associated with this vehicle type. Contact the seller to confirm this specific vehicle has them.

  • 1st and 2nd row curtain head airbags
  • 4 Door
  • 4-Wheel Antilock
  • 4-Wheel Disc With Duralife Rotors
  • 4-wheel ABS Brakes
  • 6 USB ports
  • ABS and Driveline Traction Control
  • Anti-theft alarm system
  • Apple CarPlay/Android Auto mirroring
  • Audio System Premium Brand: GMC Infotainment System
  • Audio controls on steering wheel
  • Automatic front air conditioning
  • Automatic locking hubs
  • Bluetooth wireless phone connectivity
  • Body-colored bumpers
  • Brakes
  • Braking Assist
  • Bucket front seats
  • Capless Fuel Fill
  • Center Console: Full with covered storage
  • Chrome w/body-color surround grille
  • Climate Controlled : Driver and passenger heated
  • Clock : Digital
  • Coil front spring
  • Color-Keyed Carpeting
  • Compass
  • Cooled front seats
  • Cornerstep
  • Cruise control
  • Cruise controls on steering wheel
  • Cupholders: Front and rear
  • Daytime running lights
  • Diameter of tires: 18.0"
  • Digital Audio Input
  • Door pockets: Driver, passenger and rear
  • Door reinforcement: Side-impact door beam
  • Driver airbag
  • Driver seat memory
  • Driver's side electrochromatic auto-dimming mirrors
  • Dual front air conditioning zones
  • Dual illuminated vanity mirrors
  • Dual reverse tilt mirrors
  • Dusk sensing headlights
  • Electrochromatic rearview mirror
  • Engine immobilizer
  • External temperature display
  • Fixed antenna
  • Floor Covering
  • Floor mats: Rubber w/carpet inserts front and rear
  • Fold-up cushion rear seats
  • Front Head Room : 43.0 "
  • Front Hip Room: 61.2"
  • Front Independent Suspension
  • Front Leg Room: 44.5"
  • Front Shoulder Room: 66.0"
  • Front Stabilizer Bar : Bar
  • Front Ventilated disc brakes
  • Front and rear reading lights
  • Front fog/driving lights
  • Front suspension stabilizer bar
  • Fuel Capacity: 24.0 gal.
  • GMC Connected Access Capable (Subject To Terms. See Onstar.Com Or Dealer For…
  • Headlights off auto delay
  • Heated driver mirror
  • Heated passenger mirror
  • Heated steering wheel
  • High Gloss Black (Deleted With (Dqs) Outside Power Adjustable Vertical Trail…
  • Independent front suspension classification
  • Instrumentation: Low fuel level
  • Interior 120v Ac Power Outlet : 1
  • Keyless ignition w/ push button start & keyless door entry
  • LED Low/High Beam Reflector Headlights
  • Leaf rear spring
  • Leaf rear suspension
  • Leather seat upholstery
  • Leather-Wrapped
  • Leather/metal-look steering wheel trim
  • Left rear passenger door type: Conventional
  • Machined aluminum rims w/ painted accents
  • Manual Tilt-Wheel And Telescoping
  • Manual child safety locks
  • Memorized Settings for 2 drivers
  • Memorized Settings including door mirror(s)
  • Metal-look dash trim
  • Mirror Caps
  • Mobile hotspot internet access
  • Overall Width: 81.2"
  • Overhead console: Mini with storage
  • Passenger 10-Way Power Including Lumbar
  • Passenger Airbag
  • Power remote w/tilt down driver mirror adjustment
  • Power remote w/tilt down passenger mirror adjustment
  • Power retractable mirrors
  • Power windows
  • Premium GMC Infotainment System
  • Privacy glass: Deep
  • Radio Data System
  • Rear Bumper
  • Rear Head Room: 40.1"
  • Rear Hip Room: 60.2"
  • Rear Leg Room: 43.4"
  • Rear Shoulder Room: 65.2"
  • Rear View Camera
  • Rear center seatbelt: 3-point belt
  • Rear door type: Tailgate
  • Rear seats center armrest
  • Remote Engine Start : Keyfob remote start
  • Remote activated exterior entry lights
  • Remote power door locks
  • Remote window operation
  • Right rear passenger door type: Conventional
  • Rigid axle rear suspension
  • Seat Adjuster
  • Seatback storage: 2
  • Seatbelt pretensioners: Front
  • Short and long arm front suspension
  • Side airbag
  • Simulated wood/metal-look door trim
  • SiriusXM Satellite Radio
  • SiriusXM with 360L AM/FM/HD/Satellite
  • SiriusXM with 360L Satellite Radio
  • Spare Tire Mount Location: Underbody w/crankdown
  • Speed-proportional electric power steering
  • Split rear bench
  • Stability controll with anti-roll
  • Steel spare wheel rim
  • Steering Column
  • Steering Wheel
  • Suspension class: Off-road
  • Tachometer
  • Tilt and telescopic steering wheel
  • Tire Carrier Lock Keyed Cylinder Lock That Utilizes Same Key As Ignition And…
  • Tire Pressure Monitoring System: Tire specific
  • Tires: Prefix: P
  • Tires: Profile: 65
  • Tires: Speed Rating: S
  • Tires: Width: 265 mm
  • Total Number of Speakers: 6
  • Trailer hitch
  • Transmission hill holder
  • Trip computer
  • Two 12V DC power outlets
  • Type of tires: AT
  • Urethane shift knob trim
  • Variable intermittent front wipers
  • Vehicle Emissions: LEV II
  • Video Monitor Location: Front
  • Wheel Diameter: 18
  • Wheel Width: 8.5

Vehicle history by CARFAX

Accidents or damage
None reported
1-owner vehicle
Yes
Personal use only
Yes
Open recall
At least 1 open recall reported
The vehicle history information is supplied by third parties. Cars.com and the Seller are not responsible for the accuracy of such information. Cars.com provides this service and materials without representations or warranties of any kind, either expressed or implied. Please see Cars.com Terms and Conditions for further information.

Seller’s info

Rainbow Northshore GMC

(1,390 reviews)
2925 N Hwy 190, Covington, LA 70433

Seller’s notes about this car

Heated/Cooled Seats, WiFi Hotspot, Dual Zone A/C, Remote Engine Start, Onboard Communications System, Back-Up Camera, 4x4 AND MORE!
Consider Rainbow Northshore GMC, where you can find "REAL PEOPLE & REAL DEALS"! Treat yourself to the professional buying experience YOU DESERVE! Call our Internet Department today!

Have a question?

Get answers, see the car, or find a good time for a test drive. Take the next step and contact the seller.

Contact seller

Contact seller

Select a Salesperson (optional)

Check availability

By clicking here, you authorize Cars.com and its sellers/partners to contact you by text/calls which may include marketing and be by autodialer. Calls may be prerecorded. You also agree to our Privacy Notice. Consent is not required to purchase goods/services.

We value your privacy. Cars.com Privacy Notice

Price history

Listed 43 days ago.
$475 total price reduction!
6/21/25 Listed $42,335
7/09/25 -$337 $41,998
8/03/25 -$138 $41,860
Total price amount is based on price change information provided by the seller.

Customize your payment

Based on est. car price of $41,860 at ...% APR* and ...% sales tax.
$... per month
Car price
$41,860
Down payment
-Not Priced
Trade-in value
-Not Priced
Estimated sales tax ...%
(based on ZIP)
+
Other fees*
Not included
Total loan amount
Total interest paid
(over life of loan)
+
Total loan & interest paid
Monthly payment
Ad
Estimate trade-in
Estimate trade-in
Get prequalified

Not all customers will qualify. All decisions related to submission of consumer’s credit application, assignment of financing agreement, and available lenders are at sole discretion of the dealer. Cars.com is not an automobile dealer or a lender, and will not render a credit decision.

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.

Ad

Consumer reviews

See what others are saying about the 2021 GMC Sierra 1500.
(56 reviews)
Rating breakdown (out of 5):
  • Comfort 4.2
  • Interior 4.2
  • Performance 3.8
  • Value 3.6
  • Exterior 4.3
  • Reliability 3.5

Most recent consumer reviews

Bought a 2021 GMC Sierra SLT used 18k on it.

Bought a 2021 GMC Sierra SLT used 18k on it. Drove it 350 miles and the left band of lifter went bad,bent push rod and rocker arms. Got back and drove it about 300 miles and had the oil changed to make sure there was no metal in it from the work that was done. The next day I started up and it had 70+ pounds of oil pressur. Took it the dealer and now it is getting a new oil pump. This is a very nice truck to look at and drives nice but you should not have these kind of problems with a 50 thousand dollar truck. GM has paid fo6 all the fixes. Waiting to see what is next. Don't want to trade it in to give someone this problem. It suck to get a lemon.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 4.0
  • Performance 3.0
  • Value 3.0
  • Exterior 4.0
  • Reliability 1.0
  • Purchased a Used car
  • Used for Having fun
  • Does not recommend this car
3 people out of 3 found this review helpful. Did you?
Yes No

No recomiendo a nadie comprar GMC Denali antes de 70000

No recomiendo a nadie comprar GMC Denali antes de 70000 millas se daña el motor y antes de 80000 millas se daña las transmisión y el diferencial son pura belleza pero es un problema te cobran 14000 por el motor solo

Rating breakdown (out of 5):
  • Comfort 1.0
  • Interior 1.0
  • Performance 1.0
  • Value 1.0
  • Exterior 1.0
  • Reliability 1.0
  • Purchased a New car
  • Used for Transporting family
  • Does recommend this car
2 people out of 4 found this review helpful. Did you?
Yes No

This truck has a jerk when changing gears sometimes.

This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 4.0
  • Value 4.0
  • Exterior 5.0
  • Reliability 5.0
  • Does recommend this car
9 people out of 11 found this review helpful. Did you?
Yes No
See all 56 consumer reviews

Similar cars at this dealership

Used
2021 GMC Sierra 1500 AT4
52,668 mi.
$43,725
Used
2021 GMC Sierra 1500 SLT
101,308 mi.
$36,490 $500 price drop
Used
2020 GMC Sierra 1500 AT4
104,124 mi.
$36,996 $1,000 price drop
Used
2021 GMC Sierra 1500 Denali
77,576 mi.
$39,960 $1,484 price drop
Ad

Car shopper resources

Cars.com Disclaimer: The information on vehicles provided in this service is supplied by the seller or other third parties; Cars.com is not responsible for the accuracy of such information. Cars.com provides this service and materials without representations or warranties of any kind, either expressed or implied. Click here for more details.

Bluetooth® is a registered mark of Bluetooth® SIG, Inc. Android Auto™ is a trademark of Google LLC. Apple CarPlay® is a registered trademark of Apple Inc. Burmester is a registered trademark of Burmester Audiosysteme GmbH, Berlin, Germany.

*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

Call
Check availability

Contact seller

Select a Salesperson (optional)

Check availability

By clicking here, you authorize Cars.com and its sellers/partners to contact you by text/calls which may include marketing and be by autodialer. Calls may be prerecorded. You also agree to our Privacy Notice. Consent is not required to purchase goods/services.

We value your privacy. Cars.com Privacy Notice

  • Want to sell or trade-in your car fast? Get a free Instant Offer from local dealers.
  • Tell us about your car and get a free Instant Offer within minutes.
  • Schedule a car inspection with the dealer.
  • Use your Instant Offer to trade-in your car.
Get your Instant Offer