The Good
The 2020 GMC Sierra 1500 offers strong performance with multiple engine options. It boasts a comfortable ride, especially in higher trims, and a stylish design with a bold presence. For practical buyers, towing capacity and available tech are appealing, while the Denali trim satisfies emotional desires for luxury and status.
The Bad
The 2020 GMC Sierra 1500's weaknesses include its interior quality, which some find lagging behind rivals, especially in lower trims. The transmission can exhibit rough shifting in certain situations. Some owners have reported electronic glitches and concerns about the reliability of advanced features. Watch out for oil consumption issues in some engines.
2020 GMC Sierra 1500: Quick Overview
- Engine Options:
- 2.7L Turbocharged I4: 310 hp, 348 lb-ft of torque
- 4.3L V6: 285 hp, 305 lb-ft of torque
- 5.3L V8: 355 hp, 383 lb-ft of torque (with Active Fuel Management or Dynamic Fuel Management)
- 6.2L V8: 420 hp, 460 lb-ft of torque
- 3.0L Duramax Turbo-Diesel I6: 277 hp, 460 lb-ft of torque
- Horsepower: Ranging from 277 hp to 420 hp depending on engine choice.
- Fuel Economy (EPA Estimated): Varies by engine and drivetrain configuration.
- 2.7L Turbo: Up to 20 mpg city / 23 mpg highway (RWD)
- 5.3L V8: Around 17 mpg city / 23 mpg highway (RWD)
- 3.0L Diesel: Up to 23 mpg city / 30 mpg highway (RWD)
- 0-60 Times:
- 6.2L V8: Approximately 5.4 seconds
- 5.3L V8: Approximately 6.1 seconds
- Towing Capacity: Up to 12,100 lbs (when properly equipped). The maximum towing capacity depends on the engine, cab configuration, and drivetrain.
- Trim-Level Features:
- Base: Basic work truck features, vinyl seats, manual windows.
- SLE: Upgraded interior, infotainment system, available convenience packages.
- Elevation: Black exterior accents, monochromatic styling, unique wheels.
- SLT: Leather seats, chrome exterior trim, enhanced infotainment system.
- AT4: Off-road focused, lifted suspension, skid plates, four-wheel drive.
- Denali: Premium leather interior, wood trim, advanced technology features, adaptive ride control.
2020 GMC Sierra 1500 Specifications
Vehicle Information
| Year | 2020 |
| Make | GMC |
| Model | Sierra 1500 |
| Trim | - |
| Style | Crew Cab 4WD |
| Type | Truck |
| Category | Special Purpose Vehicle |
Manufacturing Details
| Made In | United States |
| Manufacturing City | GOSHEN |
Dimensions
| Doors | 4-Door |
| Curb Weight | - |
| Gross Vehicle Weight Rating | 3628.74 kg |
| Overall Height | 191.52 cm |
| Overall Length | 612.9 cm |
| Overall Width | 206.25 cm |
| Wheelbase Length | 398.78 cm |
| Standard Seating | 6 |
Engine & Performance
| Engine | 5.3-L V-8 |
| Engine Size | 5.3L |
| Engine Cylinders | 8 |
| Transmission | 8-Speed Automatic |
| Transmission Type | Automatic |
| Transmission Speeds | 8-Speed |
| Drivetrain | Four-Wheel Drive |
Additional Features
| Anti-Brake System | 4-Wheel ABS |
| Steering Type | Rack & Pinion |
Pricing
| Manufacturer Suggested Retail Price (MSRP) | $39,500 USD |
| Invoice Price | $37,881 USD |
| Delivery Charges | $1,595 USD |
Vehicle History Report
Specifications
History
Events
History Check
Check
Check
Check
Check
Listings
Recalls
Check
Analysis
What Problems Does the 2020 GMC Sierra 1500 Have?
Recalls for the 2020 Sierra 1500 have addressed issues such as potential brake system malfunctions and problems with the rearview camera display. Owners should check the NHTSA website for the latest recall information and ensure all necessary repairs have been performed.
Long-term reliability concerns generally revolve around the aforementioned transmission and oil consumption issues. Premature wear of certain components, such as the cylinder deactivation system (Active Fuel Management or Dynamic Fuel Management), has also been reported. Properly maintaining the vehicle with regular servicing and addressing any issues promptly can help mitigate potential long-term reliability problems. Extended warranties are often recommended for peace of mind.
How long will the 2020 GMC Sierra 1500 last?
What Technology & Safety Features are Included?
The MultiPro tailgate is a standout tech feature, offering six different functions for enhanced bed access and cargo management. A rear camera mirror is also available, providing an unobstructed view of the area behind the truck. For safety, the Sierra 1500 has available features like lane keep assist and rear cross-traffic alert.
Crash-test ratings from the NHTSA (National Highway Traffic Safety Administration) and IIHS (Insurance Institute for Highway Safety) should be consulted for detailed safety performance. The 2020 Sierra 1500 generally receives good, but not top-tier, ratings. Optional features, such as the driver alert package, improve overall safety. Check specific crash test results for the cab configuration in question.
What Colors Options are Available?
Exterior Colors
Interior Colors
2020 GMC Sierra 1500 Prices and Market Value
2020 GMC Sierra 1500 Cost of Ownership
2020 GMC Sierra 1500 Fuel Efficiency
2020 GMC Sierra 1500 Safety Rating
NHTSA
2020 GMC Sierra 1500 Warranty
Basic
Powertrain
Rust
2020 GMC Sierra 1500 Insurance
reasonable repair costs.
How Does the 2020 GMC Sierra 1500 Compare to Other Truck?
In terms of performance, the Sierra's engine options are competitive, though the F-150 offers more variety. Feature-wise, the Ram 1500 often surpasses the Sierra in interior luxury. Reliability is a mixed bag, with the Tundra generally considered more reliable and the Sierra facing potential transmission and oil consumption issues. Price-wise, the Sierra is typically comparable to the F-150 and Ram 1500.
Alternatives include the Ford F-150 for its wide range of engines and the Ram 1500 for its comfortable ride and luxurious interior. If reliability is a top priority, the Toyota Tundra should also be considered despite its outdated design.
Ranks #318 Truck
| 1 | 2023 Toyota Tundra | (5.0★) |
| 2 | 2022 Honda Ridgeline | (5.0★) |
| 3 | 2023 Ford E-Transit Chassis | (0.0★) |
| 4 | 2020 Mercedes-Benz Sprinter Cab Chassis | (0.0★) |
| 5 | 2024 Chevrolet Silverado 3500HD | (0.0★) |
| 6 | 2023 Hyundai Santa Cruz | (5.0★) |
| 7 | 2023 Nissan Frontier | (5.0★) |
| 8 | 2024 GMC Sierra 2500HD | (0.0★) |
| 9 | 2023 Ram 4500 | (0.0★) |
| 10 | 2022 Jeep Gladiator | (5.0★) |
| 11 | 2012 Suzuki Equator | (0.0★) |
| 12 | 2009 Mitsubishi Raider | (5.0★) |
| 318 | 2020 GMC Sierra 1500 | (5.0★) |
Final Verdict: Is the 2020 GMC Sierra 1500 a Good Truck?
Arthur Johnson on March 13, 2024
Cheap TransmissionAt 71000 miles my transmission started shuttering and i took it to a gmc dealer they repaired it and ive taken back 3 times and they still cant get it fixed,purchased a 2011 arcadia and its doing the same thing. both of these vehicles are doing the same shattering on acceleration how is that possible ? for the money i spent gm should be replacing these transmission at no additional cost to me , this SUCKS
William on January 10, 2024
Great truck!I bought my 2020 with 36k miles a couple of years ago and I now have 60k miles of trouble free very enjoyable driving. It was expensive, but worth every penny. The ride is so quiet and comfortable my wife and I prefer traveling in it instead of our 2018 Acura MDX which we also love. The 5.3 V8 has plenty of power and towing ability. The multi-function tail gate is genius, I hope to never be without one again. We so enjoy all the bells and whistles, especially the wireless phone charger. So glad I bought this truck!
Dennis W. on May 16, 2022
Short turn radiusI purchased pre-owned 2020 1500 SLT in February of this year. The truck rides comfortable and has plenty of room front and rear. My and I both enjoy it. My only drawback is the turn radius (lock to lock). It lacks compared to my wife's 2018 Yukon SLT, or the 2016 Ram I traded in. Have to many times maneuver twice to park it going forward or reverse. Otherwise happy with our purchase.
Truck Enthusiast on June 13, 2021
Great TruckI did my research and test drove several models. The GMC 1500 Duramax does everything I want it to do and more. Great gas milage, nice power and very comfortable.
Dadof2Monsters on June 6, 2021
Currently in Litigation with GMCThis truck has been a nightmare! Its a beautiful truck but everything that could go wrong with the truck has. It has been in and out of the dealership 6 times now. First for the recall issues - excess glue problem on battery and seat belt positioner. Next, came the check engine lights at 7k miles which had to do with braking system. Then, at 30K more CELs which they attributed to needing system updates for emission systems. Truck also had oil pan leak, transmission cooler line leaks, and rear pinon seal leaks fixed at the same time. The CELs came back on shortly after repair. Finally, they found damage on 4 locations to the main engine wiring harness due to rubbing. They fixed that but damaged the steering column so it made a grinding noise on the wheel and was loose. Had them fix that which only worked temporarily. CELs came back on the vehicle. Truck finally died and left me stranded this past weekend due to a failing Diesel Pump and Transmission Cooling Regulator Valve. Finally, The rear window leaks from the factory but due to the amount of miles I have GMC refuses to fix it and wants 4.5K to fix the window and electronics it damaged. I have left multiple messages to my GMC case specialist only to be ignored but when I call GMC customer care they just transfer me back to them. Horrible customer service and an even worst truck.
Bubba the tire guy on June 5, 2021
Best truck we have owned!Truck meets my and my wife's needs. She loves her and I do to! Love sport mode and the tow hail mode. Rides like a Cadillac!
Hammer on March 26, 2021
Best truck I’ve boughtThe features and styling are very aesthetic. The truck has very smooth handling and response. I am impressed with the response from the Diesel engine.
Kasi on January 4, 2021
I absolutely LOVE my truck!We bought this truck in July of 2020 and it is my “Mama-mobileâ€! Yes it’s a woman’s truck 😉 I have a 7 1/2 year old son and almost 5 year old son, both who are extremely tall for their ages and there is PLENTY of room in the back with room to spare!!! I have put 15k miles on it already and it’s still drives so smooth and I have not had a lick of trouble out of it!! No regrets on this purchase at all, and I’m usually very critical of vehicles!
MattRealEstate on December 13, 2020
Pretty Bummed OutHopefully all will get resolved...coming out of a Tahoe with 110,000 miles and excited to get into my 2020 Sierra Denali 1500 Carbon Pro with the Duramax Diesel. At this point, I have had the car 2 weeks and it has been back at the deal twice, this time going on 4 days. First issue was a coolant sensor that set off an engine warning and the second problem is car wouldn’t start due to dead battery. Apparently 4 open recalls on the 2020 and I guess my dealer didn’t take care of them? They still can’t figure out what is draining the battery. Truck has about 900 miles on it. Now have the feeling of “what’s going to be messed up?†Every time I press the start button. Certainly takes the enjoyment out of owning this physically beautiful truck. When it works it is an absolute joy to drive and it is the best looking truck on the road....all that said....I want it gone.
kcronin10 on October 4, 2020
after 16 years of patiently waitingonly had it a few days but so far so good! fuel economy goes up with each drive, handles wonderfully, extremely comfortable and my grandson can do his schoolwork from the truck thanks to the tech package! Time for an extended road trip!
Cathleen V
Cathleen is an exceptional freelance writer covering hot topics in the automotive world from a gearhead's perspective. Her articles delve into various aspects of automotive technology and history, offering readers detailed insights into engine performance, reliability, and maintenance. Through her engaging and informative writing, Cathleen provides valuable information to automotive enthusiasts and consumers alike, helping them make informed decisions about vehicle maintenance and purchases.