2020 GMC Sierra 1500 Review
Price Range: $22,423 - $47,998
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Average
7.3
out of 10
edmunds TESTED
The GMC Sierra is comfortable and can be equipped with a rambunctious 6.2-liter V8. But getting the big V8 drives the truck's cost up, reducing its value. Still, if you're looking for the best interpretation of the GM family of trucks, the Sierra could be it.
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GMC Sierra 1500 model years
GMC Sierra 1500 types
- Crew Cab
- Regular Cab
- Double Cab
2020 GMC Sierra 1500 Review
Pros
- Several available powertrains for towing and hauling needs
- Long cabin provides excellent rear legroom
- Massive bed capacity and a bounty of in-bed tie-down points
- New touchscreen display is attractive and easy to use
Cons
- Interior design and cabin controls look dated
- Has a rougher ride than primary rivals
- Quality of some cabin materials is subpar
- Extra-large center stack takes up lots of cabin space
What's new
- New 3.0-liter turbodiesel available as an option
- 10-speed automatic now available with 5.3-liter V8
- Optional bed-view and trailer cameras added to lineup
- Adaptive cruise control now available
- Part of the fourth Sierra 1500 generation introduced for 2019
Overview
The GMC Sierra 1500 is based on the Chevrolet Silverado 1500, and it shares almost all of its parts with that truck. The engines, the frame, the interior layout, and even most of the available options are identical. Yet the Sierra is more expensive. So why not just get the Silverado instead? Well, to justify its higher price, the Sierra 1500 offers a slightly more premium experience, a few higher-end materials, and some exclusive options that GMC hopes will draw you in.
For sale near Ashburn, VA
64 listings
- $28,865great price$5,764 below market
- 108,474 miles
- No accidents, 1 owner, personal use only
- 5'10” bed, 6.2l, 8cyl
- Auto Deal Makers (8 mi away)
- AWD/4WD
- Back-up camera
- Bluetooth
- Leather Seats
- Keyless Entry/Start
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Located in Chantilly, VA
New Price! Priced below KBB Fair Purchase Price!Onyx Black 2020 GMC Sierra 1500 AT4 4WD 10-Speed Automatic EcoTec3 6.2L V8ONE OWNER!!!, CLEAN CARFAX!!...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
Listing Information:
VIN: 3GTP9EEL4LG191524
Stock: 191524
Certified Pre-Owned: No - 69,584 miles
- No accidents, 2 owners, personal use only
- 5'10” bed, 5.3l, 8cyl
- Koons Sterling Ford (6 mi away)
- AWD/4WD
- Back-up camera
- Bluetooth
- Leather Seats
- Sunroof/Moonroof
Close
Located in Sterling, VA
One Owner AT4 with UPGRADED Black Wheels, Sunroof, Preferred Package.No Accident Carfax Report.Experience the KOONS ADVANTAGE with great vehicles, low...
AutoCheck Vehicle History Summary
Accident Free Vehicle: Yes
Personal Use Only: Yes
History Provider: AutoCheck
Title Details: Clean Title
Salvage Vehicle: No
Frame Damage: No
Theft History: No
Lemon Status: No
Free History Report: No
Features and Specs:
18 Combined MPG (16 City/21 Highway)
Listing Information:
VIN: 3GTP9EED0LG401769
Stock: KSF250754A
Certified Pre-Owned: No
Listed since: 11-10-2025
One big party piece that the Sierra offers is the MultiPro rear tailgate. It's a six-position tailgate that can act as a table, an extension to the tailgate, or a large step for loading items into the bed. Another available option that gives the Sierra some cool factor is the carbon-fiber composite bed. Available as an option on the top trim levels, the CarbonPro bed promises decreased weight along with increased durability. Then there are the retractable side steps that can move forward and back for easier access to the cab or bed of the truck.
Aside from those GMC exclusives and some styling differences, the Sierra is the same under the hood. The GMC offers the same engine lineup as the Chevy, which includes a V6, a turbocharged four-cylinder and two V8s. And, just like the Chevy, the 2020 Sierra now offers a new 3.0-liter Duramax six-cylinder diesel engine. It provides robust towing capability, improved fuel economy and ample low-down torque.
All of these extras, coupled with a long list of standard features and impressive capabilities, make the 2020 GMC Sierra 1500 a tempting truck. However, rivals such as the Ram 1500 and Ford F-150 still hold an edge over the Sierra, with similarly equipped but less expensive trim levels and a more enjoyable daily-driving experience.
Edmunds Expert Rating
edmunds TESTED
by the Edmunds Experts
Average
7.3
out of 10
We drove the 2020 GMC Sierra 1500 on our test track and on real roads. Our Edmunds team conducts rigorous independent vehicle testing, driving 500,000 miles a year.
Performance
7.5/10
How does the Sierra 1500 drive? The optional 6.2-liter V8 is a wonderful engine. The 10-speed transmission shifts quickly. It helped our test truck cover 0-60 mph in 6.2 seconds, which is quick for a full-size truck. Maximum braking performance is also impressive, though a lack of brake pedal feel can make it hard to modulate the brakes precisely in routine driving.
We're less fond of the Sierra's handling capability. It leans over a lot and generally feels ponderous as you drive around turns. The feel from the steering wheel is also a bit numb. Off-road capability is average for a full-size truck. There's also a Traction Select system, which allows additional wheelspin and smoother initial throttle response in low-traction scenarios.
We're less fond of the Sierra's handling capability. It leans over a lot and generally feels ponderous as you drive around turns. The feel from the steering wheel is also a bit numb. Off-road capability is average for a full-size truck. There's also a Traction Select system, which allows additional wheelspin and smoother initial throttle response in low-traction scenarios.
Comfort
7.5/10
How comfortable is the Sierra 1500? The Sierra isn't quite as plush in seating as its main rivals, but the shape and support are there. The ride is relatively smooth on the highway, and the truck ably absorbs most small impacts. But the truck can get bouncy when you drive on roads that have a lot of bumps and dips.
The climate system can easily heat and cool the cabin, but operating it can be a little tricky because a lot of the control buttons are small. We really like the split-heated front seats — offering separate settings for seatback and seat cushion — a GM-exclusive feature. Engine noise is nicely muted until you get hard on the throttle, at which point it becomes a bit unpleasant but not offensive.
The climate system can easily heat and cool the cabin, but operating it can be a little tricky because a lot of the control buttons are small. We really like the split-heated front seats — offering separate settings for seatback and seat cushion — a GM-exclusive feature. Engine noise is nicely muted until you get hard on the throttle, at which point it becomes a bit unpleasant but not offensive.
Interior
7.5/10
How’s the interior? Front headroom, shoulder room and legroom are plentiful. The back seat of the crew-cab Sierra is absolutely massive. Three full-size adults can easily fit shoulder to shoulder back there. Both the driver's seat and the steering wheel have a wide range of adjustments. But dialing in a truly pleasing driving position can be difficult because of the way the steering wheel tilts up and down.
The layout of the controls is OK. We like the big volume and tuning knobs but are less fond of some of the virtual buttons on the touchscreen and the overall dated look of the cabin. As for visibility, shorter drivers will have a hard time seeing over the hood of the truck. The thick roof pillars can also impede your vision.
The layout of the controls is OK. We like the big volume and tuning knobs but are less fond of some of the virtual buttons on the touchscreen and the overall dated look of the cabin. As for visibility, shorter drivers will have a hard time seeing over the hood of the truck. The thick roof pillars can also impede your vision.
Technology
7.5/10
How’s the tech? The 8-inch infotainment screen looks small compared to the optional 12-inch screen you'll see in the Ram 1500, but GMC's system is at least relatively easy to use. Apple CarPlay and Android Auto come standard and, in our testing, connected quickly. There are USB and USB-C ports on the dash, plus more in the center console and rear-seat area, but a second set in the rear for passengers would be nice.
The native voice recognition system understands basic commands but doesn't do as well with recognizing natural speech. Our test truck also had automatic emergency braking, lane keeping assist, front and rear parking sensors, and blind-spot monitoring with rear cross-traffic alert. Most of these systems work well.
The native voice recognition system understands basic commands but doesn't do as well with recognizing natural speech. Our test truck also had automatic emergency braking, lane keeping assist, front and rear parking sensors, and blind-spot monitoring with rear cross-traffic alert. Most of these systems work well.
Towing and Storage
8/10
How are the towing and storage? The GMC's bed is quite useful and convenient. It's big, with tie-downs galore, and no one offers bed steps like these. On top of that, it has an exclusive MultiPro tailgate, which opens in six different configurations. Top Sierra trims come standard with a brake controller, trailer camera angles that help you get hitched, and memory settings for various trailer configurations. Maximum tow ratings are not best-in-class but are nonetheless very respectable.
Inside, a large center console and lots of small pockets provide plenty of space for all your small items. There are copious cupholders too. Accommodating just about any child safety seat should be easy thanks to the crew cab's massive back seat.
Inside, a large center console and lots of small pockets provide plenty of space for all your small items. There are copious cupholders too. Accommodating just about any child safety seat should be easy thanks to the crew cab's massive back seat.
Fuel Economy
7.5/10
How’s the fuel economy? The EPA says the Sierra Denali should get 17 mpg combined (15 city/20 highway). That's respectable for an upgraded V8 but not the best in class. At 17.6 mpg, we met the combined rating on our highway-dominant test loop, while our long-term average economy came out to 16.4 mpg. Impressively, we achieved 20.5 mpg during a long highway trip for our best tank.
Value
6.5/10
Is the Sierra 1500 a good value? Value is the Sierra's main weakness, especially when you're looking at the pricey Denali trim level. The interior is well-built and sturdy, but the quality of materials is disappointing. Other than the MultiPro tailgate, there's not much here that's distinctive. Other trucks offer better value and towing capability.
GMC's three-year/36,000-mile warranty and five-year/60,000-mile powertrain warranty are standard for the segment. Scheduled maintenance (oil changes and tire rotation) is included for the first visit in the first year — Ram and Ford can't match that.
GMC's three-year/36,000-mile warranty and five-year/60,000-mile powertrain warranty are standard for the segment. Scheduled maintenance (oil changes and tire rotation) is included for the first visit in the first year — Ram and Ford can't match that.
Wildcard
6.5/10
These days a truck has to do much more than the basics. Styling plays a role, as does its drivability. The Sierra has merit in those areas — with plenty of visual bravado and towing and hauling capability, it's certainly a competent rig. But its competitors do many of those things just a fraction better. If you want a full-size truck that's more comprehensively upscale, go with the Ram.
2020 GMC Sierra 1500 trim level differences
The 2020 GMC Sierra 1500 is available in six trim levels: base, SLE, Elevation, SLT, AT4 and Denali. The Sierra is offered in regular single cab, double cab and crew cab with a variety of bed lengths. All cab configurations are available with four-wheel drive.
Which Sierra 1500 trim does Edmunds recommend?
While you can go full luxe with the Denali, we think the best value comes from the midlevel SLT. It's standard with the likable 5.3-liter V8, or you can get the optional 3.0-liter diesel engine or the upgraded 6.2-liter V8 (our choice of engine). The SLT also has the trick MultiPro tailgate. Plus, most of the Denali's extra features, such as adaptive cruise control and the bed-view camera system, are available on the SLT as well.
Compare 2020 GMC Sierra 1500 trim levels
Helpful trims summary and side-by-side comparison chart

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Reliability
The 2020 GMC Sierra 1500 has a 3 years / 36,000 miles basic warranty and 11 recalls. RepairPal gives it a reliability rating of 3.5 out of 5, ranks it #4 out of 19 among Fullsize Trucks. Below you’ll find our owner reviews.
Reliability Rating by RepairPal
3.5 out of 5 stars3.5/5Above Average
#4 out of 19 among Fullsize Trucks
RepairPal Reliability Ratings are based on the actual cost, frequency, and severity of unscheduled repairs and maintenance on make/model data for select 2008-2022 vehicles. The reliability of a specific vehicle may vary depending on its maintenance and driving history, model year, trim, and features.
Cost
$637/yr
vs. $752/yr
for Average Fullsize Truck
for Average Fullsize Truck
Frequency
0.64x/yr
vs. 0.98x/yr
for Average Fullsize Truck
for Average Fullsize Truck
Severity
19.6%
vs. 19.9%
for Average Fullsize Truck
for Average Fullsize Truck
powered by RepairPal
Recalls
11 recalls foundChecking if a car has a recall is simple. Just type the car's VIN number into the NHTSA website (https://www.nhtsa.gov/recalls). If there's an unrepaired recall, you'll see it there.
If a recall shows up, just call your local car dealer. They'll know about the recall and will work with the car maker to fix it for free (if the recall happened within 10 years of the car being first sold).
- Recall Number:
- 24V797000
- Manufacturer Recall Number:
- N242454440
- Number of vehicles affected:
- 463295
- Defect Description:
- General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.
- Defect Consequence:
- Rear wheel lock-up can increase the risk of a crash.
- Corrective Action:
- Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.
- Recall Number:
- 21V985000
- Manufacturer Recall Number:
- N212346510
- Number of vehicles affected:
- 626
- Defect Description:
- General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.
- Defect Consequence:
- An ABS system that does not function properly can increase the risk of a crash.
- Corrective Action:
- Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.
- Recall Number:
- 21V115000
- Manufacturer Recall Number:
- N212329050
- Number of vehicles affected:
- 33838
- Defect Description:
- General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT4, XT5, Escalade, Escalade ESV, Chevrolet Suburban, Tahoe, Traverse, GMC Yukon, Yukon XL, 2018-2021 Chevrolet Express, GMC Savana, 2019-2020 Chevrolet Blazer, Silverado 1500, GMC Acadia, Sierra 1500, and certain Continental tires sold to the aftermarket for various model year 2018-2021 vehicles. The affected tires were cured for too long during production.
- Defect Consequence:
- Over cured tires may develop a break in the sidewall resulting in sudden air loss or a belt edge separation which could lead to a tread/belt loss. Either condition can cause a loss of vehicle control, increasing the risk of a crash.
- Corrective Action:
- GM will notify owners, and dealers will inspect the tires, replacing them as necessary, free of charge. The recall is expected to begin April 12, 2021. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N212329050.
- Recall Number:
- 20V792000
- Manufacturer Recall Number:
- N202314670
- Number of vehicles affected:
- 624216
- Defect Description:
- General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.
- Defect Consequence:
- If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.
- Corrective Action:
- GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall is expected to begin February 1, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.
- Recall Number:
- 20V684000
- Manufacturer Recall Number:
- N202319030
- Number of vehicles affected:
- 7516
- Defect Description:
- General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.
- Defect Consequence:
- Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.
- Corrective Action:
- GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall is expected to begin December 21, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.
- Recall Number:
- 20V650000
- Manufacturer Recall Number:
- N202314870
- Number of vehicles affected:
- 42
- Defect Description:
- General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 and 2020 Chevrolet Silverado 2500 trucks. One of the driveshaft joints may not have been properly welded, causing the driveshaft to separate while the vehicle is moving.
- Defect Consequence:
- If the driveshaft separates, there may be a loss of propulsion, increasing the risk of crash.
- Corrective Action:
- GM will notify owners, and dealers will replace the driveshaft, free of charge. The recall is expected to begin December 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N202314870.
- Recall Number:
- 20V446000
- Manufacturer Recall Number:
- N202305380
- Number of vehicles affected:
- 769
- Defect Description:
- General Motors, LLC. (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5 and XT6, Chevrolet Blazer, Silverado 1500, 2500 and 3500 and Traverse and GMC Acadia and Sierra 1500, 2500 and 3500 vehicles. The diffuser component of the Roof-Rail Air Bag (RRAB) inflator may not have been properly crimped to the inflator and could separate from the inflator during air bag deployment.
- Defect Consequence:
- If the diffuser separates from the inflator during deployment, RRAB performance may be degraded, increasing the risk of injury in a crash.
- Corrective Action:
- GM will notify owners, and dealers will replace the suspect RRAB modules, free of charge. The recall is expected to begin September 14, 2020. Owners may contact GM customer service at 1-866-522-9559. GM's number for this recall is N202305380.
- Recall Number:
- 20V116000
- Manufacturer Recall Number:
- N202294420
- Number of vehicles affected:
- 20352
- Defect Description:
- General Motors LLC (GM) is recalling certain 2020 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles. The bolts used to attach the front and/or rear brake calipers may have not been heat treated and may break under load.
- Defect Consequence:
- Broken caliper bolts can reduce brake performance or interfere with wheel rotation and increase the risk of a crash.
- Corrective Action:
- GM will notify owners, and dealers will replace the brake caliper bolts, free of charge. The recall began March 23, 2020. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-866-522-9559. GM's number for this recall is N202294420.
- Recall Number:
- 19V888000
- Manufacturer Recall Number:
- N192273510
- Manufactured from:
- 2018-07-11 to 2019-11-22
- Number of vehicles affected:
- 350371
- Defect Description:
- General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks. The battery positive (B+) cable rings may have been manufactured with excessive glue, potentially causing an intermittent electrical connection between the B+ cable and alternator.
- Defect Consequence:
- An intermittent electrical connection between the B+ battery cable and the alternator could cause the vehicle to stall, increasing the risk of a crash. The intermittent connection could also lead to electrical arcing, which could generate sufficient heat to damage surrounding material, increasing the risk of a fire.
- Corrective Action:
- GM will notify owners, and dealers will inspect for the presence of glue or other contamination at the B+ cable attachment to the alternator and clean the connection and reattach the B+ cable connection, as necessary. If arcing has damaged the cable, nut, or alternator, the dealer will replace the damaged components. All services will be performed free of charge. GM issued owners an interim notification on February 4, 2020. GM issued second notice and the recall began March 9, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192273510.
- Recall Number:
- 19V837000
- Manufacturer Recall Number:
- N192283991
- Manufactured from:
- 2019-08-26 to 2019-09-28
- Number of vehicles affected:
- 502
- Defect Description:
- General Motors LLC (GM) is recalling certain 2020 Cadillac Escalade, Escalade ESV, Chevrolet Camaro, Silverado 1500, Suburban, Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles. The fuel pump may be missing a pressure regulator, allowing for over-pressurization of the fuel system.
- Defect Consequence:
- Over-pressurization can crack the fuel pump and cause leaks, increasing the risk of a fire in the presence of an ignition source.
- Corrective Action:
- GM will notify owners, and dealers will replace the fuel pump, free of charge. The recall began December 18, 2019. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-888-988-7267. GM's number for this recall is N192283991.
- Recall Number:
- 19V814000
- Manufacturer Recall Number:
- N192270600
- Manufactured from:
- 2018-03-02 to 2019-10-28
- Number of vehicles affected:
- 556399
- Defect Description:
- General Motors LLC (GM) is recalling certain 2019-2020 Chevrolet Silverado 1500 and GMC Sierra 1500, and 2020 Silverado 2500, Silverado 3500, Sierra 2500, and Sierra 3500 vehicles equipped with carpet floor covering. When the front seat belt pretensioners deploy, hot gas may vent through an opening in the pretensioner bracket, possibly igniting the carpet.
- Defect Consequence:
- A vehicle fire could result if materials ignite inside the vehicle.
- Corrective Action:
- GM will notify owners, and dealers will close off the opening in the pretensioner bracket, free of charge. The recall began December 13, 2019. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-888-988-7267. GM's number for this recall is N192270600.
Warranty
3 years / 36,000 miles Basic Warranty- Basic Warranty
- 3 years / 36,000 miles
- Drivetrain Warranty
- 5 years / 60,000 miles
- Rust Warranty
- 6 years / 100,000 miles
- Roadside assistance Warranty
- 5 years / 60,000 miles
- Free maintenance Warranty
- 1 years / unlimited miles
GMC Sierra 1500 Reviews
Owner Reviews
5(49%)
4(13%)
3(11%)
2(8%)
1(19%)
Most Helpful Owner Reviews
Trending topics
Pretty Bummed Out
2 out of 5 starsMatthew Laraway, 12/13/2020
2020 GMC Sierra 1500 4dr Crew Cab 4WD 5.8 ft. SB (4.3L 6cyl 6A)
Hopefully 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.
Good but not class leading
4 out of 5 starsDavelv, 07/08/2020
2020 GMC Sierra 1500 Denali 4dr Crew Cab 6.6 ft. SB (5.3L 8cyl 8A)
Just put 8500 miles in 7 weeks on a new 2020 Sierra 1500 Denali with the 3.0 Duramax. Overall mpg was 24 with highway speeds at 75 to 80 mph. Driving at 55 mph in construction zones netted 40 to 50 mpg. Fantastic engine. Ride is smooth. Seats are comfortable. Easy to drive all day. However.... the navigation voice input is useless as it can't recognize most requests. Navigation … also will try to send you down a goat path which might be on the maps but is not a real road. And worse it still has the 2016-2018's occasional problem of saying go right when the direction is really left, and vice-versa. Expect to always have to use Apple Carplay as backup for finding stuff and getting good directions. Also the screen is small and can't adequately display maps and music info at the same time. Tailgate is very heavy, as is its subdoor which is tough to close when the gate is down. Truck came with an electrical cable hanging from underneath that if it had caught on something would have torn it away - but was easily re-positioned to tuck it out of harms way. Heads-up display is nice, but the navigation map doesn't fully translate to it, just arrows and road numbers. Radio when it starts in a garage says no satellite signal message which doesn't go away until the channel is changed in the clear. DEF usage about 1 gallon/1000 miles. The 3.0 Duramax starts quickly and idles at 300 rpm and is almost unnoticeable at stop lights. Definitely suggest getting a start/stop eliminator since otherwise it resets every time the engine starts. Lane keeping is weaker than the 2016-2018 models, and severely lags other manufacturer's capabilities to self-drive for extended periods. Adaptive cruse control uses camera and shuts off when driving into the sun, but the standard cruise can still be used - a radar unit would eliminate this problem. Interior has a lot of plastic on the doors and dash that scratches easily. Sunroof is still only a small single pane instead of dual pane. It is a nice vehicle but would be fantastic with technology upgrades, higher interior quality availability, and some luxury options, e.g. dual pane sunroof, rear window shades, 20 way seats. Note that Model selected was for the 5.3L, not 3.0 Duramax as Edmunds doesn't list it, but this review is for the 3.0 Duramax.
Technology / infotainment system not so good
2 out of 5 starsHoward, 02/14/2020
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
Thought I was upgrading when I traded my 2017 Sierra 1500 crew cab with the premium plus package for this 2020 Sierra with same equipment package. I was wrong. There are indeed upgrades, however, the technology / infotainment system were a big step backward and has me regretting this purchase. Their system doesn't work well with at least some phones ( Iphone xs with latest operating … system and 2 year old top tier Samsung ) when paired via bluetooth. GM has removed their built in messaging app so the only way to receive text messages through their system is to plug in / tether your phone and use Apple Car Play or AA. One can send text messages using voice commands but not receive, or even be notified of incoming messages when connected via bluetooth. Their system also turns the volume down on the phones which causes problems. Many pages of information / complaints regarding these issues are available by doing a search. Apparently impacts 2019 and 2020 GM products. I don't know why this isn't mentioned in all of the reviews since it would be a deal breaker for some. There are other issues / omissions on the 2020 that were on my 2017 that I find annoying such as no overhead console to store glasses, moving the wireless phone charger from the console lid to the front console losing half of the console storage area, ( which is ironic considering the phone must be plugged in for the basic phone functions to work ) and lights visible to the driver on the outside door mirrors showing when the turn signal is engaged. There is a lot to like with the 2020 Sierra but mine is an expensive vehicle with many top tier options yet the infotainment interaction with the Iphone is an 8 – 10 year step backward and shows how out of touch GM is with the consumer.
Crooked pick up bed
1 out of 5 starsDanny B, 04/14/2020
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
I bought a 2020 GMC Sierra 1500 pickup and the bed assembly is crooked.
The dealer told me "they are all that way" and "no one ever notices" and "if they do they just live with it... This is a joke....buyer beware
2020 GMC Sierra 1500 videos
Drag Race! Ford F-150 vs. Ram 1500 vs. GMC Sierra | Racing Pickup Trucks! | 0-60 Performance & More
In this drag race, we take three popular pickup trucks to the racetrack to find out which one is the fastest. These full-size pickups are three of the most powerful around, obviously excluding the off-road-specialized Ram TRX. Can the F-150 PowerBoost with its hybrid engine outrace the gas-powered Sierra and Ram 1500? Which truck has the best 0-60 time? Are the results the… same in 2WD and 4WD? Elana Scherr, John Adolph and Ryan ZumMallen answer these questions and more in this exciting pickup-truck drag race.
2020 Sierra 1500 Highlights
Crew Cab
Base
| Base MSRP Excludes Destination Fee | $35,900 |
|---|---|
| Engine Type | Flex-fuel (ffv) |
| Combined MPG | 17 MPG |
| Cost to Drive | $197/month |
| Seating | 6 seats |
rear wheel drive | |
| Max Towing Capacity | 9,800 lbs. |
| Warranty | 3 years / 36,000 miles |
Safety
Our experts like the Sierra 1500 models:
- Forward Collision Alert
- Sounds an alert and flashes a light when the system detects a possible front crash.
- Lane Keep Assist
- Detects when the vehicle is drifting from its lane and gently steers it back toward the center.
- Low-Speed Forward Automatic Braking
- Automatically applies the brakes when the system detects an impending frontal crash at low speeds.
NHTSA Overall Rating
5 out of 5 starsThe National Highway Transportation Safety Administration offers independent analysis.
- Frontal Barrier Crash RatingOverall4 / 5Driver5 / 5Passenger4 / 5
- Side Crash RatingOverall5 / 5
- Side Barrier RatingOverall5 / 5Driver5 / 5PassengerNot Rated
- Combined Side Barrier & Pole RatingsFront Seat5 / 5Back SeatNot Rated
- RolloverRollover4 / 5Dynamic Test ResultNo TipRisk Of Rollover19.1%
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