Used 2020 GMC Sierra 1500 Consumer Reviews
List Price Range
$29,590 - $44,990
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NO REGRETS!!!
B. DLS, 03/30/2020
2020 GMC Sierra 1500 AT4 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
22 of 26 people found this review helpful
Recently upgraded from the 2018 Sierra SLT to the 2020 Sierra AT4. I have been nothing but impressed and surprised with everything this truck offers. When I drove off the lot and got on the highway I immediately noticed how quickly I got up to speed (using normal driving mode, not sport) and how quite the cabin was. There was traffic on the highway and I remember driving to the dealership in the 2018 with the same amount of traffic and I had to raise the volume on stereo to hear the person I was on a bluetooth call with. I called the same person in the 2020 AT4 on the same highway and I could hear them perfectly and at a normal volume. They also said they could hear me better. The ride has been crazy smooth as well. I've been driving down the same roads I did with the 2018 and this AT4 blows it out of the water when it comes to ride comfort. The 2020 comes with the 10-speed tranny which gives the AT4 the extra towing capability which I need to pull my 35' travel trailer with more confidence. I love the look of the AT4 from the 2" lift, tires and wheels, front grille, and of course that amazing tail gate. Some critics have talked down about the anterior of the Sierra's in general. And I have to admit...I have sat in the cabin of Ram, Ford, Tundra, and GMCs. And in my opinion the RAM had the most comfortable seats. But other than the seats all other aspects are in my opinion the same if not better in the AT4. I could never buy a RAM no matter how comfortable the seats are mainly because I don't have any aspirations of being broken down on the side of the road. I think RAM puts so much focus on seat comfort because they at least want you to have a comfortable place to sit when you are in fact broken down on the side of the road and waiting on the tow truck. HA! In closing, I Iove this truck. Has everything I've ever wanted in a truck including a tri-fold tonneau cover which I got my dealer to include in the deal. Couldn't be happier.
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Very pleased with our GMC Trucks
John Corvo, 02/06/2020
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 6.6 ft. SB (5.3L 8cyl 10A)
9 of 10 people found this review helpful
We have had seven new GM Trucks over the past ten years. The 2020 GMC SLT 1500 has to be my favorite so far. The 10 speed transmission is the most notable improvement. The larger cabin and tailgate are also very nice upgrades. GMC has the best styling of the 2020 full size pickups IMO. I'm not a fan of the engine shutting off when stopping at traffic lights. I very much agree that the SLT is the best buy the money. This latest body change drives larger than the previous. Over all very pleased with our 2020 SLT and have always favored GMC styling,
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2020 GMC Sierra 1500 for sale
Showing 3 of 2641 listings
- Base Double CabMSRP: $23,585
- AT4 Crew CabMSRP: $29,555
- SLE Double CabMSRP: $25,362
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crooked bed and still clunking rear noise
fish/hunting, 09/28/2020
2020 GMC Sierra 1500 SLT 4dr Crew Cab 5.8 ft. SB (5.3L 8cyl 8A)
5 of 5 people found this review helpful
Bought a new 2020 SLT (now at 1500 miles). noticed that the truck bed is mounted not straight(crooked from side to side) when I try to put pin stripes on. At 500 miles started rear end clunking noise(apparent known issue but GM don't wanted to correct it on new models?). Dealer did a service bulletin 18-na-183. but didn't fix the problem. Have another appointment with an another dealer on Oct 8 2020. see what happens there. such a headache!
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Engine & Electrical problems
Ramon , 01/14/2021
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
7 of 9 people found this review helpful
Recently purchased my 2020 GMC SLT Sierra 1500 (October 2020). Truck was working correctly for the first 2 months, placed 3700 miles and began to notice the following issues. Hesitation while driving and electronic issues. The hesitation led to engine noise and of course the check engine light activated (multiple alerts posted on driver screen as well), and resulted in the following needing replacement. Top end of engine opened, replaced lifters, and oil control valve. Not what a new car buyer wants to hear within the first three months of ownership. The electronic issues are revolving around the LKA (lane control/assist), and collision alert systems. Noticed that vehicle does not alert correctly when lanes are crossed, noticed that vehicles in front are not detected consistently. My vehicle came with the alert system on the seat as well, and it should work with the lane control system but it is very sporadic. The lane correction on steering wheel is spotty. These are suppose to make vehicle safer, but they don't work. The phone connection with apple car play is also spotty, and at times fails to connect. Recommend new buyers be careful when purchasing vehicles with excessive bells and whistles.
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Fourth GM truck I’ve owned,
Skip, 08/29/2020
2020 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 10A)
3 of 3 people found this review helpful
I’ve owned a ‘94, 2002, 2011. Now a 2020. The first three were quiet, very comfortable, wonderful trucks. The 2020 is everything those were except for the damned seats. The seats are horribly uncomfortable. They don’t come close to the comfort of the 2011 I owned. The rest of the truck approaches perfection with only two minor annoyances: is much prefer the infotainment stereo to be either off or muted when I start the vehicle, same with the “Auto Off” feature.
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