Used 2018 GMC Sierra 2500HD Consumer Reviews
Used Sierra 2500HD for sale
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We have a limited number of reviews for the 2018 Sierra 2500HD, so we've included reviews for other years of the Sierra 2500HD since its last redesign.
Awesome value / great truck
Ken Schiller, 11/19/2018
updated 11/20/2020
2018 GMC Sierra 2500HD SLE 4dr Crew Cab LB (6.0L 8cyl 6A)
10 of 11 people found this review helpful
Pulling my camper is great. Pulling large travel trailer is a dream. Hardly know it's back there. Great mpg. Diesel is great. Empty I'm getting 23 mpg. Pulling getting 15 mpg. Previous truck getting 9 mph. Rides real good. 5k miles on it now. No issues so far. My 2018 GMC Sierra 2500 HD crew cab has been just awesome. 22000miles on it now. It's boss on the open road. Hills are no problem. Rolls up down hills with ease. Other trucks going by are in passing gear mode. I'm purring down the road. I'd buy it again.
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very pleased
rdsampson, 06/16/2018
2018 GMC Sierra 2500HD SLT 4dr Crew Cab LB (6.0L 8cyl 6A)
9 of 10 people found this review helpful
i was able to purchest a gmc 2500 slt and it is the best buy i have had in long time thank you gmc.
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stuck in the desert
Rahn, 07/08/2019
2018 GMC Sierra 2500HD SLE 4dr Double Cab 4WD SB (6.0L 8cyl 6A)
9 of 10 people found this review helpful
So this is a replacement of a Chevy 3500 I purchased (that was bought back after 18 months). Primary purpose of purchasing is to haul a tiny house (12K lbs) across country 2 x a year between CA and Carolinas. Have made trip 5 times across and broken down 3 x. Ugh. Currently sitting at a friends house in CA while truck remans unrepaired in AZ and have been waiting nearly 3 weeks for a replacement part (believe fuel pump) that they can't locate. Have had to incur hotel expenses as well as cost to tow my tiny house and additional expenses as being stuck out in desert. GM hasn't been helpful, took over a week to reach the GM rep who I called daily. Very frustrating after paying over $70K and it is the 2nd vehicle.
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Beast of a truck. Couldn't be happier.
Getreal66, 07/07/2020
updated 07/10/2023
2018 GMC Sierra 2500HD SLE 4dr Double Cab 4WD LB (6.0L 8cyl 6A)
4 of 4 people found this review helpful
Update: This is my tow vehicle. No issues at all. Very pleased with the truck.. Truck has been flawless so far. I haven't had any issues and it tows my camper with confidence.
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1st American Built truck in 20 years
Drew, 10/18/2018
2017 GMC Sierra 2500HD Denali 4dr Crew Cab 4WD SB (6.0L 8cyl 6A)
7 of 9 people found this review helpful
This is an excellent truck, I was looking for a diesel from all the American trucks, I test drove all the trucks and read about all of them. All the reviews on GMC Denali HD2500 Diesel Duramax were dead on. I only had one issue when I first purchased the truck which was a leak with my master cylinder. They fixed it without hesitation and also painted the part of the frame below the master cylinder that took out the paint on the frame. I purchased the truck on November 30th, 2016 in Idaho, it now has 42,000 miles, we go back and forth between California and into Canada and everywhere in between quite a bit. First the interior, it's an extremely quiet truck, very minimal road noise. The Denali package is very comfortable, especially when it's blowing snow -26 degrees, you have the heated seats, heated steering wheel and just a comfy truck to drive. The only gripe about the A/C or heating system would be no vents in the back, it would be nice to have that and also more USB outlets in the rear for my kids while traveling long distances. The Duramax engine is an excellent motor, with the Allison transmission, it has lots of power and can pass multiple 16 wheelers without even sweating. The power band is very smooth as is the shifting on the transmission, we recently purchased a property in the NW and had to do some 4 wheeling to get to some of the lakes, it's a big truck but wasn't an issue to get back to these places. The sweet spot on this motor is 75mph, it will get 20 mpg, not bad for a 7,700 lbs truck. I still have the original Good year tires, they still have good life but will need get some winter tires for where we will be. I haven't bought an American car or truck for almost 20 years because of past bad experience with quality, I think all the American brands have really improved and so has GM brand, no complaints, great truck and if you're looking to haul a 5th wheeler or horse trailer, this will not be a problem.
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