Used 2018 GMC Sierra 1500 Consumer Reviews
Used Sierra 1500 for sale
After 11k Miles the AFM Lifters had to be replaced
Mark, 01/25/2021
2018 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 6.5 ft. SB (5.3L 8cyl 8A)
4 of 5 people found this review helpful
All was good with the truck until 11k miles. 1.5 mi run to run errands and the engine tried to stall in the middle of traffic. 11k miles. Dealer towed it in and found the AFM special lifters failed and all had to be replaced. A KNOWN issue on GMC engines with AFM. Not happy with GM who continues to sell defective features and engines.
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Issues were addressed
Ryan B, 11/15/2018
updated 05/20/2019
2018 GMC Sierra 1500 SLT 4dr Double Cab SB (5.3L 8cyl 6A)
12 of 19 people found this review helpful
Vehicle is working as it should, I am happy with my GMC.
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2018 GMC Sierra 1500 for sale near you
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- Denali Crew CabMSRP: $33,99240 mi away
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1.5 yrs, 15k miles - 18' is very good, 19'?
DMBoston99, 02/14/2019
2018 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 8A)
5 of 7 people found this review helpful
*Disclaimer - I am car snob and admit it, my only vice in life. Having been a truck owner for years (Tundra, Ram Limited) as well as an owner of a few high priced European (Audi, BMW, MB and Rover) brands, as I have gotten older, I just expect more (read: better) and the GMC Denali, for the most part, has delivered. I traded in a 16" RR Sport HSE when I bought the Denali as I needed a cargo hauler - ok, a comfy fat-ass chushy hauler, but a truck none the less. Having owned other trucks in the past, I always loved the look of the GMC so off I went. The 18' Denali is the Ultimate version (6.2L, 22" tires, completely loaded) and so far, has been just great. Seating, view, controls, performance are spectacular. This engine is strong and surprisingly, gas milage is other worldly (for a truck this size with this engine) as I average 20+ mpg (measured by hand, not computer) on the highway and usually run 75-80mph. This truck easily seats 5 comfortably and back seat space is enormous - as you would expect, plenty of cup holders, USB/plug connectors, storage, etc.. What don't I like? The touchscreen for entertainment is small - this dash is the size of a kitchen pantry and they could only go with an 8" screen? Also, single pane moonroof? The Ram clearly kicks GMC's butt in this area. The Bose sound system is fine, Apple/Android apps work great, heat/vent controls are intuitive and overall good, quiet, interior. Only other gripe, the suspension is not my favorite. While the truck handles remarkable well at lower speeds (under 40mph or in around the city), it can get a little "floaty" at times, especially when riding over expansion seems at higher speeds. Last note: I was in for a routine oil change and looked at the all "new" 19' what in the world did GMC do? The interior seats looked/felt cheap and the screen.. really, I mean really, put a bigger screen in there for old guys like me who don't want to squint :). Net/net, this a very good truck.
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mikehd
MIKEHD, 01/23/2019
2018 GMC Sierra 1500 SLT 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 6A)
9 of 15 people found this review helpful
traded my 2017 GMC due to transmission problems for a 2018 GMC same style and model it 1,000 miles on it and headed to the shop for transmission problems same problems as the 2017 I work in an automotive factory that makes parts for GM when your buying a 59,000 dollar truck you want a good reliable one maybe I should try ford or dodge they stand behind their product.
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Truck won’t start less than 2 years old
Josh G, 12/18/2019
2018 GMC Sierra 1500 Denali 4dr Crew Cab 4WD 5.8 ft. SB (5.3L 8cyl 8A)
5 of 8 people found this review helpful
I have a 2018 Denali 1500 less than 2 years old. GM wants their customers to pay out of pocket for manufacturing issues at 42000. My truck won’t even start and they won’t fix it.