Save your search and get notified when new inventory arrives.
Contact seller
Customize your budget
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
About your privacy: Cars.com is asking for your ZIP and credit rating because it helps us to make an educated guess at your sales tax and loan interest. These two factors can greatly change your monthly payment.
Used
GMC Sierra 1500 trucks
for sale
near
Longmont, CO
- Down Payment
- $0
- Net trade-in value
- $0
- Months
- 72
- APR
- 7.0%
- Sales tax
- 0.0%
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.






Used
2024 GMC Sierra 1500 Denali Ultimate






Used
2024 GMC Sierra 1500 Denali






Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Awsome
Stong engine and smooth! Highly recommend for familys or someone who likes a smooth truck. Purchased new and have had zero issues since then. Love it!






Used
2023 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Seamless experience
Amazing experience .super patient and no hassle team, completely transparent Charles and Rick took good care of us! I would go back there again with my next purchase
Like the truck but also disappointed
Got the duramax diesel and getting 24 city and 32 highway is very good. Truck drives nice and is very comfortable. My 2 issues with this truck is the backup camera at night is useless (very dark) and interior lighting is not very good. You would have thought a 78k truck would have footwell lights, but it doesn’t.






Used
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
My husband and I were so overwhelmed with our car search
My husband and I were so overwhelmed with our car search and were worried coming here may be just one more example of the sleazy used car salesman trope--we could not have been more wrong!! Joseph listened attentively to what mattered most to us in functionality, comfort, and price, and helped us to find many options that would be a good fit for us. We had a list of some we were interested in and he recommended some others that would fit the ticket well. He was so patient and informative as we test drove countless cars! Seriously, this guy is like a walking car encyclopedia! But also, isn't afraid to look something up if he's not sure, which rarely happens. It felt like car shopping with your cool uncle who knows everything about cars and is looking out for you. Can't recommend enough asking for Joseph when you need your next car!! He can pull almost any car from another Autonation location, so it's worth going here to work with him even if it's out of your way or doesn't have the car you think you might want! We wound up not finding our vehicle within the Autonation inventory, but still wanted to go out of our way to leave a review for Joseph because he made that much of an impact! A great ally in the stressful, overwhelming process of a big purchase :)
This truck has a jerk when changing gears sometimes.
This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.






Used
2025 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
I have the 1500 double cab with standard bed.
I have the 1500 double cab with standard bed. The reason I have this vehicle is I really like the 6.5 foot bed. The crew cab with same bed is just too long. The things I dislike about this model is that it only comes in the SLE model. For the 2025 that means the external mirrors do NOT have a power fold in and it does not have a seat memory for more that one driver. The power fold in for the mirrors is extremely important to me.






Used
2014 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Great truck, solid engine, comfortable, smooth, and it
Great truck, solid engine, comfortable, smooth, and it handles great for such a large vehicle. Get one and enjoy miles of roadtrips with all you can tow or haul.






Vehicle information
Features
Reviews
Best place to trade and buy!
I've bought many cars at different dealerships throught the years but this place this is the best! Jacobi the salesman, was amazing! Never pressured me into anything and him and my husband had a great time just talking cars. Henry test drove my trade in and actually used the turbo it was alot of fun! Chandler handled the finance with finesse and gave me the best deal and APR of just 2.5% (or close idr I know it was next to nothing lol) they also gave me a great deal on my trade. P.s hope his wife is still doing well their expecting a baby boy soon! And literally anyone's name that starts with a J there is awesome. I wrote down their names but lost the paper lol They even got my car ready and all accessories put on the day (shout out to the awesome guys that made it happen, usually i have to wait months anywhere else and the other place couldnt even get me a rental car for work!)they arrived so I could leave to drive to Texas (got a call my grandpa had died and need to drive there immediately). These guys make you feel like family, don't take advantage, and really take great care of you. If you where wondering I love my new 2022 CX30 and she handled great on that 13 1/2 hour drive to Texas and back. My husband and I are now customers for life.
My 2016 GMC Sierra 1500 SLT All Terrain - Love it!
I've owned this GMC Sierra 1500 All Terrain since it was 8 months old. With the exception of two warranty issues (failing power brake vacuum pump and transmission electrical harness), I have been totally happy with this truck. Up until now, my 1996 Chevrolet K1500 Silverado with it's 5.7L Vortec engine was my favorite truck of all time, this GMC (5.3L LS engine, 8 speed automatice) has earned the top spot now of my all time favorite truck. It is comfortable to drive, and runs as good as the day I bought it over 5+ years ago. I've got 71.5K miles on it. My biggest issue is I wished it had the 6.2L engine for better towing capabilities. Other than that ... love this truck.






Used
2009 GMC Sierra 1500 SLT Crew Cab
Vehicle information
Features
Reviews
Awsome guys
We have bought 3 cars from andrew and he coworker. These two are the best around. They take good care of their automobile’s and their buyers. We always go to them first and we will for a long while to come.
The gmc sierra that I own , I bought brand new and
I bought my gmc sierra in 2009 , brand new, and it’s the best truck that I have ever owned, and I have tried a lot of nice trucks, I mean i have owned a truck, Ford used to be my favorite , but it doesn’t even stand a chance up next to a gmc sierra like mine, my brother in-laws were very jealous about me owning it, my brothers all liked it, I have had a lot of pleasure driving my truck, and I have had very little problems with it, I’m retired now or i would buy another one just like it, gmc is the premier truck, it’s the very best, i love my truck.

Used
2023 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
"THE" GMC Truck!
I have a 2023 GMC Sierra 1500 Denali with the 3.0 Diesel engine. I have 20,000 miles on it at the time of writing this. Never owned a diesel before and now i don't think i will own another one without it. I LOVE the engine in this truck. Only complaint would be that it likes DEF fluid while towing so pick up some extra DEF before you head out to tow something. Put about 8K miles on it this summer without adding any DEF fluid. seems to use a little more in the winter or when towing. Very quiet for a deisel and the fuel economy is awesome. Driving 70 mph down the freeway this truck gets about 30mpg, Drive 55mph on regular highways and this truck gets almost 40mpg. All around driving for me is about 26mpg. I used to fill up twice a week with my gas motor and now only once a week. Wireless Apple Carplay works great and the voice texting and mapping is a big plus. I also have the new SuperCruise feature which is awesome. Get on the freeway and set the supercruise on and the truck drives itself until i get to my exit (about 28 miles from home to work). Bose stereo is out of this world and all the storage is great to. I have a swingout bed toolbox, aluminum roll up tonneau cover, Lighted black GMC front emblem, Gloss Black 22" wheels, All Black decals and my dual exhaust bezels are black as well. I rotate the tires and change the oil every 5,000 miles. Couldn't ask for a better truck. Might get the ultimate next time as that has the messaging seats which i kinda wish I had.




Used
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Good afternoon everyone, yes, I’m a lady and I’m an owner
Good afternoon everyone, yes, I’m a lady and I’m an owner of a 2017 GMC Sierra 1500 Denali, it has a V8 motor fully loaded sunroof & also it has heated seats & steering wheel for the cold winter months & in those hot summer months you have A/C seats nothing better than that am I correct? It’s been times like that wouldnt trade for the world!! So for all you ladies who think BIG TRUCKS are just for men, go out there & buy one have them put on some electronic slide in/out rails & go out & show the shows the boss!! lol 😄 I’m out looking for a new one now either a 2500/3500 pearl white






Used
2013 GMC Sierra 1500 SLE1
Vehicle information
Features
Reviews
206 SMITH ST NE po box 166
overall i like the truck alot, its a very dependable vehicle. it has its little quirks for a used truck. there's little things like the drivers door switch for the mirrors and the door locks that are not working as of now but i haven't taken the time to look into it as of yet. minor to me and i'm sure i can fix for a few bucks. nice riding and driving truck i would buy again.






Certified
2022 GMC Sierra 1500 ELEVATION
Vehicle information
Reviews
2022 GMC Sierra SLT 3.0 Duramax
My 2022 GMC Sierra 3.0 Duramax pickup truck is a good truck. I work on a farm and I also drive an hour to see my girlfriend. For the farm, it has excellent towing capability and for the hour long drive to go see my girlfriend, depending on the weather for traveling, I can get up to 35 miles to the gallon!






Used
2020 GMC Sierra 1500 Elevation
Vehicle information
Features
Reviews
Great Experience
Doug was very outstanding and polite. He answered any and all questions that we had about the vehicle/process. If you’re looking for a good car buying experience definitely look here!
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!






Vehicle information
Features
Reviews
excellent service
Came in to Levis auto sales looking for a vehicle, spoke to Levi helped me find my 2010 ford edge fully satisfied, great customer service!! highly recommended!
Short turn radius
I 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.






Used
2018 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Customer Service
Everyone was kind and helpful during our buying process. Josh in Service has been very attentive and so professional scheduling service dates and getting our missing sensors installed. They all have positive attitudes at all times.
2018 crew cab gmc Sierra 1500
Am in disbelief every week at the Gas Pumps. Thou a big truck, mileage per gallons are 18 +. Last week it was 22.8. This week 19.78.






Used
2017 GMC Sierra 1500 Denali
Vehicle information
Features
Reviews
Rick Hawkins and Red’s are the best.
Rick Hawkins is excellent. Straightforward, opposite of a stereotypical car salesman. Pleasure doing business with these folks. Will Patronize again in the future thanks much.
Smooth ride strong motor decent gas mileage inside cab is
Smooth ride strong motor decent gas mileage inside cab is loaded and very tastefully done along w easy access to knobs. Plenty of room. In back seat ! Aclassy looking Truck with a tacky looking owner!!






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
AutoNation Chevrolet North has been servicing all of my
AutoNation Chevrolet North has been servicing all of my vehicles for over 30 years and I continue to be very pleased with the great service and communication that I receive. Great job guys!
Great Truck
I 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.






Vehicle information
Features
Reviews
I was here at the dealership a few months ago and I
I was here at the dealership a few months ago and I traded in my 2010 challenger on a 2014 challenger. The new one I purchased was an absolute gem. It only had about 600 miles on it. I thought “no way will this get approved” I’ll have to drive two hours back home without the new vehicle. Well I am pleased that I had Vincent and Kurt to help every step of the way. Between the two, they got me the best deal possible and I got exactly what I wanted. Never any pressure at all from anyone. The whole team there was exceptional to work with. I couldn’t have asked for a better car buying experience. Thank you to everyone. I definitely recommend going to Omeara. I will for sure be going back when I need to purchase another vehicle. Bill
Just wondering
Does anybody else’s truck just sit there after you put it drive? I have to bump the accelerator to have it go into gear. ??????????????????????????????????????????? ?????????????






Used
2023 GMC Sierra 1500 Denali Ultimate
Vehicle information
Features
Reviews
Rafael H was very attentive to what we were looking for
Rafael H was very attentive to what we were looking for in a clean used diesel p up . His assistance in our purchase with our purchase was very good . professional, not pushy Gerald & Kay Schreiber
Amazing Truck
Excellent comfort and very good truck, it is very functional in every way, both for business and for personal, it can be said that I have the 2.7L Turbo engine and I can move up to 11500Lbs already checked by me






Used
2021 GMC Sierra 1500 SLE
Vehicle information
Features
Reviews
Prompt and quick My salesperson was respectful and
Prompt and quick My salesperson was respectful and fast to answer my questions about my purchase
Brake Pad Monitor
2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads dirty up the monitor. Needs new monitor. brakes look great to me. No noises. dealer says parts on order GM strike. Can't replace myself cause of computer...






Used
2017 GMC Sierra 1500 SLT
Vehicle information
Features
Reviews
Outstanding experience.
Outstanding experience. Christopher, our sales rep was incredible. This is our second Outlander we have purchased from him in under a year.
I love the truck. Dot trust that it won't brake do
The truck Handel's well. Sluggish when in second gear and the transmission thumps mostly when shifting down. Started about 40k. The ride is nice and comfy.
GMC Sierra 1500 prices by year
Model year | Prices from | Deals |
---|---|---|
2026 GMC Sierra 1500 | $47,990 | |
2025 GMC Sierra 1500 | $39,740 | 2 Good deals |
2024 GMC Sierra 1500 | $32,990 | 16 Good deals |
2023 GMC Sierra 1500 | $38,322 | 20 Good deals |
2022 GMC Sierra 1500 | $31,018 | 13 Good deals |
2021 GMC Sierra 1500 | $24,998 | 6 Great deals |
2020 GMC Sierra 1500 | $26,777 | 9 Good deals |
2019 GMC Sierra 1500 | $28,678 | 7 Good deals |
2018 GMC Sierra 1500 | $28,000 | 8 Good deals |
*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.
**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.
Used GMC Sierra 1500 by price
Similar Cars
-
Chevrolet Silverado 1500 for sale
37 Great Deals out of 203 listings starting at $9,984
-
Ford F-150 for sale
63 Great Deals out of 299 listings starting at $6,967
-
GMC Sierra 2500 for sale
9 Great Deals out of 73 listings starting at $12,000
Compare the GMC Sierra 1500
Used GMC Sierra 1500 by city
-
GMC Sierra 1500 in Longmont, CO
21 Great Deals out of 169 listings starting at $13,999
-
GMC Sierra 1500 in Niwot, CO
22 Great Deals out of 192 listings starting at $13,999
-
GMC Sierra 1500 in Mead, CO
21 Great Deals out of 154 listings starting at $13,999
-
GMC Sierra 1500 in Firestone, CO
21 Great Deals out of 171 listings starting at $13,999
-
GMC Sierra 1500 in Frederick, CO
22 Great Deals out of 232 listings starting at $12,900
-
GMC Sierra 1500 in Gunbarrel, CO
18 Great Deals out of 191 listings starting at $3,988
-
GMC Sierra 1500 in Erie, CO
26 Great Deals out of 288 listings starting at $3,988
-
GMC Sierra 1500 in Lyons, CO
19 Great Deals out of 131 listings starting at $13,999
-
GMC Sierra 1500 in Berthoud, CO
19 Great Deals out of 139 listings starting at $13,999
-
GMC Sierra 1500 in Altona, CO
17 Great Deals out of 154 listings starting at $13,999
-
GMC Sierra 1500 in Dacono, CO
25 Great Deals out of 253 listings starting at $3,988
-
GMC Sierra 1500 in Lafayette, CO
20 Great Deals out of 231 listings starting at $3,988
GMC Sierra 1500 by trim
-
GMC Sierra 1500 Denali
4 Great Deals out of 40 listings starting at $24,755
-
GMC Sierra 1500 SLT
3 Great Deals out of 36 listings starting at $16,907
-
GMC Sierra 1500 Elevation
6 Great Deals out of 30 listings starting at $26,777
-
GMC Sierra 1500 AT4
3 Great Deals out of 28 listings starting at $29,000
Used GMC Sierra 1500 by body style
- ${price_badge()}
- ${ami_badge()}
- ${battery_badge()}${ev_report_link()}
- ${hot_car_badge()}
- ${award_badge()}
- ${cpo_badge()}
${price_badge_description}
${ami_badge_description}
The EV Battery Rating is based on this vehicle's current expected range relative to the vehicles expected range when new. ${battery_badge_text}
This vehicle is certified pre-owned, backed by a manufacturer warranty, and typically undergoes a rigorous multi-point inspection to ensure quality and reliability.
This vehicle is currently in high demand given its competitive price, desirable features, and overall condition, and may have a higher chance of selling quickly.
${award_blurb}
${award_two_blurb}