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 AT4
for sale
near
Sullivan, WI
- 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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Fantastic employee assistance and buying experience.
Fantastic employee assistance and buying experience. Huge thanks to “LJ” and Dogan for getting me hooked up with an amazing Toyota Camry
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
2021 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I was greeted at the door by Mr.
I was greeted at the door by Mr.Harris he was very pleasant and answered any questions I had. He made the process easy for me as a first time buyer and qualified me for the car I want it I highly recommend going to this dealership for your vehicle purchase and ask for Mr. Harris The whole staff was just amazing I highly recommend Gordie Boucher for your vehicle purchase don’t think about it just make it your one stop only stop.
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
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Jason Archimede came to us as soon as we walked in
Jason Archimede came to us as soon as we walked in answered all our questions and after explaining what we were interested in quickly found us the car we were wanting within our budget. He kept us comfortable and entertained our toddler making it as smooth as possible and made sure we were 100% satisfied and setup before driving off the lot
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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Easy Purchase Experience
I recently purchased a new G70 from this dealership. The whole process was about as pleasant as a new car purchase can be. The salesperson Amanda, did a fantastic job reviewing all the car's features and helped me set up and personalize the vehicle. The Finance Manager, Tony, was clear and concise with all the documents.
Pleased that I made this purchase
Waiting for the Refreshed 2022 AT4 was well worth it! With all the manufacturing issues today, building and shipping was slow, but understandable. Love the truck and the features! Fit is perfect and quality is #1. Pricing was too high but all vehicles are running this way. You get what you pay for and this truck is perfect! I have owned many trucks and this by far is the best. The latest features are beyond most other makes and GM has thought this truck through from front to rear.






Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I drove from Chicago to Janesville to purchase a Nissan
I drove from Chicago to Janesville to purchase a Nissan Kicks. I was very impressed with the honest, personable service I received from Alan, Jason, and the whole team of salesmen. I can't say enough good things about the way they treated me. They were thorough and prompt. I was in and out of there in no time flat. I would recommend them to anyone going to buy a new Nissan.
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
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
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!






Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
This dealership is Awesome and easy to work with Will be
This dealership is Awesome and easy to work with Will be back! Make sure you get your floor mats.
"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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
The Boucher team has always made us feel like family
The Boucher team has always made us feel like family whenever we do business with them. Mike Hanson, Scott Foote, and Mike Garrett all went above and beyond to make sure we were taken care of. 5+ star service. We will be a life long customer for sure!






Used
2024 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
While I purchased a used car from Bolts my customer
While I purchased a used car from Bolts my customer experience was timely, professional and no nonsense. I indicated I wanted one price quoted and the # was final...they presented the car with all the service history and during their service review identified and fixed all upcoming problems that might occur. Colin the fiance mgr. was pleasant and efficient. I would recommend this dealership as I felt valued and appreciated as a customer...Thks to you all
I love it the look the interior mine is a red one and it
I love it the look the interior mine is a red one and it looks so good and it’s my baby and it runs so good and the technology is off the chain






Used
2024 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Russe Darrrow worked for me
Only dealership in milwaukee that had the car i was looking for and was patient enough with me to ensure i pulled off in the vehicle of my choice. as a first time buyer, i was very satisfied with their service.
2024 GMC sierra 1500 duramax 3.
2024 GMC sierra 1500 duramax 3.0 is great truck. Great ride and great MPG. 100% recommend to any prospective buyer. Love the truck and how it perform.






Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Brad did an excellent job going thru my Rogue after I had
Brad did an excellent job going thru my Rogue after I had problems with it. I bought it at the Oak Creek Dealership a few days b4. I was having problems withe the front end lower plate being broken partially off. We took it to the Good Hope Dealership for service. Brad said it needed to have the bottom plate replaced and he would steam clean all the filthy mud stuck under the car. It was even wet in the spare tire compartment. Im told it now was a flood car which I just found out about. I m happy that Brad took care of the problems that should have been taken care of b4 it left the lot in Oak Creek. Thank you Brad.
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
2025 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I arrived late to pick up my vehicle.
I arrived late to pick up my vehicle. Fortunately one of the Service writers noticed my arrival as he was leaving for the night. He came back to the dealership and secured my vehicle and billing. Great service.
Overall I am very happy with my new Truck.
Overall I am very happy with my new Truck. GMC however needs to address their software glitch where the display screen intermittently stops working or the audio cuts in and out. I keep hearing a software update is being worked on but that was a while ago?






Used
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
They really made this a smooth experience.
They really made this a smooth experience. Especially when it came to the actual purchase of the vehicle. We dealt with Nick as our sales person and he was great at communicating with us and insuring any needs or concerns were addressed.
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
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Follow up review on 2015 online Suburban purchase.
Follow up review on 2015 online Suburban purchase. Dealership went above and beyond to make things right and actually took responsibility for the items that needed attention. I went from never going back there to being their number one fan. Great customer service after the sale! Great working with you all!






GMC Certified
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I will return.
I will return. Best service department in Waukesha. And I have been to several of them.






Used
2020 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I went in for an oil change and came out with a new
I went in for an oil change and came out with a new vehicle. The sales staff are amazing. Friendly, accomodating and efficient. The manager in the service department pays attention to the details. He has been very friendly and accomidating.
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
2023 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Great!
Great!! Did everything they could to make it a pleasurable car buying experience! Great job to the team at Boucher BGMC






Used
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I had an outstanding experience working with Ty on my
I had an outstanding experience working with Ty on my recent vehicle purchase. He was consistently responsive, knowledgeable, and never pushy throughout the process. We don’t purchase new vehicles often, but when the time comes again, I will certainly return to Ty. I highly recommend him to anyone looking for a straightforward and positive buying experience.






GMC Certified
2022 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
I was very happy with my entire experience at this
I was very happy with my entire experience at this dealership ship. The entire staff from the sales manager, salesman, service manager and master mechanic were all very friendly respectful and professional. I would highly recommend this dealership to anyone looking to purchase a vehicle.






Used
2019 GMC Sierra 1500 AT4
Vehicle information
Features
Reviews
Everyone was very polite and friendly Tim was very
Everyone was very polite and friendly Tim was very helpful and and courteous he went above and beyond to get my car repaired and can?t wait to come back in for normal service
2019 Sierra SLT X31
I purchased a new 2019 SLT with the X1 package. It has the Red Quartz Tintcoat paint. I usually never leave reviews, but honestly this is the most comfortable, nicest loking truck I've owned , and I've ownwd alot of them. The only issues I've had was the brake software was flawed, took it to the dealer on recall and they installed a new software patch, Other then that I love the styling, performance and the interior is very nice. No regrets
-
Prev - 1
- 2
-
Next
*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.
GMC Sierra 1500 AT4 by city
-
GMC Sierra 1500 AT4 in Dousman, WI
43 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Summit, WI
44 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Oconomowoc, WI
40 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Oconomowoc Lake, WI
44 listings starting at $34,990
-
GMC Sierra 1500 AT4 in North Prairie, WI
1 Great Deal out of 52 listings starting at $31,289
-
GMC Sierra 1500 AT4 in Okauchee Lake, WI
40 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Delafield, WI
44 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Wales, WI
49 listings starting at $32,594
-
GMC Sierra 1500 AT4 in Nashotah, WI
44 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Eagle, WI
49 listings starting at $32,594
-
GMC Sierra 1500 AT4 in Chenequa, WI
44 listings starting at $34,990
-
GMC Sierra 1500 AT4 in Hartland, WI
44 listings starting at $34,990
GMC Sierra 1500 by trim
-
GMC Sierra 1500 Elevation
7 Great Deals out of 29 listings starting at $25,440
-
GMC Sierra 1500 Denali
3 Great Deals out of 27 listings starting at $26,998
-
GMC Sierra 1500 SLT
3 Great Deals out of 23 listings starting at $14,950
- ${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.