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*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.
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Used
GMC Sierra 1500 AT4
for sale
near
El Monte, CA
- 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.
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Reviews
Teresa Land/Don Atkerson
Just want to give a shout out to Christian for a job well done! Great experience at the largest usud car dealership in the Valley! We were treated Very Well, couldn't ask for More! Thanks for all of you who helped us at CarMax!
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
2021 GMC Sierra 1500 AT4
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Reviews
Great service at J Star Dodge
J Star Dodge has the best customer service of any place of business I frequent. They have been the only place I use to service my 2019 Dodge Durango. I have 69,200 miles and it runs like it’s brand new.
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
2025 GMC Sierra 1500 AT4
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Reviews
The Audi Q3 S Line purchased from Audi Fletcher Jones
The Audi Q3 S Line purchased from Audi Fletcher Jones Costa Mesa was my wife’s favorite color, blue. After an introductory text from Austin, I was coordinating an OTD price for the specific stock number. Mo Masadeh (Sales) contacted me and within an afternoon came to an OTD price and scheduled appointment the next day. Mo was amiable to deal with during the whole of our negotiating via text (my preferred contact) and via phone. The sales process was low pressure and professional. In fact, everyone that I dealt with, Collin (Sales Manager) and Peter (Finance) were absolutely professional. I found the vehicle my wife wanted and traveled from the Inland Empire to make my purchase at Audi Fletcher Jones Costa Mesa, so that says something about both my tenacity and the overall professional and amiable experience with this dealership. Thanks to all of you for providing one of the best experiences in car-buying that my family has had in over forty years of car-buying.
I bought this after going to the dealer just to look at
I bought this after going to the dealer just to look at colors. I had a 2016 Chevy 1500 LTZ that I loved. There was my down payment and took this Denali home. Only 2 options. Paint and moonroof. I thought my chevy with 3.42 gears was quick. This one goes with 3.23's. The ride is great. Fit and finish are perfect. My only complaint is this Bose/Apple play radio is not what the 2016 Bose was.
Used
2022 GMC Sierra 1500 AT4
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equinox
Our salesmen, Miguel and Oscar were very helpful as we went thru this car-buying process, Miguel even helped me set up my bluetooth before I left for home .......... I would recommend Car Max- this is our 2nd vehicle purchase at this location.
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
2023 GMC Sierra 1500 AT4
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John Shamieh
John Shamieh did a great job on the sales contact, test drive and oriention and has been extremely helpful once I my new Etron suv home.
I own a 2023 Sierra 1500 Elevation equipped with the 2.
I own a 2023 Sierra 1500 Elevation equipped with the 2.7L TurboMax, and it’s been outstanding. It currently has 23,000 flawless miles. I’ll admit, I was skeptical of the 2.7 at first, but I jumped in feet-first and have never looked back. Living in Colorado, I regularly tow a 5,000-pound travel trailer through the Rockies with zero performance issues. The truck pulls confidently, handles grades with ease, and still delivers impressive fuel economy—23–24 mpg on the highway and about 18 mpg in town. I couldn’t be happier with this setup. If there is a negative to mention, that would be that after three years of ownership, the black wheels havent grown on me, and Im beginning to hate em. :) Lastly, the mpg while towing drops to 9mpg which is similar to that of a V8. All said, its been a great truck. :)
Used
2025 GMC Sierra 1500 AT4
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Reviews
recently visited Mercedes-Benz and had the pleasure of
recently visited Mercedes-Benz and had the pleasure of working with Mr. Jeff Tarin regarding the end of my lease end. I came in with a few preferences, which was to leaver MB & purchase a car with another Brand. I was uncertain about the most financially responsible path—whether to end my lease, purchase my current vehicle, or explore a new one. Jeff was incredibly mindful, honest, resourceful, and supportive throughout the entire process. His charismatic and empathetic approach immediately put me at ease. He took the time to thoroughly educate me on all available options, including the financial implications of each, while paying close attention to both my needs and my financial comfort. Although I ultimately decided to purchase a new vehicle, Jeff ensured that I felt confident, informed, and genuinely happy with my decision. His professionalism and care made a lasting impression, and I’m truly grateful for the time and attention he dedicated to assisting me. Thanks to Jeff’s exceptional service, I remain a proud and loyal Mercedes-Benz customer since 2017, and I look forward to returning to him for all future needs—both for myself and for my family and friends.
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?
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Love this place
Love this place , love the service, love how fast my process was to get into my M4 .best dealer I’ve ever made business, super polite , humble and very respectful, they even car washed the vehicle, man come one I was like whatttt!!! Super happy I drove out from Hollywood and I was not disappointed. Check it out for yourself!!!!!!
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
Used
2021 GMC Sierra 1500 AT4
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i just want to say that Jorge was so patient with me
i just want to say that Jorge was so patient with me during the whole process and smiling all the time and even offered me lunch which is very rare these days he's really really nice and very good at his job. I dont have enough word to thank Jorge seriously And Mina the manager was professional as well very nice we had chat after i closed the deal very nice man gave me a lot of advices about cars that no one did before If you guys go u won’t regret it at all They will make sure to give u the best value in the market for ur car if u trade in or sell an give u good deal on their cars Dont look around if u want to buy a cat Best team best manager hands down ill buy my next car with you guys for sure ASK FOR MINA AND JORGE ✌️✌️👍👍
Nicest, best performing truck I've ever owned
My truck has a great appearance, inside and out. It is a pleasure to drive; and rides and performs great. It is the best truck I've ever owned.
Used
2024 GMC Sierra 1500 AT4
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BRANDT was amazing !
BRANDT was amazing ! My niece took ownership of the 2020 Fiat Spider He was EPIC! Highly recommend AARON AUTO !! The whole Staff is a pleasure. Mahalo, MJ
Great truck to own.
Great truck to own. The 2023 GMC Sierra Denali with the 6.2L engine delivers excellent power, smooth performance, and a refined driving experience. The ride quality, interior comfort, and overall build quality are outstanding. I have had no issues whatsoever, and it has been a reliable, enjoyable vehicle from day one. I would highly recommend it to anyone looking for a premium full-size truck.
Used
2019 GMC Sierra 1500 AT4
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I purchased a truck for my business here after having a
I purchased a truck for my business here after having a bad experience at another dealer. Aaron personally went to their second location to pick my truck up. Thanks Pacific
Beautiful Truck
I bought a 2019 GMC Sierra Elevation. I traded in a FULLY loaded 2015 Sierra SLT, that I was really sad to see go, but the Elevation really sold me on styling and ride quality. I lost a couple high end bells and whistles, but the overall performance and look of the truck make up for it big time!
Used
2025 GMC Sierra 1500 AT4
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Brian Lima will deliver to your needs & make everything
Brian Lima will deliver to your needs & make everything easy during the process. He work hard & he'll make sure his customers are satisfy in every way. Keep up the good work Brian Lima 👏 👍
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
2021 GMC Sierra 1500 AT4
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I called the dealership and spoke to Gary Koch.
I called the dealership and spoke to Gary Koch. I found him to be very personable and knowledgeable. We discussed the online price and agreed to purchase the car. I am not local and handled the preliminary paperwork over the phone. Once everything was confirmed I booked a flight and Gary offered to pick me up. I was in and out of the dealership in less than 90 minutes. Gary made the car buying process super easy and enjoyable. I also received an exceptional deal.
2021 GMC Sierra Denali
This is the nicest truck I have ever owned. Lots of features. Takes a while to learn what all it does but a really enjoyable vehicle.
Used
2023 GMC Sierra 1500 AT4
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Normally I don?
Normally I don?t rely on Dealerships because I don?t trust them, but Jesse showed me that Hardin GMC is worth trusting. I?m recommending this Dealership to all my friends and family.
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
2021 GMC Sierra 1500 AT4
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Tuve una buena experiencia en esta tienda me explicaron
Tuve una buena experiencia en esta tienda me explicaron cada paso hasta asegurar que había comprendido Rolando y Carolina me ayudaron mucho
Great Buy!
This truck is amazing. Turning heads all over as we tour the area. Those riding with is also enjoy the comforts and safety features. Great Buy!
Used
2020 GMC Sierra 1500 AT4
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We had an outstanding experience purchasing our new car
We had an outstanding experience purchasing our new car from Santa Monica Buick GMC. From start to finish, the entire process was smooth and professional. The team was incredibly knowledgeable and made us feel confident in our decision. We want to give a special shout-out to Victoria, who went above and beyond to make sure everything was perfect. Her expertise and attention to detail were truly impressive. She answered all our questions with patience and clarity, ensuring we fully understood every aspect of the vehicle and the purchase process. What?s even more impressive is that Victoria continues to provide exceptional support even a week after the purchase. A week later, she?s still available and responsive, patiently addressing any questions we have with the same level of professionalism and care. The warm and welcoming atmosphere at Santa Monica Buick GMC made all the difference. It?s clear that customer satisfaction is a top priority here. We?re thrilled with our new car and highly recommend Santa Monica Buick GMC to anyone looking for a top-notch buying experience. Thank you again to Victoria and the entire team for making this such a positive experience!
Any reviews on this vehicle is not correct.
Any reviews on this vehicle is not correct. We are first owners and it’s been an excellent truck. We hate to see it go !
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*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
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GMC Sierra 1500 AT4 in La Puente, CA
5 Great Deals out of 21 listings starting at $29,995
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GMC Sierra 1500 AT4 in Valinda, CA
5 Great Deals out of 21 listings starting at $29,995
GMC Sierra 1500 by trim
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GMC Sierra 1500 SLT
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GMC Sierra 1500 Elevation
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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.
