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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 cars
for sale
near
San Marcos, 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.
Vehicle information
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Reviews
I will be coming back.
This was my first expericene shopping for cars and I was a little nervous, the sales people at Auto City made me feel welcome and did not overwhelm me with sales pitches. Frank was kind and helpful and I appriecated that. I did not purchase a car that day but because of the treatment I recieved will be going back there in the near future.
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
2025 GMC Yukon Denali
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Reviews
My wife and I purchased a really nice car (2023 Jeep
My wife and I purchased a really nice car (2023 Jeep Grand Cherokee) yesterday from Junior Alba at Kearney Mesa Jeep, Dodge. Junior listened to want we wanted and presented us with several cars that met the criteria. Very nice man. Interacted with several people during the purchase process, all nice. Give this team a chance if you are in the market for a car.
Used
2022 GMC Sierra 1500 Elevation
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Reviews
Very communicative and help helpful through the buying
Very communicative and help helpful through the buying process. Offer the best prices definitely recommend.
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 SLT
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Reviews
High Quality Buying Experience
Brian was knowledge and made time from his other responsibilities to work with us. The car we called about was ready and waiting for us when we arrived. This was our first (and likely not last) CarMax experience.
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 SLT
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Reviews
What an amazing experience!
What an amazing experience! I had the pleasure to have John Khalil as my sales agent, who happens to not only be a welcoming and zealous sales agent at CarMax of Oceanside, CA, but also a very talented painting artist!! He had great compassion for my autistic son and made sure he was always comfortable during the efficient waiting process by offering him a cute CarMax car toy, a CarMax coloring book and crayons. He went above and beyond when complex situations came about during the bank’s verification process. The determination he had to push my situation through with his persistent diligence as I watched him communicate with high professionalism and positivity as a team with his colleagues/finance management team was remarkable!!!! Thank you, CarMax of Oceanside, CA!! You all are an amazing TEAM!! I’m so happy with my car!!!
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
2020 GMC Sierra 1500 Denali
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Reviews
Best Experience Ever!
No complaints, all praise and compliments! I admire carmax business model, and them having a no negotiation rule is a beautiful thing. Ray was my consultant and we sold our 2012 forte to buy an suv. Message me if you have any questions and I will answer them.
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 !
Used
2021 GMC Yukon SLT
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Reviews
I've been taking my car for service here since 2021.
I've been taking my car for service here since 2021. Excellent service dept! Emerson is the best service guy! Recently he fixed a problem I had since I bought the car and told me about it when I picked up my car. A most excellent surprise. Hands down top notch service. Highly recommend.
I have enjoyed my vehicle.
I have enjoyed my vehicle. It is comfortable and drives very well. I like the color also. It is very roomy, takes off fast and the safety features are very beneficial.
Used
2025 GMC Sierra 1500 Denali
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Reviews
Five Stars Across the Board ?
Five Stars Across the Board ? Best Car Buying Experience of My Life! I recently bought a vehicle (Equinox EV , and I have to say?this was hands down the BEST experience I've ever had buying a car. I absolutely freaking love my new Equinox, and from start to finish, the process was seamless, clear, and even enjoyable! I walked in only knowing one thing: I wanted an EV. That?s it. The salesperson asked me just a few thoughtful questions about my needs, and after test-driving only two different models, I found the perfect vehicle for me and my family. It was like they intuitively knew what would suit my lifestyle best without ever making me feel pressured or overwhelmed. Working with Chris Keppel on the financing and contract preparation was especially outstanding. He was not only incredibly efficient and organized but also took the time to explain everything thoroughly. I walked away understanding my financing terms, my lease obligations, and even my options for potential future changes. That kind of clarity and transparency is rare?and I really appreciated it. What stood out most was how the great service didn?t stop at the sale. I was told there might be follow-up regarding a possible lease upgrade, and sure enough, they actually followed through?offering me an improved rate and the option to re-sign if I wanted to. That level of attention and care is something special, and it shows they genuinely value their customers. The entire process was comfortable and low-pressure. I felt empowered, informed, and truly excited about my purchase. I would absolutely buy from them again (though hopefully not too soon?I plan on driving this Equinox for a long, long time!).
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?
Certified
2018 GMC Sierra 1500 Denali
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Reviews
I was treated very well, I’ve not bought anything as of
I was treated very well, I’ve not bought anything as of yet. Ms Lorie wonderful will consider giving her my business.
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.
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Reviews
Honda CRV
Excellent overall experience. Sales representative was not the most knowledgeable, but was very attentive. The facility was clean and sales did not apply pressure. Representative made several follow-up calls which were appropriate and helpful to my search.
Worth the wait to finally have it
We drove two states over to McKenzie Buick GMC in Milton, FL to meet with Nick and make a purchase on our new Yukon Denali. Customer service was top notch. We were going for their 2019 Yukon Denali to replace a 2008 Tahoe LTZ. We are very pleased with the vehicle. The upgrades are wonderful. Love the cooling seats, the wifi, the HUD and even days after our purchase they have reached out to check on how we were and mailed us a small gift that meant so much. We will definitely use them again if they ever have what we’re looking for on a future purchase. - Brandon Howell 2019 Yukon Denali
Used
2021 GMC Sierra 1500 SLT
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Reviews
Had a great experience with their service department.
Had a great experience with their service department. They did great work on my GMC Yukon. Keep me informed on all the worked they performed. Definitely a great dealer to work with.
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 AT4
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Reviews
No pressure to purchase.
No pressure to purchase. The vehicle appears to be in great condition. Sales person very knowledgeable
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
2024 GMC Sierra 1500 SLE
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Reviews
Trustworthy car dealership
I really liked this dealership. Finding the the car I want and everything was smooth. Everybody is very helpful and honest. Overall I would come back
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.
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Favorite car I have owned, to date!
The Yukon checked all of my needs, I have plenty of room for my children and my Great Danes. I enjoy driving the Yukon and how it handles, overall love this vehicle!
Used
2015 GMC Yukon SLE
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Thank you!
I bought a Dodge Charger R/T here. I just want to say that I had excellent treatment. Professional, courteous, and welcoming!
Great family suv.
Just trade in my 2015 GMC Denali with 140000 miles on it and still holding strong at trade in best SUV I ever had upgraded to the new 2021 Denali and boy do I love this SUV from comfort to outside design just an amazing new well designed SUV.
Used
2017 GMC Sierra 1500 SLT
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Reviews
This dealership is one of a kind, Thank you you a fair
This dealership is one of a kind, Thank you you a fair and honest deal with great quality vehicles, they work hard to get you the best rate and financing and also gave me a great deal on my trade-in. I would recommend them to everybody. The staff Carlos, Loren, Larry work hard to make your buy an experience the best!! Thank you for the great experience, I would recommend SoCal performance to everyone!!
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
2023 GMC Sierra 1500 SLE
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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
2025 GMC Sierra 1500 Denali
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Used
2024 GMC Sierra 1500 Elevation
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Reviews
Straight to the point!! I can dig it!!
I talked to the guys there about a car on the lot. They explained to me how the process of purchased worked on their lot therefore I was up to speed on the what I was buying and how I was going to do that. Once we made the purchase Fred even through some goodies in to save me some money down the road on upgrades. I'll definitely continue doing business here!!
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
2018 GMC Sierra 1500 SLT
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Reviews
Highly recommended. A+++ on all accounts
Highly recommended. A+++ on all accounts. I came early in the morning, I was the 1st customer and within 2 minutes I was approached by a very kind and professional sales representative David. I was checking out if they have specific cars and features that I wanted like leather seats, Hybrid, etc,. He was very knowledgeable, friendly, professional and really listened to my needs. Non aggressive, good energy, easy going. If you want a good sales rep ask for David. Customer Service was excellent. By the way, I am female who drove many different cars so I was aware what I like, like and pros and cons of different features which often correlates directly with price itself. I had a budget that I was willing to spend and maximum number of miles on a car. David completely understood my needs. No pressure whatsoever. Sales rep with common sense! I really liked that everyone I encountered that day had amazing listening skills. This was the 1st and only location I visited and I ended up buying a car that same day. I did not feel the need to go anywhere else. This seemed like a good team to do business with and so I purchased used Toyota Prius v. I did research prior to visiting this location and cars offered through Carfax, another fantastic website. This Escondido location had big selection of cars. I picked 1 out of at least 4 Toyota Prius vehicles on the lot, I got exactly the car I wanted and fantastic experience. Financing option was easy easy and short. Less than 5 minutes. They need your stated income, DL and then after submission, different banks offer different interest rates based on your credit rating. I lowered both my interest and monthly payment by offering larger down payment. However, that's up to you. 20% down definitely gives you better options. At the end I received copy of all documents included Carfax print out. All nicely put together in the folder by a manager. I did drive for about 30 min 2 cars prior to purchase. Highway and streets. I liked optional insurance products such as GAP and LoJack Theft Deterrent. Although I was asked if I want it, it's optional, I was willing to pay extra $795 for each, however now I have vehicle that can be tracked and recovered if stolen by police. I also checked You Tube videos on this, and I love it. The manager Diego gave me Free Oil Check for the future, number for insurance that ended up giving me cheap rate yet fantastic policy the following day. Vehicle I bought was all nice and clean, everything ready and prepared to go! Great people, great experience, highly recommend.
new owner of the gmc denali, 2018 6.2
handles and drives great, the electronics don't always work, mirrors don't always work, spray with wd 40, check engine light, EVAP culprit, auto nation has no luck with this, will drive it till the warrenty expires and its back to ford for me
About GMC
What is the cheapest GMC vehicle available?
The GMC Acadia Limited is the cheapest available vehicle by average Cars.com listing price in GMC's lineup, with an average listing price of $12,637.
Which GMC vehicle has the best MPG?
The GMC Yukon Hybrid can reach up to 21 MPG city and 22 MPG highway for a combined rating of 22 MPG. The GMC Terrain with traditional internal combustion engine offers up to 26 MPG city and 30 MPG highway for a combined rating of 28 MPG.
These figures are based on EPA mileage ratings and are for comparison purposes only. The actual mileage will vary depending on the selected vehicle model year, trim, driving conditions, driving habits, vehicle maintenance, and other factors.
Which GMC vehicle has the longest range?
The electric GMC Sierra EV can travel up to 440 miles on a single charge depending on electric motor and battery options.
EPA-estimated range is the distance, or predicted distance, a new plug-in vehicle will travel on electric power before its battery charge is exhausted. Actual range will vary depending on model year, driving conditions, driving habits, elevation changes, weather, accessory usage (lights, climate control), vehicle condition and other factors.
Which GMC vehicle has the most deals?
The GMC Sierra 1500 has the most available deals on Cars.com with 3246 great deals out of 16553 listings starting at $2,000.
Where can I find the most GMC deals?
The most GMC deals can be found near Carlsbad, CA with 16 great deals out of 105 listings starting at $4,500.
*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 by price
Used GMC by city
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Used GMC in Lake San Marcos, CA
16 Great Deals out of 106 listings starting at $4,500
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Used GMC in Vista, CA
12 Great Deals out of 79 listings starting at $4,500
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Used GMC in Escondido, CA
16 Great Deals out of 106 listings starting at $4,500
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Used GMC in Carlsbad, CA
16 Great Deals out of 105 listings starting at $4,500
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Used GMC in Hidden Meadows, CA
11 Great Deals out of 76 listings starting at $4,500
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Used GMC in Encinitas, CA
11 Great Deals out of 85 listings starting at $4,500
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Used GMC in Rancho Santa Fe, CA
11 Great Deals out of 85 listings starting at $4,500
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Used GMC in Bonsall, CA
11 Great Deals out of 70 listings starting at $4,500
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Used GMC in Fairbanks Ranch, CA
11 Great Deals out of 85 listings starting at $4,500
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Used GMC in Oceanside, CA
11 Great Deals out of 78 listings starting at $4,500
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Used GMC in Solana Beach, CA
11 Great Deals out of 85 listings starting at $4,500
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Used GMC in Valley Center, CA
11 Great Deals out of 80 listings starting at $4,500
Used GMC in San Marcos, CA by model
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GMC Sierra 1500 in San Marcos, CA
7 Great Deals out of 31 listings starting at $15,977
Used GMC by body style
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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.
