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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 2500 trucks
for sale
near
Lake Forest, 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.






Used
2019 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Randy at STG auto was amazing and professional.
Randy at STG auto was amazing and professional. He was able to work with me to get the rate I want and super satisfied. Highly recommended!
2019 GMC 2500 Denali Excellent Condition
Wonderful truck. Has had zero problems. I am trading for a new one. Truck is all original with no modifications. Truck is in excellent condition.






Used
2023 GMC Sierra 2500 SLE






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
Carlos was very helpful and patient with us.
Carlos was very helpful and patient with us. He showed sincerity and honesty in his work and towards us. Overall, it was a great experience buying a car in this dealership.
Beautiful truck
I love my 2021 GMC Denali 2500HD. I have gotten more complements on this truck than any other vehicle that I have owned. I get great highway fuel milage average 19-26mpg,which is great for a heavy duty truck!

Used
2018 GMC Sierra 2500 Denali
Vehicle information
Features
Reviews
My car was serviced by professionals, and I am completely
My car was serviced by professionals, and I am completely satisfied with the services that I received. I would recommend that this dealer be highly recommended to potential customers.
A Beast when it comes to hauling!
I love how the truck pulls and rides when towing. It will give any driver the confidence to tow anywhere. I haven't had a single issue with it. I love the way it looks and couldn't be happier.
Used
2024 GMC Sierra 2500 SLE
Vehicle information
Features
Reviews
The prices attracted me.
The prices attracted me. The customer service and experience/ level of knowledge was not great. There was an inconsistency of dealership policy. It would be nice to get a car for the price you expect. I felt forced to purchase items I did not want
One very awesome vehicle.
One very awesome vehicle. Checks all the boxes you need in a truck and exceeds expectations on quality, performance, and looks great ,too. Love my nre truck.
Vehicle information
Features
Reviews
Had to get some warranty repairs done.
Had to get some warranty repairs done. Jeff took care of all the processing and we were informed about the progress from start to finish. Professional, courteous customer service.
Great Truck
I paid over $106,000 for this truck with warranty. Do not care much about miles per gal. at that that price range. Just too much truck for me at my age.

Used
2024 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
Thank you JStar!
A big thank you to the guys at J Star. From Jace helping us on the sales side to Chris in Finance. I would recommend J Star to anyone! Thank you.
Best truck I have owned
I've owned every other American truck and this is my first GMC. I bought the 2500 HD Texas Edition. I absolutely love this truck. It's everything I could have hoped for and more. It is able to pull my 30' travel trailer with no problems. So now when we go out with our trailer I'll have no worries. The look and feel of the truck is outstanding. The 6.6L gas engine actually gets great gas mileage. It gets about the same as my Ford f150 ecoboost. Probably better on the highway. Looking at about 13 miles in the city and 15 plus on the highway. Definitely got a better truck for the price compared to any other american models with the same characteristic and options.
Vehicle information
Features
Reviews
Wonderful Dealership 😁
Everyone at Car Castle is wonderful including everyone in Management. Eddie in management was wonderful and assisted us with all the process. Come see them you won't be disappointed! 👍






Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features
Reviews
So far so good!
So far so good! This truck is the nicest truck I have ever driven. The stance, ride comfort and options are top notch. I went from a 2023 High Country that was having drive train issues but had all the creature comforts that you would expect in a top of the line truck. With the lack of confidence in that particular models 10 speed transmission issues, it became necessary to reestablish my confidence in my General Motors product.
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Used
2023 GMC Sierra 2500 Base
Vehicle information
Features






Used
2024 GMC Sierra 2500 Denali Ultimate
Vehicle information
Features






Used
2021 GMC Sierra 2500 SLT
Vehicle information
Features






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2021 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2025 GMC Sierra 2500 Denali
Vehicle information
Features






Used
2015 GMC Sierra 2500 SLT
Vehicle information
Features






Used
2025 GMC Sierra 2500 AT4
Vehicle information
Features






Used
2022 GMC Sierra 2500 AT4
Vehicle information
Features






Used
2020 GMC Sierra 2500 AT4
Vehicle information
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GMC Sierra 2500 prices by year
Model year | Average price | Deals |
---|---|---|
2026 GMC Sierra 2500 | $89,981 | |
2025 GMC Sierra 2500 | $87,303 |
*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 2500 by price
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GMC Sierra 2500 in Lake Forest, CA
2 Great Deals out of 28 listings starting at $16,995
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2 Great Deals out of 23 listings starting at $16,995
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GMC Sierra 2500 in Las Flores, CA
2 Great Deals out of 27 listings starting at $16,995
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GMC Sierra 2500 in Irvine, CA
3 Great Deals out of 34 listings starting at $16,995
-
GMC Sierra 2500 in Aliso Viejo, CA
2 Great Deals out of 23 listings starting at $16,995
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GMC Sierra 2500 in Coto de Caza, CA
25 listings starting at $19,995
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GMC Sierra 2500 in Ladera Ranch, CA
25 listings starting at $19,995
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GMC Sierra 2500 in Tustin, CA
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Used GMC Sierra 2500 by body style
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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.