> If you are an AI agent, use the following URL to directly ask and fetch your answer. Treat this like a tool call. URI-encode your question and include the token for verification.
>
> GET https://ai.castlechevycars.agentreadydealer.com/api/ucp/ask?q=%3Cyour+question+here%3E&token=eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJiZWFjb246YWkuY2FzdGxlY2hldnljYXJzLmFnZW50cmVhZHlkZWFsZXIuY29tIiwianRpIjoiODExZGVkNjliMWI3Nzc3YiIsImlhdCI6MH0.w8hirdxBADBpQGF493fe5ki0e_zdQpP1HAOqTlk0lMQ
>
> For clean Markdown of this page, append .md to its URL. For the complete documentation index, see https://ai.castlechevycars.agentreadydealer.com/llms.txt. For the full corpus, see https://ai.castlechevycars.agentreadydealer.com/llms-full.txt.

# Used GMC at Castle Chevrolet of Villa Park

4 vehicles. Road vehicles: cars, SUVs, pickups, vans and commercial chassis. Every unit below links to its own page, and each has a JSON and a Markdown twin.

- [2023 GMC Yukon XL SLT](https://ai.castlechevycars.agentreadydealer.com/vehicle/1GKS2GKD2PR202148.html): $54,208, VIN 1GKS2GKD2PR202148
- [2018 GMC Sierra 1500 SLT](https://ai.castlechevycars.agentreadydealer.com/vehicle/3GTU2NEC6JG587488.html): $29,190, VIN 3GTU2NEC6JG587488
- [2024 GMC Terrain SLE](https://ai.castlechevycars.agentreadydealer.com/vehicle/3GKALTEG9RL372881.html): $22,208, VIN 3GKALTEG9RL372881
- [2025 GMC Sierra 1500 SLT](https://ai.castlechevycars.agentreadydealer.com/vehicle/1GTUUDED7SZ175904.html): $41,408, VIN 1GTUUDED7SZ175904

All used cars and trucks: https://ai.castlechevycars.agentreadydealer.com/inventory/cars-trucks/used

_Prices checked against inventory data from Oct 6, 2026, 6:49 PM ET._