Used 2018 GMC Sierra 1500 for Sale near San Francisco, CA

## Summary - With 4,647 currently listed for sale on CarGurus and an **average price of $26,565.00**, 35.3% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals. - **Favorably reviewed:** Owners rated the 2018 GMC Sierra 1500 4.43 / 5 stars. - **68.2% of 2018 Sierra models on CarGurus are accident free**. - The 2018 GMC Sierra 1500 comes with enhanced standard content and safety features, aiming to maintain its relevance before a redesign. ## Why it stands out The 2018 GMC Sierra 1500 stands out in a competitive truck market due to its blend of luxury, functionality, and comfort. With a range of available trims including the Base, SLE, SLT, and Denali, the Sierra offers buyers various features tailored to both work and pleasure. Owners report a smooth ride, powerful V8 options, and an impressive fuel economy for a truck. The well-designed cabin is roomy and adds a touch of luxury, particularly in the Denali trim, making it feel more like a high-end SUV than just a truck. However, while most reviews highlight the vehicle's pleasant features, some buyers mentioned missing amenities such as rear seat vents and basic safety technologies. ## Other model years to consider - **[2020 GMC Sierra 1500](https://www.cargurus.com/Cars/l-Used-2020-GMC-Sierra-1500-c29270)** - Average price: $33,930.00 - Good/great deal percentage: 36.2% - User rating: 4.65 / 5 - Total listings: 7,488 - **[2019 GMC Sierra 1500](https://www.cargurus.com/Cars/l-Used-2019-GMC-Sierra-1500-c27478)** - Average price: $32,406.00 - Good/great deal percentage: 36.7% - User rating: 4.73 / 5 - Total listings: 5,765 - **[2021 GMC Sierra 1500](https://www.cargurus.com/Cars/l-Used-2021-GMC-Sierra-1500-c30942)** - Average price: $35,770.00 - Good/great deal percentage: 34.9% - User rating: 4.87 / 5 - Total listings: 7,815 This analysis is based on CarGurus' proprietary market data from February 10, 2026, CarGurus experts' opinions, and generative AI.