Used 2018 GMC Sierra 1500 for Sale near Phoenix, AZ
205 results
CarGurus Analysis:
2018 GMC Sierra 1500
With 208 currently listed for sale near Phoenix, AZ and an average price of $29,423.00, 23.6% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
75.5% of 2018 Sierra 1500 models on CarGurus are accident free.
The 2018 GMC Sierra 1500 features a new standard reversing camera, updated infotainment system with GMC’s IntelliLink, and enhanced safety equipment, making it a strong competitor in the truck market.
CarGurus Analysis: 2018 GMC Sierra 1500
overall
Summary
With 208 currently listed for sale near Phoenix, AZ and an average price of $29,423.00, 23.6% of 2018 GMC Sierras for sale on CarGurus are rated as good or great deals.
Favorably reviewed: Owners rated the 2018 GMC Sierra 1500 4.44 / 5 stars.
75.5% of 2018 Sierra 1500 models on CarGurus are accident free.
The 2018 GMC Sierra 1500 features a new standard reversing camera, updated infotainment system with GMC’s IntelliLink, and enhanced safety equipment, making it a strong competitor in the truck market.
Why it stands out
The 2018 GMC Sierra 1500 stands out with its blend of luxury and utility, positioning it as a formidable player within the full-size pickup truck segment. This model has been praised for its smooth ride, spacious interior, and robust engine options, which include powerful V6 and V8 variants that cater to different driving needs. Notably, the incorporation of a standard reversing camera and the IntelliLink infotainment system across all trims enhance both safety and connectivity for drivers. Moreover, the comfortable cabin and high-quality materials create an inviting atmosphere, making it more than just a work truck. While some users have pointed out the absence of certain features like backseat vents and have noted occasional engine and transmission concerns, the overall user satisfaction reflects the truck's capabilities and luxurious feel.
Other model years to consider
- Average price: $48,068.00
- Good/great deal percentage: 29.4%
- User rating: 5 / 5
- Total listings: 388
- Average price: $53,131.00
- Good/great deal percentage: 41.2%
- User rating: 5 / 5
- Total listings: 250
- Average price: $37,123.00
- Good/great deal percentage: 27.8%
- User rating: 4.9 / 5
- Total listings: 327
This analysis is based on CarGurus' proprietary market data from May 5, 2026, CarGurus experts' opinions, and generative AI.
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4.5 Overall rating
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Ryan A
Reviewed a 2018 GMC Sierra 1500 on Aug 5, 2025
Only thing i didn’t like is the gas mileage. Mine is slightly lifted though and averages about 13 miles to the gallon
Edward E
Reviewed a 2018 GMC Sierra 1500 on Feb 28, 2020
2018 GMC Sierra. Simply the best driving & riding truck I have ever owned. The magnetic ride sets it apart and was the reason I purchased a 2018 vs the newer body style without it. It’s also the reason I choose it over similar Ford and Dodge trucks.
Anonymous
Reviewed a 2018 GMC Sierra 1500 on Mar 3, 2021
very luxurious and drives incredible smooth.. Wouldnt know its a pickup truck
Jason J
Reviewed a 2018 GMC Sierra 1500 on Aug 20, 2022
Great truck, but not liking this heavy shudder from the torque converter.
2018 GMC Sierra 1500 Trims
| Trim type | MSRP |
|---|---|
| SLT Double Cab 4WD | $46,000 |
| Base | $29,000 |
| Base Double Cab 4WD | $37,000 |
| SLE Crew Cab 4WD | $44,700 |
| SLT Crew Cab | $45,200 |
| SLE Double Cab 4WD | $42,100 |
| Denali Crew Cab 4WD | $56,000 |
| SLT Crew Cab 4WD | $48,400 |
2018 GMC Sierra 1500 Price Trends
CarGurus tracks the prices of millions of used car listings every year. See how the average price of 2018 GMC Sierra 1500 prices has changed over time.
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