The 2015 GMC Sierra 1500 is a luxurious full-size truck ranging used from $23,492 to $38,991. The Sierra 1500 series offers excellent technology, but is not as reliable as some of its competitors.
2015 GMC Sierra 1500: Quick Overview
- The 2015 GMC Sierra 1500 is below average in reliability. You can find one used from $23,492 to $38,991. The Denali model offers the most luxury and features.
- There are three engine options available for the 2015 Sierra 1500 series. The V6 has the best fuel economy, and the 6.2L V8 offers the most power.
- Fuel efficiency is good with the V6 engine in the 2015 GMC Sierra 1500, but it drops off with the larger motors. Owners report that the cabin feels luxurious and spacious.
- For 2015, there were four different models for the Sierra 1500 series. It got a five-star crash test rating from the National Highway Traffic Safety Administration (NHTSA). The magnetic ride control on the Denali model was a new feature as well.
- The 2015 GMC Sierra 1500 series is a good full-size truck, but it focuses on luxury rather than utility. The issues with high mileage reliability and expensive purchase prices make this a truck that does not sell as well as its competition.
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What Problems Does the 2015 GMC Sierra 1500 Have?
The most common problem reported for the 2015 GMC Sierra 1500 is an issue with the 4WD system. When the transfer case sensors or switches fail, it will cause a “Service 4WD” light to turn on at the dash.
Another problem over the years is an issue with the fuel gauge. The fuel sensor fails and causes the fuel gauge to display incorrect information. This is an expensive fix requiring replacement of the entire fuel pump module.
What are the Available Models?
The 2015 GMC Sierra 1500’s four trims, three bed lengths include tough Work Truck and uber-luxurious Denali. The 2015 GMC Sierra 1500 is available used for $23,492 to $38,991 depending on the model and mileage. When the trucks were new, they had a price range from $27,020 to $53,465.
- The base GMC Sierra 1500 series model is simply called the base. This has a 4.3L V6 engine, and a seven-inch infotainment screen. It is more of a fleet work truck.
- Next up is the SLE model and with an upgraded 5.3L V8 engine, improved exterior styling with less plastic trim, an upgraded eight-inch infotainment screen, and a 4.2-inch driver information screen
- Above the SLE is the SLT model, which offers either a 5.3L V8 or 6.2L V8, power seats, leather seats, and heated seats for added comfort.
- Denali is the top of the line, offering magnetic ride control, luxurious exterior styling, improved leather seating and trim, and a chrome exterior package with a unique grille.
How Long Will the 2015 GMC Sierra 1500 Last?
Based on owner reviews and previous generations of the GMC Sierra 1500 series, it should last over 250,000 miles. According to Repair Pal, plan on spending $765 a year on maintenance costs. An axle shaft replacement is the most expensive repair, costing over $1,500.
What Technology is Included?
- The base technology includes a seven-inch infotainment screen.
- Upgraded technology includes a larger eight-inch IntelliLink infotainment system with Bluetooth, USB, and AUX inputs, and a 4.2-inch color driver information screen.
- For safety, there is a standard rearview camera on the SLE, SLT, and Denali models. There are also optional forward collision warning and lane departure warning systems in the upgraded technology package.
Does the 2015 GMC Sierra 1500 have Good Gas Mileage?
The 2015 Sierra 1500 series comes in second place for full-size pickup trucks in fuel economy. The V6 engine gets up to 18 miles per gallon in the city and 24 on the highway. Those numbers decrease with the larger engine options.
What Engine Options are Availble?
The 2015 GMC Sierra 1500 engine options include daily driver V6 and two powerful V8s. The GMC Sierra 1500 series is built for hauling supplies and towing. The large 6.2L V8 has a maximum towing capacity of 12,000 pounds.
- The base engine is a 4.3L V8 engine with 285 horsepower.
- Next up is a 5.3L V8 engine with 355 horsepower.
- A 6.2L V8 is the largest engine with 420 horsepower.
What Color Options are Available?
How Safe is the 2015 GMC Sierra 1500?
In 2015, the GMC Sierra 1500 series earned a five-star crash test rating from the NHTSA. This includes a five-star rating for front and side-impact crashes and a four-star rating for rollover. The optional safety technology helps make this a safe truck.
The IIHS gave the Sierra 1500 series a rating of “good” in all the categories tested. The Sierra performs well in crash tests for a full-size truck.
How Big is the 2015 GMC Sierra 1500?
The 1500 is a large full-size truck comparable in size to others in its class. It has three available bed lengths, a short bed which is 69.9 inches, the standard at 79.4 inches, and a long bed measuring 98.2 inches. Owners report the interior cabin is roomy and comfortable for a truck.
How Does the 2015 GMC Sierra 1500 Compare to Other SUVs?
The 2015 GMC Sierra 1500 series ranks near the bottom of the list in the competitive full-size truck market based on owner reviews. One of the most popular trucks on the market is the Ford F-150. The GMC focuses more on giving the owner a luxury truck experience, and the Ford offers better value. The F-150’s powertrain is more reliable than any you will find in the GMC.
Another competitor to the Sierra is the Toyota Tundra. The Sierra has more powerful engine options, and it can tow more than the Toyota. It also offers a more luxurious interior with better infotainment. Where the Tundra pulls ahead is in overall build quality and reliability. They have some of the longest-lasting engines found in a full-size truck. Ultimately, most trucks in this class are similar and it often comes down to brand preference when choosing the right truck for you.
Final Verdict: Is the 2015 GMC Sierra 1500 a Good SUV?
Yes, the 2015 GMC Sierra 1500 series is a good truck. It offers a more luxurious experience than you will find in most of its competitors. It also has one of the highest towing capacities in its class at up to 12,000 pounds. Where it falls short is in overall reliability compared to the competition. It is relatively expensive, making it less popular than the more affordable choices.
Photos: GMC