2015 GMC Sierra 1500 Review

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5.0
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Consumer Reviews
5 Reviews
2017
The Car Connection
2017
The Car Connection

The Car Connection Expert Review

Marty Padgett Marty Padgett Editorial Director

The 2015 GMC Sierra is a great pickup that offers simple and powerful engines, easy-to-use infotainment, and inoffensive styling inside and out.

The recently overhauled 2015 GMC Sierra 1500 delivers some of the best hauling and towing numbers of any light-duty full-size truck while returning better fuel economy and performance. And it boasts enough ports and connections to turn almost any Sierra into a mobile workplace.

For 2014, both the Sierra and its sibling Chevy Silverado received new powertrains, nicer cabins, weightier styling, and a raft of new infotainment and safety features. As a result, they land much closer in our overall ratings to those current benchmarks from Ram and Ford.

The latest Sierra's look is muscular and refined, without straying too much from previous GMC truck design. The 1500 takes cues from the heavy-duty model, including a hood that sits just as high, and a blunt front end with plenty of chrome. The interior features a well laid-out upright dashboard, with easy-to-use controls that can be manipulated even by a gloved hand. Materials are as nice as any in the truck market, with soft-touch plastics used at almost all touchpoints. GMC's signature red lighting is used on the clear gauges as well as for ambient lighting on models so equipped. 

Power comes from GM's latest menu of improved truck engines. All employ cylinder deactivation, direct fuel injection, and continuously variable valve timing. The base 4.3-liter V-6 is worth a look for all but serious and frequent haulers. The step up is a 5.3-liter V-8 making 355 horsepower, which can handle almost any towing task up to 11,000 pounds. A 6.2-liter V-8 producing 420 horsepower and 450 lb-ft of torque is also available, sacrificing a little bit of fuel economy for all-out towing and hauling capability.

All three engines can be teamed with either rear-wheel drive or four-wheel drive, and a six-speed automatic transmission (with a ‘cruise grade braking’ feature to reduce brake wear) is offered with the 4.3-liter V-6 and 5.3-liter V-8. New for 2015, GMC is adding an eight-speed automatic, paired exclusively with the 6.2-liter V-8. It improves fuel economy slightly while also making it easier to tow and haul large loads, making the powertrain more flexible.

All models get electric power steering, and four-wheel disc brakes with special long-life brake rotors are standard across the model line. The Sierra's ride quality is a bit better than before; it's the steering that gets our attention, though, with its quick reflexes and just-right weight.

Sierra Crew Cab models are offered with two different bed lengths—5’8” or 6’6”—while regular-cab models are offered in 6’6” or 8’ lengths and the Double Cab extended-cab versions all include the middle size. Crew Cab models get longer doors as well, with the B-pillars moved forward, resulting in easier entry and exit, and extended-cab versions get front-hinged rear doors—nearly rivaling the outgoing Crew Cab models in convenience. We prefer the Sierra's cloth seats to the leather ones with ventilated, for better comfort, but we know we're running against the luxury grain there. In the bed, the Sierra steps up with an integrated bumper step, LED bed lighting, and a damped tailgate that lowers as smoothly as the glovebox on a Lexus LS.

Safety features were also upgraded for 2014, with a suite of new optional active-safety aids. Forward Collision Alert and Lane Departure Warning—both camera-based—can help you stay aware of hazards, and the optional Driver Alert Seat can vibrate with pulses on either side to alert the driver quickly to issues. Trailer Sway Control and Hill Start Assist are included as part of the standard StabiliTrak stability control system.

All Sierras get air conditioning, keyless entry, and an AM/FM radio with a 4.2-inch color display. GMC’s IntelliLink connectivity system is optional on the Sierra; it combines full voice-command Bluetooth connectivity with Bluetooth audio streaming, a Pandora app, and available navigation, with an eight-inch reconfigurable touch screen. A 110-volt AC outlet is also on offer, and some models include up to four 12-volt outlets and five USB ports, as well as an SD card slot. Blu-Ray DVD players and different seating configurations are available.

The latest Sierra also offers some high-content top models for those looking for a truck packed with options and style. Sierra All-Terrain gets the optional Z71 off-road suspension, monotube Rancho shocks, recovery hooks, a transfer-case shield, hill descent control, an auto-locking rear differential, and special wheels and tires. The Sierra Denali adds its own styling details and plush features like Bose audio and ventilated front seats, plus a standard V-8 engine. It also gets Magnetic Ride Control suspension for this year.

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January 16, 2016
2015 GMC Sierra 1500 4WD Double Cab 143.5"

One sharp sweet truck with head turning looks and performance.

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So in early August 2015 my 16 year old son and I went out and test drove the new 2015 Sierra SLE double cab. As we drove out of the dealer parking lot we spotted a stone blue 1500 SLE Z71 at the front of the... + More »
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October 17, 2015
2015 GMC Sierra 1500 4WD Double Cab 143.5" SLE

best one yet

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smoother ride quieter easy handling and better gas mileage lots of passing power ....
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July 16, 2015
2015 GMC Sierra 1500 4WD Regular Cab 133.0" SLE

Best yet , solid truck

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Went from a 2013 Silverado to a 2015 Sierra SLT. I love the look and feel . The interior has plenty of well thought out space and a solid feel. Would like to see mileage improve on trucks in general. Offering... + More »
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April 22, 2015
2015 GMC Sierra 1500 4WD Double Cab 143.5"

like the standard updates

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Enjoy ride and handling. Always been a Chevy man, like looks and equipment availability on the GMC. Big improvements over 2007 to 2013 models. I did test drive a ford and ram . when I test drove the 2015 GMC ... + More »
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March 8, 2015
For 2015 GMC Sierra 1500

excessive weather

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Had embarrassing experiences twice this winter with less than six inches of snow on the road. Slid into snow banks and had to be pulled out by another truck! The tires suck! Traded after only 10 months! Will... + More »
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January 30, 2016
2016 GMC Sierra 1500 4WD Crew Cab 153.0" SLT

Very Nice truck, I really like the front end.

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It's been a while since I had a new truck. I own a 2006 3500 Diesel loaded, but I needed a everyday truck to drive to work and the puddle jumper I had was close to 200,000 mile so I wanted to step up to a... + More »
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December 9, 2016
2014 GMC Sierra 1500 4WD Crew Cab 153.0" SLT

Great Truck so far

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This truck is the All Terrain model. Has great features for the price. So far I have had very little issues. On shock failed not long after I purchased and was replaced under warranty. Transmission does to a... + More »
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September 29, 2015
2012 GMC Sierra 1500 2WD Crew Cab 143.5" Denali

I love my truck!

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No problems at all with it . I bought it brand new off the lot 3 1/2 yrs ago! Still feels like the day we drove it off the lot !! It's a great truck and very dependable! My previous truck was a chevy Silverado... + More »
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March 21, 2016
2011 GMC Sierra 1500 4WD Ext Cab 143.5" Work Truck

Worst GMC I ever purchased

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Out of nine GMC Sierra's I've owned in my lifetime, this one is by far the poorest built. Since I purchased it new it's been back for five major warranty issues, the last being the transmission as this unit... + More »
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April 14, 2015
For 2009 GMC Sierra 1500

great truck

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I own a 2009 GMC Sierra Nevada edition and I couldn't be happier with my truck. What stands out the most is the very impressive fuel economy. I owned a 98 gmc Jimmy previous to my sierra and gas wasn't bad but... + More »
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