2015 GMC Sierra
Vehicle Specs & Maintenance Data
The 2015 GMC Sierra maintenance specs on this page cover the key fluids, torque values, and wear items you need for routine service. Use these numbers as a quick reference when performing oil changes, tire rotations, brake jobs, and other scheduled maintenance on your GMC Sierra.
For oil changes, the 2015 GMC Sierra takes 0W-20 Full Synthetic motor oil with a capacity of 8 quarts. Brake fluid type is DOT 3, the recommended coolant is Dex-Cool (OAT), and transmission fluid is Dexron VI. Always use the manufacturer-recommended fluids to maintain warranty coverage and engine longevity.
When mounting wheels on the GMC Sierra, torque the lug nuts to 140 ft-lbs using a calibrated torque wrench. Over- or under-torquing can lead to warped brake rotors or loose wheels. Re-torque after 50 to 100 miles on newly installed wheels.
There are 6 NHTSA safety recalls on file for the 2015 GMC Sierra. Check the Recalls tab below for full details.
Specifications on this page are compiled from multiple publicly available sources including manufacturer documentation, NHTSA data, and automotive databases. Always cross-reference with your owner's manual or official factory documentation before purchasing parts or performing any service.
The 2015 GMC Sierra uses 0W-20 Full Synthetic motor oil (8 qt capacity), requires lug nuts torqued to 140 ft-lbs, takes DOT 3 brake fluid.
Enter a diagnostic trouble code to see causes, symptoms, and fixes for the 2015 GMC Sierra.
No known problems reported for this vehicle yet.
6 NHTSA safety recalls for the 2015 GMC Sierra. Check your VIN at NHTSA.gov
ELECTRICAL SYSTEM:IGNITION
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra trucks manufactured January 24, 2014, to February 26, 2014, 2015 Chevrolet Suburban vehicles manufactured February 12, 2014 and Chevrolet Tahoe vehicles manufactured February 6, 2014, to February 13, 2014. In the affected vehicles, the ignition lock actuator may bind, making turning the key difficult or causing the ignition to get stuck in the "Start" position.
If stuck in the "Start" position, the ignition may suddenly snap back into the "Accessory" position, causing a loss of engine, steering, and braking power, increasing the risk of a vehicle crash. If the vehicle is in a crash, the air bags may not deploy, increasing the risk of occupant injury.
GM will notify owners, and dealers will replace the ignition lock housing, free of charge. The recall began on November 20, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is 15573.
POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Silverado 1500, and GMC Sierra 1500 vehicles manufactured November 24, 2014, to November 25, 2014. Due to an improper heat-treatment, the rear axle shaft may fracture while the vehicle is being driven.
If the rear axle shaft fractures, the rear wheel may separate from the axle shaft, increasing the risk of a crash.
GM will notify owners, and dealers will inspect the rear axles, and replace any that were improperly heat-treated, free of charge. The recall began on December 17,2014. Owners may contact GM customer service at 1-800-222-1020 (Chevrolet) or 1-800-462-8782 (GMC). GM's number for this recall is 14892.
STEERING:ELECTRIC POWER ASSIST SYSTEM
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Silverado, Suburban, Tahoe, GMC Sierra, and Yukon XL vehicles, equipped with electric power steering (EPS). Due to a problem with the EPS module, the affected vehicles may experience a sudden loss of power steering assist during vehicle operation.
An unexpected loss of power steering increases the risk of a crash.
GM will notify owners, and dealers will replace the power steering assist motor kit, free of charge. The recall began on November 17, 2014. Owners may contact GM customer service at 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14743.
SEATS
General Motors LLC (GM) is recalling certain model year 2013-2014 Buick Encore and Cadillac ATS; 2014 Cadillac CTS, ELR, Chevrolet Caprice and SS vehicles; and 2014-2015 Chevrolet Silverado and GMC Sierra Trucks. Due to an incomplete weld on the seat hook bracket assembly, the front seats in the affected vehicles may not stay secured in place during a high load condition such as a crash.
A seat that does not stay secured increases the risk of occupant injury in a vehicle crash.
GM will notify owners, and dealers will inspect the seat hook bracket assembly weld and replace the lower seat track, as necessary, free of charge. The recall began on August 15, 2014. Owners may contact GM customer service at 1-800-521-7300 (Buick), 1-800-458-8006 (Cadillac), 1-800-222-1020 (Chevrolet), and 1-800-462-8782 (GMC). GM's number for this recall is 14340.
POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE)
General Motors LLC (GM) is recalling certain model year 2014-2015 Chevrolet Silverado and GMC Sierra vehicles, and model year 2015 GMC Yukon and Chevrolet Suburban and Tahoe vehicles. In the affected vehicles, an electrical signal short may cause the transfer case to shift to neutral without the driver's input.
If the transfer case switches to neutral while the vehicle is parked and the parking brake is not in use, the vehicle may roll away increasing the risk of injury to bystanders. If the transfer case switches to neutral while the vehicle is being driven, the vehicle would lose drive power, increasing the risk of a crash.
GM will notify owners, and dealers will re-program the software in the transfer case control module, free of charge. The recall began in early August 2014. Owners may contact General Motors customer service at 1-800-222-1020 (Chevrolet), or 1-800-462-8782 (GMC). GM's number for this recall is 14192.
ENGINE AND ENGINE COOLING:EXHAUST SYSTEM
General Motors is recalling certain 2014 model year Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles, and 2015 model year Cadillac Escalade and Escalade ESV; Chevrolet Silverado HD; and GMC Sierra HD, Yukon, and Yukon XL, equipped with a 4.3L engine or 5.3L engine.
The overheated exhaust components may melt nearby plastic parts and may result in an engine fire.
General Motors will notify owners, and dealers will reprogram the engine control module, free of charge. The recall began on January 16, 2014. Owners may contact Chevrolet at 1-800-222-1020 and GMC at 1-800-462-8782. General Motors' number for this recall is 14008.