The 2015 GMC Canyon is a competent midsize truck, but the 2.8L Duramax diesel suffers from catastrophic piston-cracking failures while the 3.6L V6 is generally more reliable. Transmission oil cooler leaks and power steering issues are common across both powertrains.
2.8L Duramax Piston Cracking and Catastrophic Engine Failure
Common · high severity
Typical onset: 80,000-150,000 mi
Symptoms: Severe knocking or rattling from engine, Metal shavings in oil, Loss of compression in one or more cylinders, White or blue smoke from exhaust, Check engine light with misfire codes
Fix: Pistons crack at the wrist pin area, sending debris through the engine and destroying bearings, crank, and often requiring complete short block replacement. This is a known weakness in early 2.8L Duramax engines. Repair requires 20-30 hours labor for engine removal, disassembly, and rebuild or replacement. Many owners opt for GM reman long blocks.
Estimated cost: $8,000-15,000
Transmission Oil Cooler Line Leaks
Common · medium severity
Typical onset: 60,000-100,000 mi
Symptoms: Transmission fluid puddles under vehicle, Low transmission fluid warnings, Burnt transmission fluid smell, Slipping or delayed shifts if fluid level drops significantly
Fix: The quick-connect fittings on the transmission cooler lines corrode and leak, or the lines themselves develop pinholes from road salt and debris. Often both feed and return lines need replacement at the same time. 2-3 hours labor to access, drain fluid, replace lines, and refill with proper Dexron VI.
Estimated cost: $400-700
Electric Power Steering Assist Failure
Occasional · high severity
Typical onset: 40,000-90,000 mi
Symptoms: Sudden loss of power steering assist, Service power steering message on dash, Heavy steering effort especially at low speeds, Intermittent assist coming and going
Fix: The electric power steering motor or control module fails, often without warning. This is covered by NHTSA recalls for some VINs, but many trucks fall outside recall parameters. Replacement involves 3-4 hours labor for steering column removal and module replacement. GM issued TSBs but many owners still experience failures.
Estimated cost: $800-1,500
Transmission Mount Collapse
Common · low severity
Typical onset: 50,000-80,000 mi
Symptoms: Clunking when shifting from park to drive or reverse, Excessive drivetrain movement visible when accelerating hard, Vibration at idle in gear, Harsh engagement when coming to stops
Fix: The rear transmission mount deteriorates prematurely, especially on trucks used for towing or heavy loads. The rubber isolator tears and the hydraulic damping fails. Replacement requires supporting the transmission and removing crossmember hardware. 1.5-2 hours labor for rear mount, often worth doing front mount simultaneously.
Estimated cost: $250-450
Diesel Fuel Filter Housing Leaks (2.8L Duramax)
Occasional · medium severity
Typical onset: 70,000-120,000 mi
Symptoms: Fuel smell around engine bay, Visible diesel fuel seeping from filter housing, Hard starting when cold, Fuel economy drops, Air ingestion causing rough running
Fix: The plastic fuel filter housing develops cracks or the seals fail, allowing fuel to leak and air to enter the system. The water separator drain valve also commonly leaks. Replacement involves draining the system, replacing the entire housing assembly, priming, and bleeding air. 2-3 hours labor including proper bleeding procedure.
Estimated cost: $400-650
Front Brake Caliper Slide Pin Seizing
Occasional · medium severity
Typical onset: 40,000-70,000 mi
Symptoms: Uneven brake pad wear, Pulling to one side when braking, Dragging brake causing wheel heat, Reduced fuel economy, Grinding or squealing from one front wheel
Fix: The front caliper slide pins corrode and seize in their bores, causing uneven pad contact and premature wear. This is accelerated in salt-belt regions. Repair requires caliper removal, pin extraction, bore cleaning, new pins/boots, and often new pads. If caught early, remanufactured calipers not needed. 1.5-2 hours per side.
Estimated cost: $300-550
Owner tips
If shopping for diesel, thoroughly inspect service records for piston replacement or oil analysis reports—many 2.8L Duramax engines have already been rebuilt under warranty or customer expense
Change transmission fluid at 50k intervals with proper Dexron VI to protect cooler lines and valve body—GM says lifetime fill but real-world proves otherwise
Inspect transmission cooler lines and power steering components annually, especially in rust-belt states—catching leaks early prevents expensive secondary damage
For diesel models, replace fuel filter every 15,000 miles and use quality fuel with lubricity additives to protect the CP4.2 injection pump
Buy the 3.6L V6 version if you must have a Canyon—the 2.8L Duramax is a grenade with the pin pulled, and catastrophic piston failures make it a poor long-term investment despite good fuel economy when running.
AI-assisted summary drawn from NHTSA recall data, our labor-times database, and platform knowledge. Not a substitute for a pre-purchase inspection on a specific vehicle.
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General Motors, LLC (GM) is recalling certain 2015 Chevrolet Colorado and GMC Canyon vehicles. The power steering assist may be lost due to a poor electrical connection within the steering gear assembly.
Consequence: A loss of power steering, particularly at lower speeds increases the risk of a crash.
Remedy: GM will notify owners, and dealers will replace steering gear torque sensor cover assembly, free of charge. Owner notification letters were mailed August 6, 2021. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC customer service at 1-800-462-8782. GM's number for this recall is N202325410.
General Motors LLC (GM) is recalling certain 2015-2018 GMC Canyon, 2016-2017 Buick Envision, 2016-2018 Chevrolet Colorado and Malibu, 2017-2018 GMC Acadia, 2018 Buick LaCrosse, Cadillac ATS, Chevrolet Equinox, and GMC Terrain vehicles. The high pressure fuel pump may detach from its mounting flange, possibly resulting in the pump damaging the high pressure fuel line.
Consequence: A damaged fuel line can create a fuel leak, increasing the risk of a fire.
Remedy: GM will notify owners, and dealers will replace the high pressure fuel pump, and high pressure fuel pipe, free of charge. The recall began July 2, 2018. Owners may contact Buick customer service at 1-800-521-7300, Cadillac customer service at 1-800-458-8006, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is 18188.
AIR BAGS:FRONTAL · 17V621000
2017-10-05
General Motors LLC (GM) is recalling certain 2015-2016 GMC Canyon and Chevrolet Colorado, and 2016 Chevrolet Volt vehicles. The driver's frontal air bag may improperly inflate during second-stage deployment in the event of a high speed crash.
Consequence: An improperly inflated air bag increases the risk of injury in a crash.
Remedy: GM will notify owners, and dealers will replace the driver's frontal air bag module, free of charge. The recall began November 8, 2017. 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 17387.
STEERING:ELECTRIC POWER ASSIST SYSTEM · 16V054000
2016-02-01
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Colorado vehicles manufactured January 6, 2015, to March 17, 2015, and 2015 GMC Canyon vehicles manufactured January 6, 2015, to March 19, 2015. A poor electrical connection within the steering gear connector may cause a loss of power steering assist.
Consequence: A loss or reduction in power steering assist may increase the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the steering gear torque sensor cover assembly, free of charge. The recall began March 1, 2016. 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 15595.
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER · 15V278000
2015-05-12
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Colorado, and GMC Canyon trucks manufactured January 6, 2014, to December 24, 2014. The affected vehicles may experience the front brake calipers leaking brake fluid. This is due to air pockets, an imperfection in the metal caliper body.
Consequence: If the vehicle experiences a brake fluid leak it can increase the stopping distance, increasing the risk of a vehicle crash.
Remedy: GM will notify owners, and dealers will inspect and replace the front-brake calipers if necessary, free of charge. The recall began June 9, 2015. 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 14888.
SEATS · 15V267000
2015-05-08
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Colorado and GMC Canyon trucks manufactured January 6, 2014, to April 1, 2015. In the affected vehicles, the hooks that secure the driver's and/or front passenger's seat frame may not have been properly attached to the vehicle body during assembly. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 207, "Seating Systems."
Consequence: If the seat-frame attachment hooks are not secured properly, the seat may not be adequately anchored to the vehicle, and in the event of a crash, the seat occupant could be at an increased risk of an injury.
Remedy: GM will notify owners, and dealers will inspect the seats, correcting their installation as necessary, free of charge. The recall began on June 2, 2015. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service 1-800-462-8782. GM's number for this recall is 15150.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE · 15V157000
2015-03-18
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Colorado vehicles manufactured September 15, 2014, to January 21, 2015, and 2015 GMC Canyon vehicles manufactured October 3, 2014, to December 9, 2014. The affected vehicles have a front driver air bag inflator that may be misaligned to the air bag module backplate. This can cause the inflator to separate from the backplate during a deployment.
Consequence: If the inflator separates from the back plate in the event of a crash necessitating deployment of the driver's frontal air bag, this may cause the air bag or steering wheel components to separate and be propelled into the interior compartment, potentially seriously injuring the driver or other occupants. Additionally, the air bag may fail to properly inflate, increasing the risk of injury to the driver.
Remedy: GM has notified owners, and dealers will inspect the driver air bag module inflator for proper alignment, replacing the air bag, as necessary, free of charge. The recall began March 19, 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 15037.
AIR BAGS · 14V645000
2014-10-09
General Motors LLC (GM) is recalling certain model year 2015 Chevrolet Colorado and GMC Canyon vehicles manufactured January 6, 2014, to October 1, 2014. In the affected vehicles, the driver air bag connections may have been wired incorrectly. This could reverse the deployment sequence and disrupt the deployment timing of the driver air bag. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard No. 208, "Occupant Crash Protection."
Consequence: If the driver air bag does not deploy as designed, there is an increased risk of driver injury in the event of a crash necessitating air bag deployment.
Remedy: GM will notify owners, and dealers will reprogram the inflatable restraint sensing and diagnostic module (SDM), free of charge. The recall began on October 6, 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 14690.
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