What is the 2015-2025 GMC Canyon Active Fuel Management (AFM) Lifter Failure (V6)?

The 3.6L V6 with Active Fuel Management experiences lifter failure where the AFM lifters collapse, causing misfires and a ticking noise. The collapsing lifter can damage the camshaft lobe if not addressed. Repairs typically run $800-$2,500. Severity: high.

What is the 2015 GMC Canyon Front Brake Caliper Brake Fluid Leak (Recall 15V278000)?

Certain 2015 Canyons built January 6, 2014 to December 24, 2014 have front brake calipers that can leak brake fluid due to air pockets/porosity (a casting imperfection) in the caliper body. A fluid leak reduces braking ability and increases stopping distance, raising crash risk. Severity: high.

What is the 2015 GMC Canyon Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690)?

Certain 2015 Canyons (built Oct 3 to Dec 9, 2014) have a front driver airbag inflator that may be misaligned to the airbag module backplate, allowing the inflator to separate from the backplate during deployment and increasing injury risk in a crash. The remedy reprograms the inf… Severity: high.

What is the 2016-2025 GMC Canyon 2.8L Duramax DEF System Faults and DPF Regeneration Issues?

The 2016+ Canyon Duramax 2.8L LWN diesel uses DEF (Diesel Exhaust Fluid) injection and a DPF (Diesel Particulate Filter) as part of its SCR emissions system. Owners frequently report DEF quality/level sensor faults, DPF regeneration failures in stop-and-go use, DEF pump failures,… Repairs typically run $200-$3,500. Severity: medium.

What is the 2015-2022 GMC Canyon P0420/P0430 Catalytic Converter Efficiency Failure (3.6L V6)?

On the 3.6L V6 (LGZ) Canyon, the catalytic converters lose efficiency and trigger P0420 (Bank 1) and/or P0430 (Bank 2), often a downstream consequence of the engine's PCV-related oil consumption that contaminates the converter substrate and O2 sensors. Both converters can fail ar… Severity: medium.

What is the 2023-2024 GMC Canyon 2024 Headlight Flicker (24V673) and 2023-2024 Seat Belt Buckle Bolt Recalls (2nd-Gen Canyon)?

The redesigned 2nd-gen Canyon has documented early-build recalls. 2024 trucks can have headlights that flicker while driving and in park (NHTSA 24V673000; dealers replace a headlight module). Separately, certain 2023 Canyon (and 2023-2024 Chevrolet Colorado) trucks can have a lef… Severity: medium.

What is the 2015-2022 GMC Canyon 3.6L V6 (LGZ) Excessive Oil Consumption from Clogged PCV Orifice?

The 3.6L V6 lacks a serviceable PCV valve and instead uses a fixed PCV orifice and drain-back baffle molded into a valve cover. The orifice and baffle drain hole sludge up and clog, pulling oil into the intake and causing excessive oil consumption (owners report ~1 qt per 1,000 m… Severity: medium.

What is the 2015-2025 GMC Canyon Front Suspension Clunk and Stabilizer Bar End Link Failure?

The 2015+ Canyon experiences front end clunking and rattling over bumps and during steering inputs. The most common cause is worn front stabilizer bar end links, though lower control arm ball joints and upper strut mounts also contribute. The end links use a ball-and-socket desig… Repairs typically run $80-$800. Severity: low.

GMC · Known Issues

2015-2025 GMC Canyon Problems: 10 Issues Every Owner Should Know

2015-2025 model years · 1,360+ owner reports · Updated June 2026

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According to Au7o's analysis of 1,360+ owner reports, the 2015-2025 GMC Canyon has 10 documented known issues, with 5 rated critical. The most serious are 8L45 8-Speed Transmission Torque Converter Shudder ($150-$4,000 repair), Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054), Active Fuel Management (AFM) Lifter Failure (V6) ($800-$2,500 repair), Front Brake Caliper Brake Fluid Leak (Recall 15V278000) and Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690). The most commonly reported issue is Front Suspension Clunk and Stabilizer Bar End Link Failure with 510 owner reports. Across all issues with published estimates, repair costs range from $80 to $4,000. DIY maintenance guides at au7o.io.

Frequently Asked Questions

What are the most common GMC Canyon problems?

According to Au7o's analysis of 1,360+ owner reports, the 2015-2025 GMC Canyon has 10 documented issues. The most frequently reported are: 8L45 8-Speed Transmission Torque Converter Shudder, Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054), Active Fuel Management (AFM) Lifter Failure (V6). Of these, 5 are rated critical and should be addressed promptly.

Is the GMC Canyon reliable?

The 2015-2025 GMC Canyon has 10 known issues documented across 1,360+ owner reports. 5 issues are rated critical: 8L45 8-Speed Transmission Torque Converter Shudder and Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054) and Active Fuel Management (AFM) Lifter Failure (V6) and Front Brake Caliper Brake Fluid Leak (Recall 15V278000) and Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690). Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.

How much does it cost to fix common GMC Canyon problems?

Repair costs for known GMC Canyon issues range from $80 to $4,000, depending on the specific problem and whether you choose DIY or professional repair. The most critical issue, 8L45 8-Speed Transmission Torque Converter Shudder, typically costs $150-$4,000 to repair. Au7o provides step-by-step DIY maintenance guides that can help reduce repair costs.

What year GMC Canyon is the most reliable?

Reliability varies across model years of the GMC Canyon. Based on documented issues, problems are most commonly reported in earlier model years. Au7o recommends checking the specific known issues for your target year before purchasing, and having a pre-purchase inspection performed by a qualified mechanic. Our known issues database covers the 2015-2025 GMC Canyon with 10 documented issues documented across 1,360+ owner reports.

What is the 2015-2025 GMC Canyon 8L45 8-Speed Transmission Torque Converter Shudder?

The 2015+ Canyon with the 3.6L V6 uses the GM 8L45 8-speed automatic (smaller sibling of the 8L90 in full-size trucks) which suffers the same torque converter lock-up clutch shudder at light throttle between 25-50 mph. The clutch friction material degrades and contaminates the fl… Repairs typically run $150-$4,000. Severity: high.

All 10 Known Issues

Other GMC Models

Frequently Asked Questions

What are the most common GMC Canyon problems?

Is the GMC Canyon reliable?

How much does it cost to fix common GMC Canyon problems?

What year GMC Canyon is the most reliable?

What is the 2015-2025 GMC Canyon 8L45 8-Speed Transmission Torque Converter Shudder?

2015-2025 GMC Canyon: Active Fuel Management (AFM) Lifter Failure (V6)#

2016-2025 GMC Canyon: 2.8L Duramax DEF System Faults and DPF Regeneration Issues#

2015-2022 GMC Canyon: 3.6L V6 (LGZ) Excessive Oil Consumption from Clogged PCV Orifice#

2015-2025 GMC Canyon: 8L45 8-Speed Transmission Torque Converter Shudder#

2015 GMC Canyon: Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054)#

2015 GMC Canyon: Front Brake Caliper Brake Fluid Leak (Recall 15V278000)#

2015 GMC Canyon: Driver Airbag Inflator Misalignment / SDM Reprogram (Recall 14690)#

2015-2022 GMC Canyon: P0420/P0430 Catalytic Converter Efficiency Failure (3.6L V6)#

2023-2024 GMC Canyon: 2024 Headlight Flicker (24V673) and 2023-2024 Seat Belt Buckle Bolt Recalls (2nd-Gen Canyon)#

2015-2025 GMC Canyon: Front Suspension Clunk and Stabilizer Bar End Link Failure#

What is the 2015 GMC Canyon Power Steering Assist Loss from Corroded Steering Gear Connection (Recall 16V054)?