2023 GMC CANYON

Typical onset: 15,000-60,000 mi

Symptoms: Sudden severe knocking or rattling from engine bay, Loss of oil pressure warning, Metal shavings in oil during routine changes, Engine seizure or no-start after warning signs

Fix: Complete engine replacement or rebuild required. We're seeing spun rod bearings, damaged pistons, and scored crankshafts. If caught early with bearing noise, you might save it with bearing replacement (12-16 hrs labor), but most cases need short block or complete engine swap (18-24 hrs). GM has issued extended warranty coverage on some VINs, but many owners are fighting for coverage. Root cause appears to be oil delivery issues under high load or inadequate bearing clearances from factory.

Estimated cost: $8,000-15,000

Typical onset: 20,000-50,000 mi

Symptoms: Transmission fluid pooling under vehicle, Burnt transmission fluid smell, Harsh shifting or slipping after fluid loss, Transmission overheating warning on dash

Fix: The 8-speed auto has premature oil cooler line failures and cooler leaks. Lines crack at crimp points or cooler develops pinhole leaks. Requires dropping lines, replacing cooler if contaminated (6-8 hrs labor), and full fluid flush. If you catch it before running low on fluid, just lines and cooler. If you drive it low, expect internal transmission damage requiring rebuild or replacement.

Estimated cost: $1,200-2,800

Typical onset: 30,000-70,000 mi

Symptoms: Excessive vibration during acceleration, Clunking when shifting from park to drive, Visible separation or tearing of rubber mount, Drivetrain movement felt through cabin

Fix: The transmission mount tears or separates prematurely, especially on trucks used for towing or heavy acceleration. Replacement is straightforward (2-3 hrs) but requires supporting the transmission. Use OEM or heavy-duty aftermarket mounts if you tow regularly. Inspect all motor mounts while you're under there, as they often fail together.

Estimated cost: $350-650

Symptoms: Lane-keep assist randomly disengages, Forward collision warning false alerts, Adaptive cruise control unavailable message, Check camera system warning on dash

Fix: Related to NHTSA recall for ADAS camera/sensor issues. Windshield-mounted camera fails due to software glitches or moisture intrusion. Dealer recalibration or camera replacement required (1.5-2 hrs if just software, 3-4 hrs if hardware). Must be done at dealer for software access and calibration equipment. Some units need complete module replacement.

Estimated cost: $400-1,200

Symptoms: Wheel wobble or looseness, Clicking or popping from wheel area, Visible stud breakage during inspection, Wheel came loose or detached

Fix: NHTSA recall for wheel lug/stud failures. Studs can break due to manufacturing defect or improper torque from factory. If you have loose or broken studs, all studs on affected wheel(s) should be replaced and proper torque procedure followed (1-2 hrs per wheel for stud replacement if hub doesn't need machining). Check recall status by VIN immediately and inspect torque on all wheels regularly.

Estimated cost: $200-500

Typical onset: 40,000-80,000 mi

Symptoms: Loss of power under acceleration, Engine stumbling or hesitation, Hard starting when fuel tank below half, Check engine light with lean fuel codes

Fix: In-tank fuel filter clogs earlier than expected, likely due to fuel quality issues or tank contamination from manufacturing. Requires dropping fuel tank to access filter assembly (3-4 hrs labor). Some techs report finding debris in new tanks. Replace filter and inspect tank for rust or contamination. Consider fuel system cleaning treatment during service.

Estimated cost: $600-1,000