GMC Yukon XL Problems: 23 Issues Every Owner Should Know
2000-2024 model years Β· 1,670+ owner reports Β· Updated April 2026
According to Au7o's analysis of 1,670+ owner reports, the 2000-2024 GMC Yukon XL has 23 documented known issues, with 6 rated critical. The most serious are Brake Line Corrosion and Failure (GMT900 Platform) ($600-$2,000 repair), 6L80/6L90 Transmission Cooler Line Leak at Crimp/Fitting (Fluid Loss) ($250-$900 repair), Magnetic Ride Control (MRC) Shock/Strut Fluid Leak and 'Service Suspension System' Warnings ($900-$3,200 repair), Active Fuel Management (AFM) Lifter Failure and Tick ($1,500-$4,500 repair), Steering Column Lock Actuator Click and Binding ($300-$800 repair) and Front Hub Bearing and ABS Wheel Speed Sensor Corrosion Causing Unwanted ABS Activation ($180-$900 repair). The most commonly reported issue is Brake Line Corrosion and Failure (GMT900 Platform) with 420 owner reports. Across all issues, repair costs range from $50 to $4,500. DIY maintenance guides at au7o.io.