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The 2018 Yukon XL is less reliable than other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2018 GMC Yukon XL owners. The owner comments describe problems respondents experienced with this vehicle.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
"trans failed would'nt go above 20mph due to major trans failure"
Anonymous, IL (2018 GMC Yukon XL SLT 5.3-L V8)"Transmission replaced due to only working in reverse and 1st gear."
Anonymous, GA (2018 GMC Yukon XL Denali 6.2-L V8)Cruise control, clock, warning lights, body control module, keyless entry, wiper motor or washer, tire pressure monitor, interior or exterior lights, horn, gauges, 12V power plug, USB ports, alarm or security system, remote engine start, heated or cooled seats, heated steering wheel, headlights, automatic headlights, automatic wipers, wireless charging pad.
"The safe mode lowers the engine to unsafe speeds. It took 5 trips to mechanic and replacement of all the parts to get it to stop. I also hate the reduced cylinders at stop lights. This beast is heavy and needs the power to move."
Anonymous, GA (2018 GMC Yukon XL Denali 6.2-L V8)Windows, locks and latches, doors or sliding doors, tailgate, trunk or hatch, mirrors, seat controls (power or manual), seat belts, sunroof, convertible top, glass defect.
"it is leaking."
Anonymous, GA (2018 GMC Yukon XL Denali 6.2-L V8)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Alternator, starter, hybrid battery replacement, hybrid battery related systems, regular battery, battery cables, engine harness, coil, ignition switch, electronic ignition, spark plugs and wires failure, auto stop/start.
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
Shocks or struts, ball joints, tie rods, wheel bearings, alignment, steering linkage (includes rack and pinion), power steering (pumps and hoses, leaks), wheel balance, springs or torsion bars, bushings, electronic or air suspension.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
""torque converter shredded due to overheating causing cooler + lines + trans to fail. trans thermostat opens 194 degrees, too hot... GM new service bulletin calls for new TBV allowing thermostat if needed (doesn't call out to open approx 158 degrees so the trans won't be cooked)""
Anonymous, IL (2018 GMC Yukon XL SLT 5.3-L V8)