Transmission Minor
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
We expect the 2025 Sierra 2500HD will have about average reliability when compared to the average new car. This prediction is based on data from 2022 and 2024 models.
The Reliability score is based on our latest subscriber survey of 2015 GMC Sierra 2500HD owners. The owner comments describe problems respondents experienced with this vehicle.
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
"The rotors warped easily , very poor rotors"
Anonymous, BC (2015 GMC Sierra 2500HD SLT 6.0-L V8)Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
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.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water 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.
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.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
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.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
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.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"The automatic transmission does not shift well when towing our travel trailer up steep hills , it's a 3/4 ton and my trailer could be towed by a 1/2 ton so it's not overloaded"
Anonymous, BC (2015 GMC Sierra 2500HD SLT 6.0-L V8)