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We expect the 2025 Sierra 1500 will be less reliable than the average new car. This prediction is based on data from 2022, 2023 and 2024 models.
The Reliability score is based on our latest subscriber survey of 2008 GMC Sierra 1500 owners. The owner comments describe problems respondents experienced with this vehicle.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"My husband has had brakes put on this truck at least three timemms in about 12 months and they still squeak when used."
Anonymous, (2008 GMC Sierra 1500)"Wheel wells are having rust issues."
Anonymous A., OH (2008 GMC Sierra 1500 SLE 6.0-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 RPM gauge, oil temperature gauge and battery level gauge have not worked since purchasing and the speedometer randomly, yet frequently, goes to zero while driving. Also, the dash lights randomly turn off."
Anonymous A., WI (2008 GMC Sierra 1500 SLT 4.3-L V6)"Headlight bulb burned out. Tried replacing with several new bulbs, will no longer function correctly. Unsure as to why."
Anonymous A., WI (2008 GMC Sierra 1500 SLT 4.3-L V6)Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
"Not really sure it's in the shop"
Anonymous, MO (2008 GMC Sierra 1500 SLT 5.3-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.
"Door locks started failing years ago. Last one failed this year."
Anonymous, (2008 GMC Sierra 1500 SLT 5.3-L V8)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
"Sudden loss of oil pressure"
Anonymous, AZ (2008 GMC Sierra 1500 SLE 5.3-L V8)Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
"Small area of bubbles at rear fender well. Indication of metal rusting under paint. Noticed one month ago. No give when pressing on bubble so not a major problem yet."
Anonymous, (2008 GMC Sierra 1500 SLT 5.3-L V8)Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
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.
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.
Driveshaft or axle, CV joint, differential, transfer case, four-wheel-drive/all-wheel-drive components, driveline vibration, electrical failure, traction control, electronic stability control.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
"The truck would not start. Replace alternator, wiring, inspected stearing column. Key still gets stuck and needs to be just right to turn & start."
Anonymous, MI (2008 GMC Sierra 1500 6.0-L V8)