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The 2003 Sierra 1500 is less reliable than other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2003 GMC Sierra 1500 owners. The owner comments describe problems respondents experienced with this vehicle.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
"see other issue"
Anonymous, FL (2003 GMC Sierra 1500 SLE 4.7-L V8)"A rattling sound that feels like a loose component under the dash in the steering column"
Anonymous, (2003 GMC Sierra 1500 Unsure 5.3-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.
"Needed new left front wheel bearing and one tie rod."
Anonymous, WV (2003 GMC Sierra 1500 SLT 5.3-L V8)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.
"Needed new tie rod."
Anonymous, WV (2003 GMC Sierra 1500 SLT 5.3-L V8)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
"Former owner didn't disclose the problem. Found out a month after buying it when the engine started knocking from being out of oil!"
Anonymous, IL (2003 GMC Sierra 1500 Unsure 4.7-L V8)Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
"Caused state safety inspection failure."
Anonymous A., NC (2003 GMC Sierra 1500 Base 4.3-L V6)Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
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.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
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.
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.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
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.
"rusting in the middle of the windshield led to a leak that soaked the driver side carpet"
Anonymous, FL (2003 GMC Sierra 1500 SLE 4.7-L V8)