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We expect the 2025 TrailBlazer will be more reliable than the average new car. This prediction is based on data from 2023 model and the Chevrolet brand score.
The Reliability score is based on our latest subscriber survey of 2004 Chevrolet TrailBlazer owners. The owner comments describe problems respondents experienced with this vehicle.
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.
"Truck was really bouncy over rough road. It leaned in corners and had a loose feel in the steering."
Anonymous A., CO (2004 Chevrolet TrailBlazer LS 4.2-L 6 Cyl)Gear selector and linkage, transmission computer, transmission sensor or solenoid, clutch adjustment, rough shifting, slipping transmission, leaks.
"The transmission slips when you start moving from a dead stop. It started about two years ago in the winter, Chicago suburbs, when the transmission was cold. Once it warmed up it was okay. Over time it slipped a little more. It began slipping when the weather was warm but the transmission cold. Now it slips when starting from a stop even when it is warmed up. I was told it was a valve in the valve body that is now controlled electronically and it vibrates rapidly all the time. Overtime it wears out the walls around and this makes it slip. I was told there is no fix for it, it will get worse and eventually the transmission will have to be replaced."
Anonymous, IL (2004 Chevrolet TrailBlazer EXT 4.2-L 6 Cyl)AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
"clogged orifice"
Anonymous A., NJ (2004 Chevrolet TrailBlazer LT 4.2-L 6 Cyl)Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
"The fuel level sensor goes bad and isnt reliable to know how much fuel is left. It was replaced three times."
Anonymous, IL (2004 Chevrolet TrailBlazer EXT 4.2-L 6 Cyl)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.
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.
Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
Transmission rebuild or replacement, torque converter, premature clutch replacement.
Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
Radiator, cooling fan, water pump, thermostat, antifreeze leaks, overheating.
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.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
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"Ball joints wore out. Rubber was missing. Metal was showing."
Anonymous A., CO (2004 Chevrolet TrailBlazer LS 4.2-L 6 Cyl)