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The 2021 6 has about average reliability compared to other cars from the same model year.
The Reliability score is based on our latest subscriber survey of 2021 Mazda 6 owners. The owner comments describe problems respondents experienced with this vehicle.
Infotainment system (audio, GPS, phone), rear entertainment system, backup or other camera/sensors, head-up display.
"Display would randomly reboot while I was driving. Lost navigation and CarPlay until the car was turned off and restarted"
Anonymous, NC (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)Paint (fading, chalking, peeling, or cracking), loose interior or exterior trim or moldings, rust.
"rearview mirror was loose"
Anonymous, VA (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)"The red paint has more than normal stone chips especially in the front of the car. Love the car otherwise."
Anonymous, KY (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)Engine rebuild or replacement, cylinder head, head gasket, turbocharger or supercharger, timing chain or belt.
"Recall for valve seal leak"
Anonymous, FL (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)"The low oil light started coming on between oil changes. Mazda settled a class action lawsuit regarding defective valve stem seals leading to excessive oil use. Mazda replaced the valve stem seals for free under this settlement."
Anonymous A., LA (2021 Mazda 6 Carbon Edition 2.5-L 4 Cyl turbo)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.
"driver's seat cooling was not very cold"
Anonymous, VA (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)Muffler, pipes, catalytic converter, exhaust manifold, heat shields, leaks.
"Drivers side speaker is not working"
Anonymous, NY (2021 Mazda 6 Signature 2.5-L 4 Cyl turbo)Premature pad/rotor wear, pulsation or vibration, antilock system, parking brake, master cylinder, calipers, squeaking, brake failure, regenerative braking.
""At 40,000 my brake rotors created a significant vibration. Turns out they were warped and had to be replaced. Ive never had a vehicle that had warped rotors. Apparently this is a common problem with the horrible rotors that Mazda puts on the 6.""
Anonymous, MD (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)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.
Accessory belts and pulleys, engine computer, engine mounts, engine knock or ping, fuel leaks, oil leaks.
Squeaks, rattles, wind noises, seals and/or weather stripping, air and water leaks.
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.
AC compressor, blower (fan) motor, condenser, evaporator, heater system, automatic climate system, electrical failure, refrigerant leakage.
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.
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.
Sensors (O₂, or oxygen, sensor), emission-control devices (includes EGR), fuel-injection system, fuel gauge/sender, fuel pump, problems filling up the tank.
"Intermittent connectivity"
Anonymous, NC (2021 Mazda 6 Grand Touring 2.5-L 4 Cyl turbo)