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Chart based on 18 repair trips. The repair cost chart excludes repairs made under warranty, do-it-yourself repairs, and repair trips that include maintenance.
Needed to replace the ballast on the HID headlights.
108000 mi
A/C drain line became clogged. Used shop vac and attachment to suck out obstruction. Appears build up of water may have affected blower fan.
55000 mi
US $220
TCS system switch failed, and needed to be replaced.
79000 mi
US $100
Needed a relay replaced
61380 mi
C $200
Fuel tank sensor replaced. Was told by dealer that the sensor was "gummed up" by the coating used at Krown rustproofing. Have not yet gone back to Krown to ask them if possible.
63640 mi
C $400
TPMS replaced in one tire
80900 mi
US $735
new computer for locking system, module under the dash was bad
25000 mi
Accessory outlet - blown Fuse. Also light bulb driver side map light, took less than ten minutes to change.
84500 mi
US $1050
Leak, wouldn't hold AC coolant. Major repair, several hours to replace worn parts.
31800 mi
Seat heaters for both seats, recalled but mine had already failed.
34000 mi
US $70
Car would not start in the morning. I had thought something was draining the battery at night, but after taking the car to a dealer (they said the battery was fine), the second dealer replaced the battery.
93000 mi
US $180
TPMS sensor on the rear left wheel no longer working. The tire pressure light went on. When I took the tire pressure on the left rear wheel, the valve blew in, and the air pressure leaked.
107000 mi
US $200
4 external bulbs needed to be replaced
34500 mi
US $15
Replaced front/rear blower relay (part L1Y1-67-730) because AC/heater blower came on when taking key out of ignition.
See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. To see how
frequently 2010 Mazda CX-9 problems occur, check out our car reliability stats.