2010 Mazda Cx9 problems, complaints & recalls
Most-reported problem areas: Service Brakes (14) · Engine (6) · Air Bags (5)
🛣️ Complaints by mileage
24 NHTSA complaints that reported an odometer reading.
Safety recalls (0)
No recalls on record for this model year (campaigns announced since 2010).
Service bulletins (279)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Electrical System 2026-09-11 · SA-041-26a · Service Bulletin/Repair Instructions
description if you encounter any type of electrical concern (e.g, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal mgss diagnosis by asking if any aftermarket devices have been installed. aftermarket devices may be the cause of the electrical con
Unknown Or Other 2026-08-20 · SA-055-26 · Service Bulletin/Repair Instructions
product quality information (pqi) description service information mt-041/12 is no longer valid. it has been unpublished and superseded by the field quality information report (fqir) reporting system.
Engine 2026-06-19 · SA-041-26 · Service Bulletin/Repair Instructions
this sa supersedes the previously issued sa(s) listed below. the changes are noted in red. sa-061/25 12/17/25 description if you encounter any type of electrical concern (e.g, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal mgss diagnosis by ask
Unknown Or Other 2026-04-21 · SA-029-26 · Service Bulletin/Repair Instructions
this service alert supersedes the previously issued sa listed below: the changes are noted in red. sa-011/24 02/12/24, 06/06/24, 07/29/24 description mazda has developed factory recommended scheduled maintenance services that support all major vehicle systems. mazda recommends dealers follow the sch
Electrical System 2025-12-17 · SA-061-25 · Service Bulletin/Repair Instructions
if you encounter any type of electrical concern (e.g, dead battery, engine no start, dtc(s) stored...), interview the customer before proceeding with normal mgss diagnosis by asking if any aftermarket devices have been installed. aftermarket devices may be the cause of the electrical concern. below
Unknown Or Other 2025-12-10 · 07-004-25a · Service Bulletin/Repair Instructions
a musty/mildew type odor may come from the vents when the air conditioning (a/c) system is operating. it is most noticeable when the a/c is first turned on. this odor is the result of mold growth in the a/c evaporator/cooling unit which is caused by condensation, dust, and pollen within the cooling
Showing the 6 most recent of 279 bulletins. Search all of them free at nhtsa.gov.
What owners report
2020-05-14 · Engine · 108,000 mi“tl* the contact owns a 2010 mazda cx9. the contact stated that while their son was driving approximately 30 mph, the vehicle stalled without any warning. the vehicle was taken to an independent mechanic to be diagnosed. the contact was informed that the water pump failed causing coolant to mix with the engine oil and damaged the engine. the contact…”
2019-06-22 · Service Brakes · 100,000 mi“brake booster went out. almost causing an accident because the brakes went stiff. i absolutely can not believe this isn't a recall. i guess it takes a serious injury or lawsuit to become a lawsuit. i was told by mechanic ti have to have repairs at dealer. dealer is impossible to get a hold of for an appointment. i told them needs to be fixed asap …”
2019-06-12 · Service Brakes · 77,700 mi“as noted by many on this site, i experienced a scary brake booster failure. complete loss of powered brakes which put my whole family in danger. this is a family car and i have small children so this is appalling that mazda would not issue a recall for this problem. i see that there was a tsb and associated extended warranty period for this issu…”
2019-05-24 · Service Brakes · 65,000 mi“after owning the vehicle from the dealership that i bought it from the power booster braking system is having malfunctions i own the vehicle for 8 months looking into recalls on this vehicle it shows that they were doing recalls on this system for this car approximately 4 years ago and now i bought the car and they're saying that is out of the exte…”
2019-01-18 · Engine · 110,000 mi“on jan 12, 2019 we were driving home and without warning the temperature gauge spiked and the check engine light came on. the engine stopped and i was able to get the vehicle off the road. i looked to see the coolant reservoir was empty. i was able to refill it, thinking possibly there was a leak. it got us home safely. the next day, enroute t…”
2018-12-19 · Air Bags“tl* takata recall. the contact owns a 2010 mazda cx-9. the contact received notification of nhtsa campaign number: 18v717000 (air bags). the manufacturer stated that the part was not available and did not know when it would arrive. the dealer was not contacted. the contact had not experienced a failure. parts distribution disconnect. *tt consumer …”
2018-09-26 · Power Train · 145,000 mi“i was driving my 2010 mazda cx9 when a loud bang happened. i was on a side road and stopped immediately, i could not visibly see any issues. i began to drive slowly and with every rotation the noise continued. luckily i was next a a garage and they determined it with the power transfer unit (case). they had told me this is a very common issue and…”
2018-09-26 · Service Brakes · 89,700 mi“brake booster failed at 90k miles. pedal is extremely hard to push and has little brake force. along with a loud hissing noise from brakes. mazda said it was part their special service warranty and would charge full rate to fix.…”
2018-07-22 · Engine · 108,000 mi“car was always serviced regularly. one day i was about to get on a busy highway into boston just before rush hour, when my car suddenly made a loud knocking noise in the engine. i immediately pulled over and then the car shut off. no lights ever came on beforehand and no leaking of fluids ever happened before incident. had it towed to mazda dea…”
2018-04-01 · Engine · 106,000 mi“the engine completely lost power. timing chain failure in downtown area / traffic, causing failure of head gasket. warning and immediate failure when in motion in busy downtown midday traffic.…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.