There are 3 owner-reported electrical system complaints for the 2007 Mazda CX-9in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
BACK IN 2011 (MY MAZDA CX-9 WAS ONLY 4 YO), I WAS DRIVING DOWN THE TURNPIKE AT 65 MPH WHEN MY CAR BEGAN TO STUTTER, IT WOULD NOT ACCELERATE AND IT CAME TO AN IDLE. THANKFULLY I WAS NEAR THE SHOULDER OF THE ROAD SO I WAS ABLE TO PULL OVER. SOUTH MOTORS MAZDA DEALERSHIP STATED THE COMPUTER (PCM) WAS FRIED. IT WAS REPLACED UNDER WARRANTY. CURRENT DAY: 2016. MY CAR BEGAN HAVING THE SAME SYMPTOMS LAST WEEK WHEN DRIVING 15 MPH IN A RESIDENTIAL AREA. MY CAR CURRENTLY HAS APPROXIMATELY 99,500 MILES. HAD MY CAR TOWED TO DEALERSHIP. OCEAN MAZDA STATED THE PCM AND 3 COILS ARE FRIED AGAIN. UPON READING CONSUMER REVIEWS ON 2007 MAZDA CX-9, IT SEEMS THIS IS A COMMON ISSUE. I AM LIVID THAT THIS ISSUE HAS NOT BEEN ADDRESSED AS A RECALL AS THERE IS OBVIOUSLY A DEFECT IN EITHER THE COILS MISFIRING OR MAZDA'S PCMS ARE DEFECTIVE. I WILL BE DISCUSSING THIS ISSUE WITH MY DEALERSHIP TODAY IN ATTEMPT TO NOT PAY OVER $1900 PARTS AND LABOR AS QUOTED BY OCEAN MAZDA.
TL* THE CONTACT OWNS A 2007 MAZDA CX9. WHILE DRIVING 55 MPH, A BURNING WIRE ODOR EMITTED IN AND OUTSIDE THE REAR OF THE VEHICLE. THE CONTACT NOTICED THAT THE REAR WINDSHIELD WIPER MOTOR WAS BURNING. THE CONTACT DISCONNECTED THE MOTOR FOR THE WINDSHIELD WIPERS. THE VEHICLE WAS NOT DIAGNOSED NOR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 180,000.
2007 MAZDA CX9 SHUT OFF WHILE DRIVING. CONSUMER STATES THAT DEALER TOLD HIM THE PROBLEM WAS A FUSE. CONSUMER ALSO WAS TOLD THAT THE COMPRESSOR FOR THE AIR CONDITIONER WAS NOT OPERATING CORRECTLY. *KB THE DEALER STATED THE MAIN IGNITION FUSE WAS BLOWN.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026