2017 Mazda CX-9 problems

“this is covered under csp11. the problem is my car is a 2017 and they only allow a warranty up to 120,000 miles mine is at 158000 and they will not fix the problem now even thought we just started having problems.”

“Engine running rough. Check Engine Light illumination. Difficulty starting or a no-start condition. Noticeable loss of power during acceleration Check engine light P0192”

“I was driving the vehicle on the highway when the vehicle started to overheat, lights started blinking, the car was smoking, losing power and acceleration. This car has a recall on the cyclindwr head which when cracks causing the car to loose coolant and oil. If it cracks while you’re driving especially on the highway the car will immediately loose coolant and oil thus causing a very dangerous driving condition. There was no indicator prior to the failure that there was anything wrong with the car. No check engine lights, no coolant lights nothing. Prior to this happening I smelled coolant in the car cabin , took it to my mechanic who tested the coolant system and found no leak. At the time he was unaware of the known issue these cars have with the cylinder head. The problem has been confirmed by Mazda and they notified me within the month of March of the problem and the extended warranty to replace the known manufacturer defect cylinder head. The Mazda dealer now has my car and acknowledges the cracked cylinder head caused the problem but said because I didn’t immediately stop on the highway and kept driving until I got to a safe location I was negligent and…”

“I purchased this vehicle with 19K miles on July 31, 2020. I noticed on April 12, 2022, that there was a knocking noise coming from the left front suspension after leaving a Mazda dealership for an oil change. I called Mazda service and was told they only did an oil change. I have put 4 brand new tires and have replaced the front/back brakes, rotors and still hear noise going over uneven pavement. I brought it to my own mechanic twice and he hears the noise but informed me that he cannot order any suspension parts at all for Mazda CX9. He said Mazda are forcing Mazda customers to go to a Mazda dealership. He called 5 different places to purchase strut. suspension and was told they had none. He also said Mazda has a special wrench to work with having to do with suspension and he cannot get one. My mechanic had my vehicle for 3 days and said it's definitely a suspension issue. My Mazda only has 35K miles. In 2 years, I have only driven 16K (8K) per year. There is no way a suspension should go after only 35K miles. I am not off roading or abusing the vehicle. Can't NHSTA assist with this issue? This is very serious. I am afraid to drive this Mazda now.”

“The car was jump start due to a bad battery it cold and the light was left on. Right after the jump start a check engine light can on. When I put the vehicle in drive to turn the steering wheel it violently snapped bad and broken one of my finger nail. I tried aging in disbelief it happened aging this shouldn't be happening it could've broke my fingers.”

“My vehicle has several issues related to a water pump failure in which the check engine light did not remain on. The vehicle began to over heat and slow down on the highway/ roads despite having my foot on the gas. My vehicle is now at Heritage Mazda Catonsville and unable to be read by the OBD reader which may be related to a weak wiring harness reported by other owners of the CX9. It also my be why my check engine light is not on despite having an engine issue. Many others have reported a failed water pump which caused cracks in the head which causes the car to over heat and slow down without notice. Despite having thousands of customers with this issue Mazda has yet to issue a recall.”