2018 Mazda CX-9

had loss of coolant mid to late January 2022, which lead to over heating notifications. Upon inspection at dealer (Pacifico Mazda Philadelphia PA), it was determined that i had a cracked cylinder head. Initially dealer said they were to replace just the cylinder head & after about 1 week they said that the engine would be replaced. Received car back 4/06/22

When I shifted into reverse the back up camera wouldn’t come on and instead a screen that said check your surroundings stayed on the screen. I reset it using the 3 button reset method and it came back on. Drove it to the grocery store, and then it sat in my driveway for 3 hours. When I went to go back in to town, the car was completely dead. No power whatsoever. We tried jumper cables and those didn’t work. Finally tried a battery charger and after an hour of charging it finally came back on. A car this new shouldn’t be having these issues.

HAPPENED TO ME TWO TIMES IN PAST THREE WEEKS, WHERE I AM COMING TO A STOP, OR HARDLY MOVING, AND CAR SUDDENLY ACCELERATES. HAD MY FOOT ON THE BRAKE AND THE CAR WAS STILL TRYING TO ACCELERATE. YESTERDAY, 4/24/21 IT TOOK ALL MY STRENGTH ON THE BRAKE TO KEEP THE CAR FROM PULLING INTO ONCOMING TRAFFIC. I HAVE BEEN DRIVING FOR 39 YEARS AND HAVE OWNED MANY CARS, AND SOMETHING LIKE THIS NEVER HAPPENED TO ME. I WILL BE BRING THE CAR DEALERSHIP TOMORROW, THE CAR HAS ONLY 10K MILES ON IT AS WE DON'T DO A LOT OF DRIVING WITH IT AS WE OWE TWO CARS. I DID NOT HAVE MY FOOT ON THE WRONG PEDAL, THIS IS VERY DANGEROUS AND IF THE DEALER DOES NOT FIND ANYTHING WITH THE CAR, I INTEND TO SELL IT, AS THIS IS PROBABLY ONE OF THE SCARIEST EXPERIENCE I HAD WITH A CAR. IT IS INTERMITTENT, SO I AM NOT SURE WHEN ITS GOING TO OCCUR, BUT TWICE IN THE LAST FEW WEEKS IS NOT COINCIDENCE ( IT ALSO HAPPENED TO MY WIFE A FEW MONTHS AGO, BUT WE THOUGHT IT COULD HAVE BEEN DUE TO SNOWY ROAD CONDITIONS). IN ONE CASE I WAS COMING UP TO A STOP SIGN, AND WAS BRAKING AND CAR WAS ACCELERATING AS I TRIED TO BREAK. I HAD TO PUT CAR IN NEUTRAL AND THE SHUT OFF CAR TO GET TO STOP. YESTERDAY, I WAS PULLING OUT OF A PARKING LOT, AND WAS WAITING FOR AN ON COMING CAR TO PASS ME BEFORE I COULD TURN ONTO ROAD, WHEN CAR WAS TRYING TO ACCELERATE, WHEN I HAD MY FOOT ON BRAKE, AND TOOK EVERYTHING TO KEEP THE CAR FROM ACCELERATING FORWARD INTO ON COMING CAR. ONCE CAR PASSED, I MADE TURN ONTO ROAD, AND ISSUE DID NOT REPEAT ON THE REMAINING MILE TO MY HOUSE. I WENT ONTO A MAZDA FORUM AND I SAW A FEW OTHERS WHO RAISED THE SAME CONCERN/ISSUE.

I WAS WAITING IN A STATIONARY POSITION, AT A RED LIGHT, BEHIND SOME OTHER VEHICLES, WITH MY FOOT ON THE BRAKE PEDAL. ALL OF A SUDDEN, THE VEHICLE STARTED TO LURCH FORWARD AS IF SOMEONE HAD STEPPED HARD ON THE GAS PEDAL! I WAS STRUGGLING TO KEEP THE CAR STILL BY DEPRESSING THE BRAKE PEDAL HARDER, BUT IT WOULDN'T STOP THE CAR. I HAD TO PUT IT IN PARK AND TURN OFF THE ENGINE TO STOP THE FORWARD THRUST OF THE VEHICLE.