2019 Mazda MAZDA3

CAR HAS GIVEN MULTIPLE WARNINGS THAT DRIVER AND SAFETY ASSIST FEATURES ARE DISABLED -- DESPITE NOT BEING ENABLED. CAR ALSO GAVE A CAMERA MALFUNCTION WARNING APPROXIMATELY 1 MINUTE BEFORE SLAMMING ON BRAKES UNEXPECTEDLY AT 35-40MPH AND CAUSING INJURY TO DRIVER;INCIDENT OCCURRED AT CLEAR NIGHT WITH NO OTHER CARS AROUND. CAR CURRENTLY IN SHOP; NO WORD ON WHAT CAUSED THIS OR WHEN IT WILL BE REPAIRED.

TL* THE CONTACT OWNS A 2019 MAZDA 3. THE CONTACT STATED THAT THE VEHICLE FAILED TO IMMEDIATELY ACCELERATE AFTER THE BRAKE ASSIST WAS ENGAGED. AS A RESULT, THE CONTACT'S VEHICLE WAS REAR ENDED BY ANOTHER VEHICLE. THE AIR BAGS DID NOT DEPLOY. A POLICE REPORT WAS NOT FILED AND THERE WERE NO INJURIES SUSTAINED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 7,000.

WHILE THE VEHICLE IS IN MOTION THE RIGHT SIDE BLIND SPOT MONITORING SYSTEM DOES NOT WORK OCCASIONALLY. SOMETIMES THIS HAPPENS WITH A WARNING MESSAGE BUT SOMETIMES IT HAPPENS WITHOUT A WARNING. MULTIPLE REPAIR ATTEMPTS HAVE BEEN MADE BUT THE ISSUE STILL KEEPS HAPPENING. MAZDA IS TRYING TO WORK ON THIS ISSUE BUT IS NOT ABLE TO FIGURE OUT WHAT IS WRONG WITH THEIR VEHICLES.

MY CAR SUDDENLY MADE A BIG CLUNK NOISE AND I WAS WARNED OF A POWER STEERING MALFUNCTION. I HAVE ALSO BEEN WARNED MULTIPLE TIMES THAT DUE TO A MALFUNCTION THE 'SAFETY SYSTEMS HAVE BEEN DISABLED', ANOTHER ISSUE IN HAVING IS A HEADLIGHT MALFUNCTION. WHEN THE HEADLIGHT MALFUNCTION OCCURS THE DIGITAL SPEEDOMETER GETS VERY DARK AND I AM UNABLE TO TELL HOW FAST I AM GOING. THERE IS NO WAY TO TURN THE BRIGHTNESS UP TO SEE THE SPEEDOMETER AGAIN UNTIL THE ERROR CODE GOES AWAY. MAZDA TOLD ME I MUST LEAVE MY WINDOWS DOWN WHEN THE CAR IS IN A HOT CLIMATE TO PREVENT IT FROM OVERHEATING WHILE NOT IN USE...I LIVE IN OHIO SO THE WEATHER IS NOT EXTREMELY HARSH. I'VE TAKE THE VEHICLE TO THE DEALERSHIP MULTIPLE TIMES AND THEY HAVE NOT FIXED ANY OF THE ISSUES. I CALLED MAZDA CORPORATE AND WAS TOLD 'WHAT WOULD YOU LIKE ME TO DO ABOUT IT' I WAS TOLD MY ISSUES HAD NO REMEDY. THE CORPORATE CALL CENTER WOULD NOT PUT ME THROUGH TO ANYONE ELSE FOR FURTHER HELP. I FEEL UNSAFE IN MY VEHICLE AND IT'S NOT EVEN OVER 8500 MILES YET.

A SAFETY CRITICAL INCIDENT OCCURRED ON MY NEW 2019 MAZDA 3 HATCHBACK WHEN THE VEHICLE WHEN INTO "LIMP" MODE WHILE ADAPTIVE CRUISE CONTROL WAS ENGAGED AT HIGHWAY SPEEDS LEADING TO RAPID DECELERATION. THE VEHICLE WAS TOWED TO THE NEAREST MANUFACTURER SERVICE LOCATION WHERE A DIAGNOSTIC WAS PERFORMED. CODES SHOW THAT COMMUNICATION BETWEEN THE CENTRAL VEHICLE PROCESSOR AND MULTIPLE SUB-PROCESSORS FAILED SIMULTANEOUSLY. COMMENTS WERE MADE BY MANUFACTURER SERVICE REPRESENTATIVES THAT FAILURE MODE IS LIKELY DIFFERENT FROM THE RECENT CYLINDER DEACTIVATION/ROCKER ARM RECALL. SERVICE REPRESENTATIVES WERE INSTRUCTED TO SIMPLY CLEAR THE CODES AND DRIVE THE VEHICLE TO ATTEMPT TO REPRODUCE THE FAILURE DURING WHICH IT DID NOT OCCUR. I HAVE ATTACHED A SANITIZED VERSION OF THE SERVICE RECEIPT TO THIS MESSAGE WITH THE FULL LIST OF CODES. UNFORTUNATELY MAZDA'S REPRESENTATIVES WERE UNABLE TO PROVIDE ANY EXPLANATION ON WHY THIS FAILURE OCCURRED OR WHAT WILL BE DONE TO PREVENT IT IN THE FUTURE. ENGINEERING ANALYSIS WILL NEED TO BE PERFORMED TO REACH AN ACCEPTABLE CONCLUSION. ENVIRONMENTAL FACTORS RELATING TO THE INCIDENT INCLUDE A VERY HOT OUTSIDE AIR TEMPERATURE, WITH A READING OF 115 DEG F FROM THE VEHICLE'S SENSOR ROUGHLY 15 MINUTES BEFORE THE INCIDENT. THE INCIDENT ALSO OCCURRED ON A VERY LONG SECTION OF US HIGHWAY WITH A CONSISTENT, GRADUAL INCLINE. GIVEN THAT INFORMATION POTENTIAL CAUSES ARE INTERMITTENT COMPUTER HARDWARE FAILURE IN HIGH TEMPERATURE ENVIRONMENTS, OR A SOFTWARE ERROR IN POWER TRAIN CONTROL OR CRUISE CONTROL CAUSING A COMMUNICATION BUS FAILURE. WITH THE AGE AND MILEAGE OF THE VEHICLE (336 MI) THE POTENTIAL FOR THIS FAILURE OCCURRING IS LIKELY PRESENT IN A LARGE PORTION OF NEW MAZDA VEHICLES.

THE ENTIRE VEHICLE SAFETY SYSTEM MALFUNCTIONS AT RANDOM TIMES WHILE DRIVING, MOST RECENTLY ON THE HIGHWAY. THE DASHBOARD ILLUMINATES STATING "SAFETY AND DRIVER SUPPORT SYSTEMS PARTIALLY DISABLED, DRIVE SAFELY". I LOSE BLIND SPOT MONITORING, LANE KEEP ASSISTANCE, RADAR, AND CITY BRAKE SUPPORT, AMONG OTHER THINGS. THIS HAS HAPPENED SEVERAL TIMES OVER THE PAST 2 WEEKS.