There are 3 stored owner reports matching the electrical system leading-label group for the 2009 Mazda Mazda3 in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)MY CAR DOES NOT HAVE A KEY LOCK ON THE PASSENGER SIDE. THE DOOR CAN ONLY BE UNLOCKED BY THE DRIVER'S SIDE OR BY A KEY REMOTE. I DO NOT HAVE A REMOTE. BECAUSE THE PASSENGER SIDE CAN ONLY BE OPENED BY THE DRIVER'S SIDE THIS CREATES A RISK OF INJURY FOR THE DRIVER, AS WELL AS PASSENGERS WHO ARE DEPENDENT ON THE DRIVER. FOR EXAMPLE, MY MOTHER IS 80 YEARS OLD AND DEAF. SHE NEEDS ASSISTANCE WALKING. WHEN I NEED TO UNLOCK THE CAR, I HAVE TO LEAVE HER UNATTENDED ON THE PASSENGER SIDE OR BRING HER WITH ME TO THE DRIVER'S SIDE THEN WALK BACK TO THE PASSENGER SIDE. ANOTHER EXAMPLE WOULD BE IF I NEED TO UNLOCK MY CAR WHEN THERE HEAVY TRAFFIC ON THE STREET SIDE (DRIVER'S SIDE) BEFORE I CAN PUT MY DOG'S IN THE CAR, I HAVE TO LEAVE MY DOGS UNATTENDED, OR BRING THEM INTO THE STREET WITH ME. WHEN TRAFFIC IS HEAVY, MY ONLY METHOD TO UNLOCK THE CAR IS TO GO INTO HEAVY TRAFFIC. I HAVE NOTICED THERE ARE MANY CAR MANUFACTURERS NOT INSTALLING A KEY LOCK ON THE PASSENGER SIDE. I CAN'T UNDERSTAND THE REASON FOR THIS OTHER THAN SAVING ON COSTS. NOWADAYS MOST CAR KEYS ARE COUPLED WITH A REMOTE TO UNLOCK THE CAR. HOWEVER, IF THE REMOTE SHOULD FAIL, THE DRIVER CAN ONLY UNLOCK THE CAR FROM THE DRIVER'S GAIN ENTRY. THIS POSES A DANGEROUS RISK TO THE DRIVER AND PASSENGERS. TO REPLACE A FAULTY REMOTE COSTS APPROXIMATELY $150. I BELIEVE THIS APPROACH TO GAIN CAR ENTRY IS DEFECTIVE AND CAN RESULT IN INJURY OR DEATH. THERE IS A STRONG INFERENCE THAT CAR MANUFACTURERS ARE DELIBERATELY NOT INSTALLING A KEY LOCK ON THE PASSENGER SIDE TO SAVE ON MANUFACTURING COSTS AND ALSO MAKE MONEY BY HAVING THE CONSUMER BUY A REMOTE. I RESPECTFULLY REQUEST YOU LOOK INTO THIS MATTER. YOUR TIME AND EFFORTS ARE GREATLY APPRECIATED.
RED TAIL / BRAKE LIGHT LENSES ARE MELTED BY BULB. *TR
PURCHASED VEHICLE ON 7/09. ON 1/6/10, VEHICLE FAILED TO START, AT FIRST CRANKING WITH NO ENGINE START THEN COMPLETE DISCHARGE OF SYSTEMS (NO CRANKING, NO BATTERY POWER WHATSOEVER). BROUGHT INTO DEALERSHIP AND WAS TOLD "MAIN RELAY" WAS DEFECTIVE AND WAS THE REASON BATTERY WAS NOT HOLDING ITS CHARGE. RELAY WAS REPLACED. SAME EVENTS AGAIN OCCURRED ON 3/3/10. CAR REMAINS IN DEALERSHIP FOR DIAGNOSIS & REPAIR. CAR REMAINS INOPERABLE WHEN THESE EVENTS OCCUR. *TR
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.