There are 3 stored owner reports matching the electrical system leading-label group for the 2005 Mazda RX-8 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)THE MAZDA RX-8 IS HAVING AN ISSUE THAT IS COMING UP MORE FREQUENTLY NOW FROM A FAULTY A/C SWITCH OR HEATING SYSTEM FAILURE. THE HEAT DOES NOT COME INTO THE VEHICLE WHEN THE HEAT IS TURNED ON AND ONLY COLD AIR COMES INTO VEHICLE. THE FAILURE HAPPENS IN THE BEGINNING ONLY RANDOMLY UNTIL THE UNIT COMPLETELY FAILS. THE A/C MODULAR IS A ELECTRONIC SWITCH THAT CHANGES VENTS AND A/C OR HEAT. THE VENT MECHANISM STILL FUNCTIONS BUT THE HEAT IS NEVER TRANSFERRED INTO THE VEHICLE. THE CONSEQUENCES FROM THIS ITEM FAILING, ESPECIALLY IN THE WINTER TIME, THE WINDSHIELD CANNOT BE DEFROSTED AND DRIVING DOWN THE ROAD WAY HUMAN EXHAUSTION WILL CAUSE THE WINDOW FOG UP IMPAIRING DRIVER'S VISION. AS WELL AS COLD TEMPERATURES WITHIN THE VEHICLE THAT DO NOT SUFFICE WHILE DRIVING IN COLD WEATHER. *TR
DT*: THE CONTACT STATED ON THREE OCCASIONS THE VEHICLE WOULD NOT START. IT WAS TOWED TO THE DEALER EACH TIME WHERE THE BATTERY AND THE STARTER WERE REPLACED, BUT THE PROBLEM RECURRED. *AK
DT*: THE CONTACT STATED WHILE DRIVING AT 70MPH, THE ANTI-SKID AND CHECK ENGINE LAMPS ILLUMINATED. AFTER THE LAMPS ILLUMINATED, THE VEHICLE'S ENGINE REVVED AND THE VEHICLE LOST POWER. THE SPEED DECREASED FROM 70MPH TO 15MPH WITHIN 8 SECONDS. THE VEHICLE WAS PULLED OFF THE ROAD, WERE THE IGNITION WAS TURNED OFF AND RESTARTED. THE VEHICLE RESTARTED WITH EASE, BUT THE ENGINE STILL REVVED HIGH AND THE LAMPS REMAINED ILLUMINATED. THE VEHICLE WAS TOWED TO THE LOCAL DEALERSHIP. DIAGNOSTIC TESTING WAS COMPLETED ON THE VEHICLE HOWEVER THE DEALER WAS NOT ABLE TO DETERMINE THE EXACT CAUSE. THE DEALERSHIP PERSONNEL SUGGESTED THE ELECTRICAL SYSTEM WAS DEFECTIVE. THE VEHICLE REMAINS AT THE DEALERSHIP WERE ADDITIONAL TESTING IS UNDERWAY.
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.