There are 11 owner-reported electrical system complaints for the 2003 Mazda Mazda6in NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2003 MAZDA MAZDA6. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 35 MPH, THE VEHICLE SUDDENLY SHUT OFF. THE FAILURE HAD OCCURRED ON MULTIPLE OCCASIONS. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 167,000.
MY VEHICLE HAS BEEN HAVING AN ISSUE WITH THE THROTTLE POSITION SENSOR. AS WELL AS THE PCM, USUALLY CONNECTED AS NOTED BY MY MECHANIC. 3 THINGS CAN COME FROM THIS HE SAID. I COULD BE HAVING AN ISSUE WITH THE GAS PEDAL, THE COMPUTER, OR I NEED A NEW THROTTLE BODY. FROM MY UNDERSTANDING SO FAR THE ISSUE CAUSES THE COMPUTER TO INCORRECTLY READ, CAUSING THE CHECK ENGINE LIGHT AS WELL AS A FEW OTHERS TO ABRUPTLY TURN ON WHILE CAR IS IN FULL MOTION, FOR ME THIS IS TYPICALLY AT 55 MPH. THE CAR THEN LOOSES THE ABILITY TO PROPERLY ACCELERATE, OR DECELERATE. I HAVE TO QUICKLY PULL MY CAR TO THE SHOULDER, PUT IN PARK WHILE THE CAR SEEMS TO BE LURCHING FORWARD, AND TURN OFF THE ENGINE. IF I DO NOT DO THIS QUICK ENOUGH THE ENGINE BEGINS TO REV HIGH AND LOW CONTINUOUSLY. MY RPM GAUGE BOUNCES AROUND AS IT IS DOING SO. AFTER LEAVING THE CAR OFF FOR A FEW MOMENTS I CAN THEN RESTART. MY CHECK ENGINE LIGHT WILL NOW STAY ON FOR ABOUT 50 MILES AND TURN ITSELF OFF. ONCE THE LIGHT HAS GONE OFF USUALLY WITHIN 15 MILES MY CAR WILL DO IT ALL OVER AGAIN. AFTER CALLING MY DEALER, BECAUSE I STILL OWE 2 MORE YEARS OF PAYMENT ON THE CAR, I AM TOLD THAT THEY CAN FIX IT IF I HAVE MY WARRANTY INTACT. UNFORTUNATELY IT HAS RUN OUT AS OF JULY. THE PART ALONE FROM THE DEALERSHIP IS $700. WHY IS THERE NO RECALL ON THIS ISSUE IF SO MANY PEOPLE ARE HAVING IT? *TR
DRIVING AT APPROXIMATELY 60 MPH ON A STATE HIGHWAY, THE VEHICLE SUDDENLY WENT INTO LIMP MODE. FROM THE SUDDEN JUMP INTO LIMP MODE, A MULTI-CAR ACCIDENT WAS NARROWLY AVOIDED. THIS IS DEFINITELY A SAFETY CONCERN. THANKFUL NOBODY WAS HURT. *TR
BOUGHT A 2003 MAZDA 6 LAST YEAR, MY TACHOMETER KEPT GOING CRAZY AND THE CAR WOULD DIE OUT. I TOOK IT TO GOOD YEAR, 3 CODES CAME UP. THEY CHANGED THE CAM SHAFT SENSOR AND THE EGR VALVE. THAT DIDN'T FIX THE PROBLEM, GOOD YEAR TOOK THE PARTS OUT, PUT MINE BACK IN AND TOLD ME TO TAKE IT TO A MAZDA DEALERSHIP. I TOOK IT TO MAZDA, THEY TOLD ME I HAD TO CHANGE MY PCM BECAUSE IT WAS SHORTING OUT, AND MY EGR VALVE AND THAT SHOULD TAKE CARE OF THE PROBLEM. THEY QUOTED ME 2K DOLLARS FOR EVERYTHING. I ASKED THEM HOW MUCH THEY WERE CHARGING FOR THE PARTS, THEY TOLD ME 1100 FOR THE PCM AND 200 FOR THE EGR, THE REST WAS LABOR. AS THE SERVICE ADVISOR QUOTED ME PRICES, I TOLD HER I CAN BUY A PCM ONLINE FOR 145. SHE SAID, YES, YOU CAN DO THAT, BUT WE WON'T WARRANTY THE JOB BECAUSE IT'S NOT OUR PART. I TOLD THEM ARE YOU SURE THAT WILL TAKE CARE OF THE PROBLEM? THEY SAID YES. I TOLD THEM OKAY FINE! CONSTANTLY CALLING THE DEALERSHIP FOR 2 WEEKS ASKING WHEN I WAS GOING TO GET MY CAR BACK, THEY GAVE ME A LOANER. I HAD THAT FOR A WEEK, SO THEY HAD MY CAR A TOTAL OF 3 WEEKS. FINALLY I CALLED AGAIN, I ASKED THEM WHAT'S GOING ON WITH MY CAR. THEY TOLD ME, I NEED A NEW ENGINE. I WAS LIKE WHAT? WHAT HAPPENED TO 2K WILL TAKE CARE OF THE PROBLEM? THEY SAID NO, THERE'S TOO MUCH SLUDGE IN THE ENGINE, YOU NEED A NEW ONE. UPSET, I'M ALREADY IN FOR 2K AND NOW THEY WANT ME TO SPEND ANOTHER 5K FOR A NEW ENGINE. MIND YOU, I WAS ALREADY HESITANT BECAUSE OF THE PRICE OF THE PCM. ANY WAY, SERVICE ADVISOR TELLS ME, I CAN BUY A NEW/USED ENGINE ONLINE FOR 500 AND HAVE THEM CHANGE IT. I TOLD THEM THAT WAS THE WHOLE REASON, I DIDN'T BUY THE PCM ONLINE!I WAS TOLD YOU WOULDN'T WARRANTY IT, NOW YOU WANT ME TO BUY ONE ONLINE? I WENT TO THE DEALERSHIP, PICKED UP MY CAR, STILL THE SAME PROBLEM. I'M NOT THE ONLY ONE,SEE LINK ... HTTPS://WWW.YOUTUBE.COM/WATCH?V=XPKZPHE4SBI OR WWW.YOUTUBE.COM/WATCH?V=N6FOAYBW_5K. *TR
MULTIPLE PROBLEMS FROM CAROUSEL MOTORS HIGHWAY 1 WEST, IOWA CITY IOWA 52246. 319-354-2550 WHILE CHANGING OIL THEY DISCONNECTED A HOSE WHICH ANOTHER DEALER WAS ABLE TO FIND AND REPAIR. WHILE TALKING THE CAR IN AND HAVING IT IN THEIR POSSESSION IT RECEIVED $3,000 DAMAGE. THEY COULD NOT DIAGNOSE THE PROBLEM IN OVER 20 DAYS. NEXT THEY PUT A FUSE BOX DOOR COVER ON UNDER WARRANTY. IN DOING SO THEY REMOVED THE SILL COVER ON THE DRIVER'S SIDE. WHEN THEY REPLACED THE SILL COVER THE DROVE THE LOCK DOWNS ON THE COVER THROUGH THE WIRING HARNESS. OBLIVIOUS TO WHAT THE HAD DONE THEY BLAMED ME FOR THE DAMAGE TO THE VEHICLE. CAROUSEL MOTORS SHOULD NOT HAVE A MAZDA FRANCHISE. IT IS NOT FOR THE SEEMINGLY OBVIOUS REASONS AS STATED BUT FOR THE FACT THAT A MR. PAT LINN THE GENERAL MANAGER FOR THE DEALERSHIP HAS CALLED MY PLACE OF EMPLOYMENT RAKING ME THROUGH THE DIRT TO MY MANAGER AT WORK TO COMPLAIN ABOUT ME TO MY BOSS. HE HAS TURNED THIS INTO A PERSONAL MATTER AND NOT A BUSINESS MATTER. IS THIS A REACTION OF AN ADULT? HIS OWNER NEEDS TO LOCK HIS HEALS TOGETHER, RELEASE HIM FROM HIS POSSITION, AND HAVE THE DEALERSHIP APPOLOGIZE FOR HIS MISUSE OF HIS POSITION. HARRASSMENT AND SLANDER ARE NOT AND WILL NOT BE TOLLERATED. PLEASE FORWARD THIS TO MAZDA . *AK
THE CAR GOT STUCK IN A MIXTURE OF MUD AND SNOW. DURING THE EFFORT TO GET THE CAR UNSTUCK THERE WAS A SPARK INSIDE OF THE CAR ON THE DRIVERS SIDE. THE OCCUPANTS OF THE CAR EXITED THE CAR AND FOUND THAT THERE WERE FLAMES SHOOTING OUT FROM UNDERNEATH THE FRONT OF THE VEHICLE. THEY WERE UNABLE TO STOP THE FIRE AT THAT POINT AND THE CAR HAS BEEN BURNED TO NOTHING. I FEEL THAT THERE NEEDS TO BE SOME KIND OF INVESTIGATION AS TO WHY THE CAR STARTED ON FIRE ESPECIALLY WHEN IT WAS STUCK MOSTLY IN SNOW.*AK
CAR DOES NOT HAVE IGNITION LOCK SYSTEM. AFTER STOPPING CAR, TURNING OFF AND REMOVING KEY, CAR ROLLED BACKWARD WHILE STILL IN "DRIVE" POSITION CAUSING DAMAGE TO DRIVER SIDE BACK DOOR. SON WAS WITHIN INCHES OF BEING SLAMMED INTO CONCRETE POLE THE CAR ROLLED INTO. *LA
HAVE A MAZDA 6 THAT CONTINUOUSLY HAS THE CHECK ENGINE LIGHT COME ON. HAD AN INCIDENT WHERE THE CAR WAS FAILING TO ACCELERATE AND WAITED FOR TOW TRUCK. THAT WAS THE FIRST TIME I TOOK THE CAR IN FOR REPAIR. WAITED 3 WEEKS BEFORE I COULD GET MY CAR BACK AND WHEN I GOT IT BACK, IT HAPPENED AGAIN 3 MORE TIMES, AND TOOK IT IN FOR SERVICING ALL THOSE TIMES. I DON'T WANT TO CONTINUE TO MAKE A TRIP TO THE DEALER EVERY MONTH LIKE I HAVE BEEN DOING.*AK
I AM EXPERIENCING PROBLEMS ON COLD STARTS. THE CAR WILL IDLE UP TO 2000 RPM, THEN IDLE ALL THE WAY DOWN AND DIE. ALL OF THIS WILL TAKE PLACE IN ABOUT 5-6 SECONDS. THE DEALER TOLD ME THAT IT WAS AN AFTERMARKET HANDSFREE KIT I HAD ADDED TO THE CAR. BUT I PURCHASED THE CAR IN JANUARY AND HAD THE KIT ADDED IN LATE FEBRUARY, AND HAD NO PROBLEMS UP UNTIL A COUPLE WEEKS AGO (LATE MAY). THE DEALER UNHOOKED THE HANDSFREE KIT, BECAUSE THEY SAID THAT THE AFTERMARKET PRODUCT WAS THE PROBLEM. AFTER HAVING THE KIT UNHOOKED FOR ABOUT 2 WEEKS NOW, I STILL EXPERIENCE THE PROBLEM. THE KIT IS NOT EVEN HOOKED INTO THE CARS WIRING ANYWHERE, IT IS WIRED ONTO THE BATTER DIRECTLY. THE PHONE IS NOT EVEN IN THE KIT WHILE THE CAR IS STARTING, AND THE KIT PULLS NO POWER UNLESS THE PHONE IS IN IT.
CHECK ENGINE LIGHT CAME ON. CAR DIDN'T HAVE KNOW PICK UP.TOOK CAR TO THE DEALER,THEY NEVER TOLD ME WHAT WAS WRONG.
I PURCHASED A 2003 MAZDA6 ON 4/18/2003, AT OF TODAY IT HAS 3,800 MILES.AFTER DRIVING ABOUT 10 MILES I STOPPED TO ORDER FOOD FROM A DRIVE THRU WINDOW. I WAS TOLD THAT IT WOULD BE 10 MINS FOR MY ORDER TO BE READY, SO I PULLED OVER TO A STALL AND WAITED FOR 15 MINS, WITH THE CAR STILL ON(NO AC WINDOWS DOWN). WHILE PLACING MY ORDER I HEARD THE FAN TURN ON I KNEW IT WAS ON BECAUSE IT WAS MAKING A VERY LOUD NOISE (NOT LIKE NORMAL). IT STAY ON WHILE I WAS PARKED WAITING FOR MY ORDER AND ON THE DRIVE HOME 10 MIN. IT CONTINUED TO STAY ON 90 SEC AFTER CAR WAS TURNED OFF. I WENT TO CHECK ON THE INTERNET TO SEE IF THERE WAS A PROBLEM WITH ANYONE ELSE AND FROM CA TO FA AND EVEN IN CAN MAZDA6 OWNERS HAVE HAD TO REPLACE RELAY CONTROL MODULE. I CALLED DEALER THEY SAID THAT THIS WAS NORMAL, BUT I COULD BRING IT IN TO CHECK. AFTER CAR WAS INSPECTED I WAS TOLD THAT THE RELAY CONTROL MODULE NEEDED TO BE REPLACED. *LA
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.
Data synced from NHTSA on Apr 25, 2026