There are 5 owner-reported visibility & wipers complaints for the 2004 Toyota Priusin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2004 TOYOTA PRIUS. THE CONTACT STATED THAT THE MULTI-DISPLAY MODULE FOR THE HEATER AND DEFROSTER UNITS FAILED, CAUSING THE WINDSHIELD DEFOGGER TO FAIL. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADVISED THAT THE MULTI-DISPLAY MODULE NEEDED TO BE REPLACED. THE MANUFACTURER WAS NOTIFIED AND STATED THAT THERE WERE NO RECALLS FOR THE VEHICLE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 28,000. UPDATED 1/30/13 *CN THE DEALER DIAGNOSED THE PROBLEM AS A MODULE MALFUNCTION WHICH WAS AN INTERNAL SHORT CIRCUIT AND GAVE THE CONSUMER AN ESTIMATE OF $700 TO REPLACE THE MODULE WITH A RECONDITIONED ONE. UPDATED 01/31/13 UPDATED 2/13/13 *CN UPDATED 02/14/13
THE MULTI FUNCTION DISPLAY REGISTERED THE ERROR CODE: CHECK CONNECTION OF AIR CONDITIONER. A DIAGNOSTIC TEST AT PAPPAS TOYOTA ON 12/2/11 SHOWED A DEFECTIVE MFD. A NEW REPLACEMENT WOULD COST $4300. A REFURBISHED ONE WAS TO BE LOCATED BUT A CALL WAS NOT RECEIVED AS TO THIS HAVING HAPPENED. TOYOTA WAS AWARE OF THIS POSSIBILITY AT LEAST BY 1/10/2005 WHEN A SERVICE BULLETIN WAS ISSUED. SINCE THE DEFECT IN THE PART WAS KNOWN TO TOYOTA AND INVOLVES A SAFETY ISSUE A REQUEST FOR WARRANTY REPLACEMENT WAS MADE. THIS REQUEST WAS DENIED. ON 12/23/11, AFTER HAVING BEEN TOLD A WEEK WOULD BE NEEDED TO FIND THE PART, I E-MAILED PAPPAS AND ASKED THAT ONE BE LOCATED. I MADE AN APPT. AT THAT TIME TO HAVE IT INSTALLED ON 1/3/12. I HAD NOT RECEIVED ANY INFORMATION BY 1/2/12 SO I CALLED AGAIN AND LEARNED THE PART WAS TO BE ORDERED ON 1/2/12 AS TOYOTA WAS CLOSED FOR THE HOLIDAY PERIOD. THE MFD ACTIVATES THE FRONT AND REAR DEFROSTERS. THIS IS CRITICAL AS THE INABILITY TO DO SO IS A SAFETY ISSUE IN MISSOURI WITH SNOW AND ICE BEING A POSSIBILITY. ON 1/4/12 A MESSAGE WAS RECEIVED FROM THE DEALERSHIP, THE ESSENCE OF WHICH WAS: THOSE DISPLAYS ARE ON BACK ORDER STATUS AT THIS TIME; THE MFD HOLDS THE MEMORY FOR THE MILEAGE ODOMETER SO WHEN IT IS ORDERED THE VEHICLE CAN NOT BE DRIVEN SO THAT THE ACTUAL ODOMETER MILEAGE REMAINS THE SAME; AND UNTIL I HEAR FROM YOU I HAVE PLACED YOUR ORDER ON HOLD; THERE ARE CURRENTLY TWO ORDERS AHEAD OF YOURS AND THEY WILL BE FILLED FIRST; THEY ARE NOT ABLE TO GIVE US A TIMETABLE WHEN THEY WILL BE RELEASED; AND ONCE THEY ARE AVAILABLE IT WILL TAKE APPROXIMATELY 7-10 BUSINESS DAYS TO RECEIVE. TOYOTA IS NOT MAKING THE NECESSARY PART AVAILABLE; EXPECTING THE CONSUMER TO BE DEPRIVED OF USE OF THE PRIUS FOR AN UNDETERMINED PERIOD OF TIME; AND OF BEARING THE COST OF THE DEFECTIVE PART. THE CONSUMER STATED THE PROBLEM HAS BEEN RESOLVED. UPDATED IVOQ 03/09/12 *TR
2004 TOYOTA PRIUS COST $449 (INCLUDES LABOR) TO REPLACE PASSENGER SIDE HEAD LIGHT. *TR
THE MULTI-FUNCTION DISPLAY (MFD) FAILED. (CROSS REFERENCE NHSTA COMPLAINT #10173892). THIS IS A KNOWN DESIGN DEFECT (CROSS REFERENCE ANALYSIS ON WEB: HTTP://TECHNO-FANDOM.ORG/~HOBBIT/CARS/MFD/COMPARE.HTML AND HTTP://TECHNO-FANDOM.ORG/~HOBBIT/CARS/MFD/). TOYOTA ISSUED A TECHNICAL SERVICE BULLETIN (EITHER EL-002-04 OR EL-002-05 - CONFLICTING INFO ON THIS) ON JAN 10, 2005. WHEN THE MFD FAILS, ONE CANNOT CONTROL THE AMOUNT OF AIRFLOW TO THE WINDSHIELD (DEFROSTER). THIS PRESENTED ME WITH VISIBILITY PROBLEMS DURING THE MORNING COMMUTE. AS SUCH, I CONSIDER IT A SAFETY ISSUE. TOYOTA HAS BEEN AWARE OF THIS FOR 3 YEARS, GIVEN THE DATE OF THEIR TSB. THE ROOT CAUSE APPEARS TO BE AN UNDERSIZED SOLDER PAD ON ONE OF THE ELECTRONIC CARDS OF THE MFD. THIS RESULTS IN A CRACKING OF THE SOLDER JOINT. BECAUSE MY PROBLEM WAS INTERMITTENT, COMING AND GOING ON A FREQUENT BASIS, I PRESUME IT WAS A MICRO CRACK. THIS DOES NOT HELP WHEN THE WINDSHIELD IS FOGGING OVER. ALL OF THE VARIOUS ERROR MESSAGES THAT WERE DISPLAYED ON THE MFD WERE CONSISTENT WITH THE INFORMATION ON THE ABOVE REFERENCED WEB URL'S. THE PROBLEM IS WITH THE RELEASE F OF THE ELECTRONIC CARD ASSEMBLY AND WAS CORRECTED WITH RELEASE G. THERE ARE PICTORIAL COMPARISONS BETWEEN THE TWO RELEASES ON ONE OF THE WEB URL'S. GIVEN THAT THIS HAS AN IMPACT ON VISIBILITY DURING THE WINTER MONTHS, I AM SHOCKED THAT TOYOTA CHOSE TO SIT ON THIS PROBLEM. THE SUPPLIER OF THIS PART TO TOYOTA IS FUJITSU. *TR
WITH 34,000 MILES ON MY 2004 PRIUS, THE GLASS HAS DEVELOPED SEVERE PITTING, NOT ONLY ON THE WINDSHIELD, BUT ON THEIR SIDE WINDOWS AS WELL. WHEN THE SUN HITS THE WINDSHIELD VISIBILITY IS GREATLY REDUCED. *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.
Data synced from NHTSA on Apr 26, 2026