There are 4 owner-reported visibility & wipers complaints for the 2014 Toyota Siennain NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
TL* THE CONTACT OWNS A 2014 TOYOTA SIENNA. WHILE DRIVING APPROXIMATELY 65 MPH, A LOUD EXPLOSION WAS HEARD. THE CONTACT DISCOVERED THAT THE SUN ROOF EXPLODED. THERE WERE NO INJURIES. THE VEHICLE WAS TAKEN TO HOOVER TOYOTA (2686 JOHN HAWKINS PKWY, HOOVER, AL 35244) TO BE REPAIRED. THE CAUSE OF THE FAILURE WAS NOT DISCLOSED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
WENT TO CAR PARKED FOR THREE DAYS - SUNROOF SHATTERED OUTWARD. 4/7/17 NOT THE FIRST TIME - ON. 8/25/14 IT SHATTERED WHILE DRIVING (7978 MILEAGE)- A LOUD EXPLOSION AND NO OTHER CARS IN SIGHT. ALSO EXPLODED OUTWARD. OPENED A CASE WITH TOYOTA RELATIONS WHO ASKED WE BRING TO DEALERSHIPS FOR REVIEW. FIRST TIME TECHNICIAN BLAMED ON OBJECT HITTING US FROM ROAD - TOYOTA PAID FOR REPLACEMENT AS GOOD WILL GESTURE. NOW TECHNICIAN SAY SOMEONE PUNCHED IT FROM BELOW WITH COVER CLOSED - HAVE PICS BELOW. ALSO STATED HAD TO BE BROKEN FROM WITHIN - BASICALLY ACCUSED US OF PUNCHING IT. AFTER THE FIRST TIME WE KEEP COVER CLOSED AND NEVER USE IT FOR FEAR IT WOULD HAPPEN AGAIN.
DRIVER'S WINDOW SEAL COMES DETACHED WHEN WINDOW RETRACTS AND YOU CANNOT PUT WINDOW BACKUP USING CONTROL BUTTON AS SENSOR DETECTS INTERFERENCE \ RESISTANCE AND AUTOMATICALLY RETRACTS WINDOW TO OPEN POSITION. THIS CREATES A DANGEROUS SITUATION WHEN DRIVING AS ITS A MAJOR DISTRACTION TO THE DRIVER AS THE SEAL HANGS LOOSE AND CAN INTERFERE WITH UNOBSTRUCTED VIEWABILITY OF SIDE MIRROR. IN INCLEMENT WEATHER THIS IS A REAL DRIVING HAZARD. TEMPORARY FIX IS TO PULL UP ON WINDOW SEAL AND PUSH BACK INTO POSITION ESTIMATED FIRST TIME PROBLEM NOTICED. SORRY FOR SLOW REPORTING JUST FOUND THIS WEBSITE TO REPORT PROBLEM.
THIS PART IS NOT ON NHTSA AFFECTED PARTS LISTS AND NEEDS TO BE UNDER (SUNROOF / MOONROOF /PANORAMA ) WHILE DRIVING FROM FLORIDA JUST OUTSIDE THE LINCOLN TUNNEL ON A SUNNY 65 DEGREE MORNING (7:30 AM, SUNDAY) WE HEAR A LOUD BOOM. NOTHING WAS IN FRONT OF US, NO OVERPASS. I SLIDE THE MOONROOF (ALL OTHER CARS CALL IT A SUNROOF) COVER BACK AND GLASS FALLS IN - IT LOOK AS IF IT HAD EXPLODED UPWARD. THANK GOODNESS I HAD THE COVER CLOSED. DEALERSHIP DETERMINES IT WAS CAUSED BY IMPACT BECAUSE OF THE GLASS BREAK PATTERN. I ASKED HIM IF HE HAD EVER SEEN THE PATTERN OF GLASS IF IT WAS DEFECTIVE, IF THERE WOULD SHOW A WEAK POINT. HE SAID HE HAD NOT AND THEN SAID HE DID NOT KNOW FOR SURE - IT WAS JUST FROM HIS EXPERIENCE HE DETERMINED THIS - EVERYONE AT DEALERSHIP HAD NEVER HEARD OF A SPONTANEOUS BLOW OUT IN THE MOONROOF /SUNROOF. THERE IS A LOT DOCUMENTED ON EDMUNDS.COM AND OTHER PLACES SO I SENT LINKS TO THIS INFO TO THE DEALERSHIPS. I HAVE OPENED A CASE WITH TOYOTA, THEY HAVE YET TO DETERMINE. THEY NEED TO BE HELD RESPONSIBLE - THEY NEED TO DE RESEARCH - WE COULD HAVE BEEN HURT IF THE COVER WAS OPENED. *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 25, 2026