Visibility
Filed Dec 9, 2025
MYself and my fiancee were driving to our family's home, the rear defrost was on due to foggy windows as we were driving down the road there was a loud noise from the back half of the 4 runner. I had turned and looked back behind me and the rear hatch window was completely shattered. Its still intact in the window frame but about to fall out. This happened out of nowhere no warnings or anything.
- NHTSA ID
- 11703997
- Incident
- Dec 8, 2025
Visibility
Filed Jan 9, 2024
The rear window on my 2006 4Runner suddenly shattered. I had just cleared the car of snow, put my son in the car and left the house. Less than 1/10th of a mile down the road it exploded. Glass could have gone all over the child in the backseat. There have been past issues. Toyota offered an extended warranty on the part until 2018, so they are aware of the problem. Not yet. No warnings.
- NHTSA ID
- 11564329
- Incident
- Jan 9, 2024
Visibility
Filed Feb 25, 2022
The rear window shattered spontaneously while the rear defroster was on. There was no impact to the window and no prior chips/scratches. The tint held the shattered window together, but without the tint glass would have gone flying inside and outside the vehicle, putting passengers and cars traveling behind at risk. No warnings or issues were present for the rear window or defroster system prior to incident. The problem has been inspected by Toyota of Orlando. This problem is known to Toyota under their enhanced warranty program ZG7, but they refuse to cover the repair because the date to experience the shattering rear window has passed. There are numerous other cases reported of this issue. Toyota of Orlando confirmed this would fall under their ZG7 program, had the window shattered and brought to a dealer prior to 4/30/2018.
- NHTSA ID
- 11454000
- Incident
- Feb 23, 2022
Visibility
Filed Jan 5, 2022
The rear window shattered and is not available for inspection because it's in a million pieces. There is now broken glass all inside the vehicle and on the ground. The car was inspected at the dealership, but not insurance. There was no warning leading up to the incident. The defroster for the rear window was on due to weather. The loud bang and sound of glass falling is how I was aware of the failure.
- NHTSA ID
- 11446384
- Incident
- Jan 4, 2022
Visibility
Filed Oct 25, 2021
Rear window breakage: A few minutes after turning on the rear window defogger while parked, a smell of hot electronics was noticed. Thinking the smell was coming from the vent/engine compartment, I turned the vehicle off and inspected under the engine hood for the source. No damage or smell was detected. I turned the vehicle back on with the defroster on, and shortly after, the entire rear window shattered. No foreign objects indicating impact damage were found in the glass wreckage.
- NHTSA ID
- 11438125
- Incident
- Oct 23, 2021
ElectricalVisibility
Filed Jan 15, 2021
2006 4RUNNER REAR GLASS EXPLODED/SHATTERED AFTER USING DEFROST - WAS DENIED REIMBURSEMENT DESPITE THIS BEING A KNOWN ISSUE AND FAULTY DEFROST CONNECTOR. AFTER DROPPING MY 5 YEAR OLD SON OFF FOR SCHOOL ON 1/15/2021, I PULLED UP TO A STOP SIGN AND HEARD A LOUD CRASH FROM THE BACK OF THE CAR. I LOOKED IN THE REAR VIEW MIRROR AND THE BACK GLASS HAD COMPLETELY SHATTERED AND PIECES WERE COMING OFF INTO THE BACK SEAT. NOTHING HAD HIT THE WINDOW FROM THE INSIDE OR OUTSIDE - THIS HAPPENED SPONTANEOUSLY. RIGHT BEFORE THIS HAPPENED, I HAD THE REAR DEFROST ON FOR APPROXIMATELY 10 MINUTES TO CLEAR THE REAR GLASS WHILE DRIVING. THE DEFROST WAS OFF WHEN THE GLASS EXPLODED. I CONTACTED MY LOCAL TOYOTA DEALERSHIP WHO INFORMED ME THAT THIS WAS A KNOWN ISSUE BUT THAT THE EXTENDED WARRANTY COVERAGE FOR THIS HAD ENDED ON APRIL 30, 2018.TOYOTA RELEASED A TSB (TECHNICAL SERVICE BULLETIN) AND OFFERED AN EXTENDED WARRANTY AND FREE REPLACEMENT FOR VEHICLE OWNERS WHO EXPERIENCED THIS PROBLEM STARTING IN 2017 BUT IS SINCE EXPIRED. THE CONNECTOR FOR THE DEFROST LOCATED IN THE REAR GLASS IS FOUND TO BE FAULTY AND CAN SHORT OUT OR OVERHEAT, CAUSING THE GLASS TO SHATTER. BEING THAT THIS IS A MAJOR SAFETY CONCERN AND THANKFULLY MY 5 YEAR OLD SON WASN'T IN THE BACKSEAT AT THE TIME, AVOIDING INJURY FROM THE GLASS, I DECIDED TO CONTACT TOYOTA CUSTOMER EXPERIENCE. A CASE WAS OPENED, HOWEVER, THEY WOULDN'T OFFER ANY COMPENSATION OR ASSISTANCE WITH GETTING THE GLASS REPLACED. WE ARE WITHOUT A VEHICLE UNTIL THIS CAN BE REPAIRED AND I AM NOW FORCED TO PAY FOR IT ON MY OWN SINCE TOYOTA ISN'T AGREEING TO HELP AT ALL.
- NHTSA ID
- 11388319
- Incident
- Jan 15, 2021
- Mileage
- 66,300 mi
ElectricalVisibility
Filed Jan 2, 2021
ON MY WAY TO THE GROCERY STORE, MY BACK WINDOW BLEW OUT WHILE DRIVING. IT WAS A VERY LOUD POP! WHICH SCARED THE DAYLIGHTS OUT OF ME! I LOOKED IN THE REVIEW-MIRROR AND THE BACK WINDOW COMPLETELY SHATTERED. THERE WAS NOBODY AROUND AND I WAS DRIVING TOO SLOW FOR IT TO HAVE BEEN A ROCK OR DEBRIS. I WAS DRIVING IN SAN ANTONIO TEXAS NEAR UTSA BLVD. IN THE TURNING LANE, WAS IN MOTION AT A SLOW SPEED AS I WAS PULLING UP TO A RED LIGHT. THE MECHANIC AT SAFELIGHT AUTO SAID THAT IT HAD TO DO WITH THE ELECTRICAL AND SAVED THE PIECE OF WHERE THERE WAS A SHORT CAUSING THE BLAST. AS I WALKED OUT THE DOOR, A GENTLEMAN ASKED IF THAT WAS MY TOYOTA AS HE WAS THERE FOR THE EXACT SAME ISSUE FOR THE SAME YEAR MAKE AND MODEL TOYOTA.
- NHTSA ID
- 11386049
- Incident
- Dec 19, 2020
- Mileage
- 183,000 mi
Visibility
Filed Jan 6, 2020
TURNED THE REAR DEFROSTER ON AND SMELLED SOMETHING BURNING. TURNED OFF THE DEFROSTER AND THEN COUPLE MINUTES LATER, REAR WINDOW EXPLODED AND TOTALLY BROKE. DID THIS LEAVING MY NEIGHBORHOOD SO ONLY GOING ABOUT 20 MPH. IT WAS ABOUT 53 DEGREES AND RAINY.
- NHTSA ID
- 11297363
- Incident
- Jan 3, 2020
- Mileage
- 126,954 mi
Visibility
Filed Dec 10, 2019
WHEN USING THE REAR DEFROSTER IN THE COLD, THE REAR HATCH WINDOW SHATTERED. COMMON ISSUE AND TOYOTA DOES KNOW ABOUT IT BUT ONLY OFFERED 1 YEAR ENHANCED WARRANTY. WARRANTY IS NOW EXPIRED AND TOYOTA WILL NOT COVER THIS SAFETY HAZARD AS MY CAR IS EQUIPPED WITH 3RD ROW SEATING.
- NHTSA ID
- 11288136
- Incident
- Dec 10, 2019
- Mileage
- 140,000 mi
Visibility
Filed Nov 4, 2019
TL* THE CONTACT OWNS A 2005 TOYOTA 4RUNNER. THE CONTACT STATED THAT WHEN THE DEFROSTER WAS IN USE, THE REAR WINDOW EXPLODED. THE VEHICLE WAS NOT TAKEN TO A DEALER OR INDEPENDENT MECHANIC FOR DIAGNOSTIC TESTING OR REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT AN EXTENDED WARRANTY WAS ISSUED FOR THE FAILURE. THE FAILURE MILEAGE WAS 151,707. *LN*JB
- NHTSA ID
- 11278005
- Incident
- Nov 4, 2019
- Mileage
- 151,707 mi
Visibility
Filed Feb 22, 2019
REAR WINDOW SPONTANEOUSLY SHATTERED WITH LOUD POP IN AN ALARMING FASHION WHILE DRIVING DOWN FREEWAY WITH DEFOGGER ON. APPEARS TO BE ISSUE COVERED IN TOYOTA T-SB-0189-17.
- NHTSA ID
- 11181963
- Incident
- Feb 20, 2019
- Mileage
- 225,000 mi
Visibility
Filed Dec 10, 2018
REAR WINDOW EXPLODES AND SHATTERS SENDING GLASS PIECES AND RAZOR SHARP TINY GLASS SHARDS THROUGHOUT THE BACK COMPARTMENT WITH SOME PIECES MAKING IT TO THE BACK SEAT. SUSPECTED CAUSE IS RELATED TO USE OF THE REAR WINDOW DEFOGGER. OCCURRED WHILE DRIVING 75 MPH ON A HIGHWAY IN RAINY WEATHER. OUTSIDE TEMPERATURE AROUND 40F INSIDE TEMPERATURE AROUND 70F. LETTER TO TOYOTA ALONG WITH REPAIR INVOICES ARE ATTACHED TO THIS COMPLAINT.
- NHTSA ID
- 11160617
- Incident
- Dec 7, 2018
- Mileage
- 111,900 mi
Visibility
Filed Oct 31, 2018
I TURNED ON THE REAR DEFROST IN MY DRIVEWAY. AFTER ABOUT 1 MINUTE, I STARTED TO SMELL A SLIGHT BURNING SMELL. AS SOON AS I SMELLED IT, THE REAR GLASS SHATTERED WHILE THE VEHICLE WAS IN MOTION. I WAS TURNING ONTO HIGHWAY 70 FROM BRIDGEWAY DRIVE IN COOKEVILLE, TN. THE WINDOW SHATTERED COMPLETELY ON HIGHWAY 70 IN FRONT OF MIKE'S MARKET AT ABOUT 7:20 AM ON MY WAY TO WORK. TOYOTA PROVIDED EXTENDED WARRANTY COVERAGE FOR THIS EXACT ISSUE BUT ONLY THROUGH APRIL 2018. I CALLED TOYOTA TO LET THEM KNOW BUT THEY DO NOT EXTEND COVERAGE EVEN ONE DAY PAST THE WARRANTY COVERAGE PERIOD EVEN THOUGH THERE IS A DEFECT ACCORDING TO TOYOTA. THE PROGRAM IS WARRANTY ENHANCEMENT PROGRAM ZG7
- NHTSA ID
- 11144537
- Incident
- Oct 22, 2018
- Mileage
- 196,000 mi
Visibility
Filed Dec 6, 2016
THIS COMPLAINT IS IN REGARDS TO A 2006 TOYOTA 4RUNNER VEHICLE ID # MILEAGE IS 150.000.THE TOYOTA WAS PURCHASED THIS YEAR FROM ROYAL PALM TOYOTA OF FLORIDA ADDRESS: 9205 SOUTHERN BLVD, ROYAL PALM BEACH, FL 33411. THE VEHICLE WAS IN EXCELLENT SHAPE. THE PROBLEM IS THAT ON 11/23/2016 THE VEHICLE WAS PARKED IN ARE DRIVE WITH THE ENGINE WAS JUST TURNED OFF FOR ABOUT 5 MINS AT THAT TIME MY DAUGHTER WAS STILL IN THE IN THE SUV WHEN THE REAR WINDOW SHATTERED COMPLETELY.FOR NO APPARENT REASON.WE REPORTED TO ARE INSURANCE COMPANY WAS ADVISE OF A REPAIR COMPANY PLEASE SEE FILE.AND I HAVE REPORTED TO TOYOTA OFFICE IN TEXAS REPORT NUMBER# THANK YOU PRODUCT_OR_SERVICE: 08/01/2016 ORDER_NUMBER: [XXX] ACCOUNT_NUMBER: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
- NHTSA ID
- 10930196
- Incident
- Nov 23, 2016
- Mileage
- 150 mi
ElectricalVisibility
Filed Oct 21, 2014
DRIVING APPROX 40 MPH TOWARDS HOME AND REAR WINDOW EXPLODED, SHATTERED GLASS ALL OVER. IT SOUNDED LIKE AN M80 IN THE BACK OF MY TRUCK. HAD WINDOW REPAIR GUYS COME AND THEY SHOWED ME DEFROSTER CONNECTORS WERE BURNT OUT. I DID HAVE DEFROSTER SETTING ON AT THE TIME OF INCIDENT. I CALLED TOYOTA BUT THEY WOULDN'T DO ANYTHING TO ASSIST. MY CONCERN WAS IF MY DOGS WERE IN THE BACK, AS WE USUALLY TAKE THEM TO THE PARK, THEY COULD HAVE BEEN SERIOUSLY INJURED. I DID HAVE A MAJOR ANXIETY ATTACK. IF THIS HAPPENED ON THE HIGHWAY IT COULD HAVE EASILY CAUSED AN ACCIDENT. *TR
- NHTSA ID
- 10649091
- Incident
- Sep 11, 2014
- Mileage
- 164,000 mi
Visibility
Filed Oct 21, 2014
DRIVING APPROX 40 MPH TOWARDS HOME AND REAR WINDOW EXPLODED, SHATTERED GLASS ALL OVER. IT SOUNDED LIKE AN M80 IN THE BACK OF MY TRUCK. HAD WINDOW REPAIR GUYS COME AND THEY SHOWED ME DEFROSTER CONNECTORS WERE BURNT OUT. I DID HAVE DEFROSTER SETTING ON AT THE TIME OF INCIDENT. I CALLED TOYOTA BUT THEY WOULDN'T DO ANYTHING TO ASSIST. MY CONCERN WAS IF MY DOGS WERE IN THE BACK, AS WE USUALLY TAKE THEM TO THE PARK, THEY COULD HAVE BEEN SERIOUSLY INJURED. I DID HAVE A MAJOR ANXIETY ATTACK. IF THIS HAPPENED ON THE HIGHWAY IT COULD HAVE EASILY CAUSED AN ACCIDENT. *TR
- NHTSA ID
- 10649090
- Incident
- Sep 11, 2014
- Mileage
- 164,000 mi
Visibility
Filed Sep 10, 2008
FRONT WINDSHIELD ON MY 2006 TOYOTA 4RUNNER HAS CRACKED TWICE FOR NO APPARENT REASON. THIS IS EXPENSIVE AND UNSAFE. I HAVE SEEN SCATTERED INTERNET REPORTS OF 4RUNNER OWNERS REPORTING THE SAME PROBLEM. *TR
- NHTSA ID
- 10241719
- Incident
- Jun 10, 2008
- Mileage
- 51,000 mi
Visibility
Filed Jul 16, 2007
2006 TOYOTA 4RUNNER: VISION PROBLEM EXISTS WHEN VIEWING LIGHTS, I.E. HEADLIGHTS, STREET LIGHTS, TRAFFIC LIGHTS, ETC. THROUGH WINDSHIELD. ALL LIGHTS HAVE A DOUBLE, OR GHOST, IMAGE THAT EXISTS ABOVE THE ACTUAL LIGHT SOURCE. THIS PROBLEM EXISTS ALL OF THE TIME, BUT IS MUCH MORE NOTICEABLE AT NIGHT WITH A DARK BACKGROUND. I HAVE HAD NO SUCCESS RESOLVING THIS PROBLEM WITH THE TOYOTA DEALERSHIP OR THE DISTRICT SERVICE MANAGER. THE WINDSHIELD HAS BEEN REPLACED TWICE AND ALL THREE WINDSHIELDS (ORIGINAL AND TWO REPLACEMENTS) EXHIBIT THE SAME PROBLEM. I HAVE ALSO INSPECTED APPROXIMATELY 10 TO 12 OTHER 2006 AND 2007 TOYOTA 4RUNNERS AND ALL OF THESE VEHICLES EXHIBIT THE SAME PROBLEM. *TR
- NHTSA ID
- 10196477
- Incident
- Jan 30, 2007
- Mileage
- 5,092 mi
Visibility
Filed Apr 20, 2007
EXPERIENCING DOUBLE VISION IN WINDSHIELD OF 2006 TOYOTA 4RUNNER DURING NIGHTTIME DRIVING. *JB
- NHTSA ID
- 10188410
- Incident
- Nov 16, 2006
Visibility
Filed Jan 4, 2007
OPTICAL SAFETY PROBLEM WHEN LOOKING THROUGH THE FRONT WINDSHIELD OF MY 2006 TOYOTA 4 RUNNER: ANY INCREASED LIGHT SITUATION, @ NIGHT OR DURING THE DAY, PROVIDES A DOUBLE VISION OF THE LIGHT SOURCE THAT APPEARS ABOVE THE SOURCE ~ 8 TO 10 FEET @ ~ 1 MILE AWAY. AS THE VEHICLE GETS CLOSER TO THE SOURCE IT CONVERGES DOWNWARD TOWARD THE LIGHT SOURCE UNTIL IT REACHES THE FRONT OF THE VEHICLE WHEN IT ALMOST MERGES COMPLETELY. THIS ACTION ACTUALLY CAUSES ME TO BECOME NAUSEATED WHILE DRIVING PRACTICALLY ANY DISTANCE CAUSING AN UNSAFE OPTICAL VIEW DISTRACTING ME WHILE I'M DRIVING TAKING MY ATTENTION TO THE DOUBLE VISION CONDITIONS. AT TIMES IT IS ALMOST HYPNOTIZING. I HAVE DOCUMENTED THIS COMPLAINT 3 OR 4 TIMES TO THE DEALER AND ONCE TO THE HOME OFFICE VIA EMAIL TO NO AVAIL. I'VE BEEN TOLD BY THE DEALERSHIP THAT THIS CONDITION IS COMMON ON THIS MODEL YET THEY WILL NOT REPLACE THE WINDSHIELD AS IT IS SEEN AS NOT A PROBLEM TO BE REPLACEABLE. NO PERSONAL ACCIDENT HAS OCCURRED YET DUE TO THIS CONDITION. MAYBE OTHER OWNERS ARE EXPERIENCING THE SAME PHENOMENON. *NM
- NHTSA ID
- 10177793
- Incident
- Sep 11, 2006
Visibility
Filed Jul 18, 2006
DOUBLE VISION IN WINDSHIELD WHEN NIGHT DRIVING. *NM
- NHTSA ID
- 10162797
- Incident
- Mar 20, 2006
- Mileage
- 1,550 mi
Body & structureBrakesDriver assistance+8 more
Filed Apr 7, 2006
I RECENTLY PURCHASED A NEW 2006 TOYOTA 4 RUNNER. I HAVE HAD NOTHING BUT MOTOR TRANSMISSION, ELECTRICAL FAILURES. I HAVE ONLY HAD MY VEHICLE FOR 1 MONTH AND ANYTHING AND EVERY THING HAS GONE WRONG. I EVEN HAD TO GIVE MY DAUGHTER CPR ON THE SIDE OF THE ROAD DUE TO CARBON MONOXIDE INHALATION. SHE WENT INTO RESPIRATORY FAILURE DO TO THIS SHE HAS SEVERE ASTHMA. *JB
- NHTSA ID
- 10154778
- Incident
- Mar 6, 2006
- Mileage
- 1,200 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.