Very poorly wired and wires are spliced together which I a fire hazard
2016 Scion Ia
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 17 of 23 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 8 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Electrical System. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Air Bags. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
23 reportsWas getting off work. Started car and Engine system malfunction light, DSC malfunction light, TPMS System Malfunction light, Auto transmission malfunction light, and SCBS malfunction light all turned on. Car was not currently in motion when lights went on. Was in parking lot. Turned car off, and restarted, lights remained…
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Was getting off work. Started car and Engine system malfunction light, DSC malfunction light, TPMS System Malfunction light, Auto transmission malfunction light, and SCBS malfunction light all turned on. Car was not currently in motion when lights went on. Was in parking lot. Turned car off, and restarted, lights remained on. Drove vehicle 6.8 miles home, car was in limp mode. When at home used OBD2 scan tool and got codes P0847 C1031 U0401 B13D3 Cleared codes and unplugged 12 volt battery to reset system. Only engine system malfunction light remained. Parked car overnight and went to dealership next morning. Car drove on highway and car seemed fine. Dealership scan car and received code P0847, tech cleared code and test drove car. Problem can not be reproduced.
TL* THE CONTACT OWNS A 2015 SCION IA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THEY CRASHED INTO A WILD HORSE. THE CONTACT STATED THAT NO AIR BAGS DEPLOYED. THE VEHICLE WAS TOWED AND A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED NO INJURIES AND NO MEDICAL ATTENTION WAS NEEDED. THE CONTACT HAD NOT CONTACTED …
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TL* THE CONTACT OWNS A 2015 SCION IA. THE CONTACT STATED THAT WHILE DRIVING APPROXIMATELY 45 MPH, THEY CRASHED INTO A WILD HORSE. THE CONTACT STATED THAT NO AIR BAGS DEPLOYED. THE VEHICLE WAS TOWED AND A POLICE REPORT WAS FILED. THE CONTACT SUSTAINED NO INJURIES AND NO MEDICAL ATTENTION WAS NEEDED. THE CONTACT HAD NOT CONTACTED THE DEALER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE; HOWEVER, THE CONTACT HAD NOT HEARD FROM THEM AS OF YET. THE APPROXIMATE FAILURE MILEAGE WAS UNKNOWN.
MY CAR HAS UNDER 60,000 MILES, I BOUGHT IT WITH ABOUT 28,000 ON IT AND IT HAS HAD INTERMITTENT ISSUES WITH THE DISPLAY. I WENT TO DEALERSHIP, WHO SAID THE WHOLE INFOTAINMENT SYSTEM NEEDS REPLACED, WHICH IS ABOUT $1200 WITH PARTS AND LABOR. IT HAS BEEN DOING THIS WITH LESS THAN 30,000 MILES ON THE CAR AND HAS GOTTEN WORSE. IT C…
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MY CAR HAS UNDER 60,000 MILES, I BOUGHT IT WITH ABOUT 28,000 ON IT AND IT HAS HAD INTERMITTENT ISSUES WITH THE DISPLAY. I WENT TO DEALERSHIP, WHO SAID THE WHOLE INFOTAINMENT SYSTEM NEEDS REPLACED, WHICH IS ABOUT $1200 WITH PARTS AND LABOR. IT HAS BEEN DOING THIS WITH LESS THAN 30,000 MILES ON THE CAR AND HAS GOTTEN WORSE. IT CAUSES THE DISPLAY TO GO IN AND OUT, WHICH HAPPENS ALSO WITH THE BACKUP CAMERA.
THE VEHICLE WILL INTERMITTENTLY SHUT ITSELF OFF IN THE ROAD FOR NO APPARENT REASON. THE CHECK ENGINE LIGHT AND BATTERY LIGHT WILL DISPLAY ON THE DASH. HOWEVER, WHEN I PUT THE CAR BACK IN PARK AND RESTART THE ENGINE THERE ARE NO INDICATOR LIGHTS ON AND NO CHECK ENGINE LIGHT WHATSOEVER. THIS CAR HAS BEEN LOOKED AT BY 3 CERTIFIED T…
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THE VEHICLE WILL INTERMITTENTLY SHUT ITSELF OFF IN THE ROAD FOR NO APPARENT REASON. THE CHECK ENGINE LIGHT AND BATTERY LIGHT WILL DISPLAY ON THE DASH. HOWEVER, WHEN I PUT THE CAR BACK IN PARK AND RESTART THE ENGINE THERE ARE NO INDICATOR LIGHTS ON AND NO CHECK ENGINE LIGHT WHATSOEVER. THIS CAR HAS BEEN LOOKED AT BY 3 CERTIFIED TOYOTA DEALERS AND NONE OF THE MECHANICS CAN ACCURATELY PINPOINT THE ISSUE. I AM CONCERNED THIS CAR WILL SHUT ITSELF DOWN IN THE MIDDLE OF THE HIGHWAY AND CAUSE A COLLISION. WORST EXPERIENCE WITH A CAR I'VE EVER HAD. SURPRISINGLY NEWER MODEL VEHICLE AND THIS DIFFICULT TO DIAGNOSE. THE CAR MAINLY SPUTTERS AND STALLS AT IDLE OR LOW SPEEDS. WE HAVE TRIED NUMEROUS TIMES TO GET AN ACCURATE DIAGNOSES. NOTHING LEFT TO DO AT THIS POINT EXCEPT REPLACE THE CAR. I FEELS IT IS A DANGER TO MYSELF AND OTHERS ON THE ROAD.
I WAS DRIVING ON THE FREEWAY AND THE CAR IN FRONT OF ME SLAMMED ON HIS BRAKES AND I SLAMMED ON MINE AND THEN THE CAR BEHIND ME HIT ME AND I HIT THE CARIN FRONT OF ME. MY AIRBAGS DIDN'T DEPLOY WHEN HIT FROM BEHIND AND THEN I HIT CAR IN FRONT OF ME . MY CAR IS TOTALED. PLEASE FILE COMPLAINT AND GET BACK TO ME
TRANSMISSION WHINE AFTER USED CAR PURCHASE WITH 91K MILES. TOOK IT TO TOYOTA OF GREENVILLE FOR DIAGNOSTIC. NEEDED A NEW TRANSMISSION. TOOK THE CAR BACK TO RALPH HAYES TOYOTA OF ANDERSON WHEW I PURCHASED AND THEY REPLACED THE TRANSMISSION. SINCE THEN THERE HAS BEEN A TRANSMISSION GRINDING AND SEVERE VIBRATION WHILE IN DRIVE OR RE…
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TRANSMISSION WHINE AFTER USED CAR PURCHASE WITH 91K MILES. TOOK IT TO TOYOTA OF GREENVILLE FOR DIAGNOSTIC. NEEDED A NEW TRANSMISSION. TOOK THE CAR BACK TO RALPH HAYES TOYOTA OF ANDERSON WHEW I PURCHASED AND THEY REPLACED THE TRANSMISSION. SINCE THEN THERE HAS BEEN A TRANSMISSION GRINDING AND SEVERE VIBRATION WHILE IN DRIVE OR REVERSE. I CALLED TOYOTA CUSTOMER SERVICE AND ASKED FOR A BUY BACK. THEY DECLINED. I ALSO COMPLAINED ABOUT THE DEALERSHIP AND THEIR LACK OF CARING AND UNDERSTANDING. TOYOTA CORPORATE DOES NOT CARE. DEALERSHIP KEEPS SAYING THIS VIBRATION AND BEHAVIOR IS NORMAL FOR THIS CAR. IT IS DANGEROUS NOW BECAUSE IT STALLS OUT INTERMITTENTLY WHEN PLACED IN DRIVE OR REVERSE. WHEN IT DOES GO IT LAUNCHES FORWARD. ALSO THE VIBRATION IS SO SEVERE IT WILL SHAKE THE TEETH IN MY MOUTH. I HAVE VIDEO ON MY PHONE OF THE TRANSMISSION ALSO HANGING UP IN GEAR AND THE DEALERSHIP AND TOYOTA CORPORATE DID NOT SEEM TO CARE I HAD PROOF THE NEW TRANSMISSION IS FAULTY. ALSO, THE INFOTAINMENT SYSTEM KEEPS CRASHING AND WAS QUOTED ALMOST $2,000 TO FIX IT. THEY ACKNOWLEDGE THAT'S A COMMON PROBLEM BUT REFUSE TO OFFER ANY ASSISTANCE TO FIX IT. ON TOP OF IT ALL THE BRAKES ARE HORRIBLE AND THEY HAVE BEEN REPLACED AND STILL ARE LOUD AND ACT LIKE THEY DON'T WANT TO STOP. WET CONDITIONS ALSO MAKE BRAKING MORE DIFFICULT. I WOULD ALSO LIKE TO SAY THE PASSENGER SEAT IS SENSITIVE TO WEIGHT AND THE AIRBAG LIGHT WILL TURN TO ON AND THE SEAT BELT WILL CHIME EVEN WHEN NO ONE IS IN THE SEAT. MY CELL PHONE CAN BE SITTING IN THE SEAT AND IT MAKES IT CHIME AND THE PASSENGER AIRBAG ACTIVE.
TL* THE CONTACT OWNS A 2016 SCION IA. ON TWO SEPARATE OCCASIONS, WHILE DRIVING, THE TRANSMISSION ERRONEOUSLY DOWNSHIFTED AND CAUSED THE VEHICLE TO ABRUPTLY DECELERATE. DURING THE FAILURE, A LOUD GRINDING METAL NOISE WAS PRESENT UNDER THE VEHICLE AND AN UNKNOWN WARNING INDICATOR DISPLAYED. ON ONE OCCASION, WHILE DRIVING, THE FAIL…
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TL* THE CONTACT OWNS A 2016 SCION IA. ON TWO SEPARATE OCCASIONS, WHILE DRIVING, THE TRANSMISSION ERRONEOUSLY DOWNSHIFTED AND CAUSED THE VEHICLE TO ABRUPTLY DECELERATE. DURING THE FAILURE, A LOUD GRINDING METAL NOISE WAS PRESENT UNDER THE VEHICLE AND AN UNKNOWN WARNING INDICATOR DISPLAYED. ON ONE OCCASION, WHILE DRIVING, THE FAILURE OCCURRED AND CAUSED A SECOND VEHICLE TO CRASH INTO THE REAR OF THE CONTACT'S VEHICLE. THE DRIVER SUSTAINED NECK, BACK, AND SHOULDER INJURIES. IN A SEPARATE INCIDENT, THE PASSENGER SUSTAINED HEAD, NECK, AND SHOULDER INJURIES FROM WHEN THE VEHICLE ABRUPTLY REDUCED SPEED. A POLICE REPORT WAS NOT FILED. THE CAUSE OF THE FAILURES WAS NOT DETERMINED. LAKE CITY TOYOTA (12059 LAKE CITY WAY NE, SEATTLE, WA) AND THE MANUFACTURER WERE NOTIFIED AND PROVIDED CASE NUMBER: 1909103427). THE FAILURE MILEAGE WAS 30,000.
CAR TRUCK POPS OPEN RANDOMLE WILE DRIVING!
WHEN AT A STOP THE ENGINE STARTS TO SHAKE LIKE IT'S ABOUT TO TURN OFF WE BOUGHT IT WITH 29000 MILES NOTICED IT A WEEK AFTER WE BOUGHT IT AND IT HAS DONE IT A FEW TIMES THE TOYOTA DEALERSHIP COULDN'T FIND ANY CODES TO REMEDY IT. THE CHECK ENGINE DOES NOT COME ON BUT IT DOES SHAKE VIOLENTLY.IT HAS 35000 MILES NOW.I HAD THE THROTTL…
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WHEN AT A STOP THE ENGINE STARTS TO SHAKE LIKE IT'S ABOUT TO TURN OFF WE BOUGHT IT WITH 29000 MILES NOTICED IT A WEEK AFTER WE BOUGHT IT AND IT HAS DONE IT A FEW TIMES THE TOYOTA DEALERSHIP COULDN'T FIND ANY CODES TO REMEDY IT. THE CHECK ENGINE DOES NOT COME ON BUT IT DOES SHAKE VIOLENTLY.IT HAS 35000 MILES NOW.I HAD THE THROTTLE BODY CLEANED AND IT STILL PUTTERS AT THE LIGHT. MOSTLY WITH THE A/C OFF
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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