There are 1 stored owner reports matching the engine leading-label group for the 2016 Scion iA in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 1 of 1 matching reports.
Open the full vehicle complaint log (all categories)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
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.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.