There are 1 stored owner reports matching the engine leading-label group for the 2019 Toyota Sienna 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)I PULLED ONTO A HIGHWAY AND REACHING ABOUT 25 MPH THE 2019 SIENNA HESITATED FOR AT LEAST 10 SECONDS AS IF IT WAS NOT GETTING GAS. I PRESSED THE GAS WANTING TO GET OUT OF THE WAY OF TRAFFIC AND IT JUMPED SLIGHTLY BUT WOULD NOT GO. THEN IT KICKED IN WITH A FEW HESITATIONS AND TOOK OFF. ANOTHER 100' OR SO, IT DID IT AGAIN. PRIOR TO THIS I HAD ALREADY BROUGHT IT TO TOYOTA COMPLAINING THAT THERE IS A HESITATION WHEN THE VAN IS NOT WARMED UP YET BETWEEN 20-40 MPH. IT IS ONLY SLIGHT, BUT NOTICEABLE AND FEELS LIKE IT IS NOT GETTING GAS. THE VAN DOES THIS EVERY TIME AFTER IT HAS BEEN SITTING LONG ENOUGH TO COOL DOWN. THE LONG HESITATION ONLY HAPPENED TWICE SO FAR (DANGEROUS ENOUGH!), THERE HAVE BEEN A FEW SHORTER ONES, AND THEN THERE IS THE EVERY TIME SLIGHT HESITATION. TOYOTA HAS TOLD ME NOTHING SHOWS IN THEIR DIAGNOSTICS AND THEY DO NOT KNOW WHAT IS WRONG. THEY TRIED CUTTING THE POWER TO THE COMPUTER TO RESET THE MEMORY, BUT THIS DID NOT CHANGE ANYTHING.
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 29, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.