There are 1 stored owner reports matching the engine leading-label group for the 2012 Toyota Sequoia 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)TOYOTA HAS DEVELOPED WHAT IS BECOMING AN INFAMOUS OIL LEAK ON THEIR 5.7 V8 ENGINES THAT IS COMING FROM THE CAMSHAFT TOWER (CAMSHAFT HOUSING SUB ASSEMBLY). APPARENTLY IN PRODUCTION THEY USE A SILICONE WHERE THIS ATTACHES TO THE HEAD AND IN MANY CASES THEY DID NOT GET ENOUGH SILICONE. RESEARCH HAS SHOWN ME THAT MANY, MANY OF THESE HAVE THIS ISSUE AND THAT WHEN THE VEHICLE IS FAIRLY NEW THAT TOYOTA WILL STAND BEHIND IT IN LIMITED CASES. MY VEHICLE HAS 150,000 MILES ON IT SO THEY WILL NOT DO ANYTHING TO STAND BEHIND IT AND CLAIMED TO NOT BE AWARE OF THE PROBLEM. I HAVE CONTACTED SEVERAL DEALERSHIPS AND ALL OF THEM STATED THEY WERE WELL AWARE OF THE PROBLEM. I BELIEVE THIS TO BE A SAFETY ISSUE AS MINE HAS STARTED TO LEAK, IT DOES SO ON TO THE EXHAUST MANIFOLD AND HAS A STRONG BURNING SMELL EACH TIME I DRIVE EVEN IF ONLY A SHORT DISTANCE. THIS COULD EASILY CAUSE A FIRE. WHILE I AM NOT AWARE OF ANY OF THESE CAUSING A FIRE IT IS A VERY COMMON ISSUE TO THE POINT THAT I FOUND A LAW FIRM THAT WAS LOOKING TO DO A CLASS ACTION LAWSUIT BECAUSE OF IT. I CAN PROVIDE PICTURES IF NEEDED BUT THEY CAN BE SEEN ALL OVER THE INTERNET.
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.