NHTSA Complaint #11023931 — 2017 TOYOTA COROLLA

I JUST PURCHASED A 2017 COROLLA XSE IN FEB 2017. THE FIRST TIME IT HAPPENED I HAD THE CRUISE CONTROL ON AND WAS TRAVELING TO WORK AT 05:15, AND I CAME TO AN OVERPASS AND ON THE WAY DOWN THE NORMAL OVERPASS OVER A CROSS STREET, I HEARD THE ENGINE REV AND I LOOKED AT THE TACH, AND IT WAS AT 5000 RPM. I WAS STARTLED. THE SAME THING HAPPENED AT THE NEXT OVERPASS. THIS TIME IT WAS 4000 RPM ALMOST AT THE BOTTOM OF THIS RATHER SHORT AVERAGE DOWNHILL. THIS IS STILL HAPPENING, BUT OCCASIONALLY IT DOES NOT. HOW COULD THIS POSSIBLY BE CORRECT. I CAN CONTROL THE SPEED QUITE NICELY WITH MY FOOT ON THE ACCELERATOR WITHOUT HARDLY ANY VARIATION OF MY RPM'S. THIS JUST DOESN'T MAKE SENSE. I AM NOT TALKING ABOUT A LONG DOWNHILL ROAD THAT HAS A LANE FOR TRUCKS ON THE RIGHT, WHERE THEY WOULD HAVE TO DOWNSHIFT TO MAINTAIN A SAFE SPEED, THIS IS JUST OVERPASSES ON A FREEWAY SYSTEM. I ASKED MY SALESMAN, AND HE SAID THAT IT WAS PROBABLY NORMAL, AND I SAID HOW COULD IT BE NORMAL FOR THIS THING TO REV AT 5000 RPM ON A HOUSTON FREEWAY? I ONLY HAVE 5000 MILES ON THIS CAR. THIS WILL DEFINITELY AFFECT THE MILEAGE. I AM BESIDE MYSELF AT THIS POINT.