Valley Plate Leak. The Valley Plate Leaks are notorious on this vehicle. There have been several forums about it.
NHTSA ODI 11448300
Home · 2011 Lexus IS F · Complaints
These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.
2 of 14 complaints match · Engine · clear filters
Valley Plate Leak. The Valley Plate Leaks are notorious on this vehicle. There have been several forums about it.
NHTSA ODI 11448300
FUEL IS NOT DELIVERED TO FIRING CHAMBER DUE TO FAILURE OF FUEL PRESSURE SENSOR. THIS WILL CAUSE ENGINE TO SHUT OFF WHEN ON THE ROAD. NO OBD-II CODE IS PRESENT SINCE THE FAILURE OF THE FUEL PRESSURE SENSOR WILL PUT THE CAR IN PROTECTED MODE, NO CODE CAN BE READ. WHEN ENGINE IS SHUT OFF, IT WILL HAVE NO POWER TO STEERING OR BRAKE SYSTEM, PUT DRIVER IN A VERY DANGEROUS SITUATION. I WAS LUCKY ENOUGH TO FIND OUT AFTER ARRIVING HOME. THE PROBLEM APPEARED THE NEXT MORNING.
NHTSA ODI 11307324
Working with the data? Download all 14 complaints as CSV · fetched from NHTSA July 25, 2026