Toyota Sienna gas gauge stuck on full after recent fuel fill up on Toyota Sienna

Some Toyota Sienna owners report experiencing issues with their gas gauge getting stuck on full after a recent fuel fill-up. These problems may stem from a faulty fuel sending unit, a blown fuse, or damaged wiring, which can lead to inaccurate readings. Additionally, some owners find that the sender unit, part of the fuel pump, may malfunction, causing the gauge to constantly display full. Reports indicate that after driving a certain distance, the gauge may remain stuck until a service appointment is made, at which point it often begins to function correctly again. Other users have noted that the gauge can show full for an extended period before dropping suddenly, suggesting potential accuracy issues. To troubleshoot this problem, it is recommended to perform an instrument cluster self-test, check the fuel sending unit, or inspect the gauge's wiring for any faults.