Experiencing issues with your 2024 Toyota Sienna Hybrid key fob can be frustrating. One owner encountered a peculiar situation after taking delivery of their 2024 Sienna XLE Hybrid, which initially came with only one key fob due to the chip shortage. This owner shares their experience and seeks potential solutions regarding a recurring key detection problem.
The problem arose after using the Toyota app to unlock the vehicle. The sequence of events unfolded as follows: using the app to unlock the doors, entering the car, and closing the driver’s door. Subsequently, the owner’s wife would enter with the physical key fob. After she placed her purse (containing the fob) in its usual spot and closed the passenger door, attempting to start the Sienna Hybrid became problematic. Pressing the start button after applying the brake pedal resulted in a “key not found” message displayed on the dashboard.
Initially, even removing the key fob from the purse did not resolve the issue. The “key not found” message persisted. However, holding the key fob directly next to the ignition button allowed the car to start without further issue. A battery test of the key fob showed a reading of 3.2 volts, suggesting the battery was not the primary cause of the problem. Despite attempts to replicate the condition at the dealership, the issue could not be duplicated, leaving the owner without a clear diagnosis or solution. The dealer has been hesitant to replace the key fob without witnessing the problem firsthand.
This 2024 Toyota Sienna Hybrid owner suspects a possible conflict or interference between the Toyota app’s unlock function and the key fob detection system. Could using the app prior to entering the vehicle be causing a temporary confusion or disruption in the key detection system? While the exact cause remains undetermined, this experience highlights a potential anomaly for 2024 Toyota Sienna Hybrid owners to be aware of and possibly investigate further with their dealerships. Has anyone else experienced similar key fob issues with their new Sienna Hybrid after using the Toyota app?
