What are the reasons why the one-button start sometimes doesn't respond?

[SanMia]

The reasons why the one-button start sometimes doesn't respond are as follows: 1. Check if the key is nearby, as the one-button start relies on the key for sensing, and it won't start without the key. 2. Check for operational errors. If you only press the button without stepping on the brake, the car will power on, but the engine won't start. Another scenario is not holding the button long enough or not pressing it all the way down. 3. The gear is not in the P (Park) position. "Sensing issues": 1. Frequently placing the car key near electronic devices like phones, computers, or TVs can cause interference with the low-intensity radio waves in the key, or if there are strong radio waves nearby, such as from TV towers, airports, or power plants, the one-button start may "fail." 2. The car key battery is low: If the key's remote control distance shortens or sensing becomes less responsive, it's a sign that the key battery is running low. In a low-battery state, the one-button start function won't work properly, and the battery should be replaced as soon as possible. 3. Car malfunction: In extreme cases such as fuel system issues, dead battery, or short-circuited electronic components, contact the 4S store staff directly.