Why is the "Hey Mercedes" voice command not responding?

[LeHaley]

The reason is that the voice control trigger button was not pressed. It can be used once activated. Below is an introduction to the "Hey Mercedes" feature: Functions: You can chat with AI, navigate, control the air conditioning (adjust temperature), play music, switch radio stations, change CDs, skip songs, defrost the windshield, search for music, open the sunroof or windows, and more. The available functions of "Hey Mercedes" vary depending on the Mercedes-Benz model. Language: It supports Mandarin, Cantonese, and Sichuan dialect for commands and chatting. Other languages are currently not supported and may be added in future updates.

[VioletLee]

When I first got my new car, I also encountered the voice assistant not responding. It's usually due to incorrect settings, such as the voice activation switch being off or the microphone being blocked by debris. First, try restarting the car's infotainment system by finding the restart option in the settings menu—it might just take a few minutes to resolve. If that doesn't work, check your network connection, as some features require stable data service to respond. Another common issue is excessive ambient noise or speaking too softly; try raising your voice in a quieter place. If you still can't get it to work, it's best to visit the dealership and have a technician scan for software bugs with a computer and check for hardware faults. Make it a habit to clean the interior regularly, as dust buildup near the microphone can affect sensitivity. Avoid fiddling with it while driving—wait until you're parked to try again.

[DeArcher]

As a tech enthusiast, I've figured that unresponsive voice systems are often due to software conflicts or hardware issues. It might be that the MBUX firmware needs updating—connect to the car's internet to check for new versions, as older systems are prone to bugs and freezing. A damaged or poorly connected microphone module can result in no input signal; try testing responsiveness with different voice commands. Once during a repair, I discovered that network service interruptions can also be a hidden cause, as cloud-dependent commands fail in weak signal areas. It's advisable to use a diagnostic tool connected to the OBD port to read fault codes or perform a full system reset to clear the cache. Don't forget to check for battery voltage fluctuations affecting the infotainment system's stability—unstable power supply can easily cause voice functions to fail, so pay extra attention to the power system during routine maintenance.

[AutumnMarie]

A malfunctioning voice assistant while driving can be dangerous. Trying to adjust navigation or air conditioning while distracted by buttons increases the risk of accidents. The causes vary—perhaps voice recognition was accidentally disabled in settings or sensitivity was set too low. Don’t hesitate; pull over safely and check the vehicle’s information screen. Re-enter settings to reactivate the feature. Address the issue promptly to avoid long-term risks, and contact your dealer to schedule an inspection for potential deeper electrical problems. Avoid attempting fixes while driving—wait until safely parked. Regularly review the user manual to prevent setup errors.