Why is there no sound when playing music via Bluetooth in a Cadillac?
2 Answers
The reason for no sound when playing music via Bluetooth in a car is that the volume on either the car or the phone is not turned on, or there is an incompatibility between the music playback program and the pairing code. The reasons are explained below: Volume not turned on: When the volume on the car's multimedia system or the phone is not turned on, there will be no sound when playing music via Bluetooth. While playing music, press the volume button on the phone to adjust the volume. Set the media volume to the maximum, then adjust the volume on the car. Incompatibility between program and pairing code: Some phones' music playback programs are incompatible with certain car models' pairing codes, so they can only make calls but not play music. In this case, the Bluetooth playback frequency band needs to be changed. If the car's Bluetooth multimedia music is not enabled, it needs to be turned on in the settings. If the media audio on the phone is not turned off, it may cause signal interference with the Bluetooth function. These situations can all result in no sound when playing music via Bluetooth in the car.
I've encountered several instances where there was no sound when playing music via Bluetooth, especially in Cadillac vehicles. It might be due to unstable Bluetooth pairing—ensure your phone and the car show a fully connected status, not just in discovery mode. Sometimes the phone volume operates independently; simply increasing it or restarting the phone may help. Another common issue is incorrect audio source selection in the vehicle's sound system. Navigate to the audio settings on the CUE infotainment screen and select Bluetooth as the input source, avoiding accidental switches to radio or USB. Software bugs can also be the culprit, such as outdated systems causing background conflicts—a head unit restart (by holding the power button for 10 seconds) often resolves this. If these steps fail, hardware checks may be needed, like inspecting for a loose Bluetooth module or antenna issues. Always prioritize safety—address these adjustments only when parked, not while driving.
