Why does the car Bluetooth play for a while and then stop?

[VonAdriana]

Because the transmission signal of the car Bluetooth is poor. It may be that the Bluetooth version on the car navigation device is too low, resulting in unstable connection with the phone and disconnection. Below are the relevant introductions: 1. Car Bluetooth discovery: The Bluetooth technology in the car Bluetooth system is a continuation of the Bluetooth technology in mobile phones, with the same transmission system. 2. Car Bluetooth function: Car Bluetooth is an in-car wireless hands-free system designed and developed based on wireless Bluetooth technology. The main function is to use Bluetooth technology to connect with the phone for hands-free calls during normal driving, in order to free hands and reduce the risk of traffic accidents.

[MacDelilah]

Recently, I encountered frequent intermittent issues with my car's Bluetooth and found several common causes. The most frequent culprit is the phone's power-saving mode, which automatically shuts down background music apps. Another issue is the car's Bluetooth module being outdated and incompatible with the phone, especially with Android devices. I also noticed that driving near high-voltage power lines or signal towers often causes disconnections, likely due to electromagnetic interference. Additionally, an overloaded car system—such as when memory is full or when navigation and Bluetooth are running simultaneously—can lead to crashes. Whenever this happens, I first disable the 'auto-close' option in the phone's Bluetooth settings and then restart the car's system, which usually resolves the problem.

[VonOlivia]

As someone who frequently modifies car infotainment systems, I've found that Bluetooth interruptions primarily involve issues at the transmission and hardware layers. For example: when the A2DP protocol transmits music with insufficient bandwidth, disconnections occur if the distance between phone and car unit exceeds 10 meters or there's metal interference; weak CPU processing power in the car unit causes lag when handling both navigation and music simultaneously; Bluetooth chips may overheat and trigger protection mechanisms - I've often observed automatic shutdowns after summer sun exposure. During one test with monitoring equipment, I noticed that voltage instability causing current fluctuations exceeding 0.5A in the Bluetooth module would activate protection. Solutions include updating car unit firmware, closing background phone apps, and lowering the Bluetooth AVRCP version in the phone's developer options.

[DiAlan]

Last time on a long drive, the Bluetooth kept disconnecting—so annoying! Later at a service area, I found out the metal edge of my phone case was interfering with the signal. Removing the case fixed it. Also, using a low-quality car charger while charging can introduce electrical noise that makes Bluetooth act up. Android users should pay special attention to app permissions—if 'background running' is disabled, music stops when switching apps. Now I make it a habit: clear phone background apps, turn off power-saving mode, and lock the music app before driving. If issues persist, resetting the car's network settings usually solves it 90% of the time.