What is the cause for a high-pitched alarm sound that comes through the stereo speakers?
Every now and then, just at random times, a high pitched sound comes through the car's built in stereo speakers. It sounds almost like an amber alert or PBS alert coming through as it sounds on TV. Lasts a few minutes, and then stops by itself. Is this anything to be concerned about? No indicators, (i.e. dash messages, etc. show any reason ) for this alarm.
Sounds like the OnStar.There could be a malfunction that is making it activate.
I have that beeping noise too every time I start the car and some time randomly at anytime and even worse I use the car for limousine it really annoys me when it's beeping while I have customer in the car. Sometimes they asked if if the car gonna blow up lol. I have 2014 xts btw
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