I have a 2022 Expedition Max Limited, Stealth with Sync4a and the 15inch screen. Last night, I remote started the vehicle, unlocked it as I got close, got inside and started the car. As soon as it started, the most horrendous sound imaginable started coming from the speakers (I think). It was a bit like a tornado siren, very scratchy, high pitched, and super loud. I turned off the car, got out, turned the car back on, back off, tried remote start again, turned off alarm sensors, tried adjusting volume, etc. but nothing would stop the noise. After about 5 minutes of trying to get this to stop, I decided my only chance may be to disconnect the battery... unfortunatley I had no tools with me, so I opened the hood, kind of jiggled the negative wire on the battery and the noise stopped. I started the car and drove home normally... I'm a bit concerned that this could happen again and not sure if me messing with the battery wire was just coincidence or somehow actually helped. Way too loud to even think of trying to drive it and not sure what my wife would do if this happened to her.. Any ideas??
I've tried to attach videos I took while this was happening. The first video is when it was first starting and the second video near the end (noise became constant vs beeping through most of the event).
Video 1 - https://www.youtube.com/shorts/4ZIXhTgQwcc
Video 2 - https://www.youtube.com/shorts/keGWAYMRGXs
I've tried to attach videos I took while this was happening. The first video is when it was first starting and the second video near the end (noise became constant vs beeping through most of the event).
Video 1 - https://www.youtube.com/shorts/4ZIXhTgQwcc
Video 2 - https://www.youtube.com/shorts/keGWAYMRGXs