Hi Guys !

Got a new one for the forum. (or at least couldn't find this in the search anywhere)

Driving along about 35 mph and suddenly the kick down 3rd gear orange arrow lights up on the dash and there's a continuous sound as if the volvo was a small airplane and the autopilot was warning of an imminent crash.

Deselect the button on the side of the shifter and the orange light stays on but the beep goes away.
Press the button again and the orange light still stays on and the returns.

Appears to operate as a 3-speed transmission in both settings, with the annoying beep or without. but I'd have to give it a better test run, there's a chance it's a 4 speed box with the orange light and no beep sound and a 3-speed box with the light and the beep.

Reved up the engine and went up to 60mph and the problem went away and I had my 4-speed gear box back.

Next day, same location, same speed, same problem, only I couldn't get it to clear. Turned off the ignition, started again and the problem is still there.

Is this a relay ? Solenoid sounds like it's 'clicking' when the button is pressed.

has anyone ever run into this ? kind of surprised me with the beeeeeep sound.
I've heard of the kick down solenoids wearing out and users on the forum not being able to get their transmissions to a 3-speed box only, but never this where it activates while you are driving and makes a noise like it is going to self-destruct.