All the other answers I have found states that it relates to low tire pressure.
Yes
Low tire pressure
upside horseshoe on the car
Tire pressure warning light.
Low tire pressure (below 32 psi) on one or more of your tires.
That is not a horseshoe. It represents a tire. The light is on because one or more tires is low of air pressure. All this is listed in your owners manual.
The warning light in the bottom area of your tachometer that looks like a circle ( gear ) with an exclamation mark in the middle is your " check transaxle " ( transmission ) warning light . If the light stays on take your vehicle in for servicing
I'm have the same light and am seeking the same answer but I believe it is the low tire pressure light.
Maybe its a low tire pressure warning. Check inside the owners manual it will tell you what the intrumens cluster is about
The exclamation point warning light on a BMW 650I indicates low tire pressure.
It's the tire pressure warning light.
handbrake light
that is your low tire pressure indicator, check your air pressure in all tires, including spare