an electrical problem like a brake light or something being out
Usually, " warning!!!"
The exclamation mark on any sign is an alarm or warning. With a fire symbol, the sign is warning of combustibles nearby.
You have a light bulb out. Maybe the headlight?
A triangle with an exclamation point is the usual symbol on Microsoft Windows systems for an "exclamation" event. This typically indicates a system event notification that can be an error or needs human intervention.
Low tire pressure.
Do you mean this: ~ It's called a tilde.
caution.. usually you have a flat tire or low air pressure.
If it is a tire with an exclamation point it means one of more tires is low of air pressure. It may also mean something else. Your owners manual will tell you exactly what it means.
It's a reminder that some kind of service is due.
its the low tire pressure warning. check your tires
it means your day time lights are on.
You have a tire low on air.