I have a light that has come on the dash it is the ! (exclamation point) ..can you tell me what it means. 2008 3 series

Yellow exclamation point on dash means low tire pressure.

could mean anything from your windshield washer fluid is low to a bulb is out on the car..im pretty sure its just a warning light, u have to start up the power in the car (ACC) but not actually turning the engine..then use the button on the end of the blinker wand to access the "check control" this should tell you whats up

low tire... if you look close the bottom is flat

Does it look like the one toward the bottom of this page? http://www.aa1car.com/library/warning_lights_lexus.jpg
I'm pretty sure that is a tire pressure warning light. You can find a key for this in the owners manual if you have it still.

Hi !
The Yellow Exclamation Point is the indicator of malfunction in the Power Steering system.
1. Check the Tension of the Power steering Belt.
2. Check Oil level of Power steering , this must be below MIN level.
This is in a white bottle next to Break fluid.

Regards
Berry

hi from uk this light is the tyre pressure monitoring system it is telling you that one or more tyres pressures are under inflation so! if you have not checked them weekly ? for your own safety you should may i suggest you check and inflate to correct pressure of all tyres inc spare ! obviously if one tyre is very low ? keep an eye on it? in case it has a slow leak/puncture ? ps the horse shoe is a low pressure tyre symbol ? best wishes from uk and merry xmas !

It should be letting you know that you have a tire pressure problem. If you still have the owners manual read it. It will explain what to do, what to look for and how to reset the light if need be.

The exclamation point does not mean anything , I assume your engine light is on,then that means you have a problem with the engine /emissions .you need to it diagnosed with a code reader.

thats your TPMS light, Tire Pressure Monitoring System. The light means that one of your tires is low on air, so check them all and fill them to the specified amount, which will be located on the drivers side door jamb.