Guys, I have a 2001 S-40 w/ 110,000 miles on it.. When I start the car , no light appears on the dash..But as soon as I put my foot on the brake a light comes on the dash..It is an exclamation mark(!) in a circle that has lines radiating out from it.. I think it has something to do with the brakes but don't know and I can't find it in the manual... Any ideas???? Thanks

 

It's the bulb failure warning light. It comes on when the brake pedal is pressed if there is a defective brake light bulb. Check your brake lights - either a burnt out bulb or a bad connection caused by corrosion in the socket.

 

Perhaps a dead bulb? But I am not sure.

- Goat

 

It means you're going to die.

No, it's the brake light out. Mine did this once but it stopped on its own...

 

Guys its not for bulbs, it is the low brake fluid warning light.
Get the fluid topped up asap, and if it comes on again, you've got a leak from somewhere.

 

You are wrong.

If the brake fluid is low (or other brake issues) a light will come on that says "BRAKE"
The exclamation point with the radiating circle is a brake light bulb failure.

Source: (halfway down the page)
http://new.volvocars.com/ownersdocs/...0_02a.htm#pg21



Bulb failure warning light

The light will come on if one of the brake light bulbs are defective when the brake pedal is pressed.

Check the fuse and bulb. See sections "Replacing bulbs" and "fuses".

 

Brake failure warning light

If the light comes on while driving or braking, stop immediately, open the hood and check the brake fluid level in the reservoir. See page 116 for reservoir position.
If the control lamp still stays on, the EBD (Electronic Brakeforce Distribution) is not working.
Drive to your Volvo dealer. See ABS control lamp and also page 73.

Canadian models are equipped with this warning light:

 

It's the bulb failure warning light. It comes on when the brake pedal is pressed if there is a defective brake light bulb.I think you can use Xenon Bulb for solve your problem.

 

The exclamation mark with circles is brake fluid on UK cars, mine doesn't have that BRAKE light. Guess he might have checked his bulb by now anyway!

 

I had this light on my dash recenty...had a brake light out, fixed brake light... light's off.

Easy as that.

 

What if the light went off by itself and never came back, during the drive?

 

Check your lights. If they work, don't worry about it. If one is out, replace it.