I own a buick lesabre limited 2000 and it was ok but suddenly in the screen it started to show that the oil level was low.. i checked the oil and it was low then i add some more but the screen still says its low now it says its on 1% and i dont want to ruin the car what should i do?

Check your engine oil level, when the oil level is low, braking suddenly causes the oil to surge away from the oil pump pickup in the sump and will cause the light to come on. Top up the engine oil as soon as possible or you will end up with a very expensive repair job

You have a blowin head gasket, Verry costly to have repaired, Plan on $2000 end up.

yes cange oil sending unit

Ok what your describing is your Transmission not shifting between gears so low or no transmission oil means a slow car and at risk at damaging it so ckeck the oil level and if you have got full oil it it then you will need to take it to a mechanic.

If oil level is ok and seems to run normally there may be an issue with the oil level sensor located in the oil pan.

Could be two things, your oil pump pick tube is clog, oil pan would have to be drop to check, or your camshaft bearing worn causing low oil pressure,I would not say piston rod bearing or main bearing, cause there's no knock noise. You will have better oil pressure when cold due to oil much thicker. so I would forget about a bad oil pump.

It's on the housing the oil filter is screwed on to.

If the oil light is on, Don't drive your car until you've checked the oil level .
The oil light is an indicator that warns you when the oil level has dropped to an unsafe level and will not allow proper oil flow thru the motor because the oil pressure is dropping.

Don't take a chance! Check the oil level. Make sure it's between the full and add 1 quart line. If you don't see anything on the dipstick, it's really low... If you run your car with low oil, you're going to freeze up the motor.

If the oil level is ok and the oil light is still on, have the pressure sender checked to make sure there's proper oil pressure. The light will stay on if there's a problem..

Water in fuel?