How do I turn off the low tire pressure and change oil light in my 99 olds alero

The TPS sensor may be dirty or defective...be sure all tires are above 33 psi...

{: ) The 2002 Oldsmobile uses the TIM system. Here is an overview of how it works:
The tire inflation monitoring (TIM) system detects the differences in tire rotation speeds that are caused by changes in tire pressure. The TIM may not alert the driver if the pressure in more than one tire is high or low. The TIM also may not operate properly if the spare tire is in use.
The TIM system can alert the driver when a large change in the pressure of one tire exists. The system only detects a low pressure condition while the vehicle is being driven.
The LOW TIRE PRESSURE indicator turns ON in the instrument cluster if the tire pressure in one tire becomes 12 psi (55 kPa) lower or higher than the other 3 tires and the ignition switch is in the ON position. The message does not appear if more than one tire is low or high, or if the system is not calibrated properly. The system does not inform the driver which tire is low. In order to clear this message, equalize the tire pressures in all 4 tires and perform the Tire Inflation Monitor Resetting. In addition, the indicator may come ON if a low voltage condition is present.

In other words, this is not like the TPM (Tire Pressure Monitoring) system that is being used in later model vehicles, wherein the TPM sensors are inside the wheel, integrated to the tire valve. The TPM sensors detect changes in tire pressure and temperature, and sends out radio signals to the RCDLR, to be decoded by the BCM and the instrument cluster.

You need to reset the oil light to do this turn the ign. on the push the accelerator pedal to the floor 3 times with in 10 seconds then turn ign. off this should take care of that problem , as for the tire pressure light the tire pressure sensors need to be re calibrated this takes a special tool so you need to take it to a respectable tire facility ... Good Luck

so add air to your tires and change your oil or have you done that????

Is your security light on?

when you open the drivers side door you need to remove a panel door that will allow you to access the fuse box locate the the red button to the left side and press it a couple of times until you see your tire light flash after it starts to flash hold it in for a couple of seconds and you will hear a chime 4 times and you light will be reset you need to have your key turned on but not running to be able to do this.

If you mean the change oil soon light............ Open the fuse panel; on the side of the dash by drivers door. turn on key but not far enough to start car.
Press the red reset button in the fuse panel until the oil light flashes , release the button and then press it again.
It has been a while since I have done this on an alero , so if you have your owners manual , it might be a good idea to read the instructions in there incase i have it wrong. By the way , the low tire pressure light works the same way.

I'm fighting problem #1 right now myself... I'll let you know if I find an answer.

Anytime you get the Low Tire Pressure light you have to reset it. There is a panel on the driver's side of the dash, facing the door. So you have to have your door open to get to it.You are looking for the red button.


From the 1999 Alero manual:

"To reset(calibrate) the system, turn the ignition switch to ON. The RESET button is located inside the drivers side fuse panel. Press and release the RESET button.

The CHANGE OIL light will begin to flash. Press and release the RESET button again. The CHANGE OIL light will go off, and the LOW TIRE PRESSURE light will start flashing. When the LOW TIRE PRESSURE light is flashing, press and hold the RESET button until the chime sounds."

To reset the low tire pressure light, take off the fuse panel located on the driver's side when you open the door it should be right there. There is a red reset button hold it for 10 secs then let go and push it again which will cause the low tire pressure light to flash, then hold the button for an additional 5 secs or until you three beeps then it will go off. The same goes for the change oil light as well. Hope this helps.

Turn the key to On Position. (Do not turn car on. Open driver side and open the Fuse Panel.
1.You will see RED RESET button hit it twice. (The Check Tire Pressure Light will flash.)Now
2.Now, press and hold the RESET switch again until you hear the chime sound.
3.The Tire Pressure light will remain on until you hear 5 chime sound. Until the Light disappears.
*Complete*