Change Oil message light

On most models, you have to reset the "change oil" light after completing...Your owners manual might tell you how...if not...try turning your key to "on"...(not start) then depress the gas pedal 3 times...the light will flicker and go off if completed correctly. Hope this helps.

You must reset the oil change due message, refer to your owners manual for instructions on how to do this. If you don't have the owners manual you can download one free here

it wont go away because their is a mechanical problem and or problem with oil change [ not enough oil wrong filter etc ] will need to have vehicle scanned for the fault code to determine the problem most auto stores offer this service for free

You should change your oil every 3months to a year depending on how much you drive.

Check your oil monthly.
The oil light is for stupid people who don't know anything about vehicle maintenance.

GM OIL LIFE SYSTEM - RESETTING
Reset the oil life monitor when the oil has been changed, use the following procedure.
1. Turn the ignition key to the RUN position.
2. Fully push and release the accelerator pedal 3 times within 5 seconds.
3. If the Change Oil Soon light flashes, the system is resetting.
4. Start the vehicle.
5. The oil life will change to 100%.
6. If the Change Oil Soon light comes back on, the system has not reset. Repeat the procedure.

Do you mean the "Oil" light or the "Oil Life System" light?
.
If the oil light is on, you need to stop operating the engine and have it checked to find out why the light is telling you that there is no oil pressure.

If you mean the Oil Life light, Then here are the instructions:

How to Reset the CHANGE ENGINE OIL Message

1. With the ignition key in RUN but the engine off,

fully push and release the accelerator pedal slowly

three times within five seconds.

2. Turn the key to OFF.

If the CHANGE ENGINE OIL message comes

back on, the engine oil life monitor has not reset.
Repeat the procedure.

You can also download a PDF version of your owner's manual for free.
2000 Pontiac Montana Owner's Manual

Hi!!

The person that changed the oil should have resetted the light.

Just drive to an AutoZone store, ask for somebody to check your vehicle computer codes, once they check them up, ask them to reset the change oil soon light, they would do this at no charge. This is a free service they offered to all their customers.

Don't forget to rate this post. Good luck!!

Change your oil pressure sending unit(switch)

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/sean_54c3a3dc48a7773c

have you tried changing the oil sending unit they can get bad also make sure wire to sending unit did not get pulled off

This info should be in your service manual. It usually involves turning the key in the "on" position several times very quickly. Hope this helps.