My 2006 Chevy impala 3.9L oil pump failed, the thing is that my oil light never came on, i checked my oil almost every weekend sometimes twice a week and without notice my car suddenly jerked a few times and cut off, i had the car towed to the shop it it appears my engine blew up, can you please explain how this could happen, why did my oil sensor come on to inform me that the pressure was low so i could have pulled the car over and not destroyed my engine, now I'm out of $3,500

SOURCE: TPMS on 2006 Chevy Impala

I have an 05 impala and there is a setting in the Radio to reset the oil life and TPMS system, I'd look in the owners manual to see how to access this feature on the 06 but it should be there.

SOURCE: Reset my engine oil low in 2007 chevy impala

you sould be able to reset that from the dash ,these options beside the dash go to the end and when you get to oil and % press on the checkmark and that would do the trick.

SOURCE: Replacing Oil Pressure Sensor.

Usually near the filter.

SOURCE: OIL PRESSUE LOW

You probably have a bad oil pressure sending unit or a bad connection to it.

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SOURCE: A light comes on in my car that says oil pressure

If the light is only turning on during acceleration or deceleration and then goes off, this is normal. If the light is constant, and you are sure you have oil that is up to the "full" or "max" level on the dipstick while hot, then it might point to a faulty oil pump or worn gaskets that will no longer prevent the oil from staying in place in the engine. Is this light accompanied by a check engine light. If so what is the code. You may also have a faulty oil sensor. Hope this helps