GM Service Manual Online
For 1990-2009 cars only

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If your vehicle has the systems monitor, the CHECK OIL LEVEL light comes on for five seconds as a bulb check each time the ignition key is turned to ON.

If the engine oil is more than 1.0 quart (0.9 L) low and the engine has been shut off for at least eight minutes, the CHECK OIL LEVEL light will come on and a chime will sound the next time you start your vehicle.

If the CHECK OIL LEVEL light comes on, the engine oil level should be checked at the dipstick then brought up to the proper level, if necessary. See Engine Oil .

On vehicles with a DIC, the OIL LEVEL LOW message will come on. See DIC Warnings and Messages for more information.