Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
When the low coolant indicator comes on, the engine shutdown warning light and audio alarm will also come on. When the engine shutdown warning light comes on with the audio alarm, the engine will shut down in approximately 30 seconds. Once the ignition key has been cycled, the engine will restart and run for 30 seconds. This will continue to happen until the low coolant indicator issue is resolved.