How much fuel is left in tank when low light comes on 2005 Chevy trailblazer?

The low fuel light on a 2005 Chevy Trailblazer typically illuminates when there are approximately 1 to 2 gallons of fuel remaining in the tank. It's not an exact amount and can vary slightly depending on driving conditions and the specific vehicle. It's best to refuel as soon as possible once the light comes on to avoid running out of gas.