The underinsured motorist coverage works similarly, but it would only pay out when you get hit by someone who does have auto insurance, but your bodily injury damages that they caused are more than they carry, leaving them underinsured. Just like your bodily injury, the UMPD would pay to fix the damage to your car caused by the other driver, and you only have to pay the $250 deductible.
ALTHO they did not give me discounts, at least they did not charge an arm and a LEG after my one accident. Mercury has been faithful and very helpful when I am a couple days late on payment. DARN ALLSTATE! They paid the other party over and over and over, even though the damage to my fender was worse, they only had a slight tap on rear end, but got FULL VALUE for their 'destroyed' car, and all 5 occupants got PT and chiropractic visits 3x each. I WAS ANGRY! They were not injured, and the car was repairable. But Mercury came through and gave me a good deal for the upcoming years!
Bodily Injury (BI) Liability provides important protection if you injure someone and/or if an injury in an accident results in death while operating your car. This form of auto insurance is important and something you want to keep at a consistent level, even as your car gets older and declines in value. In the event of a serious accident, you want enough insurance (higher limits) to protect assets that may become subject to a lawsuit.