low coolant lights are common on these cars to go bad. it is actually mounted to the radiator. look below the filler neck on the radiator and you should see it. best way to get to it and take it out is by removing the passenger headlight.

low oil sensor i never checked for. usually on the oil pan somewhere. with that many miles it could be bad so if its easy to get to and you wanna tackle it buy a new one and do it.