My low coolant light came on in my 3.8 GP so I pulled out the battery to put a new low coolant level module in the radiator and after I finished I noticed that my information center does not read correct on the mileage per tank full?It climbs very slowly up to a acurate reading and then varies from there? Also ,on a different subject the digital readout (clock) on my stereo kept fading out and now its black, is there bulbs in there? Thanks for any help guys.