Gauge says low but if I restart the car a few of times it goes back. Bad sensor? on 2003 Jeep Wrangler

Sometimes when I start my car the pressure gauge reads low and the light comes on. If I restart the car a few times the pressure gauge reads normal and everything is fine. I've checked my levels and everything is fine, could I have a bad sensor?

Asked by for the 2003 Jeep Wrangler