Q: Driver airbag off light appear on start and tire issue

Your tire pressure light is simply telling you to check the tire pressure. The reason it comes and goes is because the pressure is directly related to the temperature. While you are driving, the temperature fluctuates and the tire pressure comes in and out of the range that activates the warning light. Tire pressure is easy to check, many gas stations have a tire pressure gauge built into their air dispensers. It’s not something you should overlook, as low tire pressure can affect the way the car handles, as you have already noticed.

The airbag lights are telling you that there is a problem in the airbag system. When you start the car, the airbag controller does a self test on the entire system. If it sees a problem, it shuts off the airbag associated with the issue and stores a trouble code to help the technician locate the problem. I suggest taking your vehicle into a Toyota dealership to have them look into the airbag light issue.