how to fix tire pressure low indication

We’re any of the tires low when you refilled them? Is the spare equipped with a pressure sensor? It’s too soon for a sensor to be going out but stranger things have happened. I suggest you get a tire gauge and a small 12 volt compressor and keep it in the car, and test the tire pressures frequently as you stay on your trip. If you notice a tire that keeps loosing pressure then it’s time to find a tire shop. But that small compressor should keep you going until you can find a place to get help.

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If you don't know or can't understand the owners manual, stop in a tire shop and they'll check for you. You might have picked up a nail while driving. For you. all it takes is a tire pressure gauge, lots of good ones are sold for ten bucks..... You usually find one tire low and that's the one to keep an eye on. You always should check all tires and set pressure properly when the tire's cold, like in the morning before you start driving...... Long ago when I was young, I raced dragsters and built American performance engines. For the past couple of decades I’ve been involved in SRO track racing where I’ve dealt with European performance cars. So, tire science is part of what I’ve lived with for sixty years. Tire pressure should be set at the car manufacturer’s recommended pressure as stated on the tag on the driver’s door jamb and in the owner’s manual. That’s calculated by the car’s designers to provide the best tire wear: even wear in the center and along the tire’s edges. And that will produce the longest life for that tire. It’s also calculated to produce the best balance between ride comfort and handling for the general public. Some might want a ride that softer and some might want handling that’s stiffer. But adjusting for either too far will shorten the tire’s life on that particular car..... You should set the pressure when the tires are cold/cool long after the car has stopped. I always check and inflate early in the morning before driving. Ideally, you should check tire pressure at least once per week, but who has time or memory for that? So long ago, I developed a more livable procedure..... Tire pressure Procedure: Back in the 1960s, I developed a tire inflation procedure that should be, in my opinion, the national standard. Look at your driver door jamb and see what tire pressure the manufacturer recommends. That’s the pressure you should run at all times. But it’s unreasonable to expect that anyone will make the effort to do that. When I get new tires, I check them often and see how much pressure they lose over time. Let’s say that the tires lose 4 psi in 2,000 miles. I overinflate the tires by 2 psi, so after 2.000 miles, they’re underinflated by 2 psi. I’m now maintaining an average tire pressure that’s at the manufacturer’s recommendation, and the variance is so small that I get the maximum life out of the tires. I also rotate tires every 4.000 miles.