Low pressure light for only the spare comes on after temp drop
Whenever the temperature drops around 20 degrees the low pressure light for the spare tire comes on and the tire needs air. The rest of the tires are fine and remain inflated. I'm not talking about it getting cold (below or near zero) it will happen if it drops fro 60 -40 degrees. Soon as you add air it goes out. I've had the tire removed, rim cleaned and remounted. No change. Any ideas?