Model Y Standard tire pressure in the cold.

Three weeks into owning my 2026 Model Y Standard, the car has had zero issues and no funny sounds. The one thing I noticed: as soon as the weather changed from summer to fall, my tires lost pressure on their own. Nothing was wrong with them. You just have to stay on top of it.

I keep the stock tires at 42 PSI all the time so the car stays at peak efficiency.

42 PSI is what I run on my car's stock tires. The official number for your car is on the tire placard on the driver's door pillar, and that's the one to follow, especially if you have different wheels or winter tires. The Model Y Standard has no tire pressure sensors or readout, so a tire gauge is the only way to spot a drop. Everything else the Standard skips is in what the Model Y Standard has and doesn't.

Air contracts as it cools, so the same amount of air reads lower on a cold morning, even with no leak. In Ontario that usually shows up the first few cold weeks of fall, then again with every deep cold snap. I haven't measured exactly how much mine drops per degree, so I won't give you a number.

• Check all four tires with a tire gauge when the car has been sitting, before you drive. Warm tires read higher. (The Model Y Standard has no tire pressure sensors, so the screen won't show your pressures.)
• Top up to your placard number with a portable inflator at home or the air pump at a gas station.
• Check again after the next big temperature drop.
• Low pressure costs you efficiency, and in a Canadian winter you don't want to give away any range. See Model Y Standard winter range.

If you're swapping to winter tires, set them to the pressure on your placard or the tire shop's recommendation for that size. My notes on tires are in Model Y Standard winter tires, and the rest of the routine upkeep is on the maintenance page.