Why You Should NEVER Use 32 PSI Tire Pressure on Your GMC Sierra

0:00 Why 32 PSI is not a default 1:41 Finding the pressure on the door label 5:19 Why sidewall pressure is not the target 8:19 Changing tires, wheels, and pressure 11:41 Why the TPMS light is not enough 15:06 Cold pressure, temperature, and load 19:39 The pressure check routine Stop guessing your GMC Sierra's tire pressure before a simple habit costs you tire life. I explain why 32 PSI should never be your default unless your truck's label says so. I show where to find the correct cold pressure, why it changes with the trim, wheels, tires, and load, and why the number on the sidewall is not your target. I also break down how tire changes, TPMS warnings, temperature, and towing affect the pressure you should run. I finish with the gauge routine I use: check the label, measure all four tires and the spare while cold, and write the numbers down. If you've been airing your Sierra to 32 out of habit, this gives you a better way to check it.