Chariotz tool · Flowchart
Tire Pressure Troubleshooting Flowchart
Start with what you see on the dash or feel from the driver's seat, then move toward the likely diagnosis and next action.
What is happening?
Check pressure when tires are cold. Use the driver-door placard, not the number molded into the tire sidewall.
Scroll sideways to follow each branch
- Start with a TPMS light or tire concern, and do a safe visual check first. Then choose the symptom that matches.
- Cold-night drop, all tires down 2-5 psi. Likely diagnosis: normal temperature pressure loss. Action: inflate to placard PSI when cold, and recheck after the next cold morning.
- Single tire low, one corner keeps losing air. Likely diagnosis: puncture, valve stem, bead leak, or wheel damage. Action: inflate, inspect tread, spray soapy water on the valve and bead, and schedule repair.
- All four low, evenly under placard. Likely diagnosis: seasonal pressure loss or neglected inflation. Action: set all four cold tires to placard PSI, and reset TPMS only after inflation.
- Fully flat, rim near ground. Likely diagnosis: unsafe to drive, possible sidewall damage. Action: do not drive on it. Install the spare, use sealant only if appropriate, or call for help.
- Pulling or thumping while driving. Likely diagnosis: low tire, belt issue, wheel damage, or alignment. Action: slow down and stop safely, inspect before continuing, and tow if damaged or unstable.
- After any correction, drive 10-15 minutes, recheck pressures, and watch whether the same tire drops again. If pressure keeps falling, repair the tire or wheel before normal driving.
Gear for this step If the fix is to inflate or repair, see our guide to compact air compressors and tire repair tools.