Start with the pressure placard
Use the recommended pressure on the vehicle’s tire information label or in its manual. The number on a tire sidewall is not the vehicle’s recommended setting. NHTSA advises a pressure check at least monthly with cold tires, including the spare.
Record the recommended values and your readings. If a tire repeatedly loses pressure, arrange an inspection instead of repeatedly adding air without finding the cause.
Look for damage and uneven wear
Check for visible cuts, bulges and uneven wear from a safe position with the vehicle parked. Do not crawl under an unsupported vehicle. A tire may need attention even if some tread remains.
NHTSA says tires are unsafe and should be replaced when tread reaches 2/32 inch. Treat that as a replacement threshold, not a promise that a tire above it is safe in every condition. Ask the shop about tread measurements, age, damage and your driving conditions.
Where do you find the vehicle’s recommended cold tire pressure?
Plan a safe next step
If the vehicle has visible damage or cannot be driven safely, arrange assistance before continuing. Record the vehicle location and parking access without putting yourself near traffic.
Keep the vehicle’s owner information and previous maintenance records together. Follow its inspection schedule and do not assume a warning light has cleared the underlying concern.
Give the advisor useful details
Explain whether the concern is vibration, pressure loss, a pull or visible damage. Describe when it happens without trying to reproduce an unsafe condition. A flat or visibly damaged tire may require roadside help.
After service, keep your tire details and warranty information with the vehicle records. Follow the manufacturer’s maintenance instructions and ask when the next check should take place.
Visit checklist
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Sources & further reading
General driver education. Your vehicle’s instructions, current state requirements and the technician’s findings determine the next step. A guide cannot diagnose your car or confirm it is safe to drive.