There may be a circumstance where air loss can be covered by warranty, however, this can only be determined when inspected by a tire professional an a Michelin authorized dealer.
Some common causes of sudden or slow air loss that are not covered by warranty are:
Road hazard injuries (punctures, cuts, impact damage to the liner, ply material or sidewall rubber).
Valve stem or core air loss form damage, loose or aged rubber stem.
Air loss from the bead seating area (corrosive buildup on the wheels which prevents a proper seal between the wheel flange and the tire beads, bead seating area damage from accidental mounting or dismounting, foreign material between the rim flange area and the tire bead seating area, bent rim flange).
Our passenger and light truck tires, used in the normal service on the vehicle on which they were originally fitted and in accordance with the maintenance recommendations and safety warnings contained in the Passenger and Light Truck Limited Warranty are covered by this warranty against defects in workmanship and materials for the life of the original usable tread, or six years from date of purchase, whichever comes first. At this time, all warranties, expressed or implied, expire. Replacement will be made in accordance with the terms and conditions described below.
A tire which becomes unserviceable due to a condition covered by this workmanship and materials limited warranty will be replaced with a comparable new tire, free of charge, when 2/32nds of an inch (1.6mm) or less of the original tread is worn, (or 25% or less, whichever is more beneficial to the user) and within 12 months of the date of purchase. Mounting and balancing of the tire is included. You pay the cost of any other service charges and applicable taxes. When more than 2/32nds of an inch of original tread has been worn (or 25% or less, whichever is more beneficial to the user) and after 12 months from the date of purchase, you must pay the cost of a comparable new replacement tire on a pro rata basis. The retailer will determine the charge by multiplying the percentage of the original usable tread worn, by the price in the current base price List. You pay the cost of mounting, balancing and any other service charges and applicable taxes.
When the purchase receipt is not available, the 6 year warranty period commences with the DOT date found on the sidewall of each tire.
This warranty does not cover tires which become unserviceable due to road hazard injury, such as a cut, snag, bruise, impact damage, puncture or other damages such as improper maintenance, rapid or uneven wear caused by mechanical irregularity in the vehicle, accident, fire, tire alteration, etc
Our tires have a limited warranty, which covers defects in workmanship and material for the life of the original usable tread or for 6 years from date of purchase, whichever occurs first. Take the tire(s) to your local participating tire retailer and have them properly inspect the tire. Tell the tire dealer what you are experiencing so they can diagnose the problem. If you or your tire dealer have any questions please have them call us while you are there.
You can get a warranty booklet from any authorized dealer. Click here to download a PDF version.