Glossary
Heat separation
A failure mode where tire layers — typically tread-to-belt or belt-to-belt — come apart due to heat damage from underinflation, overloading, or high-speed operation.
Any visible tread lifting, bubble, or separation indicates a tire that should be removed from service immediately — not reinflated and continued.
Real-World Use
A driver noticing a slight thump at highway speed investigates and finds tread beginning to separate at the shoulder of a drive tire — the tire is removed before the separation becomes a full failure.
What to Pair It With
Read this term with the full tire sidewall, vehicle rating information, manufacturer documentation, and the actual condition of the tire.
This site is for general information only. It does not replace professional tire service, DOT compliance advice, tire manufacturer instructions, vehicle manufacturer recommendations, or fleet policy.