How to Maintain Summer Tires? | Heat-Ready Care

Maintain summer tires with monthly cold-pressure checks, visual inspections for damage, and replacement when tread hits 2/32 inch.

For the full breakdown, see our best 245/35R20 Tires guide.

Summer tires use a softer rubber compound that grips hot asphalt but wears faster than all-season rubber. That makes maintenance more about vigilance than effort—pressure, tread, and damage checks on a regular rhythm keep them safe through the hottest months. The payoff is predictable handling when you need it most.

Check Tire Pressure the Right Way

The single most important habit is checking pressure monthly, and always when the tires are cold—meaning the car hasn’t been driven for at least three hours. Heat builds pressure as you drive, so a warm reading runs high and leads you to under-inflate.

Compare your gauge reading against the vehicle manufacturer’s recommendation printed on the door-jamb placard or in the owner’s manual. The number molded into the tire sidewall is the maximum pressure the tire can hold, not what your car needs—a distinction that trips up plenty of drivers.

Inspect Tread and Sidewalls Before Long Trips

Look over each tire at least once a month and before any road trip for cuts, punctures, bulges, scrapes, cracks, bumps, bald spots, and worn tread. Catching a sidewall bulge before a highway drive beats discovering it at 70 mph.

Tread depth matters just as much. The NHTSA recommends replacing tires once tread reaches 2/32 inch. Built-in wear bars—the raised strips across the tread grooves—show this point visually. The penny test works too: insert a penny head-first into a groove; if Lincoln’s head stays fully visible, the tread is too shallow.

Uneven tread wear across a tire signals a separate problem. When one edge wears faster than the other, the tires likely need rotation, wheel alignment, or both—have a shop check before the wear pattern ruins the tire entirely.

Manage Heat, Load, and Age

Hot-weather driving increases strain on summer tires, so Bridgestone advises against overloading the vehicle or driving too fast—both push tires past their design limits. If your car carries a heavy load or tows, check pressure more often than monthly.

Age is a quieter threat. Some vehicle manufacturers recommend replacing tires every six years regardless of how much tread remains, because rubber degrades over time even when parked. If your tires are approaching that age, factor replacement into your budget now.

Don’t forget the spare. Check its pressure on the same monthly rhythm, and confirm your jack kit is in place—a flat in July heat is bad enough without discovering the spare is also low.

Is It Time to Replace Your Summer Tires?

Replace summer tires when tread hits 2/32 inch, when visible damage appears, or when uneven wear persists after rotation and alignment. Driving on a damaged tire risks a blowout, and shallow treads lose grip precisely when summer downpours arrive.

Following your vehicle manufacturer’s pressure and replacement guidance keeps summer tires predictable in the conditions they’re built for. That’s the quiet version of performance—it’s not flashy, but it’s what gets you home.