Driving Safely in Texas Summer Heat: Tire & AC Checklist

A Texas summer puts real stress on a vehicle. Pavement temperatures can run far hotter than the air temperature, tires work harder, fluids break down faster, and a car that's fine in March can start showing problems in August. A little preparation before you drive goes a long way toward avoiding a roadside breakdown in the heat.

Check Your Tires Before You Check Anything Else

Heat increases tire pressure, and an already low or worn tire is far more likely to blow out on hot pavement at highway speed. Check your pressure when the tires are cold, ideally in the morning, and inspect your tread. If you're not sure how, our tire tread guide walks through a simple at-home check.

Don't Ignore Your Cooling System

• Check your coolant level when the engine is cold, low coolant is one of the most common causes of summer overheating.
• Watch your temperature gauge, especially in stop-and-go traffic where airflow to the radiator drops.
• If your AC is blowing warm, get it checked before a long trip, not during one.
• Keep a jug of water in the trunk in case you need to add coolant or simply need to stay hydrated during a breakdown.

If You Overheat or Break Down

Get off the road as far as safely possible and turn on your hazards. Never open a hot radiator cap, let the engine cool first. If you're waiting for help in extreme heat, stay hydrated and get in the shade if you can rather than sitting in a car with no AC running.

Heat Affects Drivers, Not Just Cars

Long stretches of highway in triple-digit heat are also genuinely fatiguing, dehydration affects concentration and reaction time more than most people realize. Plan breaks on longer Texas drives the same way you'd plan for a mechanical check, both matter for getting where you're going safely. Finishing our defensive driving course is one more way to build habits that hold up in tough conditions like these.