Summer tire safety: What drivers need to know about inspections, laws and when to switch

Proper summer tires give you the grip, control and safety you need to make the most of the season

AS MAY ARRIVES in Ontario, it’s the right time to switch from winter tires to summer tires. With warmer temperatures, clearer roads, and changing driving conditions, having the right tires is about more than comfort—it’s about safety, performance, and fuel efficiency.

If you’re wondering why the switch is necessary, how to inspect your current set, and what rules apply in Ontario, this article breaks it down.

Why Change to Summer Tires?

Winter tires are designed for cold, icy, and snowy conditions. Summer tires, by contrast, are built for dry and wet pavement, warmer temperatures, and high-speed stability.

Key Differences:

• Tread compound: Summer tires are made of a rubber compound that stays firm in the heat, improving traction.
• Tread design: Less aggressive tread allows more contact with the road.
• Performance: Better grip, cornering, and braking in temperatures above 7°C.

Driving on winter tires in the summer wears them down faster and reduces vehicle handling. Plus, they increase stopping distances on warm pavement.

How to Check Your Summer Tires Before Installation

Before you mount summer tires back on your vehicle, check these areas:

1. Tread Depth

• Use a tread depth gauge or the toonie test: Insert a toonie into the tread. If the silver part is fully visible, it’s time to replace the tire.

2. Sidewall Condition

• Look for bulges, cracks, or deep scratches. Any damage could signal a risk of a blowout.

3. Air Pressure

• Check when tires are cold using a digital tire gauge. Summer tires should match the vehicle manufacturer’s recommended PSI.

4. Date of Manufacture

• Find the four-digit DOT code on the sidewall. Tires older than six years should be inspected carefully, even if tread remains.

5. Uneven Wear

• Uneven patterns may signal alignment or suspension issues. Get them corrected before mounting your tires.

When to Switch to Summer Tires in Ontario

A common rule is to switch when temperatures stay above 7°C consistently, usually by mid-April to early May. This ensures the rubber in your summer tires performs as designed.

Switching too early could expose your summer tires to freezing overnight temps, which can reduce grip and cause cracking. Waiting too long, however, can waste your winter tires and affect performance.

Ontario Tire Safety Laws: What You Need to Know

Ontario does not require the use of winter or summer tires by law (unlike Quebec). However, tire condition and maintenance are enforced under the Highway Traffic Act.

Legal Requirements:

• Minimum tread depth: Tires must have at least 5 mm of tread across 75% of the tread width.
• No exposed cords: Tires must not have visible structural damage.
• Tire size and type: Must be appropriate for the vehicle type and loading conditions.

Failing to comply can result in:

• Fines
• License suspension (for commercial vehicles)
• Increased liability in case of an accident

Police and MTO inspectors may check tires during roadside stops or vehicle inspections.

Summer Tire FAQ for Ontario Drivers

Do summer tires wear faster?

Not when used properly. Summer tires wear faster than all-seasons in colder temperatures, but when driven in summer conditions, they wear normally and often last longer than expected.

Can I use summer tires all year in Ontario?

No. Summer tires should not be used below 7°C. In cold or snowy conditions, they lose flexibility and grip, increasing the risk of an accident.

Are all-season tires a better option?

All-season tires are a compromise. They perform decently in both hot and mild winter conditions but don’t excel in either. For Ontario drivers who switch seasonally, dedicated summer tires offer better performance.

What’s the penalty for driving with bald tires?

While there’s no fine specifically for bald tires, driving with less than the legal tread depth can lead to a defective equipment charge, which includes a fine and possible demerit points.

Tire Storage Tips Between Seasons

• Store in a cool, dry place out of direct sunlight.
• Keep tires off the ground or stacked with protective covers.
• Use tire totes or bags to reduce dust and ozone exposure.
• Label tires to remember their previous positions (e.g., LF for Left Front).

Improper storage can damage the rubber, cause flat spots, and shorten lifespan.

Where to Buy Summer Tires in Ontario

Shopping local helps you get professional support and quick service. Wheels Near Me offers summer tires and rims across Ontario, with experienced staff to help you pick the right size, tread pattern, and fitment for your vehicle. Their inventory includes top brands and competitive prices.

They also offer mounting, balancing, TPMS installation, and expert advice for performance, safety, and appearance.

What to Consider When Buying Summer Tires

1. Driving Style

• Aggressive drivers benefit from performance summer tires.
• Daily commuters can go with touring options for comfort and durability.

2. Road Conditions

• Rural or unpaved roads? Choose tires with reinforced sidewalls.
• Highway driving? Look for low rolling resistance

3. Fuel Efficiency

• Some summer tires are built to reduce friction and improve mileage.

4. Noise Levels

• Tread design affects road noise. Read reviews and ask for recommendations based on your vehicle.

Ontario’s roads come alive in summer, but so do the challenges of heat, rain, and long-distance driving. Proper summer tires give you the grip, control, and safety you need to make the most of the season. Replace, inspect, and upgrade with confidence.