When Should You Replace Your Tires?
- Rafih Auto
- Jul 18
- 3 min read
Proper tire replacement is crucial for safety, performance, and compliance with Canadian regulations. Below are the key signs and guidelines for knowing when to replace tires, how often to replace tires, and related maintenance tips.
1. Tread worn to the Tread-Wear Indicator (≈1.5 mm / 2/32″)
According to Transport Canada, a tire must be replaced when the tread is flush with the built-in tread-wear indicators—visible across the grooves—usually at about 1.5 mm depth. Driving on tires worn beyond this reduces traction, especially in wet or snowy conditions.
2. Damage: Cuts, Cracks, Bulges
Transport Canada also advises replacing tires that show signs of deep cuts, slits, cracks, blisters, or bulges in the sidewall or tread. Even minor damage can lead to tire failure.
3. Tread Depth Should Be ≥4 mm for Winter
For safe driving in winter, Transport Canada recommends maintaining a tread depth of at least 4 mm (5/32″)—well above the minimum—to ensure proper traction on snow-covered roads. Tire performance decreases significantly below this threshold.
4. Uneven or Rapid Wear
Causes like poor alignment or imbalance can lead to uneven wear, diminishing handling and safety. A yearly alignment and balance check—or sooner if uneven wear appears—is strongly advised.
5. Age, Usage, or Seasonal Changes
Although Transport Canada emphasizes tread depth and physical condition over age, tires degrade over time. Many manufacturers recommend replacements after 6–10 years, even if the tread remains, due to age-related risk. Keep this in mind as part of tire replacement planning.
6. After Significant Impact or Incident
Any serious impact with potholes or curbs can damage internal tire components. Inspection and possible replacement are essential after such occurrences.
Tire Installation & Replacement Tips
Match Tires: Always install new tires of the same size, load capacity, speed rating, and type—preferably all four—to maintain handling and safety.
Professional Installation: Proper mounting, balancing, and valve tightening to manufacturer specs are critical for safety and longevity.
How Often Should You Change Your Tires?
Tread Indicator: Replace when tread is worn down to 1.5 mm.
Winter Performance: Change when tread falls below 4 mm before cold seasons.
Damage Inspection: Monthly checks for wear or damage.
Vehicle Manufacturer Guidelines: Follow your owner’s manual for typical replacement intervals (often 6–10 years, or when wear indicators are reached).
Contact Us
Is it time for a tire replacement or seasonal tire installation? Then contact Quick Lane Mississauga. Our certified technicians are here to help you determine when to change tires, how often to replace tires, and ensure your vehicle is equipped for Canadian roads year-round.
Whether you’re unsure when to get new tires, need a tire inspection, or you’re ready to replace tires before winter, we offer expert service and fast turnaround.
Frequently Asked Questions
When should I replace my tires in Canada?
When the tread wears to 1.5 mm or shows damage. Also replace winter tires if tread is under 4 mm.
How often should you change your tires?
Generally, every 6 to 10 years, or sooner if damage or wear is detected.
What’s the minimum tread depth before tire replacement is needed?
1.5 mm is the legal minimum in Canada. Replace earlier for optimal safety.
When to get new tires after damage?
If you hit a pothole or notice bulging, cracking, or vibrations, replace tires immediately.
Comments