1. visible cracks or bulges
inspect your tires for sidewall cracks, bubbles, or bulges. these are often signs of internal damage or weakening due to age, road hazards, or underinflation. a bulging tire is a ticking time bomb—replace it immediately.
pro tip: check the sidewalls once a month, especially before long drives or hot weather trips.
2. vibration while driving
excessive vibration in the steering wheel, especially at higher speeds, may indicate a problem with tire balance, alignment, or internal tire separation. this isn’t just uncomfortable—it’s unsafe.
what to do: visit a mechanic or tire specialist to check for alignment or suspension issues.
3. worn-out tread (and the penny test)
tread depth is critical for traction, especially in rain. bald tires increase the risk of hydroplaning and skidding. use the “penny test” by inserting a penny into the tread with lincoln’s head upside down. if you can see the top of his head, it’s time for new tires.
tread depth should never go below 2/32 of an inch.
4. uneven wear patterns
tires should wear evenly. if you notice more wear on the inner or outer edge, or cupping (patchy wear), it could be due to alignment issues, improper inflation, or suspension problems.
fix it fast: uneven wear not only shortens tire life but also affects steering and braking.
5. your tires are over 6 years old
even if your tires look okay, rubber degrades over time. most manufacturers recommend changing tires every 6–10 years, regardless of tread condition. check the dot code on the tire sidewall to find the manufacturing date.
remember: old tires can harden, crack, and become dangerous without showing obvious damage.
wrap-up: safety first
don’t wait until you're stranded on the highway or stuck with a flat in the middle of nowhere. a quick monthly inspection and basic tire knowledge can prevent bigger problems and keep you and your passengers safe.