---
id: faq-0080
title: "How do I know if my tires need replacing?"
category: faq
subtopic: service-and-maintenance
page_type: faq
source_url: "https://www.castlecdjrnaperville.com"
tags: ["tires", "safety", "wear"]
questions:
  - "When should I replace my tires?"
  - "How do I check tire tread depth?"
  - "What's the penny test for tires?"
related: [tire-rotation, wheel-alignment, seasonal-tires]
dealer: Castle CDJR of Naperville
---

Tires should be replaced when tread depth reaches 2/32 of an inch or when you notice visible wear, cracking, or bulging. Most tires last 25,000 to 50,000 miles.

**Quick checks for tire health:**
- **Penny test:** Insert 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.
- **Visual inspection:** Look for cracks, uneven wear, or bald spots.
- **Vibration or noise:** These can signal worn tires or alignment issues.

Proper tire maintenance-including rotation every 5,000-7,000 miles-extends their life and improves fuel efficiency and safety. Castle CDJR of Naperville's Service Department can inspect your tires, rotate them, and recommend replacements when needed.

Ready for fresh tires or a rotation? Call us at **(630) 864-6683** to schedule an appointment.