Operation CHARM: Car repair manuals for everyone.

Initial Inspection and Diagnostic Overview

It is mandatory to use only the tire sizes recommended on the tire chart attached to the vehicle. Larger or smaller tires can damage the vehicle, affect durability, and require changing the speedometer calibration. Make sure wheel size and offsets match those recommended for the tire in use.
1. Inspect for signs of uneven wear that may indicate a need for balancing, rotation, front suspension alignment, damaged tie rod, or steering components.
2. Check tires for:
- cuts.
- stone bruises.
- abrasions
- blisters.
- embedded objects.

3. Tread wear indicators are molded into the bottom of the tread grooves. Replace the tire when the indicator bands become visible.