Here are a few reasons why:
- Different tire sizes or patterns can affect the vehicle's handling and performance.
- It can cause uneven wear and tear on the tires, which can shorten their lifespan.
- It can lead to problems with the vehicle's suspension and steering system.
- It can be unsafe, especially in wet or hazardous road conditions.
Therefore, it is best to use the same set of tires on all four wheels of your Lexus for optimal performance and safety.