Here's why:
* AWD System: All-wheel drive systems rely on precise rotational speeds between all four wheels. Using tires with significantly different tread depths or diameters can disrupt this balance, potentially causing issues like:
* Increased wear on the drivetrain components.
* Reduced fuel efficiency.
* Poor handling and traction, especially in slippery conditions.
* Premature wear on the newer tires. The better traction of newer tires will cause them to work harder to compensate for the lower traction of worn tires.
* Safety: Uneven tire wear can significantly impact braking and handling, reducing overall safety.
While you *can* replace just two tires (typically the front or the rear), it's best to replace them in pairs (both front or both rear) with tires that are identical in size, type, and tread depth. Even then, matching the existing tires as closely as possible is preferable.
If one tire is damaged beyond repair and needs immediate replacement, it’s acceptable to replace just one. However, you should plan to replace the opposite-side tire in the same axle soon to maintain a similar wear pattern.
In short, while not mandatory, replacing all four tires simultaneously is the best practice for a Chrysler Pacifica AWD to maximize performance, safety, and longevity of your tires and vehicle components.
