The springs are broken or sagging.

Inspect and service as required.

Refer to Front Suspension or Rear Suspension

The front or rear stabilizer shaft is loose or disconnected.

The strut dampener is worn.

Inspect and service as required.

Refer to Strut, Strut Component, and Spring Replacement .

The vehicle is overloaded.

Reduce the load.

The tire pressure(s) is incorrect.

Inflate the tire(s) to proper specifications.

Refer to Tire Inflation Pressure Specifications in Maintenance and Lubrication.