Trim Height Inspection Procedure: Notes

Incorrect trim heights can cause bottoming out over bumps. Incorrect trim heights can cause possible damage to the suspension components and symptoms similar to those produced when there is a problem with the wheel alignment. Check the trim heights when diagnosing suspension complaints and before checking the wheel alignment.

Perform the following steps before measuring the trim height:

1. Ensure that the fuel level is a no more than 1/8 of a full tank.
2. Ensure that the correct size tires are on the vehicle.
3. Set the tire pressures to the pressure shown on the tire placard. The tire placard is located on the driver's door.
4. The spare tire and tools are properly located and secured.
5. Vehicles with auto level control. The system is active.
6. Make sure the vehicle is on a level surface, such as an alignment rack.
7. Close the doors.
8. Close the hood.
9. Close the liftgate.