CTS AWD V6-36L (2009) Maintenance: Alignment System Information
12. Compare the measurement to the specification table. Refer to Trim Height Specifications (See: Specifications/Mechanical
Specifications/Suspension/System Specifications/Trim Height Specifications).
13. If the measurement is outside of the specified range, replace the rear springs. Refer to Shock, Shock Component, and/or Spring Replacement (
See: Steering and Suspension/Suspension/Suspension Strut / Shock Absorber/Service and Repair/Front Suspension Strut/Shock, Shock
Component, and/or Spring Replacement).
Z Height Measurement
The Z height dimension measurement determines the proper ride height for the front end of the vehicle. There is no adjustment procedure. Repair may
require replacement of suspension components.
1. Lift the front bumper of the vehicle up about 38 mm (1.5 in).
2. Gently remove your hands. Let the vehicle settle.
3. Repeat this operation for a total of 3 times.
4. Measure from the pivot bolt center line down to the lower corner of the lower ball joint in order to obtain the Z height measurement.
5. Push the front bumper of the vehicle down about 38 mm (1.5 in).
6. Gently remove your hands.
7. Allow the vehicle to settle into position.
8. Repeat the jouncing operation 2 more times for a total of 3 times.
9. Measure the Z dimension.
10. The true Z height dimension number is the average of the high and the low measurements. Refer to Trim Height Specifications (See:
Specifications/Mechanical Specifications/Suspension/System Specifications/Trim Height Specifications).
D Height Measurement
The D height dimension measurement determines the proper rear end ride height. There is no adjustment procedure. Repair may require replacement of
suspension components.
1. With the vehicle on a flat surface, lift upward on the rear bumper 38 mm (1.5 in).
2. Gently remove your hands.
Allow the vehicle to settle into position.
3. Repeat the jouncing operation 2 more times for a total of 3 times.
4. Measure the vertical distance between the center line of the inboard rear lower control arm bolt and center line of the outboard rear lower control
arm bolt.
5. Push the rear bumper downward to 38 mm (1.5 in).
6. Gently remove your hands.
Allow the vehicle to settle into position.
7. Repeat the jouncing operation 2 more times for a total of 3 times.