CTS Wagon RWD V6-3.6L (2010)
3. Remove the lower control arm bolt from the knuckle (1).
4. Remove the rear coil spring from the lower control arm. Refer to Rear Spring, Insulator, and Jounce Bumper Replacement (See: Suspension
Spring ( Coil / Leaf )/Service and Repair/Rear Suspension Coil Spring).