You’ll notice the symptoms first. One day, you might notice that the car tends to “crouch” forward when coming to a stop. The rear end lifts up while the front end nose dives to the ground. Another common symptom is one corner or an entire side of your Cadillac XTS sagging down. Most often, this is in the rear. However, sometimes it might occur on one side or just on a single corner.

Often, these symptoms will appear before you see a suspension warning light. If you suspect that your XTS is suffering air suspension issues, you can perform a quick “bounce test.” To do this, walk around to each corner of your Cadillac and push down. That corner should spring back up and stay in place once you let go. If it bounces or doesn’t come back up, you likely have some serious air suspension issues.