This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
full bulletin at NHTSA ↗2017 Cadillac XTS suspension problems
moderate Owners of the 2017 Cadillac XTS have filed 3 NHTSA complaints about the suspension at roughly $900 to repair (U.S. federal records, as of August 2026). Source: NHTSA Office of Defects Investigation. See suspension across all vehicles →
| Model year | suspension complaints |
|---|---|
| 2013 XTS | 24 |
| 2014 XTS | 8 |
| 2017 XTS (this page) | 3 |
When does it fail?
Of the 3 suspension complaints filed for the 2017 Cadillac XTS, here's the actual mileage breakdown — failures cluster heaviest at 50,000-75,000 mi.
Each bar shows the share of total complaints filed at that mileage range. Peak failure window highlighted. Some owners report problems earlier; some make it well past 150,000 miles symptom-free. Maintenance habits and driving conditions shift the curve as much as mileage alone.
No new NHTSA suspension complaint has been filed on this vehicle in over 6 years — the issue may be aging out of the active population.
Is there a fix? Manufacturer service bulletins
The manufacturer has issued service bulletins covering suspension on this vehicle — documented repair instructions, service campaigns, or warranty extensions sent to dealers. A TSB isn't a recall (it's not a free safety remedy), but it's the manufacturer acknowledging the issue and how to fix it.
This service bulletin advises the tech to only replace the shock that is bad and not all shocks.
full bulletin at NHTSA ↗This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
full bulletin at NHTSA ↗This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
full bulletin at NHTSA ↗This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
full bulletin at NHTSA ↗Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 3 most recent
2017 xts, rear suspension air bags fail while driving, stoped and even parked. While driving at highway speeds or just parked rear end will drop unexpectedly. The rear end will start to bounce with just the slightest uneven road. This cause the driver to have to fight to stay in control of car and slow down very fast. With traffic behind it can cause someone to hit you from rear. Car has been to…
With no warning and only 45000 miles on car rear air suspension motor failed on expressway! I quickly noticed my steering anti red seemed out of control! I quickly pulled over not knowing what was wrong. My husband came to meet me and immediately asked what was in my trunk! I told him nothing he said my back tires were 1/4 inch from hitting wheel well. The rear end was so low if I did not pull…
Rear suspension not holding air. Rear suspension went flat while driving in highway. Had to pull over due to sudden rough ride
Common questions
How serious is the suspension problem on the 2017 Cadillac XTS?
It's a documented issue but not catastrophic. 3 complaints have been filed. Repairs average $900 and most owners catch it before it causes a breakdown.
At what mileage does the suspension typically fail?
Based on the 3 complaints filed, suspension issues most often appear around 52,000 miles. Some report problems earlier; some make it well past 150,000 with no symptoms. Maintenance habits matter — vehicles that received timely fluid services and were not regularly overworked tend to last longer.
What does it cost to fix?
Independent shops typically charge around $900 for suspension repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to suspension?
No active recalls currently cover suspension issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.