This preliminary informational (PI) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
View on NHTSA →2015 Cadillac CTS suspension problems
moderate 5 complaints filed with NHTSA · avg repair $900 · see suspension across all vehicles →
Complaints
5
Recalls
0
Avg fix
$900
When does it fail?
Of the 5 suspension complaints filed for the 2015 Cadillac CTS, here's the actual mileage breakdown — failures cluster heaviest at 0-25,000 mi.
0-25k
25-50k
50-75k
75-100k
100-125k
125-150k
150k+
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.
What stands out
No new NHTSA suspension complaint has been filed on this vehicle in over 10 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 provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
View on NHTSA →This service bulletin provides information on Characteristics of Wide Low Aspect Ratio Tires, Vehicle Pulls Left or Right, Wanders, Follows Depressions in Road Surface, Tramlining.
View on NHTSA →This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
View on NHTSA →This service bulletin provides information to dealership personnel on diagnosis and replacement of shock absorber and strut due to fluid leak.
View on NHTSA →Source: NHTSA manufacturer communications. Bring the bulletin number to your dealer or shop.
What owners are reporting 2 most recent
Tl* the contact owns a 2015 Cadillac cts. The contact stated that the rear of the vehicle swerved out of control while driving 45 MPH. The contact was able to bring the vehicle under control. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was 6,038.
When im going forward or reversing the car automatically slams on park brake
Had suspension trouble with your 2015 Cadillac CTS?
File a complaint with NHTSA → It's free, official, and how every report above got here — owner filings are the federal safety record this page is built on.
Common questions
How serious is the suspension problem on the 2015 Cadillac CTS?
It's a documented issue but not catastrophic. 5 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 5 complaints filed, suspension issues most often appear around 37,810 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.
Related
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Verify the raw federal record at
nhtsa.gov/vehicle/2015/Cadillac/CTS.
Severity ratings are derived from reported crashes, fires, injuries, and fatalities. Repair cost estimates are
independent-shop national averages and may differ in your area. Some links on this page are affiliate links.