2015 Cadillac Cts problems, complaints & recalls
Most-reported problem areas: Power Train (13) · Vehicle Speed Control (4) · Suspension (4)
🧭 Reliability snapshot
Compared against other Cadillac Cts model years — complaint volume vs the model's median year, recalls and severity. How we score →
🛣️ Complaints by mileage
25 NHTSA complaints that reported an odometer reading.
Safety recalls (3)
Air Bags:frontal:driver Side:inflator Module 2026-05-21 · campaign 26V329000 · 5,014 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2015 Cadillac Escalade, Escalade ESV, XTS, 2015-2016 Cadillac ATS, CTS, and SRX vehicles. The front-driver air bag inflator may rupture during deployment.
Risk: An inflator rupture may result in sharp metal fragments striking the driver or other occupants, resulting in serious injury or death.
Fix: Dealers will replace the front-driver air bag module, free of charge. Interim letters notifying owners of the safety risk were mailed June 19, 2026. Additional letters will be mailed once the remedy is available. Owners may contact Cadillac customer service at 1-800-333-4223. The manufacturer's number for this recall is N262555870. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 21, 2026.
Seats:front Assembly:seat Heater/Cooler 2018-09-07 · campaign 18V595000 · 52,867 vehicles
Defect: General Motors LLC (GM) is recalling certain 2014-2016 Cadillac CTS vehicles, equipped with heated front seats. The flexible heating mats in the front seats may be damaged over time, resulting in the seat heaters producing excessive heat.
Risk: In cold ambient temperatures, the seat heaters in these vehicles can turn on automatically when the vehicle is remotely started. If a damaged seat heater is turned on while no one is inside the vehicle, the damaged seat heater can overheat, increasing the risk of a fire.
Fix: GM will notify owners, and dealers will recalibrate the body control module, disabling the automatic activation of the heated seat when the vehicle is remotely started, free of charge. The recall began November 1, 2018. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for the recall is 18286.
Service Brakes, Hydraulic:pedals And Linkages 2015-06-09 · campaign 15V358000 · 2,163 vehicles
Defect: General Motors LLC (GM) is recalling certain model year 2015 Cadillac ATS and CTS vehicles. The affected vehicles have a bracket between the brake pedal assembly and the rod that actuates the brakes that may fracture during normal brake pedal operation.
Risk: If the bracket fractures, the driver would not be able to apply the brakes, increasing the risk of a crash.
Fix: GM will notify owners, and dealers will inspect the vehicle and replace any affected bracket, free of charge. The recall began July 6, 2015. Owners may contact Cadillac customer service at 1-800-458-8006. GM's number for this recall is 15352.
Service bulletins (1,780)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Unknown Or Other 2026-04-01 · PIT3271Q · Service Bulletin/Repair Instructions
this preliminary information communicates information about how to determine if a wheel and tires size change is available.
Unknown Or Other 2026-03-09 · PIP6104 · Service Bulletin/Repair Instructions
this preliminary information communicates the steps on how to save a gds2 session log and upload to a technical assistance case in cx connect.
Unknown Or Other 2026-03-09 · PIP4902V · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Showing the 6 most recent of 1,780 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-10-20 · Service Brakes“component affected: service brakes description of safety defect & incidents: experienced a recurring, systemic mechanical failure within its camshaft-driven brake vacuum assist system, creating an imminent crash hazard on public roadways. on two separate occasions while traveling at operational roadway speeds trying to slow down for an interchange,…”
2026-10-06 · Power Train · 143,145 mi“the contact owns a 2015 cadillac cts. the contact stated that while driving, the air bag warning light and the check engine warning light illuminated, and the message "service vehicle soon" was displayed. additionally, the rear end of the vehicle made an abnormal roaring sound. the vehicle was taken to the dealer, where a multi-point inspection was…”
2026-08-28 · Unknown Or Other“dash board message power steering service message hard to steer traction assist light is on.…”
2025-07-25 · Suspension · 72,000 mi“the contact owns a 2015 cadillac cts. the contact stated that while driving at undisclosed speeds, there was a loud grinding and squeaking sounds coming from the vehicle. additionally, there was a high-pitched sound coming from the vehicle. the contact also stated that the water pump was inoperable. there were no warning lights illuminated. the veh…”
2025-07-16 · Power Train:driveline:differential Unit · 98,000 mi“the contact owns a 2015 cadillac cts. the contact stated while driving 65 mph, the vehicle shuddered and made an abnormally loud sound. the contact exited the highway and drove to the nearest mechanic shop at a gas station. the mechanic diagnosed the vehicle and determined that the rear differential was fractured and needed to be replaced. the vehi…”
2025-05-02 · Steering · 92,000 mi“the contact owns a 2015 cadillac cts. the contact stated that occasionally while driving at various slow speeds, the message "driver assist unavailable" and the steering wheel was abnormally firm, requiring excess effort to drive the vehicle until the power steering functionality returned. there was no warning light illuminated. the vehicle was tak…”
2024-10-16 · Equipment:electrical:infotainment:video (Touch)screen/Monitor/Unit“the car was taken to hutchinson dealership in macon georgia, to have the oil changed and when i went to pick up the car the cue screen was cracked. i asked being the car was in their possession they should be liable for the repairs. they told me that there was nothing they can do because there was no warranty. i asked why would the car need a warr…”
2024-10-04 · Power Train:driveline:differential Unit · 125,000 mi“the contact owns a 2015 cadillac cts. the contact stated that there was an abnormal loud clunking sound coming from the rear end of the vehicle while the vehicle was shifting into gears. the vehicle was taken to amco transmissions & total car care, where it was diagnosed that the rear differential had failed and needed to be replaced. the contact …”
2024-09-22 · Vehicle Speed Control“the primary issue with the vehicle is the failure of the front transmission pump seal (part #24225543) and the torque converter seal ( part #242337534 ) which caused a significant transmission fluid leak. the original repair of the torque converter seal was done in jan 2024 by andrews cadillac in mt juliet tn. failure to properly repair the torque …”
2024-05-28 · Power Train:driveline:differential Unit · 157,000 mi“the contact owns a 2015 cadillac cts. the contact stated while driving at various speeds, there was an abnormal grinding sound coming from the rear end of the vehicle. the contact also became aware of an abnormal sound near the brake pads; however, the contact stated that the sound was not coming from the brake pads. no warning lights were illumina…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.