2015 Cadillac CTS Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2015 Cadillac CTS, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Powertrain (other)1932.8%
- Brakes813.8%
- Electrical610.3%
- Engine58.6%
- Suspension58.6%
- Driver assistance58.6%
- Other / unspecified35.2%
- Steering35.2%
- Tires & wheels11.7%
- Interior & seats11.7%
- Exterior lighting11.7%
- Body & structure11.7%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
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 vehicle was being repaired. The contact related the failure to NHTSA Campaign Number: 20V038000 (Power Train); however, the VIN was not included in the recall. The dealer and the manufacturer were not notified of the failure. The failure mileage was approximately 98,000.
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 stated that the vehicle was previously serviced under the NHTSA Campaign Number: 20V038000(Power Train); however, the failure persisted. The vehicle was not repaired. The local dealer and the manufacturer were notified of the failure. The failure mileage was 125,000.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
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 vehicle was taken to an independent mechanic who determined that the brake pads and rotors needed to be replaced, and the rear differential was leaking. The vehicle was repaired, but the failure recurred. The water pump was replaced under the warranty. The contact stated that the brake pads and rotors needed to be replaced every two months. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.
The contact owns a 2015 Cadillac CTS. The contact stated that while driving approximately 40 MPH and attempting to stop, the braking system malfunctioned, and the brake pedal became very difficult to depress. The failure almost caused the contact to lose control of the vehicle and crash. The vehicle was turned off and restarted and the “Brake Assist" message was displayed. The vehicle was taken to the local dealer to be diagnosed. The contact was informed that the vacuum pump was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was also notified of the failure. The failure mileage was 74,000.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
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 Warranty in there possession. It's been two year and i can't pay to have it repaired. I'm [XXX] and can't afford to have it repaired. Very sad.....
The CUE system is variably unresponsive/frozen. Cannot turn on heat, cannot turn on navigation. Situation is distracting as driving and trying to touch the screen to turn on heat in winter, or to receive navigation information when highway shut down and detour was not yet posted. Nearly caused an accident. Dealer confirmed that system is broken. No one else has inspected the system. System never worked properly and had many glitches when vehicle purchased new.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
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 vehicle was taken to an independent mechanic who determined that the brake pads and rotors needed to be replaced, and the rear differential was leaking. The vehicle was repaired, but the failure recurred. The water pump was replaced under the warranty. The contact stated that the brake pads and rotors needed to be replaced every two months. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.
What component or system failed or malfunctioned, and is it available for inspection upon request? Brakes , emergency brake , engine overheating , How was your safety or the safety of others put at risk? Car shut off in the highway while i was with my kids Has the problem been reproduced or confirmed by a dealer or independent service center? yes it went in the shop 05/12/22 but problem with car still continued Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes i dont know how it passed due to emergency brake and engine & brakes Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? yes first engie light came on then car shut off
Too few reports in this category for a page of its own — they appear in the full complaint list.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
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 vehicle was taken to an independent mechanic who determined that the brake pads and rotors needed to be replaced, and the rear differential was leaking. The vehicle was repaired, but the failure recurred. The water pump was replaced under the warranty. The contact stated that the brake pads and rotors needed to be replaced every two months. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.
ENGINE SOUNDS LIKE A TRUCK, WHILE DRIVING. JUST PURCHASED THE VEHICLE. 30,000 MILES ON ODOMETER.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
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 converter seal led to internal damage within the transmission, resulting in the need for a full transmission replacement. THe front pump seal was not replaced as recommended by the service repair manual at the time of the torque converter seal replacement. The faulty component is available for inspection upon request. The safety of myself and others was put at risk due to the vehicle's hesitation to accelerate after stopping, a direct consequence of the low transmission fluid. This hesitation causes a sudden loss of power while driving, increasing the likelihood of an accident. THere is a delay and then a hard shift when off , a significant bump when shifting from first to second gear and when I stop it feels like I've been rear ended by another car. The issue has been confirmed by multiple service centers, including Parker Cadillac, ORR Cadillac, and Christian Brothers Automotive, all of which identified the transmission pump seal as the source of the leak and the resulting damage to the transmission. Additionally, Christian Brothers Automotive found that the torque converter seal was also leaking, further contributing to the vehicle's transmission problems. Despite efforts to have GM engineers inspect the vehicle at ORR Cadillac, they declined. However, Christian Brothers Automotive has provided a thorough inspection and diagnostic of the .There were no warning lamps or error codes indicating the issue, as it was a mechanical failure rather than an electronic one. The symptoms became apparent when the vehicle began hesitating after coming to a stop, and a transmission fluid leak was discovered during the inspection
I HAD ADAPTIVE CRUISE ON, WAS AT A STOP LIGHT, SO ADAPTIVE STOPPED, THE TRUCK IN FRONT OF ME MOVED BECAUSE THE LIGHT TURNED GREEN, SO TO ENGAGE THE CRUISE I GENTLY GAVE IT GAS AND I FELT THE CRUISE KICK SO I MOVED MY FOOT AND THEN THE CAR LUNGED INTO THE TRAILER HITCH OF THE TRUCK IN FRONT OF ME. I HAD NO TIME TO REACT, THE CRASH WARNING DID NOT FLASH NOR DID THE BRAKING ASSIST ENGAGE. LUCKILY THE GUY I HIT WAS NOT AFFECTED THE HITCH PREVENTED DAMAGE TO HIS TRUCK BUT MY CAR TOOK ALL THE DAMAGE. I WAS SO SHOOK THAT BEFORE I COULD APPLY BRAKES MY CAR STILL WAS TRYING TO MOVE FORWARD EVEN THOUGH IT HAD HIT THE HITCH. THIS WAS ON A HIGHWAY JUST AS IT WAS MERGING TO A STREET. I CONTACTED CADILLAC/GM AND SENT THEM PICTURES AND 2 DAYS LATER THEY CALLED AND SAID I HAD NO CASE, THEY DID NOT EVEN SEND ME TO A DEALER TO CHECK OUT THE SYSTEM BY A PROFESSIONAL.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
WHEN IM GOING FORWARD OR REVERSING THE CAR AUTOMATICALLY SLAMS ON PARK BRAKE
SAFETY HAZARD: DEFECTIVE PIRELLI TIRES; PZERO NERO; WITHIN A TIMEFRAME OF ONLY 15K MILES 5 PZERRO NERO TIRES NEEDED REPLACING DUE TO TIRE PULLING AWAY FROM RIM, THEN BULGING AND FINAL SIDEWALL WOULD BLOW OUT. REGARDLESS, IF THE CAR IS IN MOTION OR STATIONARY THIS WILL OCCUR WITH EACH TIRE. FIRST 3 TIRES WERE COVERED UNDER THE EXTENDED WARRANTY THAT I PURCHASE WITH PIRELLI. TIRE 4 & 5 WAS REJECTED TO BE REPLACED BY PIRELLI UNTIL THE TIRES ACTUALLY BLOW OUT. TWO VERY LARGE BULGES IN THE FRONT & REAR DRIVERS SIDE TIRES. MY CAR WAS AT THE DEALERSHIP FOR SERVICE (CUE WAS REPLACED MALFUNCTIONED) AND I WAS NOTIFIED THAT PIRELLI REJECTED REPLACING THE TIRES EVEN THOUGH I PURCHASED THE WARRANTY. I REFUSED TO DRIVE THE CAR OUT OF THE DEALERSHIP WITH 2 TWO TIRES THAT HAVE A BULGE AT THE SIDEWALL READY TO BLOW OUT AT ANYTIME. THE DEALERSHIP PROVIDED ME A LOANER CAR WHILE I FILED A COMPLAINT WITH GM CONCERNING THESE DEFECTIVE TIRES THAT ARE ON THESE CADILLAC'S. GM'S CUSTOMER SERVICE TEAM IS MANAGED POORLY TO SAY THE LEAST. I GOT A CASE# 8-3230449470 AND I WAS TOLD THERE WILL BE RESOLUTION WITHIN 48 HRS, THAT WAS ON AUG 31, 2017. IT IS NOW SEPT 7, 2017 AND I HAVE NOT HEARD FROM THE TEAM AND IT IS NOT RESOLVED. MY CAR STILL REMAINS AT THE DEALERSHIP UNABLE TO DRIVE. SINCE I DID NOT RECEIVE ANY SERVICE FROM THE CUSTOMER SERVICE TEAM I RAISED THE ISSUE TO THE GM EXECUTIVE SERVICE TEAM. ANOTHER CASE# 8-3253040006. I ADVISE THE TEAM OF THE SAFETY HAZARD OF THESE TIRES. I WILL NOT ENDANGER ANY OF MY PASSENGERS OR ANYONE ON THE ROAD WITH THESE DEFECTIVE TIRES THAT WILL BLOW WITH LESS THAN 3K ON THEM. I HAVE RESEARCHED THESE TIRES AND CUSTOMER COMPLAINTS ALL OVER THE INTERNET. INNOCENT PEOPLE ARE DRIVING ON THESE TIRES ON THE EXPRESSWAY GOING 85 MPH NOT KNOWING THAT A TIRE OR TIRES WILL HAVE A SIDEWALL BLOW OUT. I HAVE TAKEN A STAND WITH GM BY NOT DRIVING MY CAR.PLEASE RESEAR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
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 taken to a local dealer, where the vehicle was diagnosed; however, the contact was advised that there was no failure found with the vehicle, and the failure was not duplicated. The vehicle was not repaired. The contact referenced NHTSA Campaign Number: 25V175000 (STEERING); as a possible cause for the failure. The manufacturer was not notified of the failure. The approximate failure mileage was 92,000.
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 converter seal led to internal damage within the transmission, resulting in the need for a full transmission replacement. THe front pump seal was not replaced as recommended by the service repair manual at the time of the torque converter seal replacement. The faulty component is available for inspection upon request. The safety of myself and others was put at risk due to the vehicle's hesitation to accelerate after stopping, a direct consequence of the low transmission fluid. This hesitation causes a sudden loss of power while driving, increasing the likelihood of an accident. THere is a delay and then a hard shift when off , a significant bump when shifting from first to second gear and when I stop it feels like I've been rear ended by another car. The issue has been confirmed by multiple service centers, including Parker Cadillac, ORR Cadillac, and Christian Brothers Automotive, all of which identified the transmission pump seal as the source of the leak and the resulting damage to the transmission. Additionally, Christian Brothers Automotive found that the torque converter seal was also leaking, further contributing to the vehicle's transmission problems. Despite efforts to have GM engineers inspect the vehicle at ORR Cadillac, they declined. However, Christian Brothers Automotive has provided a thorough inspection and diagnostic of the .There were no warning lamps or error codes indicating the issue, as it was a mechanical failure rather than an electronic one. The symptoms became apparent when the vehicle began hesitating after coming to a stop, and a transmission fluid leak was discovered during the inspection
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
I purchased a Cadillac CTS 3.6, Performance Model, in late 2015 with Pirelli 245/40 R18 Pzero Run Flats as OEM tires. I replaced those tires with the exact same Pzero tires in February, 2019, after 35,250 miles on the OEM tires. I never had a problem with the OEM tires, and expected a similar driving experience and performance from the replacement Pzeros. To my surprise, the experience from the new replacement tires was completely different from the originals. I complained to the dealer on numerous occasions about the way the replacement tires rode and performed. I had the dealer re-check the front end alignment. I complained to the dealer that the tires lost air pressure to the extent of two psi per week. I complained to the dealer that the tires, as opposed to the driver, steered the car. I was at the Cadillac dealership on December 31, 2021, for a typical oil change and asked the dealer to check the front end alignment. At the time, the car had 48,458 miles on the odometer, and to my surprise, the dealer advised that there was no point in rotating and balancing the tires, or checking the alignment, because the wear on the tires was to the point of being dangerous to drive. Thus with 12,923 miles on these replacement tires, they needed replacement. I immediately complained to he tire dealer about the premature wear of the Pzero tires, They examined the tires, and agreed that there was obviously a defect resulting in the premature wear, and would file a claim with Pirelli on my behalf. I’ve heard nothing from them to date. As evidenced by the above information, please consider this a claim on my behalf, for tire defects in the Pzero tires, causing dangerous driving conditions, and premature wear shortening the life of the tires. The remaining life of the Pzero tires, the mileage shortened by the defects, amounts to $xxx, prorated, and herewith being claimed. THIS IS AN EXCERPT FROM A LETTER TO PIRELLI N.A. FURTHER INFO CAN BE FURNISHED ON REQUEST.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
MY CAR WAS PARKED ON A NEIGHBORHOOD ROAD. I USED MY REMOTE START AND WHEN I WALKED OUT THE DOOR WITH MY 14 MONTH OLD SON ONLY 3-4 MINUTES LATER, MY CAR WAS ALREADY ON FIRE. I COULD SEE THE FLAMES THROUGH THE WINDOWS AND WITHIN MINUTES THE CAR WAS FILLED WITH BLACK SMOKE. THE BACK DRIVER SIDE WINDOW HAD BUSTED AND THE INTERIOR WAS COMPLETELY ENGULFED IN FLAMES. THE FIRE INVESTIGATOR DEEMED THE HEATED SEATS AS THE CAUSE OF THE FIRE AND BELIEVE IT WAS DUE TO A SHORT IN THE WIRING. MY CAR IS A TOTAL LOSS.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
Brake light system failed and had to be replaced. Infotainment screen failure.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
APRIL 4, 2018 TO WHOM IT MAY CONCERN: THIS IS MY RECOLLECTION AT DISCOVERING THAT MY CADILLAC CTS 2015 GOT ON FIRE AT MY FRIENDS HOME IN SHELBY MICHIGAN ON MARCH 25TH, 2018. ON MARCH 24TH MY WIFE (LOURDES ROBLES) AND I ARRIVED AT OUR FRIENDS HOME AT 48307 RED OAK IN SHELBY MICHIGAN TO CELEBRATE OUR FRIENDS BIRTHDAY. AT THE PARTY THERE WERE APPROXIMATELY 10 COUPLES FROM WHOM 5 WHERE STILL THERE AND WITNESSED THE EVENT. THE MAJORITY OF THEM WORK FOR THE AUTO INDUSTRY AND SOME ARE GENERAL MOTORS EMPLOYEES, INCLUDING ARTEMIO CORTEZ WHO IS A GLOBAL BUSINESS DIRECTOR FOR GM. AT 2:20 AM WE WHERE PREPARING TO LEAVE AND I USED THE ONSTAR APPLICATION TO REMOTELY TURN ON THE VEHICLE SO IT WOULD WARM UP BEFORE LEAVING. AFTER SAYING GOODBYE TO OUR FRIENDS AT 2:32 AM (ACCORDING TO THE MOTION CAMERA) WE ARE WALKING OUT OF THE HOME AND IMMEDIATELY NOTICED THAT MY CADILLAC WAS ON FLAMES. I COULDN'T BELIEVE THE CAR WAS ON FIRE AND I RAN TOWARDS THE CAR UNTIL I NOTICED THAT THE FLAMES INSIDE THE VEHICLE WERE OVERWHELMING. I ASKED MY WIFE TO INFORM OUR FRIENDS AND HAVE THEM MOVE THE 2 CARS NEAR OUR CAR: A FORD FIESTA IN THE FRONT AND A CADILLAC XT5 IN THE BACK. MY WIFE NOCKED ON THE DOOR AND TOLD OUR FRIEND TO TELL THE REST OF THE GROUP SO THEY COULD MOVE THE VEHICLES. AT THE SAME TIME I WAS MAKING MY FIRST CALL TO 911 (2:33 AM) FOLLOWED BY A SECOND CALL AT 2:38 AM. THE OWNER OF THE CADILLAC XT5 MOVED HIS CAR TO A SAFE PLACE IN FRONT OF THE HOUSE, THE OWNER OF THE FORD FIESTA DIDN'T MOVE THE CAR TO PREVENT ANY ONE FROM GETTING INJURED. THE FIRE TRUCK ARRIVED AT 2:43 AM ACCORDING TO THE COPY OF THE REPORT. *TT *CN
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .