The 2015 Cadillac Cts carries 3 open NHTSA recalls — most recently covering seat heater/cooler and pedals and linkages. Owners report 7 recurring issue clusters, led by “Rear differential grinding and metal shavings.” Cadillac uses the GM Oil Life System: an algorithm watches engine revolutions, temperature, and load, then lights the change-oil message — typically around 7,500 miles in mixed driving, capped at 12 months, with dexos-approved oil. Turbo fours in ATS, CT4, XT4, and XT5 are harder on oil than the indicator suggests in short-trip driving. Northstar-era V8s (DeVille, Seville, Eldorado) live and die by their cooling system — coolant condition checks are not optional on those cars. Escalade shares its 6.2L V8 and 10-speed with GM's trucks and follows the same fluid schedule.
SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER
Campaign #18V595000 · Jul 9, 2018
Issue: 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
Campaign #15V358000 · Sep 6, 2015
Issue: 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.
AIR BAGS:FRONTAL:DRIVER SIDE:INFLATOR MODULE
Campaign #26V329000 · May 21, 2026
Issue: 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.
What drivers and federal regulators have officially reported about the 2015 Cadillac Cts.
POWER TRAIN
14 NHTSA complaints · 2019-09 → 2025-07
“My rear differential gear is failing on my 2015 Cadillac CTS luxury 2.0T”
“In about mid November 2021 a grinding noise became noticeable from the rear of my car and quickly became louder”
“ON AUGUST 5, 2019, I WAS TRAVELLING DOWN A TWO LANE ROAD @ 35-40 MPH AND WITH A LOUD CLUNK FROM THE REAR OF THE CAR, THE REAR WHEELS LOCKED UP”
POWER TRAIN
3 NHTSA complaints · 2020-01 → 2020-06
“TL* THE CONTACT OWNS A 2015 CADILLAC CTS. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 20V038000 (POWER TRAIN) HOWEVER, THE PART TO DO THE RECALL REPAIR WAS NOT AVAILABLE”
“TL* THE CONTACT OWNS A 2015 CADILLAC CTS. THE CONTACT DISCOVERED A RECALL ON THE VEHICLE UNDER NHTSA CAMPAIGN NUMBER: 20V038000 (SUSPENSION)”
“THIS VEHICLE IS THE SUBJECT OF A SAFETY RECALL ISSUED IN JAN. THE DEALER ORDERED REPAIR PARTS ON MAY 11. NO ANSWER FROM CADILLAC CUSTOMER SERVICE TO INQUIRE ABOUT PARTS AVAILABILITY. WHAT IS CONSIDERED "REASONABLE TIME" WHEN ADDRESSING A SAFETY RECALL? *TR”
ELECTRICAL SYSTEM
5 NHTSA complaints · 2019-11 → 2022-08
“CUE SCREEN BEGINS SHAKING AND TOUCH SCREEN DOES NOT WORK. THIS SCREEN CONTROLS HEATING, AIR CONDITIONING, RADIO, NAVIGATION, PHONE, SETTINGS. I HAD IT REPLACED AT 26,053 MILES WHILE STILL UNDER WARRANTY, AND AT 63,000 MILES, OUT OF WARRANTY, IT IS DOING THE SAME THING”
“THE CUE INFOTAINMENT SYSTEM WAS JUMP AND MOVE AROUND AND WILL NOT RESPOND WHEN TOUCHED”
“The CUE system is variably unresponsive/frozen. Cannot turn on heat, cannot turn on navigation”
POWER TRAIN, SERVICE BRAKES, ENGINE
2 NHTSA complaints · 2022-07 → 2022-12
“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 vacuum pump failed and caused catastrophic engine failure”
TIRES
2 NHTSA complaints · 2017-09 → 2022-03
“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”
“I purchased a Cadillac CTS 3.6, Performance Model, in late 2015 with Pirelli 245/40 R18 Pzero Run Flats as OEM tires”
VEHICLE SPEED CONTROL, SERVICE BRAKES
2 NHTSA complaints · 2018-02 → 2018-10
“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”
“WENT TO PULL INTO A PARKING SPOT, HIT THE BRAKE, THE CAR SPED UP HITTING ANOTHER PARKED CAR. I HAD A PROBLEM YESTERDAY, PUT CAR IN CRUISE CONTROL(50 MPH) ON THE HIGHWAY, WENT TO BRAKE TO TURN, CRUISE CONTROL WOULD NOT DISCONNECT, HAD TO SHUT THE SYSTEM OFF MANUALLY”
ELECTRICAL SYSTEM, STRUCTURE
2 NHTSA complaints · 2018-02 → 2018-04
“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”
“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”
Issues on other model years
Source: NHTSA Office of Defects Investigation (ODI). Complaint data refreshed Sep 13, 2026. Investigation data refreshed Sep 13, 2026.
We display NHTSA's record with attribution; we don't editorialize on what these complaints mean for any specific vehicle.
Critical for safety and preventing major damage
Change when the Oil Life System calls it — typically around 7,500 miles, never beyond 12 months. dexos1 full synthetic on modern engines; Blackwing and supercharged V-Series run hotter and should not stretch the indicator. Northstar V8s: watch for consumption and leaks at the rear main and oil-pan perimeter.
Estimated cost — typical U.S. ranges
Dealer
~$120–$160
Shop
~$85–$115
DIY
~$25–$55
Full synthetic costs more than conventional. 5-quart 0W-20 + filter is the typical bill.
Rotate every 7,500 miles with the oil change — GM pairs the two. Staggered-fitment V-Series cars can't rotate front-to-rear; budget rear tires accordingly.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Often free at the shop where you bought the tires — worth asking before paying.
Inspect pads, rotors, and lines at every service. Brembo-equipped V-Series wear faster than the base cars; magnetic-ride models should also get a look at shock condition while it's on the lift.
Estimated cost — typical U.S. ranges
Dealer
~$85
Shop
~$60
DIY
Free
Most shops do this free as a courtesy with any service. Don't pay separately if you can avoid it.
Keeps your vehicle running smoothly and efficiently
GM lists roughly 45,000 miles under severe service (which includes most city commuting) for the 6/8/10-speed automatics. Older 4T80-E units behind Northstars respond well to a simple drain-and-fill — avoid pressure flushes on high-mile cars.
Estimated cost — typical U.S. ranges
Dealer
~$330–$500
Shop
~$235–$355
DIY
~$60–$180
Some sealed transmissions have no dipstick — fill is precise and best left to a shop. Many drivers can still DIY drain-and-fill.
Turbo fours (ATS 2.0T, CT4, XT4): roughly every 60,000 miles. Naturally-aspirated V6s and V8s carry iridium plugs rated to 97,500–100,000 miles — check the manual for your engine.
Estimated cost — typical U.S. ranges
Dealer
~$285–$390
Shop
~$200–$275
DIY
~$25–$100
Iridium plugs cost more but last 100k+ miles. V6/V8 access varies wildly — some are tough.
GM schedules replacement around 45,000 miles; inspect at oil changes in dusty regions.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
5-minute job on most cars; the airbox lid usually has clips, no tools needed.
GM recommends fluid replacement about every 45,000 miles or 3 years. Magnetic-ride and V-Series cars driven hard should err toward the 2-year mark.
Estimated cost — typical U.S. ranges
Dealer
~$180–$200
Shop
~$125–$140
DIY
~$10–$25
DOT 3 or 4 — match the cap. Vacuum bleeders make this a one-person DIY.
Inspect from 60,000 miles; replace on cracking or glazing. Supercharged V-Series engines have a second, dedicated blower belt — inspect both.
Estimated cost — typical U.S. ranges
Dealer
~$195–$235
Shop
~$135–$165
DIY
~$20–$50
DIY-friendly if you can reach the tensioner. Inspect for cracks rather than swap on a strict mileage interval.
Extends the life of your vehicle and improves comfort
Replace roughly every 22,500 miles per GM's schedule — sooner if the climate fan has lost its punch.
Estimated cost — typical U.S. ranges
Dealer
~$60–$95
Shop
~$45–$70
DIY
~$15–$40
Usually behind the glovebox. Shops charge labor for a 10-minute job — easy DIY win.
Dex-Cool is rated 5 years / 150,000 miles. On Northstar V8s this is the schedule that decides the engine's fate — low or contaminated coolant is how head-gasket trouble starts. Check level and condition at every oil change on those cars.
Estimated cost — typical U.S. ranges
Dealer
~$285–$330
Shop
~$200–$235
DIY
~$25–$60
Use the manufacturer-specified coolant — wrong color/chemistry can damage the cooling system.
Test annually after year 3. Stop-start-equipped models and anything with Super Cruise use AGM batteries — replace like-for-like, and expect shorter life from the electrical load these cars carry parked.
Estimated cost — typical U.S. ranges
Dealer
~$225–$390
Shop
~$160–$280
DIY
~$130–$250
Most auto-parts stores test and install batteries free with purchase. Skip the dealer markup.
Occupant deaths in fatal crashes (FARS)
9 crashes 2010–2024
FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road. How to read this number
Owner-reported problem signals
Separate from the federal fatality data above: complaints owners filed with NHTSA about this year and model. These are reports of problems, unverified, and are counted here only as signals.
2
complaints mentioning a crash
2
complaints mentioning a fire
Reviewed known issues for this vehicle·Open recalls for this vehicle
Typical U.S. ranges. Actual quotes vary by shop, parts choice, and vehicle condition.
How we estimate: Dealer = OEM parts × 1.4 + labor × $165/hr. Shop = parts + labor × $115/hr. DIY = parts only.
This maintenance schedule for the 2015 Cadillac Cts reflects Cadillac's published service intervals and the GM Oil Life System system. Your actual service needs may vary based on driving conditions, climate, and vehicle usage. Always consult your owner's manual for model-specific recommendations.