Check a vehicle VIN check Latest recalls Latest complaints Common problems Rankings Compare vehicles Recall roundups All makes Guides Share your experience
Theme

2020-2026 · 7 model years

Cadillac CT4 Problems by year

Owners have filed 34 complaints about the Cadillac CT4 across 7 model years, and it has 5 recalls. The 2022 has the most complaints once its age is allowed for (6), while 2025, 2026 have far fewer than a typical year. The most reported problem area is the engine & cooling, followed by the brakes.

Most complaints for its age20226 complaints · 2 recallsSee the 2022
Complaints
34
Recalls
5
Crashes
2
Fires
0
Injuries
1
Deaths
0

CT4 complaints by model year

Highlighted: the year with the most complaints for its age. Older vehicles have had more time to collect complaints - the Safety Index grade allows for that.

YearComplaintsRecallsCrashesFiresTop problemGrade
20261000Driver assistanceA
20252000Driver assistanceA
20247010Engine & coolingC
20233100BrakesB
20226210BrakesC
20217400Engine & coolingC
20208400Engine & coolingC

Most common CT4 problems

Cadillac CT4 recalls 5

Latest CT4 complaints

2026 Cadillac CT4Electrical systemDriver assistance

On or about [redacted], I was the authorized subscriber and driver of a 2026 Cadillac CT4 owned by Flexcar, VIN [[redacted]]. While driving near [[redacted]] and [[redacted]], multiple dashboard warning lamps suddenly illuminated and a brake-assist warning appeared. The braking response became abnormally stiff or limited, and I nearly rear-ended another vehicle. The suspected systems are the service-brake/brake-assist system and the vehicle's electrical or electronic-control system. The exact cause is UNKNOWN....

Read the full complaint

There was no separate advance warning immediately before the incident; the warning lamps and brake-assist message appeared when the malfunction began. I photographed the illuminated dashboard. A similar event had previously occurred in this vehicle, and I experienced substantially similar symptoms in another Cadillac CT4 supplied by Flexcar. I immediately reported the incident, stopped driving and followed Flexcar's towing and return instructions. The vehicle is now in Flexcar's possession and may be available for inspection through Flexcar, but access is outside my control. Flexcar states that it inspected and tested the vehicle but could not reproduce the condition. Flexcar has not provided diagnostic codes, technician findings, the inspection facility or detailed test results. To my knowledge, no authorized Cadillac dealership, manufacturer representative, police agency, insurer or independent service center has inspected or confirmed the malfunction. I opened a case with Cadillac Customer Assistance, but Cadillac has not inspected the vehicle. The intermittent malfunction affected braking response and created an immediate collision risk to me and other road users. The dashboard photographs document that the warning condition occurred despite Flexcar's later inability to reproduce it. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Electrical system · Forward collision avoidanceNHTSA 11761162
2020 Cadillac CT4Brakes

Total brake system failure. Lost almost all brake function nearly causing an accident. June 17, 2026 car was taken to dealership. Electronic Brake Control Module (EBCM), Brake Master Cylinder, Brake Pedal Retainer replacement required. August 7, 2026 received a call from dealer stating that EBCM replacement was faulty or failed. August 26, 2026 Contacted GM to ask for inclusion in recall 20V588000. Was refused inclusion. 70 days out of service and was forced to sell vehicle due to safety concern, extended repair schedule and cost of a vehicle I could not use. Two EBCM replacements and vehicle is still out of service as of August 26, 2026.

Filed Incident Service brakesNHTSA 11759859
2020 Cadillac CT4Engine & cooling

69,000 mile oil change I was told i needed to spend thousands of dollars on repairing an oil leak b/c my Cam carrier is leaking. Cadillac has a know issue with this repair and refuses to stand behind it's product. Numerous complaints already on forums and yet they charge thousands to fix. A top name brand that can't produce a vehicle past 69000 miles without a major issue. I wanted to make it known about the ongoing issue by Cadillac. So sad.

Filed Incident EngineNHTSA 11759557
2020 Cadillac CT4Transmission & drivetrain

I had two incidents with the Cadillac CT-4 in February and then again in April of 2026 of driving on I-75 at a highway speed of about 70 MPH when the vehicle suddenly downshifted and the engine revving at at very high RPM. The vehicle slowed down suddenly and it felt for a moment that I could not control the speed. The check engine light was on and the diagnostic indicated a transmission/engineer problem and to take in to service within a day. Both incidents in February and April felt the same. Both times I...

Read the full complaint

pulled over to the shoulder to shut the engine. I waited and in February it restarted without the engineer revving high. In April, it still revved high. When I took it to Ed Morse Cadillac in [[redacted]] in February 28, they indicated that it was a water pump failure and they replaced the water pump. I expressed that it was odd that a water pump could affect the vehicle engineer/transmission like it did when engine overheating is usually a warning of a water pump problem. The Odometer was at 73000 just over the 70000 warranty and Cadillac HQ agreed to pay for the repair. However, I continued to have the transmission problem or check engine light problem. I took it back several more times for the check engine light and even paid for a diagnostic. Ultimately, I had the same sudden downshift high engine rev on May 6th and brought it to the Brandon Cadillac again. This time they gave me a loaner and kept the car for a week and told me it was the transmission and that the core component would need to be replaced. The bill was for $4,449.83 for the repair on May 20, 2026. This time Cadillac HQ would not cover the repair even though there were other Cadiilacs with similar transmission issues. The Caddillac HQ Case Number is #[redacted] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Incident Power trainNHTSA 11752429
2021 Cadillac CT4Acceleration & cruise controlEngine & coolingFuel system

While driving at highway speeds on the freeway in my 2021 Cadillac CT4-V, the vehicle experienced a sudden, catastrophic loss of propulsion. Without warning, the transmission dropped out of gear as if it were in neutral. I completely lost the ability to accelerate, creating an immediate, life-threatening hazard as I was left stranded and blocking high-speed freeway traffic. Only after the mechanical failure occurred did the check engine light illuminate. The vehicle was towed to Cadillac Dealership. The service...

Read the full complaint

department confirmed that the vehicle suffered from the known defective transmission control valve covered under GM Special Coverage Bulletin N242480631 and tied to NHTSA Campaign 25V148. The dealership ordered the replacement valve body but aborted the repair after confirming that the control valve's failure caused massive internal fluid leaks and total mechanical destruction of the transmission assembly. The manufacturer is currently denying coverage for the complete transmission replacement, despite the fact that the total failure was consequential damage directly caused by the federally recalled, component defect.

Filed Incident Vehicle speed control · Engine · Fuel / propulsion systemNHTSA 11747192
2020 Cadillac CT4Brakes

The electronic brake control module, break retainer, brake master cylinder and brake valve all failed. I was driving to lunch and coming down a hill when multiple warning lights turned on as I pressed the brakes. I had almost no braking power as I approached a stop sign that lets you enter a highway almost causing me to drive through the stop sign and into cross traffic. I had enough bearings to down shift it and slow it down enough to stop. If I have went through the stop sign, it could have been a fatal accident....

Read the full complaint

The vehicle is at a GM dealership currently with all active codes and faulty equipment. I contacted GM and tried to get some help with this issue and they refuse to help since it is not on the recall list. There is a recall on these exact same parts on the exact same vehicle, GM said its VIN specific. The problem is still current. This vehicle is a major safety risk that obviously should have been included in the recall. There was no warning or no symptoms of this issue until the failure in the moment.

Filed Incident Service brakesNHTSA 11745985

Questions about the Cadillac CT4

Which Cadillac CT4 years have the most problems?

By the number of complaints owners filed with NHTSA: 2020 (8), 2021 (7), 2024 (7). Allowing for how long each has been on the road, the 2022 stands out most. Complaint counts also rise with sales, so compare years of the same model rather than different models.

Which Cadillac CT4 years have the fewest complaints?

Among model years that have been on the road for at least three years, 2023 have the best Safety Index - the fewest complaints, crashes and recalls for their age compared with other CT4 years. Always check the exact vehicle's recalls by VIN before you buy.

What are the most common Cadillac CT4 problems?

Across every model year, owners report problems with the engine & cooling (11), brakes (7), electrical system (6) most often.

How many recalls does the Cadillac CT4 have?

NHTSA lists 5 recalls across all Cadillac CT4 model years. Each year's page lists the recalls for that year; check your own vehicle by VIN at nhtsa.gov/recalls to see whether the repair has been done.

Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data

Owners helping owners

Know before you drive.

Every experience you share - good or bad - shows on that vehicle's page and helps the next owner and buyer. Two minutes, anonymous.

Share your experience