Most common 2026 Cadillac CT5 problems
Share of the 6 complaints; one complaint can involve more than one system. "~" is the median mileage when the problem started.
Cadillac CT5 complaints by model year
2026 Cadillac CT5 recalls (1)
Equipment › Other › Owners/service/other manual
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Remedy: Dealers will reset the vehicle radio, which will facilitate automatic download of the electronic owner's manual, free of charge. Owner notification letters were mailed April 16, 2026.
What 2026 Cadillac CT5 owners say
Driver assistance
CRITICAL SAFETY SYSTEM FAILURE & CONCEALED SOFTWARE REPAIR: Within 14 days of vehicle delivery, a 2026 Cadillac CT5 experienced a complete failure of its heavily advertised Reverse Automatic Braking (RAB) driver-assistance technology. While reversing at a safe, low speed toward a full-sized stationary vehicle, the system failed to detect the obstacle, issued zero visual/audible warnings, and failed to apply automatic braking, resulting in an unmitigated collision ($2,800 physical damage). SUBSEQUENT OEM CONCEALMENT & SOFTWARE FLASH: The vehicle was taken to an authorized dealership (Wallace Cadillac). While in dealer custody, onboard vehicle logs confirm that GM Update 661.10 was flashed to the vehicle's modules on June 8th. …
The contact owns a 2026 Cadillac CT5. The contact stated that while driving the vehicle with the Super Cruise feature activated, the message indicated a road construction zone, and the brakes independently activated. The contact stated that there was no road construction nearby. The contact reset the super cruise control feature. The contact stated that while the super cruise control was set at 75 MPH, the vehicle unintendedly accelerated to 100 MPH within seconds. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure; however, the contact was awaiting scheduling information. The manufacturer was made aware of the failure, and a case was filed. The contact was advised to cease using the cruise control feature until the vehicle was inspected by the dealer. The failure mileage was approximately 1,200.
2026 Cadillac CT5 engines & fuel economy
| Engine | Transmission | Drive | MPG city / hwy / combined |
|---|---|---|---|
| 2.0L 4-cyl turbo | 10-speed automatic | RWD | 22 / 31 / 26 |
| 2.0L 4-cyl turbo | 10-speed automatic | AWD | 21 / 30 / 24 |
| 3.0L 6-cyl turbo | 10-speed automatic | RWD | 19 / 28 / 22 |
| 3.0L 6-cyl turbo | 10-speed automatic | AWD | 18 / 27 / 21 |
| 6.2L 8-cyl supercharged | 10-speed automatic | RWD | 13 / 20 / 15 |
| 6.2L 8-cyl supercharged | 6-speed manual | RWD | 13 / 20 / 15 |
EPA ratings. Class: Midsize car.
Frequently asked questions
Is the 2026 Cadillac CT5 a good car?
Based on 6 owner complaints filed with NHTSA, the 2026 CT5 rates few complaints: 1.7× as many complaints as a typical year of the CT5 at the same age. Complaint counts don't account for sales volume or individual maintenance, so have any used car inspected before buying.
What is the most common problem with the 2026 Cadillac CT5?
The driver assistance — 4 complaints, 67% of all complaints for this model year, most often about adaptive cruise control. Next are the speed control & acceleration (2) and brakes (2).
How many recalls does the 2026 Cadillac CT5 have?
There is 1 recall for the 2026 Cadillac CT5, the most recent from February 26, 2026 (owners/service/other manual). Recall repairs are free at any authorized dealer — check whether yours has been done with the VIN recall check.
At what mileage do 2026 Cadillac CT5 problems happen?
The median mileage reported in complaints is about 1,000 miles; 100% of problems with a recorded mileage started before 50,000 miles.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.