*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakesCrash
Component/system involved: Electronic Parking Brake (EPB) system and EPB control switch on my Cadillac CT5-V Blackwing. The vehicle and component are currently available for inspection. What happened / safety risk: The vehicle experienced an unattended roll-away and struck a tree, causing significant vehicle damage. No one was injured, but the vehicleâs uncontrolled movement created a risk of serious injury or property damage. Reproducibility: After the incident, I discovered that I can reproduce a behavior in which the electronic parking brake is released and, if I actuate the EPB switch again shortly afterward to reapply the parking brake, the vehicle sometimes does not respond to that…
Oct 3, 2026Service brakesCrash
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…
May 26, 2026Forward collision avoidance › Adaptive cruise control
Adaptive Cruise control acts like itâs going to maintain a gap (user selectable gap distance is able to be manipulated and displayed on drivers information center) but will rush right onto a preceding cars bumper. Iâm told that even though manual transmission cars have the components and illusion that adaptive cruise control works, it doesnât which is bad if you think it will work. Please make adaptive cruise control work in manual transmission CT5s like it does in auto. Similarly, the Surround Video Recorder equipment is installed but doesnât record and isnât viewable. Please make that function as well. Again, all of the hardware is there - implement it!
Jul 1, 2026Forward collision avoidance › Automatic emergency braking
While driving vehicle at approximately 50 mph in normal driving conditions, the vehicleâs automatic emergency braking/forward collision system activated an alert when a vehicle ahead of me slowed and turned out of my lane. After the lane was fully clear and there was no obstacle in front of the vehicle, the system aggressively braked and brought the car completely to a stop on the highway. During the event, the vehicle temporarily would not respond to accelerator input even while pressing the gas pedal. This created an extremely dangerous situation and nearly resulted in a high-speed rear-end collision. No crash occurred, but if a larger vehicle such as a semi-truck had been behind me,…
May 19, 2026Engine
Catastrophic engine failure within 700 miles Requires full engine replacement Problems began around 150 miles on odometer Message: Reduced accelerated speed Check engine light Service transmission system Service variable valve timing system
Feb 8, 2026Forward collision avoidance › Adaptive cruise control
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,…
Aug 23, 2025 · 1,200 miles
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.
