I leased a new 2026 Cadillac VISTIQ on XXX. The vehicle had approximately 960 miles when the incident occurred. After DC fast charging at a Tesla Supercharger in Las Vegas, NV, the charging session did not complete normally. Shortly afterward, the vehicle displayed a “Reduced Acceleration – Drive with Care” warning message and vehicle performance was significantly reduced. The air conditioning also stopped cooling properly while outside temperatures exceeded 100°F. Because vehicle acceleration was limited and the warning indicated reduced propulsion performance, I did not feel comfortable continuing to operate the vehicle. I canceled a planned trip from [XXX] to [XXX] because I no longer believed the vehicle was reliable for highway travel. The vehicle was taken to the selling Cadillac dealership for diagnosis and remains available for inspection. At the time of this complaint, I have not yet received the dealership’s diagnosis or repair findings. This incident occurred on a brand-new vehicle with fewer than 1,000 miles. I am submitting this report because a sudden reduction in propulsion immediately following DC fast charging could create a safety concern if it occurs while merging, passing, or traveling at highway speeds. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

need this case escalated immediately as a serious safety incident. [XXX] around While driving my 2026 Cadillac Vistiq on [XXX] around [XXX]pm doing approximately 45 MPH.  The vehicle suddenly and violently activated automatic emergency braking with no vehicle, pedestrian, animal, or obstacle anywhere near me. The dash displayed a warning similar to:“Front Collision detected Brake now” The braking was severe enough to throw me violently forward and backward in my seat, causing neck and back pain that has continued after the incident. This was not normal operation. The vehicle created a dangerous situation and could have caused a rear-end collision if another vehicle had been following closely. I am requesting: Full diagnostic retrieval of all Forward Collision / AEB event data Inspection and calibration of all front collision sensors, cameras, radar systems, and Super Cruise related modules Documentation of any known technical service bulletins, software issues, or engineering investigations related to phantom braking or unwanted brake assist activation Written confirmation of findings Immediate escalation to GM Technical Assistance and Cadillac Engineering I also request preservation of all vehicle event data associated with this incident. This event caused physical injury symptoms including neck and back pain consistent with whiplash-type force from abrupt emergency deceleration. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The shiny plastic piece behind dash screen & the back of the dash screen itself create a reflection in the windshield through the entire drivers side of the car. It seems both distracting and dangerous as with any amount of sunlight you are essentially always looking through that glare to see the road.

This is the second time the EV charging system has alerted for overheating and inability to charge. The dealer has now had the car for 2 weeks this second time. It was in the shop for 4 days the 1st time when the issue was not fixed. I was in the vehicle with my small child and had no air conditioning as well.

The dashboard/infotainment screen keeps alerting and going blank. I will be driving and will no longer know how fast I am going, nor if my blinkers work, or have any control of the screen. This will stay like this for seconds to hours. I have taken the vehicle in several times (Invoices from 8/26/26, 9/11/25, 10/21/25) and eventually had the F module replaced. This resulted in the system working for a time. Then on February 20th, 2026 the issue began again while driving. I tried a system reset on the dashboard, which seemed to resolve the issue for a time. The issue again began on 3/14/26 while driving. I again performed a system reset but the problem remains. I am unable to tell how fast I am going or if any of the electronics work. The onstar light is red and I do not get any response from the system controls. I have lots of videos of these issues saved to my phone and reported to Uftring Montgomery in Peoria Illinois