*Median odometer reading when the problem happened, where owners gave one. One complaint can name several problem areas.
Service brakes
My 2026 Cadillac OPTIQ experienced two brake-system failures. The second occurred on September 14, 2026. The vehicle displayed brake-system warnings and braking performance was impaired. The vehicle previously received a brake-system-control-module reprogramming in August. The dealer has advised that the master cylinder and brake booster, which are one assembly on this vehicle, may be failing and is consulting Cadillac Engineering. The vehicle is currently at the dealership, and I have been provided a loaner. This incident may relate to NHTSA Engineering Analysis EA26006 concerning sudden loss of brake assist in 2025â2026 Cadillac OPTIQ vehicles.
Sep 14, 2026Tires
The tire size experiencing failure is 245/50 R 20 Load Range XL Continental CROSSCONTACT RX with Contiseal technology. Passenger side rear. I drive a Cadillac Optiq 2026 Luxury This is now the fourth tire Iâve had to replace in a short period of time. These tires have plenty of tread on them and were just recently replaced with new tires because the other ones had a nail in a non-repairable zone. This is the second one Iâve had to replace in a week due to a similar issue that isnât seemingly a nail. I pulled my car out of my driveway today and I heard a noise similar to a pop although it could have been that the tire was already deflated and I was hearing the tire riding with no air.…
Sep 23, 2026Unknown or other
On September 16, 2026, at approximately 3:30 PM, I was driving my 2026 Cadillac OPTIQ on a dry road under clear, blue-sky conditions. Cruise control was set at approximately 28 mph. There were no vehicles in front of me or behind me, and there were no apparent roadside objects or other conditions that should have presented a collision hazard. Without warning, the vehicle displayed a "Grab the Wheel" warning. My hands were already on the steering wheel at approximately the 10-and-2 positions. A red collision-alert box was also displayed on the windshield even though there was nothing in front of the vehicle. The vehicle then began slowing substantially. I attempted to regain normal control,…
Sep 16, 2026Forward collision avoidance › Automatic emergency braking
Vehicle: 2026 Cadillac Optiq AWD Purchased/Leased: Beverly Hills Cadillac, XXX (new lease) Current Mileage: 2,313 (XXX) The vehicle's Automatic Emergency Braking (AEB) system has repeatedly activated without any actual hazard present, bringing the vehicle to a complete, unexpected stop while driving. This has occurred a handful of times with 3 notable occasions: XXX â On the [XXX], the vehicle applied full automatic braking and came to a complete stop with no vehicle or obstacle ahead of it. XXX â On a winding road, the vehicle again automatically applied the brakes and came to a complete stop with no hazard present. XXX â While approaching a stoplight under normal driving conditions,…
Jun 15, 2026Tires
On Friday August 7th, I was driving my 2026 Cadillac OPTIQ Luxury AWD at approximately 25 mph near Byron road in Tracy. While crossing a railroad track under normal driving conditions, both passenger-side tiresâthe right-front and right-rearâsuddenly lost air and sustained sidewall ruptures. I did not strike a pothole, curb, debris, or any other visible object, and no foreign object or tread puncture was found. Both tires were Continental CrossContact RX, size 245/50 R20 105H XL, tubeless and were the original factory-installed tires. The vehicle had approximately 12,850 miles, and the tires had approximately 12,850 miles. Before the incident, there was no tire-pressure warning or…
Aug 7, 2026Forward collision avoidance › Automatic emergency braking
Multiple times over the last four months of leasing this 2026 Cadillac Optiq, the Automatic Emergency Braking (AEB) system has malfunctioned and abruptly slammed on the brakes without warning, bringing the car to a sudden stop in the middle of our travel lane. All incidents occurred under similar optimal conditions: clear daylight, sunny skies, a clean windshield, and zero hazards or pedestrians in the road. Neither cruise control nor Super Cruise was engaged during any incident. The vehicle is updated with the latest software version. During a recent event, we were traveling at approximately 25 mph in a residential zone when the vehicle violently engaged the brakes. No warning lamps,…
Jul 28, 2026
Owner complaints are submitted to NHTSA by the public and are not verified. Shown as filed (NHTSA removes personal details); long reports are shortened.