2019 Cadillac XT5Recalls, problems, MPG & safety

“My 2019 Cadillac XT5 has repeatedly shuddered at highway speeds since shortly after purchase on July 25, 2026. It occurs around 61–62 mph while maintaining speed before accelerating. The cause is UNKNOWN. The selling dealership evaluated the vehicle and performed a front-wheel alignment, but the shuddering persists. Its repair record states that technicians could not reproduce the shuddering during a test drive. A test drive with me was proposed to demonstrate when it occurs. The vehicle has also displayed a “Steering Assist Is Reduced—Drive With Care” warning and a check-engine light. The steering felt normal despite the warning; I am not claiming an actual loss of steering. The temperature gauge has remained on cold, and the air conditioning has malfunctioned. The exact date the steering warning first appeared is UNKNOWN. On October 21, 2026, another Chevrolet dealership documented diagnostic code P0128 and recommended thermostat/coolant-temperature-related repairs. Those repairs have not been performed. The manufacturer was contacted and declined repair assistance. Dealerships have inspected the vehicle; I am not aware of a separate inspection by the…”

“The contact owns a 2019 Cadillac XT5. The contact stated that while leaving the driveway, there was an abnormal sound coming from the vehicle. The contact stated that while driving at 65 MPH, there was an abnormally loud squeaking sound coming from the vehicle. The check engine warning light was illuminated. The contact thought that the catalytic converter had been stolen. The vehicle was taken to an independent mechanic who determined that the catalytic converter was severed at the connection point and cracked, and removed. The contact stated that coils were damaged, and the thermostat housing was cracked. The vehicle was repaired, but the failure recurred. The local dealer was contacted, who determined that the catalytic converter had been replaced, but the failure persisted. The dealer informed the contact that the parts were on backorder. The manufacturer was not contacted. The failure mileage was approximately 100,000. The VIN was not available.”

“The contact owns a 2019 Cadillac XT5. The contact stated that the vehicle was parked in a parking lot. The contact then shifted the transmission into drive (D), and the engine revved loudly. The contact slightly depressed the accelerator pedal, and the vehicle experienced unintended acceleration. The steering wheel inadvertently veered to the left. No warning light was illuminated. The vehicle then drove on top of another vehicle that was parked in front. The contact stated that he was unable to control the vehicle until after the crash. The air bags did not deploy. The contact was unharmed, but his wife's hand was injured in the crash. Medical attention was not received. A police report was filed. The vehicle was able to be driven away from the crash site, but it sustained damage, and the front driver’s side door was jammed. The vehicle was taken to a body shop. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 45,000.”