2021 Volvo XC90 Powertrain & Transmission Problems

Vehicle steer violently on pilot assist and powertrain disabled, not allowing us to steer the wheel on a highway. (Last year) We were lucky no other cars were nearby, needed a reboot for the wheels to work again. Dealership isn’t sure what happened. Now we have a hybrid system failure which a lot of cars with the same model Xc90 T8 is having with the hybrid system. Please investigate into this

Check engine light illuminated at 11,000 miles. Diagnostics showed a software update was needed but the software update did not fix the problem. Volvo corporate said the IEM module needed to be replaced. The IEM module controls the rear axle / propulsion and this is a serious safety issue because sudden loss of propulsion while driving at high speeds increases risk of having an accident. After replacing the IEM module, the mechanic cleared the DTC codes, test drove the car, and re-ran the DTC - and the code indicating a software update was still needed was present. Also the hybrid battery doesn’t keep its charge and depletes at an extremely fast rate.

The contact owns a 2021 Volvo XC90. The contact stated that upon shifting to Drive(D) while the vehicle was on an incline, the vehicle rolled back before moving forward as intended. The contact stated that the failure had been recurring, causing the vehicle to hit a garage door and a brick mailbox on two different occasions. The contact stated that the tailgate was opened and sustained a dent when the vehicle hit the garage door. The contact stated that upon shifting to Reverse(R) on a decline, the vehicle rolled forward before reversing as intended. The contact stated that the failure had caused the vehicle to hit two pedestrians. There were no reported injuries. No police report was filed. The vehicle was taken to the dealer on several occasions, and several unknown repairs were performed; however, the failure persisted. Additionally, the contact stated that the vehicle had experienced difficulty starting on several occasions, leaving the contact stranded while the contact was in the process of taking his son to the emergency room. The contact stated that while attempting to start the vehicle, the vehicle failed to start. The message "Press Knob To Start" was displayed. The contact stated that while driving at 65 MPH, the vehicle suddenly stopped. The message "Hybrid System Failure - Service Required" was displayed, and the message "Performance Reduced" was displayed along with a turtle. The contact was able to restart the vehicle, but the vehicle failed to exceed 5 MPH while driving. The contact was able to pull over to the side of the road. The contact stated that the failure recurred on several occasions. The vehicle was taken to the dealer, where unknown repairs were performed; however the failure persisted. The dealer had recommended the vehicle sale due to the persistent failure. The vehicle was taken to Park Place Volvo(3515 Inwood Rd, Dallas, TX 75209), where the battery cells were recharged, and the hybrid system module and an unknown hybrid system part were replaced; however, the failure persisted.