2020 LINCOLN AVIATOR PHEV Electrical System Problems

While driving, the vehicle displayed a “Stop Safely Now” warning and immediately began limiting operation. At the same time, steering effort increased significantly, similar to a loss or reduction of power steering assist, making the vehicle difficult to control. I was unable to safely pull over when the warning appeared and was forced to limp the vehicle into a nearby residential street to avoid traffic. After stopping, the vehicle became immobilized and repeatedly engaged the electronic parking brake. The vehicle could not remain in neutral and required roadside assistance. Towing was difficult due to the inability to keep the vehicle in neutral. The vehicle was inspected by a dealer, and diagnostics identified a high-voltage isolation fault (DTC P0AA6) traced to the air conditioning compressor on the hybrid system. The component is currently being replaced. The sudden shutdown combined with increased steering effort and inability to safely pull over created a...

-Check engine light on - Service vehicle soon light on -Fault with hight voltage system. Can't drive the vehicle.

Unsure what component failed specifically, has been inspected by dealer multiple times. This randomly occurs while driving. It disables a number of safety features such a collision assist and traction control as well as several driving modes until the car is fully powered off and restarted. There are multiple reports of this occurring frequently in online groups. No warnings prior to the failure but multiple warnings when it fails. This can occur daily, even multiple times a day during normal driving. Dealer has tried replacing multiple modules and sensors but problem persists.

The contact owns a 2020 Lincoln Aviator. The contact stated while driving at 45 MPH on an entrance ramp onto the highway, the accelerator pedal was depressed but the vehicle failed to respond. The warning message "Stop Safely Now" and "Full Accessory Power Mode" were displayed. The contact veered to the side of the road for a moment. The contact then continued to drive. The contact stated that the failure reoccurred while driving. The vehicle was taken to the local dealer where it was diagnosed that no issues were found; however, the failure reoccurred. The vehicle was taken back to the local dealer where it was diagnosed that no issues were found. The contact's husband later received a warning message in his app stating, "High Voltage Battery". The vehicle was then taken to the dealer where unknown wires were tightened. The contact stated that the failure had been reoccurring while...

I was driving and an alert to pull over came on. The car would not accelerate and I was in the middle of a parkway where speeds were 55 mph. It almost seemed like the car couldn't figure out to go to gas mode when the battery depleted the range. The car is a hybrid.