NHTSA Complaint #11668853 — 2021 JEEP WRANGLER

Unpredictable complete loss of power steering that will continue until the brakes are applied and speed is reduced to approximately 30 mph and voltage level spikes, as high as 16.3 volts as shown on the instrument panel. It is not temperature related. When disabled it requires two hands and extreme strength to turn, especially when taking an off ramp. Voltage level is typically ranging between 12.7 - 13.7 volts during normal conditions as well as when in no power steering conditions. The first trip 3-4 months ago to the dealership and the only finding was a corroded ground loop which did not solve the issue. After no success begging for a loaner car we left the Jeep 19JUN25 while on vacation for second trip this week. I requested them to contact Stellantis STAR Center and this is the report: 24JUN25 Good morning - our STAR case engineer pointed us in the direction of a similar STAR publication that we had followed the last visit. I did not find any faults within the charging system or any voltage regulators at this point. There were 5 labeled grounds in this publication that were common for building up corrosion. The ground that is on the frame near the driver rear close to the 48v battery had a large amount of corrosion. He cleaned up each ground and applied dielectric grease yesterday, so now I am having him take on a few test drives to see if the issue persists. I have a video of the spike leading to steering reengagement but unable to upload it.