Purchased 2019 chevy tahoe lt on 10/27. began having serious electrical issues on 11/26 with the message of 'reduced steering assist drive with care' message appearing after vehicle startup. when this message appears vehicle will not go in reverse and steering wheel won't move and car only goes about 5 mph in drive. car was towed and issue wasn't duplicating at dealer. they did inspection and returned after a week of testing. about a day after return of vehicle, message occurred again and this time we videoed malfunction. vehicle is back at dealership and they cannot replicate again. first time vehicle was in shop, error code u0100 was present and we are currently trying to get codes currently present. vehicle has been in service for 3 weeks and they haven't found a solid cause.