I am experiencing the same problem with my February 2023 Grenadier. All was fine in the morning, then in the afternoon yellow ESC light, 4 different warnings (ESC, TSA, steering, brake), wiper and low-beam lights working continuosly, while high beam and turning indicator not working…
Made it home and got in contact with INEOS Service. Was a bit difficult to communicate with the Operator (AA in Britain) but he finally promised to arrange a tow truck and a free rental car for 7 days. Got another call from German automobile assistance (ADAC) an hour after and we agreed on doing the towing and getting the rental car at daylight next morning.
Will update tomorrow.