Technical Service Bulletin RCA-78-23-005-1 — 2023 RIVIAN R1T

Rivian is initiating a customer satisfaction campaign for some model year 2023 R1T and R1S vehicles that may have been built with an improperly routed cowl harness. If this harness is improperly routed, there is a potential for this harness to make contact with the windshield wiper mechanism during wiper use. If the harness contacts the windshield wiper mechanism and this condition persists over time, the vehicle may experience a rub-through of the wires in the harness. This potential rub-through condition may result in effects ranging from no function loss (if a redundant circuit is damaged) to disabled restraint, crash detection or other performance systems/modes. If there is a function loss, a fault indicator light will illuminate on the driver display alerting the driver to have service performed on their vehicle and/or the vehicle will enter into a reduced performance safe-state mode and a "Limited Performance Mode" indicator light will illuminate on the driver display. Rivian will inspect the harness and reroute, repair, or replace it if necessary to correct the condition. Rivian is launching this campaign for customer satisfaction and to ensure the quality of Rivian vehicles.