TECHNICAL SERVICE BULLETIN: SERVICE ACTION: MOOD LAMP OPERATION LOGIC IMPROVEMENT (SA536) - This bulletin provides the procedure to upgrade the software logic of the interior Mood Lamp Module (MLM) system on some 2023MY Niro EV, P/HEV (SG2 P/HEV, EV) vehicles produced from April 14, 2023 through May 15, 2023 and 2023MY EV6 (CV) vehicles produced from April 18, 2023 through May 13, 2023, which may exhibit an inoperative mood lamp.
