Mercedes-Benz AG, (“MBAG”), the manufacturer of Mercedes-Benz vehicles, has determined that in certain Model Year (“MY”) 2020-2021 CLA-Class (118 platform), GLE-Class (167 platform) and GLS-Class (X167 platform) vehicles, the instrument cluster software might not meet current production specifications. If the driver were to activate the hazard lights while the ignition is switched off, the hazard light switch would continue to flash as intended, but the illumination of the additional switches in the vehicle (e.g. switch bar, overhead control unit, steering wheel, etc.) might be deactivated. If the driver were to switch off the hazard lights during this ignition-off, the switch illumination would be activated again throughout the vehicle as soon as the ignition is switched on. However, if the driver were to start the engine while the hazard lights are still switched on, the illumination of the vehicle interior switches would stay deactivated until the hazard lights are switched off and a new ignition cycle initiated. If the interior light switches are not illuminated, they may be more difficult to find and operate, increasing the risk of a crash. Furthermore, the switch illumination might not comply with all the requirements of FMVSS 101 5.3.1. The functions of the hazard lights and the overhead control unit as well as all switches would not be affected. All interior cabin lighting remains fully functional.