Only if that model has such a mode and the displayed behaviour matches its instructions. A working light with poor cooling can have several causes.
What the observation tells you
Showroom settings are designed for demonstration and may leave controls or illumination active. Random service-menu combinations are not a safe way to investigate, and a mode mentioned for another model may not exist on yours. Food still needs protection while the cause is uncertain.
A useful next step
Check the exact manual or ask the manufacturer how to identify the mode. Use only documented owner instructions. If the mode is not confirmed, describe the symptoms without labelling the problem a software setting.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.