B737 MAX Series Undifferentiated
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 87; Flight Crew Type 8086
Confusion; Training / Qualification
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Maintenance; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural FAR; Flight Deck / Cabin / Aircraft Event Other / Unknown
Flight Crew Overcame Equipment Problem; General Maintenance Action
Human Factors; Procedure; Aircraft
First legs on MAX aircraft in over two years; and when I went to accomplish a Heads-up Guidance System (HGS) takeoff and landing; I became confused on where the CAT III placard was located/displayed on MAX aircraft.  Nothing in logbook about downgrade; and HGS presentation was correct; but I could not locate the placard.  We continued with flight; and researched the placard location enroute with MAX manual resources in flight to understand correct CAT III placard display.  At conclusion of flight; I intended to contact a Check Airman and/or the flight training department to understand; but then my FO sent me a picture of a MAX he was operating the next day with the CAT III placard displayed on Captain Auxiliary Display HGS Annunciator Panel.I next contacted the Chief Pilot to inform him and Maintenance (MX) that this aircraft's displays were not set up properly.  The Chief Pilot said he would contact Maintenance Control to query.  He called back a few minutes later to explain that Maintenance had inadvertently de-selected the CAT III placard 'Off' on this aircraft; and would send someone to correct ASAP as the aircraft was on the ground in ZZZ.Chief Pilot suggested a safety report to highlight location of MAX aircraft placard location as it is digital versus 'the bone;' as well as highlight there appears to be no information in MAX manuals concerning the placard display.  The only reference found was for the MAX AUX Display HGS Annunciator Pane; which only displays an example of FO's display; nothing about the Captain-side display.
B737 MAX Captain reported that the CAT III Placard was not visible to the flight crew due to the cockpit displays not configured properly by Maintenance.