As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ON CLIMB OUT AT APPROX FL290, (PAX DR OUT HNDL) CAUTION MESSAGE ILLUMINATED. CREW COMPLIED WITH QRH, INCLUDING VISUALLY VERIFYING ALL 8 ALIGNMENT INDICATORS CONFIRMED DOOR LOCKED AND OUTER HANDLE STOWED. CAS MESSAGE PERSISTED. LANDING WAS UNEVENTFUL AND NO EMERGENCY WAS DECLARED. REPLACED PROXIMITY SWITCH PS2MB. PASSED OPS TEST, AIRCRAFT RETURNED TO SERVICE.