As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, SMOKE TOILET CAUTION MESSAGE, COMPLIED WITH QRH. NO VISIBLE FUMES IN FLIGHT DECK. PASSENGERS REPORTED "HAZE" AND COLOR IN CABIN. ACFT RETURNED. R & R RT ACM IAW AMM 21-51-10. OPS CHECKED GOOD IAW AMM 21-51-00. RETURNED TO SERVICE.