How do I change my security code?
The master user can change the master code by entering: master code + [8] + [02] + new master code + new master code again. Other users cannot change their own codes; only the System Master or Partition Master can assign or change security codes for other users. (Page 32)
From the official Honeywell Vista-20P Security System manual, page 32
Have a follow-up question?
Answers from the official manual.
Common questions