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This bug is created as a clone of upstream ticket:
https://fedorahosted.org/sssd/ticket/1541

autofs map was tech preview for rhel6.3/sssd-1.8. But it is fully supported for rhel6.4/sssd-1.9

But the manpage of sssd-ldap still shows:

{{{
ldap_autofs_search_base (string)
           An optional base DN, search scope and LDAP filter to restrict LDAP
           searches for this attribute type.

           syntax:

               search_base[?scope?[filter][?search_base?scope?[filter]]*]

           The scope can be one of "base", "onelevel" or "subtree". The filter
           must be a valid LDAP search filter as specified by
           http://www.ietf.org/rfc/rfc2254.txt

           For examples of this syntax, please refer to the “ldap_search_base”
           examples section.

           Default: the value of ldap_search_base

            This is an experimental feature, please use
           http://fedorahosted.org/sssd to report any issues.
}}}

ldap_autofs_search_base is no longer mentioned a experimental feature in the manpage sssd-ldap. Verified with version 1.9.2-24

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHSA-2013-0508.html