Yes, you can renew most titles up to 2 times, unless needed by another patron. Media items may not be renewed. A MOBIUS title may be renewed only if there are 7 or fewer days remaining in the current loan period. If you try to renew a title more than 7 days prior to the due date, you will receive a "Renewal Too Soon" message.
MOBIUS renewals take some time to process. After renewing, the title may have a "Renewal Pending" status for a short period of time.