Where is my gem module located?? Can I clear the message after I replace it? on 2006 Mercury Mariner Hybrid

Dealer just told me I need this module to fix a message!!!

Asked by for the 2006 Mercury Mariner Hybrid
the gem module needs repl and reflashing to program let them do it as to save time and get warranty if by chance there wrong
thanks for the info, but the dealer wants too much for the fix..Any ideas?
seek another est from shop in your area that can perform the work
1 more answer
have dealership do it since they can flash it.