You must use the trademark within 3 years from the date it was registered and, if your mark was registered after August 10, 2018, you must also file a declaration of use 3 years from the registration date.
More so, 3 consecutive years of not using the mark is also a ground for cancelled registration. To satisfy the requirements, the mark must be commercially used and the commerce or trade must happen in the jurisdiction of Mexico.
Finally, to renew your trademark registration, you must file a declaration of use along with the renewal application.