Which of the following steps is essential when changing your address with the DMV?

Updating your driver's license is essential when you change your address because it ensures that your personal identification reflects your current residence. The California DMV requires that any changes to your address be updated on your driver's license within a specific time frame, usually within 10 days, to maintain the accuracy of records and ensure that you receive important communications related to your driving record, such as renewal notices or registration information.

Moreover, having the correct address on your driver's license helps avoid potential issues in situations such as traffic stops or law enforcement checks, where accurate identification is necessary.

While informing your insurance company is important for ensuring proper coverage, and updating vehicle registration is also necessary, the primary focus in this context is the requirement to keep the driver's license current and accurate with respect to your address. Notifying your employer, while it may be a good practice, is not mandated by the DMV.