Generally debit cards are tied to your personal chequing or savings account – not a term deposit such as a guaranteed investment certificate (GIC). GICs are generally locked until they mature, or until you cash it in, depending on the options you choose. Learn more about GICs.
That said, regardless of what can be accessed, if you lose your debit card, alert your bank or financial institution immediately to avoid becoming a victim of identity theft. Some financial institutions allow you to cancel or suspend your debit card online or through a mobile app. This ensures no one has access to your accounts, and you can check to make sure no charges were made before you were able to cancel your card. Your financial institution will issue you a new card.