Did you check out the great FAQ that we have on this? https://turbotax.community.intuit.ca/community/other-income/help/how-do-i-enter-my-rental-income-and-expenses-in-turbotax/00/873580
When can I deduct vehicle expenses when I have a rental property? Here is great information from CRA https://www.canada.ca/en/revenue-agency/services/tax/businesses/topics/rental-income/completing-form-t776-statement-real-estate-rentals/rental-expenses-you-deduct/motor-vehicle-expenses.html