Generally, yes, you’re obligated to inform your insurer if you’re convicted of impaired driving, or if you have your license suspended. These constitute material changes in risk, which policyholders are always obligated to inform their insurer of (whether car, home, or other insurance). That most certainly includes impaired driving convictions, license suspensions, or other such penalties. If you’re insured by a private insurer (such as in Alberta, Ontario, or Quebec), you’re obligated to inform your insurer of convictions or suspensions. Failure to do so would result in a void policy — and they’d find out about it eventually anyway. In provinces with public insurers, there is usually no need to inform the insurance provider if the incident occurred in your home province. Since driver’s licenses are issued by the insurers in these provinces (including BC, Saskatchewan, and Manitoba), they’ll know of any suspensions or charges.