Offer applies to 12V batteries only. Offer valid from December 1, 2021 to January 31, 2022 at participating GM Canada Certified Service dealers. Customers who receive the no-charge battery test during this period will receive coupon for an instant rebate of $20 (before tax) on a new ACDelco® battery. Coupon must be redeemed during the offer period and must be presented at the time of appointment. No-charge battery test will be completed by the dealer with a handheld battery tester. Customers purchasing a new battery with the instant $20 rebate must have the battery installed by the same dealer who completed the battery test; rebate can only be applied towards battery in same vehicle on which the no-charge battery test was completed. Offer available to retail customers only. GM Canada reserves the right to cancel, modify or amend the offer without notice. Conditions and limitations apply. See participating dealer for details.