Visual inspection, retrieval and reporting on trouble codes are free of charge. Additional diagnostics may be recommended and charges may apply. May not apply to vehicles 1996 and older. Coupon must be presented at vehicle drop-off. Not valid in other centers. Limit of one coupon per vehicle. May not be combined with other offers, discounts, or special fleet pricing. Valid on most vehicles, but certain exclusions apply, see center for details. Void where prohibited or if altered.