You've trusted the experts at AAMCO for nearly 50 years - from oil changes to cooling systems to services that will keep your car in warranty and everything in, on or under your car. The pros at Aamco know your car like the dealer and can provide maintenance serivce for all makes and models for less. When the light comes on, turn to AAMCO to check it out and get the repairs you need to get back on the road - lights out and worry-free! For decades, AAMCO has been the trusted source for the diagnosis, service and repair of transmissions. Free Transcan diagnosis - an $85 value!