Transmission Repair in Diamond Bar, CA


At Honest-1 Auto Care, we take care of all your transmission repair needs, whether it’s something as small as replacing transmission fluid or as big as needing a whole new transmission. Our well-trained mechanics are certified and insured, and we will make sure you get the best service we offer.

Three Transmission Services to Suit Your Needs and Budget


We have three transmission services to choose from, depending on your needs and budget Basic, Preferred, and Supreme.


With our Basic Automatic Transmission service, we perform a drain/fill service; with our Preferred Automatic Transmission Fluid Exchange Service we hook up the transmission fluid exchanger, exchanging all the old fluid with new fluid in the correct amounts recommended by the manufacturer; for added protection, we include the transmission fluid conditioner. We then inspect all lines and hoses for leaking and cracks, as well as for proper connection and operation of all linkages.


With our Supreme Automatic Transmission Service, in addition to removing and replacing the old fluid, we remove the transmission pan and filter, clean the pan and reinstall it with a new gasket, and filter. We then inspect everything and dispose of all the old fluid in accordance to the ESA (Environmentally Sustainable Actions) program for a cleaner environment.


Request a Quote

At Honest-1 Auto Care, we know performing one of these transmission services in Diamond Bar, CA, will help prevent costly repairs or replacements in the future. Contact our transmission shop to schedule an appointment today or you can also give us a call at (909) 303-6523.

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