FREE Check Engine Light Inspection! CEL on? Receive a FREE check engine light inspection (usually part of the $89 Level 2 Diagnostics)! By appointment only. Cannot be combined with other offers. Restrictions may apply. ... [more...]
FREE Tire Rotation! While you're at it....For every crankcase service (it's more than just an oil change), receive a FREE tire rotation on us! By appointment only. Cannot be combined with other offers. Restrictions may apply. Note: Tire repairs and vehicle alignments can also be arranged during your vehicle's visit to our shop. ... [more...]
FREE Courtesy Shuttle! When you bring us your vehicle for service, receive a FREE courtesy shuttle within Prescott (Certified personnel permitting). By appointment only. Valid for all customers. Some restrictions may apply. ... [more...]
Leave a Review

We appreciate your business & your feedback.

If you are a satisfied customer, please take a moment to leave your testimonial

We are proud members of the following organizations:

Transmission Repair Automotive Service Excellence Automatic Transmission Service Group Certified Transmission National Federation of Independent Business Sonnax

Prescott Auto Repair, Certified Transmissions, Inc. - Serving Arizona and Beyond Since 1987

In Prescott since 1987, Certified Transmissions, Inc. is Arizona's Central Highlands premiere, local family built, owned, and operated auto repair facility. Certified not only specializes in all types of automatic and manual two-wheel and four-wheel drive transmission assembly, transfer case, and differential care, we also offer the same level of ASE Master Technician expertise for all our customer's general automotive needs, except tire repair, and we can arrange for that. Even complicated vehicle door, window, dash panel, heating/air conditioning, lighting, brake, fuel, power steering, engine, suspension, and all electrical issues are welcomed. Certified offers free courtesy transportation within Prescott when you leave us your vehicle for diagnostics or service, personnel permitting. We can also arrange for vehicle towing to our facility, with the cost included on your final invoice, saving you an unexpected “up front” expense.

Whenever possible, premium, original fit and function parts and fluids, or better, are Certified Transmissions' only choice for our customer's vehicles. We feature such products as LUK, BG, TranStar, LubeGard, Sonnax, and many Original Equipment (OE) applications. This ensures all our customer's transmission assemblies, transfer cases, and differentials rebuilt in-house at Certified, as well as all our general service, maintenance, and repair jobs have the best, longest lasting results possible. Our most common parts and labor warranty for transmission assemblies rebuilt in-house at Certified is two-year, twenty-four thousand mile, which can be extended up to a four-year, forty-eight thousand mile parts and labor warranty.

The staff at Certified Transmissions, Inc. provides a combined 250 years experience in automotive and customer service excellence to help keep you informed and your vehicle, be it personal, commercial, or fleet car, pickup, van, truck, even large RV in top running condition. Our Nationwide network of Certified contacts, and an inventory of transmission and other related parts for vehicles from the last fifty years means it's highly likely we can answer your automotive questions and meet your vehicle's needs, even for vintage vehicles. Customers note our high level of integrity and responsibility to the code of ethics represented by our acceptance in these professional certification and auditing organizations:

Automotive Service Excellence (ASE), Better Business Bureau (BBB) A+ Accreditation, Automatic Transmission Rebuilders Association (ATRA), Automatic Transmission Service Group (ATSG), Certified Transmission Nationwide, Automotive Service Association (ASA), National Federation of Independent Business (NFIB), and Certified Auto Care. Our Owner and President, Mike Pfeiffer, is personally a member of the elite Sonnax Tasc Force, whose responsibilities include research, development, and implementation of updates and fixes for common, and uncommon, transmission assembly issues worldwide.

One of our customers notes, “The owner and mechanics are extremely knowledgeable in their trade. Not only do they service transmissions, but they also do most other repairs, too! They are dependable, trustworthy, friendly, courteous and efficient. Being a single, senior lady, it gives me great comfort to know my vehicle is well taken care of.” Another satisfied customer writes, “It's hard to find a shop I can trust, but these guys are great!!! They keep my car in tip top condition and are always prompt and at a fair price. It's important to me that they are all ASE CERTIFIED, confirming to me that they are qualified and serious about what they do. I would never take my car anywhere else!”

We not only have satisfied customers from all over Arizona, we have more than just a few from New Mexico, Texas, California, Nevada, Oregon, Utah, Idaho, Washington, Nebraska, and even back East! Every one of them, no matter how local or far away receives the same superior quality of honest service, price, and information from all of us at Certified Transmissions, Inc. 

We invest tens of thousands of dollars to provide the most up-to-date and comprehensive Staff training, plus vehicle diagnostic and service tools and equipment possible. At a cost of only $89, our complete Level-2 electrical, mechanical, and fluids drive train diagnostics (engine, transmission assembly, transfer case, and differential) is a small investment for your peace of mind, especially BEFORE you purchase a used vehicle, or your current transportation begins exhibiting problems.

So, if you have vehicle driveability issues of any kind, or just need to know something about your “ride,” please call or come by and give us the opportunity to serve you. Certified Transmissions, Inc. is located at 1089 W. Iron Springs Road, Prescott, Arizona, 86305. You can phone us using the number at the bottom of this page; or FAX us at (928) 778-1777; or e-mail us at certifiedprescott@gmail.com. Thank you for your trust and business, we really do appreciate it!

Find Our Shop

1089 W. Iron Springs Road
Prescott, AZ 86305
  View Larger Map