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Kenneth Smith
· 4 months ago
GT
Guaranteed Transmission
Honest, transparent transmission care that keeps San Antonio moving.
4.8(19 reviews)
auto-repair
$$$
About
Guaranteed Transmission in San Antonio specializes in car repair and transmissions. Customers praise honest diagnostics, clear explanations, and upfront pricing, with staff like Tyler and Hector noted for helpful, straightforward service. The shop is trusted for reliable work on personal and company vehicles, backed by a three-year warranty on transmissions and transparent, trustworthy care.
Photos
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Location
1307 Austin Hwy, San Antonio, TX 78209, USA
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Services
Transmission Diagnostics
Comprehensive inspection and honest assessment of transmission issues to identify root causes.
Transmission Repair and Replacement
Expert repairs and full replacements with high-quality parts and a 3-year warranty for durability.
Preventive Maintenance
Routine services like fluid changes and seal replacements to extend transmission life and prevent failures.
Fleet Vehicle Services
Specialized repair and maintenance for company trucks and commercial vehicles to ensure reliability.
Second Opinion Consultations
Free consultations to review quotes from other shops and provide transparent advice on repair options.
4.80 · 19 reviews
Overall rating
5
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Christina Rao-Singleton
· 6 months ago
Guaranteed Transmission put A transmission in my 2008 Chevy Malibu last year 2025 and guaranteed it. The work was complete within just a few days. David the service guy was ever so kind and a super informative about the entire procedure. I brought my car back in today is there installing a sway bar and the new gentleman that works there is also very informative, polite and knows exactly what needs to be done and don't forget the name says it all. GUARANTEED TRANSMISSION!! One more very important point. They allowed me to pay for the transmission repair at my pace which actually I paid a few days before the work,during and after. They will work with you. Very fair prices, honest bunch of guys..
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Norma De Leon
· 9 months ago
Spoke to Tyler about the problem I’ve been experiencing with my car, he took the time to listen and gave me suggestions on what to do. After checking my car Tyler was helpful, and honest in diagnosing my car. No one has found the key problem in over a year and I have spent lots of money to only find the problem still persists.Thank you Tyler, you gave me some much needed peace of mind, I highly recommend gts transmission.
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Cameron Goodwin
· 11 months ago
Really recommend Guaranteed Transmission. Tyler was super helpful and went out of his way to talk with me and give his opinoin on a quote I got from the dealership. I originally had my car towed here after my trans went out only to realize I had two months left on my warranty. They were super nice about it and I had the car towed from here to the dealership. I then went back and spoke with Tyler after my service recommendation came back from the dealership and Tyler spent time with me to explain what the dealership recommended and gave me some questions to ask them. These guys seem honest about the work they do, that is always my biggest worry with shops nowadays. They certainly have my business moving forward.
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John A Favela Jr
· 11 months ago
This place is legit and honest. We take our company trucks here for all major jobs
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Juan Aviles
· 1 year ago
Transmission gave out on my truck stop by talked to Hector he explained everything in detail. Had my truck in and out in 2days, The employees were friendly. Its been 2weeks now runing good, Definitely recommend 👌
