What Is Transmission Tuning?
Modern automatic transmissions are controlled by a Transmission Control Module (TCM) — a computer that governs when and how the transmission shifts, how much line pressure is applied, and when the torque converter locks up. The factory calibration is a compromise designed to work acceptably across a wide range of drivers and conditions.
Transmission tuning involves reprogramming the TCM with custom calibrations tailored to your vehicle, engine output, and intended use. The result is a transmission that shifts the way you want it to — whether that means firmer, faster performance shifts or smoother, more fuel-efficient highway cruising.
What We Can Tune
Our transmission tuning services cover a wide range of parameters:
- Shift points — when the transmission upshifts and downshifts
- Shift firmness — how aggressive or smooth each shift feels
- Line pressure — controls clutch pack clamping force
- Torque converter lockup — when and how the TCC engages
- Shift speed — how quickly the transmission completes a gear change
- Tow/haul and performance mode calibrations
- Eliminating factory-programmed shift flares or delays
- Post-rebuild or post-repair recalibration
HP Tuners — Our Platform of Choice
Riley Auto Care & Transmissions uses HP Tuners for TCM calibration work. HP Tuners is the industry-leading platform for GM, Ford, Dodge, and other domestic vehicles, giving us precise control over every transmission parameter. Combined with our hands-on transmission expertise, we can deliver results that a software-only tuner cannot.
Transmission Tuning in San Marcos, TX
Whether you want better performance, smoother shifts, or improved towing behavior, transmission tuning can transform how your vehicle drives. Call or book online to discuss your goals — we'll tell you what's possible for your specific vehicle.
Location
Transmission Tuning Near Me — San Marcos, TX
Conveniently located at 1334 TX-123, San Marcos, TX 78666 — easy access from I-35, serving Kyle, Buda, New Braunfels, Wimberley, and all of Central Texas.