Trusted specialists for 50+ years on the Sunshine Coast

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Reprogrammed for Heavy Duty Performance

Your transmission’s computer is programmed mainly for everyday driving. Once driveline load increases through towing, larger tyres, engine tuning, or demanding use, the factory calibration can struggle to keep you in the right gear at the right time.

Transmission software remapping adjusts how the ECU controls the transmission, tailoring its behaviour to your vehicle setup, load, and driving conditions. The result is a transmission that responds more confidently to how you actually use your vehicle.

Key Benefits:

  • Tailored shift strategy
  • Stronger clutch control
  • Confident gear selection

Factory Transmission Limits

Why ECU Remapping Becomes Necessary

Designed for Daily Driving

Your factory transmission prioritises comfort and efficiency. A software recalibration adjusts shift logic, pressure control, and torque management to better suit towing challenges and off-road adventures.

Increased Heat and Accelerated Wear

When the transmission ECU isn’t calibrated for increased load or vehicle modifications, excessive clutch slip and poor torque management can occur. This creates unnecessary heat, accelerating fluid degradation and internal component wear over time.

Poor Gear Selection Under Load

The transmission may hold the wrong gear, shift too early, or hunt between gears when towing or 4WDing. This leads to higher engine load, reduced efficiency, inconsistent drivability, and added strain on the transmission.

The RHA Pro Solution

SMARTER TRANSMISSION SOFTWARE

Transmission software remapping is performed by extracting the factory calibration. Key control tables are then recalibrated, including shift strategy, line pressure control, torque management, and converter lock-up behaviour.

These changes allow the transmission to apply clutches more decisively and accurately. Once programmed back into the ECU, the transmission operates with improved control, reduced slip, and behaves better to real-world use.

Up to 40%

Faster shift response*

Up to 80%

Improvement in shift decision accuracy*

*Results vary depending on vehicle, usage, load, and driving conditions.

Book Your Next Upgrade

Ready for Confident Towing & Touring? Make an enquiry or call us today and start planning your upgrade with your trusted 4wd specialist

Book Your Next Upgrade

Ready to Upgrade your 4WD’s performance and reliability for towing or off-road use? Make an enquiry or call us to book your upgrade with a trusted specialist.

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The Specialist Difference

Why Choose RHA For your Upgrade

RHA specialises solely in automatic transmissions, with over 50 years of dedicated experience. That focus gives us a deep understanding of how upgrades interact with each transmission design, vehicle setup, and operating conditions. The result is upgrades done properly, with reliability, performance, and longevity in mind.

Your Key Benefits

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Established leadership in the industry

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Transmission expertise under one roof
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Australians who have benefited from our services

The Ultimate 4WD Solution

What is RHA Pro?

RHA Pro is Ron Hill Automatics solution for Australia’s towing, touring, and performance 4WD owners. It’s designed to maximise your transmission’s reliability and load-handling capabilities through a range of custom, vehicle-specific upgrades.

  • Built for towing, touring, and performance 4WDs
  • Maximises your transmission’s reliability under stress
  • Increases load-handling capabilities for heavy-duty use

ANSWERS AND INFORMATION

Frequently Asked Questions

Will transmission remapping make my daily driving harsh?

No. The remap is tailored to your vehicle and how you use it. Shifts become more decisive and controlled, but not harsh. Normal driving remains smooth, with improved response when load or demand increases.
Yes. Remapping can benefit both stock and modified vehicles. Even standard vehicles used for towing or carrying heavy loads often benefit from improved shift logic and torque management.
In many cases, fuel efficiency improves. Optimised shift timing and better torque converter lock-up reduce unnecessary engine load, particularly during highway driving and towing.
Yes. The factory calibration can be restored if required, and remaps can be refined further if your vehicle setup changes, such as larger tyres, additional towing load, or future engine modifications.
Strongly recommended. An engine tune increases torque output, which can overwhelm factory transmission calibration. Remapping aligns the transmission with the new torque characteristics to restore proper shift behaviour and protect internal components.

Do you have more questions?

Contact us and we’ll talk you through it.

Ron Hill Automatics Sunshine Coast

Performance Automatics for Towing, Touring & 4WDs

Honest advice, upfront pricing and dependable service for the vehicles we know best

Book Your Next Upgrade

Ready for Confident Towing & Touring? Make an enquiry or call us today and start planning your upgrade with your trusted 4wd specialist

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