What does the system do?
An R button can request a vehicle-specific driving function. This entry must not be confused with the reverse gear position.
Additional options explained
Power on R button – Function switching
What an R-button request means and why the fitted button does not by itself establish compatibility.
Illustrative imagery, partly AI-generated. Components and their arrangement vary between vehicles.
Function, changes and requirements
What does the option mean?
The request concerns assigning supported calibration states to that button. Available states and their indication need a vehicle-specific definition.
What do we check on your vehicle?
We inspect the actual button, signal, ECUs and software. Neither a function nor additional power is guaranteed from the label alone. The exact control unit, software version, fitted hardware and intended use determine the scope. A configurator entry does not replace this assessment.
Frequently asked questions
Does every vehicle support this function?
No. We check the vehicle, control unit and software against the actual supported function. Include existing faults and modifications. Transmission functions also require the exact gearbox version.
Does selecting an option approve its use?
No. Changes to emissions, noise or protection functions can affect legal use and operating safety. This page promises no road approval; diagnosis and a permissible repair are considered first.
Explore your next step
A better drive. With the right software.
Custom ECU calibration and professional file service directly from RG-Racing.
Learn more →Diagnostics and software analysis from one source
Send a photo of the message and any fault codes. We review the information and discuss what should be checked next.
Learn more →Does this option suit your project?
Tell us the vehicle, engine, gearbox, modifications and your goal. We clarify the precise scope before preparing an offer.
Enquire about this option →