How All Terrain Progress Control Works
All Terrain Progress Control functions as a low-speed off-road cruise control. It operates between 1.8 km/h and 30 km/h. The system automatically manages engine torque and braking to keep the vehicle moving at your chosen speed. You focus fully on steering while the vehicle handles all throttle and brake control on rough surfaces.
- We enable the ATPC function inside the All Terrain Control Module.
- We activate the ATPC calibration data in the Anti-lock Braking System.
- We configure the Engine Control Module to accept ATPC speed commands.
- We synchronise the Terrain Response system with the correct ATPC profiles.
JLR Technical Process
- We read your vehicle’s Car Configuration File through the JLR DoIP diagnostic interface.
- We compare the stored Terrain Response and ATPC parameters with factory As-Built data for your VIN.
- We enable ATPC in the All Terrain Control Module and Engine Control Module.
- We calibrate the Anti-lock Braking System and Transmission Control Module for ATPC operation.
- We verify the function with live data, fault code scanning and a static test.
Technical Detail
All Terrain Progress Control works closely with Terrain Response 2, the Anti-lock Braking System and the Engine Control Module. We decode your Car Configuration File and activate the ATPC parameters that match your exact build specification. We programme all affected modules in a single diagnostic session. This method keeps the original JLR software architecture fully intact and avoids generic coding tools that can trigger warning lights or system faults.
We calibrate the system to respond correctly in every Terrain Response mode: Grass Gravel Snow, Mud Ruts, Sand and Rock Crawl. The ATPC system then manages wheel slip and vehicle speed without driver throttle. Your vehicle retains complete dealer service compatibility after the activation.
Benefits You Receive
- Consistent low-speed control on steep descents and technical terrain.
- Reduced driver workload during challenging off-road sections.
- Factory-matched ATPC operation across every Terrain Response mode.
- Warning-free dashboard and clear fault memory after programming.
- No aftermarket hardware or visible modifications.
Why Choose LR Retrofit
- We use genuine JLR diagnostic hardware and factory-approved software.
- We maintain the complete JLR As-Built database for every supported model.
- We provide a written activation verification report.
- We support workshop appointments and remote programming where available.
Supported JLR Vehicles
We support Land Rover and Jaguar vehicles with Terrain Response 2 and the required ABS and engine hardware. This includes the Range Rover L405 and L460, Range Rover Sport L494 and L461, Discovery 5 L462, Defender L663, Discovery Sport L550, Range Rover Evoque L551 and Range Rover Velar L560. Some Jaguar F-Pace and E-Pace models with All Wheel Drive and Adaptive Dynamics also qualify. Our team confirms your vehicle’s compatibility using your VIN before booking.
What You Need Before Booking
- Your full 17-character VIN
- Current vehicle mileage
- A photo of your Terrain Response selector and instrument cluster
- Your preferred appointment date or remote session time
Book Your All Terrain Progress Control Activation
Contact LR Retrofit with your VIN for a same-day compatibility check. We confirm your vehicle’s exact Terrain Response hardware and the ATPC parameters available for your model. We offer workshop appointments and remote programming where possible. Our team responds within one business hour.
