Traffic Jam Assist Function Activation for Land Rover & Jaguar

LR Retrofit activates the Traffic Jam Assist function on Land Rover and Jaguar vehicles. We use genuine JLR diagnostic equipment to enable this semi-autonomous driving feature in your vehicle’s camera, radar and steering modules. You receive a vehicle that manages speed, braking and steering automatically in slow-moving traffic.

How Traffic Jam Assist Works

Traffic Jam Assist combines Adaptive Cruise Control with lane centring technology. In congested traffic at speeds below 60 km/h, the system maintains a safe distance from the vehicle ahead while keeping you centred in your lane. It automatically accelerates, brakes and steers. This function reduces driver fatigue during busy commutes and motorway congestion.

• We enable the Traffic Jam Assist feature in the Image Processing Module.
• We activate the steering intervention parameters in the Power Steering Control Module.
• We configure the Adaptive Cruise Control Module for slow-speed following.
• We update the instrument cluster to display Traffic Jam Assist status messages.

JLR Technical Process

1. We read your vehicle’s Car Configuration File through the JLR DoIP diagnostic interface.
2. We compare the stored driver assistance parameters with the factory As-Built data for your VIN.
3. We enable Traffic Jam Assist in the Image Processing Module and Adaptive Cruise Control Module.
4. We programme the Power Steering Control Module for automatic lane centring.
5. We verify the function with live data, radar alignment and a static steering test.

Technical Detail

The Traffic Jam Assist function operates through three primary systems. The forward-facing camera detects lane markings and surrounding vehicles. The Adaptive Cruise Control radar maintains the correct following distance. The Power Steering Control Module applies gentle steering torque to keep you centred. We decode the Car Configuration File and activate the TJA parameters that match your exact build specification.

We programme all affected modules in one 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. Your vehicle maintains full dealer service compatibility after the activation. Traffic Jam Assist then works seamlessly with Lane Keep Assist, Adaptive Cruise Control and Autonomous Emergency Braking on supported models.

Benefits You Receive

• Automatic speed, braking and steering control in slow traffic.
• Reduced driver fatigue during congested commutes.
• Safe following distances without constant pedal input.
• Factory-matched Traffic Jam Assist operation across all driver assistance systems.
• Warning-free dashboard and clear fault memory after programming.

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 Adaptive Cruise Control, forward-facing camera and electric power steering 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, Range Rover Velar L560, Jaguar F-Pace X761, E-Pace X540, I-Pace X590, XE X760, XF X260 and F-Type X152. 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 Adaptive Cruise Control buttons and driver assistance menu
• Your preferred appointment date or remote session time

Book Your Traffic Jam Assist Activation

Contact LR Retrofit with your VIN for a same-day compatibility check. We confirm your vehicle’s exact camera, radar and steering hardware and the Traffic Jam Assist parameters available for your model. We offer workshop appointments and remote programming where possible. Our team responds within one business hour.