Defender L663 – Configurable Driver Assist (MY24 only)
Short description: Factory‑approved activation of Configurable Driver Assist on Land Rover Defender L663 MY24 – includes Adaptive Cruise Control, Lane‑Keep Assist, Traffic‑Jam Assist and customizable driver‑aid settings.
Technical Overview
Land Rover introduced the Configurable Driver Assist (CDA) package for the 2024 model‑year (MY24) Defender L663 as a modular, software‑driven suite that can be enabled in‑shop without any mechanical changes. Consequently, CDA consolidates the following advanced driver‑aid functions:
- Adaptive Cruise Control (ACC) – radar‑based speed matching with automatic stop‑and‑go.
- Lane‑Keep Assist (LKA) – subtle steering torque to keep the vehicle centred.
- Traffic‑Jam Assist (TJA) – low‑speed manoeuvre support in congested traffic.
- Emergency Braking (AEB) – forward‑collision mitigation.
- Driver‑Assist Configurator – in‑vehicle menu that lets the owner enable or disable individual features.
Moreover, from a JLR service‑centre perspective the hardware is already pre‑installed on all MY24 Defenders: front‑mounted radar, an upgraded steering‑angle sensor, and a CAN‑bus‑ready ADAS ECU (part 8U1020). Therefore, activation simply requires a one‑time coding session and, where necessary, the installation of the optional rear‑camera cable for TJA visual assistance.
Hardware Components Pre‑Installed on MY24 Defender L663
- Front Radar Unit – SRR‑03, part
8U1208 - Steering‑Angle Sensor – calibrated for LKA/TJA, part
8U1155 - ADAS Control Module – part
8U1020, firmware v6.03 or higher - CAN‑bus wiring loom with spare channels for CDA
- Optional rear‑camera connector (installed on 90 % of MY24 builds)
Why Activate Configurable Driver Assist?
Defender owners who regularly travel long distances or operate in urban traffic benefit from CDA in three primary ways. First, safety is enhanced because AEB and ACC reduce rear‑end collisions and driver fatigue. Second, comfort improves as LKA and TJA provide hands‑free lane‑keeping and stop‑and‑go support on highways and in traffic jams. Finally, future‑proofing is achieved because the Configurable Driver Assist menu allows owners to add or remove features via software updates, keeping the vehicle up‑to‑date with evolving driver‑aid standards.
Eligibility & Fitment Checks
Activation is strictly limited to MY24 Defender L663 (model year 2024) vehicles that meet the following criteria. In addition, each item must be verified before proceeding:
- VIN confirms a 2024 build (first two characters “JA” for Jaguar Land Rover, year code “X”).
- ADAS ECU part number
8U1020present and firmware ≥ 6.03. - Front Radar unit (SRR‑03) physically installed and connected to the CAN‑bus.
- Steering‑Angle Sensor calibrated for CDA (available in the diagnostic readout).
If any of these items are missing, however, the required hardware can be supplied and fitted as an additional parts‑and‑labour package.
Activation Procedure – Step‑by‑Step
- Pre‑service verification: Connect a JLR
TechTool(or the newerADASdiagnostic) cable to the OBD‑II port. Then, read the ECU versions and confirm the presence of the radar sensor. - Hardware audit: Visually inspect the front bumper for the radar housing and check the steering‑angle sensor connector under the steering column.
- Software enable: In
TechTool → Vehicle Setup → Driver Assist, select “Enable Configurable Driver Assist”. Consequently, the tool writes the activation flag to the ADAS ECU and updates theTCMflash if the latest CDA firmware (v1.3) is not present. - Calibration: Run the “Steering‑Angle Sensor Calibration” routine, and then the “Radar Align” procedure to ensure ACC accuracy.
- Feature configuration: Use the in‑vehicle Driver‑Assist Configurator menu to turn on/off each function according to the customer’s preference.
- Functional test: Perform a road‑test:
- ACC – set speed and verify automatic following distance.
- LKA – gently drift out of lane and observe steering correction.
- TJA – engage low‑speed traffic mode and confirm lane‑centering & stop‑and‑go.
- AEB – simulate a forward‑obstacle (using a controlled test target) to confirm warning and brake actuation.
- Documentation: Export a full coding report (VIN, activation timestamp, ECU firmware versions) and provide it to the customer with a “Configurable Driver Assist Activation Certificate”.
Benefits for Workshops & Fleet Managers
- High‑margin service: £349 + VAT for a complete activation, including diagnostics, coding and certification.
- Standardised workflow: One‑time coding routine works across all MY24 Defenders, therefore minimising training time.
- Regulatory compliance: Activated CDA meets EU/UK safety standards for Level‑2 driver assistance.
- Customer retention: Offering a factory‑grade driver‑aid upgrade differentiates your service centre and encourages repeat business.
Pricing & Ordering Information
JLRCoding’s standard package includes:
- Full diagnostic session with JLR
TechTool. - CDA software activation and firmware update.
- Steering‑angle and radar calibration.
- Feature configuration and road‑test.
- Electronic activation report and printed certificate.
- 12‑month warranty on coding and software work.
Price: £349 + VAT. Additionally, optional hardware kits (radar or steering‑sensor replacement) are quoted separately if required.
To place an order, simply complete the JLRCoding contact form, select “Defender L663 – Configurable Driver Assist (MY24)” and attach a copy of the vehicle’s Service History or VIN verification.
Frequently Asked Questions (FAQ)
- Do I need to replace any hardware to enable CDA?
- No – all required components are factory‑installed on MY24 Defenders. However, a missing radar or steering‑sensor would require a hardware addition, which we can supply as an extra kit.
- Can CDA be de‑activated later?
- Yes – using the same diagnostic tools the activation flag can be cleared. Consequently, all original factory settings are retained.
- Is there a warranty on the activation?
- Yes – 12 months covering any coding errors or software issues. Moreover, mechanical parts are covered by the standard JLR parts warranty.
- Will the activation affect my insurance?
- Most insurers view Level‑2 driver assistance as a safety enhancement and do not increase premiums. Nevertheless, we recommend informing your provider of the upgrade.
Contact JLR Coding Support
Email: support@sx-tool.com
Phone: +86 13823784841
Blog page description: Detailed guide to activating Configurable Driver Assist on Land Rover Defender L663 MY24. Includes hardware checklist, step‑by‑step JLR coding, calibration and functional testing.
Blog page tags: Defender Configurable Driver Assist, MY24 driver assist activation, Land Rover Defender CDA, Adaptive Cruise Control, Lane Keep Assist, Traffic Jam Assist, JLR coding, JLRCoding



