Jaguar has identified a safety defect affecting the Anti-lock Braking System (ABS) of certain 2015 Land Rover LR4 vehicles. According to reports filed with the NHTSA, ABS software designed to check the condition of the system and its associated network for defects, also known as ‘Good Check’, may have not been installed correctly into the ABS software.
The problem could result in a back spike being generated in the Cooler Box causing the ABS control unit to remain “live” for longer that the design specification. During this unexpected “live” period, the system continues to run self-diagnostic routines after other systems have shut down. Failure to detect the presence of these components will result in a fault, and next time the vehicle is started, a Dynamic Stability Control (DSC) defect will be detected.
- The DSC warning lamp will illuminate in the instrument cluster and the Roll Stability Control (RSC), Traction Control (TC) and Hill Decent Control (HDC) systems are disabled.
- Furthermore, the air suspension will go into “Safe Mode”, displaying an Amber warning light and a ”Suspension Fault” message is displayed on the instrument cluster.
The vehicle will not automatically restrict its maximum speed and no speed restriction message will be available to the driver. Electronic Brake-force Distribution (EBD) & ABS remain fully operational and unaffected by this condition.
Land Rover will notify owners, and dealers will update the ABS software, free of charge. For more information about the problem, owners can contact Land Rover customer service at 1-800-637-6837. Land Rover’s recall number is P062 and the NHTSA campaign number is 15V-214.