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Service bulletins for the 2020 Land Rover Discovery

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

499 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
N400NAS42020-11-06. Service bulletin. ELECTRICAL SYSTEM. A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range may experience intermittent operation of electrical equipment due to insufficient ground contact.
JLRTB02054NAS12020-10-07. Service bulletin. ELECTRICAL SYSTEM. LOADSPACE AIR SUSPENSION SWITCH OPERATION INVERTED
SFCC_AUG2020_302020-09-08. Service bulletin. ELECTRICAL SYSTEM. The engine will shut off at a stop and restart immediately by using the start button.
SFCC_AUG2020_292020-09-08. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. The engine speed will jump up at idle. The engine will shut down at a stop and restart immediately when pressing the start button.
SFCC_AUG2020_272020-09-08. Service bulletin. ELECTRICAL SYSTEM. The Check Engine Lamp is illuminated and there is a lack of power.
SFCC Jul20_262020-08-07. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; EQUIPMENT. 20B Software Delay until July 15th Software was delayed to include software fix for L551 APIX cable issue Audio popping noise iOS13 Bluetooth improvements Additional improvements
SFCC Jul20_82020-08-07. Service bulletin. ELECTRICAL SYSTEM. The battery cable ground stud may be loose in the body and needs to be replaced. Insufficient ground contact may lead to intermittent operation of electrical equipment.
SSM749422020-08-07. Service bulletin. STEERING; ELECTRICAL SYSTEM. A customer may report that the heated steering wheel does not heat up when selected.
Big 5_06JUL20_362020-08-07. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. The battery cable ground stud may be loose in the body and needs to be replaced. Insufficient ground contact may lead to intermittent operation of electrical equipment.
NAS20.04.006_22020-08-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. A potential issue has been identified on certain vehicles within the listed Affected Vehicle Range may experience intermittent operation of electrical equipment due to insufficient ground contact.
N400NAS32020-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range may experience intermittent operation of electrical equipment due to insufficient ground contact.
SFCC_JUN2020_82020-07-09. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Service Actions H291 and N451 Temporarily Suspended
SFCC_MAY2020_182020-07-08. Service bulletin. ELECTRICAL SYSTEM. No airflow from the HVAC system.
SFCC_MAY2020_242020-07-08. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Stability Control Not Available, Intelligent Emergency Braking System Not Available, ATPC Disabled, Forward Alert Not Available Messages are displayed on the Instrument Cluster.
SSM747862020-05-01. Service bulletin. ELECTRICAL SYSTEM. When attempting to complete the “Replace ECU” application for the Occupant Classification System Module (OCS) the application fails. The error message ‘The following error was encountered: ’ is displayed to the user.
SSM747792020-05-01. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. JLR is investigating reports of Customers experiencing no audio available from the radio feature (FM, AM & DAB), specifically relating to reports of the touchscreen displaying “Radio not available” from vehicle start-up and continues for the entire drive.
SFCC_APR20_PG332020-05-01. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:APPLIANCE:AIR CONDITIONER. No airflow from the HVAC system.
SFCC_APR20_PG312020-05-01. Service bulletin. ELECTRICAL SYSTEM. Popping sound or crackling noise from the audio system while in use.
SFCC_APR20_PG192020-05-01. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. The Check Engine Lamp is on and there is a lack of power.
SFCC_APR20_PG92020-05-01. Service bulletin. ELECTRICAL SYSTEM. N422 - Affected vehicles require an update to the Car Config File. Non-Nav vehicles incorrectly built with TSR and Adaptive Speed Limiter. N439 - Affected vehicles require a software update Chassis Control module (CHCM) and DTC read and clear.
N422NAS12020-05-01. Service bulletin. ELECTRICAL SYSTEM. A potential issue has been identified on certain Land Rover vehicles within the listed Affected Vehicle Range where the Traffic Sign Recognition (TSR) system may not operate as expected. TSR and Adaptive Speed Limiter are not supported on these vehicles without Navigation system. To correct this mis-build condition and prevent these features, and Instrument Panel Cluster (IPC) displays, from not functioning correctly, a software update is required to remove the features, including selections in the IPC menus.
SFCC_MAR12_352020-04-07. Service bulletin. ELECTRICAL SYSTEM. Customer may report that the heated seats are slow to warm or cool off.
SFCC_MAR12_322020-04-07. Service bulletin. ELECTRICAL SYSTEM. No airflow from the HVAC system.
SFCC_MAR12_302020-04-07. Service bulletin. ELECTRICAL SYSTEM. Popping sound or crackling noise from the audio system while in use.
SFCC_MAR12_292020-04-07. Service bulletin. ELECTRICAL SYSTEM. XM radio is inop.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.