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Service bulletins for the 2011 Land Rover LR4

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.

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

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Only bulletins with component: Heating and air conditioning are shown. Show all

Bulletins, newest first
LTB00587NAS22021-12-13. Service bulletin. UNKNOWN OR OTHER; ELECTRICAL SYSTEM:SOFTWARE; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT; ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SOFTWARE. Technical Bulletin: Potential Voltage Dip To Headlamps when heated windshield and Heated Rear Window Are Deactivated
LTB00693NAS22017-06-14. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. SITUATION: INADEQUATE A/C PERFORMANCE MAY BE EXHIBITED. UPON INSPECTION, LOW PRESSURE IS RECORDED ON THE HIGH PRESSURE SYSTEM, HIGH PRESSURE IS RECORDED ON THE LOW PRESSURE SYSTEM, AND THE COMPRESSOR CLUTCH (WHERE APPLICABLE) IS WORKING PROPERLY.
SSM723302017-06-07. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; EQUIPMENT:ELECTRICAL. "ISSUE: THE MESSAGE ""RADAR SENSOR BLOCKED"" APPEARS IN INSTRUMENT PACK DISPLAY. IF BLOCKAGE OCCURS WHILE ACC IS BEING USED, “DRIVER INTERVENE” AND/OR ""RADAR SENSOR BLOCKED"" MESSAGE WILL APPEAR ON THE CLUSTER AND DTC C1A67-97 SET. BLOCKAGE CAN ALSO OCCUR WHEN ACC IS NOT BEING USED. CAUSE: ""RADAR SENSOR BLOCKED"" INDICATES THAT THE ADAPTIVE SPEED CONTROL SYSTEM'S VISIBILITY HAS BEEN REDUCED DUE TO AN OBSTRUCTION. ACC CONTINUALLY SCANS FOR OBJECTS AHEAD AND, IF IT SEES NO OBJECTS I.E. VEHICLES, ROAD SIGNS, LAMP POSTS, GUARD RAILS ETC., IT WILL INDICATE A BLOCKAGE EVEN IF THE ACC IS NOT USED. THE C1A67-97 DTC FLAGS A RADAR BLOCKAGE SITUATION AND NOT A SYSTEM FAULT."
LTB00693NAS12017-06-05. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. "SITUATION: INADEQUATE A/C PERFORMANCE MAY BE EXHIBITED. UPON INSPECTION, LOW PRESSURE IS RECORDED ON THE HIGH PRESSURE SYSTEM, HIGH PRESSURE IS RECORDED ON THE LOW PRESSURE SYSTEM, AND THE COMPRESSOR CLUTCH (WHERE APPLICABLE) IS WORKING PROPERLY. CAUSE: THIS MAY BE CAUSED BY THE A/C COMPRESSOR DIRECT PRESSURE SENSING (DPS) VALVE BEING WORN."
SSM676372017-06-01. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT:APPLIANCE:AIR CONDITIONER. "ISSUE: LAND ROVER ENGINEERING HAVE BEEN MONITORING REPORTS FOR LACK OF COOLING FROM THE AIR CONDITIONING SYSTEM ON HIGHER TIME IN SERVICE VEHICLES, WHERE INSUFFICIENT PERFORMANCE OF THE AIR CONDITIONING COMPRESSOR HAS BEEN FOUND TO BE THE ROOT CAUSE OF THE ISSUE. COMPRESSOR PART NO. LR010723 & LR013934"
LTB00587NAS22017-05-31. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW. "SITUATION: THE HEADLAMPS, INSTRUMENT CLUSTER (IC), AND TOUCH SCREEN (TS) MAY DIM MOMENTARILY WITHOUT ANY USER INPUT. CAUSE: AT AMBIENT TEMPERATURES APPROXIMATELY BELOW 38F/4C, THE HEATED WINDSHIELD AND HEATED REAR WINDOW WILL TURN ON AUTOMATICALLY. WHEN BOTH THEN AUTOMATICALLY TURN OFF, A LARGE LOAD CHANGE TO THE ELECTRICAL POWER SUPPLY SYSTEM MAY OCCUR. THIS LOAD CHANGE MAY LEAD THE CENTRAL JUNCTION BOX (CJB) TO ENTER A LOAD PROTECTION COUNTERMEASURE."
LTB00572NAS12017-05-26. Service bulletin. VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:HEATER CORE; ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS; ELECTRICAL SYSTEM. "SITUATION: THE HEATED FRONT WINDSHIELD MAY NOT OPERATE AND EVIDENCE OF HEAT DAMAGE MAY BE FOUND IN THE ENGINE JUNCTION BOX (EJB) / UNDERHOOD FUSE BOX. DIAGNOSIS MAY DETERMINE THAT THERE MAY BE SIGNS OF VISIBLE HEAT DAMAGE TO EITHER THE HEATED FRONT WINDSHIELD FUSES, HEATED FRONT WINDSHIELD RELAY, OR THE EJB / UNDERHOOD FUSE BOX. CAUSE: AT AMBIENT TEMPERATURES APPROXIMATELY BELOW 38F/4C, THE HEATED FRONT WINDSHIELD AND HEATED REAR WINDOW WILL TURN ON AUTOMATICALLY. THIS MEANS THE HEATED FRONT WINDSHIELD AND HEATED REAR WINDOW MAY BE ON FOR LONGER PERIODS OF TIME WITHOUT THE DRIVER KNOWING. THE EXTENDED OPERATION CAN RESULT IN OVERHEATING OF THE FUSES WITHIN THE ENGINE JUNCTION BOX (EJB) / UNDERHOOD FUSE BOX."
SSM676372017-05-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. "ISSUE: LAND ROVER ENGINEERING HAVE BEEN MONITORING REPORTS FOR LACK OF COOLING FROM THE AIR CONDITIONING SYSTEM ON HIGHER TIME IN SERVICE VEHICLES, WHERE INSUFFICIENT PERFORMANCE OF THE AIR CONDITIONING COMPRESSOR HAS BEEN FOUND TO BE THE ROOT CAUSE OF THE ISSUE. COMPRESSOR PART NO. LR010723 & LR013934 ACTION: THE COMPRESSOR SUPPLIER IN CONJUNCTION WITH LAND ROVER ENGINEERING HAVE MADE IMPROVEMENTS TO THE COMPRESSORS TO IMPROVE THEIR SERVICE LIFE AND RELIABILITY, AND TWO IMPROVED COMPRESSORS HAVE BEEN SUPPLIED TO PARTS OPERATIONS LR010723 SUPERSEDES TO LR056364 LR013934 SUPERSEDES TO LR056365 PLEASE ENSURE THAT THE LATER PART NUMBER IS FITTED TO ANY VEHICLE THAT IS SUFFERING FROM LACK OF COMPRESSOR PERFORMANCE."

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