WenmarOpen by Wenmar Pro

Service bulletin SSM72178

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10104322
Published by NHTSA2017-06-06
Manufacturer's numberSSM72178
Manufacturer's date2015-02-11
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

"ISSUE: THE MIL IS ILLUMINATED AND P2183-00 IS STORED IN THE PCM, BUT WITH NO DRIVEABILITY CONCERNS RAISED BY THE CUSTOMER. CAUSE: THE P2183-00 CODE IS SET WHEN THE PCM DETECTS A PROBLEM WITH THE TEMPERATURE READING FROM THE 'ENGINE COOLANT TEMPERATURE SENSOR 2 CIRCUIT'. IF THE LONG TERM AVERAGE VALUE IS STUCK (MOVEMENT OF SENSOR VALUE IS NOT AS EXPECTED DURING A MONITORED DRIVE CYCLE), THE CODE WILL SET."

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Cooling system

Trouble codes named

P2183

Vehicles listed
LAND ROVER LR42015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
LTB00671NAS62017-06-13. Service bulletin. SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP (MIL) MAY BE ILLUMINATED. UPON DIAGNOSIS, THE TECHNICIAN MAY FIND ONE OR MORE DIAGNOSTIC TROUBLE CODE (DTC), LISTED IN THE TABLE BELOW AND RELEVANT TO THE HEATED OXYGEN SENSORS (HO2S), MAY BE STORED IN THE ENGINE CONTROL MODULE (ECM).
SSM720082017-06-07. Service bulletin. "ISSUED MARCH 2015. ISSUE: LOW COOLANT MESSAGE DISPLAYED. A COOLANT LEAK IS FOUND FROM THE SEAM ON COOLANT PIPE (LR018275). SEE THE ATTACHED FILE FOR AN EXAMPLE OF THE LEAK LOCATION. CAUSE: A PROCESS ISSUE AT COMPONENT SUPPLIER."
LTB00352NAS62017-06-06. Service bulletin. "SITUATION: THE FLUID LEVEL IN THE ENGINE COOLANT SYSTEM EXPANSION TANK MAY FALL BELOW THE MINIMUM LEVEL OVER A PERIOD OF TIME OR A ‘LOW COOLANT LEVEL’ MESSAGE IS DISPLAYED IN THE MESSAGE CENTER. UPON INSPECTION, A LEAK MAY BE FOUND TO BE FROM THE FRONT OF THE ENGINE-DRIVEN COOLANT PUMP, TOGETHER WITH EXCESSIVE WEAR OF THE COOLANT PUMP BEARING."
SSM721592017-06-06. Service bulletin. "ISSUE: THE MIL IS ILLUMINATED AND P2183-00 IS STORED IN THE PCM, BUT WITH NO DRIVEABILITY CONCERNS RAISED BY THE CUSTOMER. CAUSE: THE P2183-00 CODE IS SET WHEN THE PCM DETECTS A PROBLEM WITH THE TEMPERATURE READING FROM 'ENGINE COOLANT TEMPERATURE SENSOR 2 CIRCUIT'. IF THE LONG TERM AVERAGE VALUE IS STUCK (MOVEMENT OF SENSOR VALUE IS NOT AS EXPECTED DURING A MONITORED DRIVE CYCLE), THE CODE WILL SET."
SSM720082017-06-06. Service bulletin. "ISSUE: LOW COOLANT MESSAGE DISPLAYED. A COOLANT LEAK IS FOUND FROM THE SEAM ON COOLANT PIPE (LR018275). SEE THE ATTACHED FILE FOR AN EXAMPLE OF THE LEAK LOCATION. CAUSE: A PROCESS ISSUE AT COMPONENT SUPPLIER."
SSM720082017-06-02. Service bulletin. "ISSUE: LOW COOLANT MESSAGE DISPLAYED. A COOLANT LEAK IS FOUND FROM THE SEAM ON COOLANT PIPE (LR018275). SEE THE ATTACHED FILE FOR AN EXAMPLE OF THE LEAK LOCATION. CAUSE: A PROCESS ISSUE AT COMPONENT SUPPLIER."
SSM730272017-04-11. Service bulletin. ISSUE: THE CUSTOMER MAY REPORT A NOISE FROM THE ENGINE BAY. THIS MAYBE ACCOMPANIED WITH THE COOLANT GAUGE READING HIGH AND/OR THE CHARGE WARNING INDICATOR ILLUMINATED. INVESTIGATION FINDS A CONCERN WITH THE PRIMARY IDLER PULLEY ASSEMBLY WHICH IN SOME CASES CAN LEAD TO DAMAGE OF THE PRIMARY DRIVE BELT. THE PRIMARY BELT DRIVES THE COOLANT PUMP AND GENERATOR HENCE THE POTENTIAL FOR THE COOLANT GAUGE TO READ HIGH AND/OR THE CHARGE WARNING INDICATOR ILLUMINATING IF THE BELT IS DAMAGED AND NOT FUNCTIONING CORRECTLY. THIS CONCERNS AFFECTS LTIS (LOW TIME IN SERVICE) VEHICLES WITH THE 3.0 AJ126 AND 5.0 AJ133 GASOLINE ENGINES FITTED.