# Service bulletin LTB00671NAS6

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.

- Type: Service bulletin
- NHTSA id: 10106271
- Published by NHTSA: 2017\-06\-13
- Manufacturer's number: LTB00671NAS6
- Manufacturer's date: 2016\-06\-27
- NHTSA component: ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE

## NHTSA's summary

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 \(ECM\).

## 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

## Vehicles listed

- 2014 to 2016 LAND ROVER LR4
- 2013 to 2015 LAND ROVER RANGE ROVER
- 2014 to 2015 LAND ROVER RANGE ROVER SPORT

## Other bulletins for the same vehicles and component

- [LTB00520NAS1](/bulletins/10214062.md), 2022-06-13, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. Technical Bulletin: Engine Starts with difficulty when hot
- [SSM64677](/bulletins/10206491.md), 2022-01-18, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING:COOLING SYSTEM:PUMP. Cooling System Concerns.
- [Q342NAS2](/bulletins/10204907.md), 2021-12-13, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Technical Bulletin: Main Cooling Radiator Leak
- [LTB01003NAS3](/bulletins/10149084.md), 2018-11-26, Service bulletin: ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Coolant may be evident leaking from one or both of the auxiliary radiators behind the front bumper.
- [SSM73678](/bulletins/10138752.md), 2018-05-29, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Issue: Unexpected noise from Head\-Up Display \(HUD\)
- [LTB01003NAS2](/bulletins/10116163.md), 2017-08-25, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY. Coolant may be leaking from one or both of the auxiliary radiators
- [LTB00754NAS1](/bulletins/10105444.md), 2017-06-07, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. "SITUATION: THE ENGINE MALFUNCTION INDICATOR LAMP \(MIL\) MAY BE ILLUMINATED AND DIAGNOSTIC TROUBLE CODE \(DTC\) P007B\-00 STORED IN THE ENGINE CONTROL MODULE \(ECM\) WITH NO OTHER VEHICLE SYMPTOMS PRESENT. CAUSE: THIS MAY BE CAUSED BY A CHARGE AIR COOLANT PUMP COMPATIBILITY ISSUE."
- [SSM72008](/bulletins/10105341.md), 2017-06-07, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. "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."
- [Q496NAS1](/bulletins/10105021.md), 2017-06-07, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. "SITUATION: AN ISSUE HAS BEEN IDENTIFIED ON A LIMITED NUMBER OF 2015 MODEL YEAR RANGE ROVER SPORT \(L494\) AND RANGE ROVER \(L405\) VEHICLES WHERE A 'LOW COOLANT' WARNING IS ILLUMINATED ON THE INSTRUMENT CLUSTER DUE TO COOLANT LEAKING THROUGH THE LOWER PART OF THE COOLANT EXPANSION TANK. ACTION: RETAILERS ARE REQUIRED TO HOLD ONLY AFFECTED NEW VEHICLES THAT ARE WITHIN YOUR CONTROL AND REFRAIN FROM RELEASING THE VEHICLES FOR NEW VEHICLE SALE PENDING COMPLETION OF THE SERVICE INSTRUCTION DETAILED IN THIS TECHNICAL BULLETIN."
- [LTB00352NAS6](/bulletins/10104441.md), 2017-06-06, Service bulletin: ENGINE AND ENGINE COOLING:COOLING SYSTEM. "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."

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