Loading...

NHTSA ID Number: 10152020

Manufacturer Communication Number: LTB01238NAS1

TSB/Document Date: 2018-12-17


Summary

A 'Smart key not found' message may be displayed on the Instrument Cluster and poor Smart key operation may be evident.


11/27/2018

LTB01238NAS1 - 'Smart key not found' Message Displayed and Poor Smart key Operation | TOPIx

LT B 0 1 2 3 8 N A S 1

TECHNICAL BULLETIN
02 NOV 2018

© JaguareBay logo Land RovereBay logo North America, LLC
NOTE: The information in Technical Bulletins is intended for use by trained, professional Technicians
with the knowledge, tools, and equipment required to do the job properly and safely. It informs these
Technicians of conditions that may occur on some vehicles, or provides information that could assist in
proper vehicle service. The procedures should not be performed by 'do-it-yourselfers'. If you are not a
Retailer, do not assume that a condition described affects your vehicle. Contact an authorized Land
Rover service facility to determine whether this bulletin applies to a specific vehicle.

I N F O R M AT I O N

SECTION:
419-00

S U B J E C T/ C O N C E R N :
'Smart key not found' Message Displayed and Poor Smart key Operation

AFFECTED VEHICLE RANGE:
MODEL:

MODEL YEAR:

VIN:

Discovery (LR)

2018

047448-079570

Range Rover Sport (LW)

2018

181320-813922

Range Rover (LG)

2018

380217-516166

https://topix.landrover.jlrext.com/topix/content/document/view?id=939080

1/13

11/27/2018

LTB01238NAS1 - 'Smart key not found' Message Displayed and Poor Smart key Operation | TOPIx

MARKETS:
NORTH AMERICA

CONDITION SUMMARY:

SITUATION:
A 'Smart key not found' message may be displayed on the Instrument Cluster and poor Smart key
operation may be evident.
CAUSE:
This may be caused by a wiring harness issue or faulty Radio Frequency (RF) antenna.
ACTION:
Should a customer express this concern, follow the Diagnostic Procedure and Workshop Procedure
below.

PA RTS :
PART NUMBER

DESCRIPTION

QUANTITY

Discovery
LR112609

RF Antenna with Coaxial Cable

1

BNP3996

Adhesive Pad(s)

12

LR091317

Headliner trim clip

1

LR034879

B-pillar trim clip(s)

4

LR036129

C/D-pillar trim clip(s)

16

LR090727

C/D-pillar trim clip(s)

6

LR082272

C/D-pillar trim clip(s)

4

LR112609

RF Antenna with Coaxial Cable

1

BNP3996

Adhesive Pad(s)

12

Range Rover Sport

https://topix.landrover.jlrext.com/topix/content/document/view?id=939080

2/13

11/27/2018

LTB01238NAS1 - 'Smart key not found' Message Displayed and Poor Smart key Operation | TOPIx

PART NUMBER

DESCRIPTION

QUANTITY

LR043263

Headliner trim clip

1

LR034879

B-pillar trim clip(s)

4

LR006101

C-pillar trim clip(s)

4

LR036129

C-pillar trim clip(s)

4

LR034879

C-pillar trim clip(s)

4

LR038293

D-pillar trim clip(s)

8

LR112609

Radio Frequency (RF) Antenna with Coaxial Cable

1

BNP3996

Adhesive Pad(s)

16

LR043334

Headliner trim clip

1

Range Rover

TOOLS:


JaguareBay logo Land
Rover-approved
Midtronics battery
power supply

JaguareBay logo Land
Rover-approved
diagnostic
equipment with
latest
PATHFINDER
software

WARRANT Y:

NOTES:
Repair procedures are under constant review, and therefore times are subject to change;
those quoted here must be taken as guidance only. Always refer to JLR claims submission
system to obtain the latest repair time.

https://topix.landrover.jlrext.com/topix/content/document/view?id=939080

3/13

11/27/2018

LTB01238NAS1 - 'Smart key not found' Message Displayed and Poor Smart key Operation | TOPIx

The JLR Claims Submission System requires the use of causal part numbers. Labor only claims
must show the causal part number with a quantity of zero.
DESCRIPTION

SRO

TIME (HOURS)

CONDITION CODE

CAUSAL PART

RFA coaxial cable -- Range Rover

86.54.39

2.00

07

LR112609

RFA coaxial cable -- Range Rover Sport

86.54.39

1.8

07

LR112609

RFA coaxial cable -- Discovery

86.54.39

2.1

07

LR112609

NOTE:
Normal Warranty procedures apply.

DIAGNOSTIC PROCEDURE:

CAUTIONS:
A JaguareBay logo Land RovereBay logo-approved Midtronics battery power supply must be connected to the
vehicle startup battery.
All ignition ON/OFF requests MUST be performed; failure to do these steps may cause
damage to vehicle control modules.
1

Connect the JaguareBay logo Land RovereBay logo-approved Midtronics battery power supply to the vehicle
startup battery.

2

NOTE:
The JaguareBay logo Land RovereBay logo-approved diagnostic equipment must be loaded with
PATHFINDER version 197 (or later).
Connect the JaguareBay logo Land RovereBay logo-approved diagnostic equipment to the vehicle and begin a
new session.

12

SaleBestseller No. 1
Autel Scanner MaxiCOM MK900BT, 2026 MK900-BT V2.0 Bidirectional Diagnostic Tool, 8in Up of MK900 MX900 MK808S MK808BT MX808S MK808Z, 3000+ Active Tests, 40+ Service, CAN-FD&DOIP, All System, FCA 11 OS
  • 💯【Conta.ct us for Support Directly】If you met any...
  • 🔥🔥🔥【2026 AUTEL FLAGSHIP MK900BT MK900-BT, NEW...
  • 🚗【3000+ ACTIVE TESTS (50➡3000+), SAME AS MS...
  • 🚗【40+ HOT SERVICES FOR 150 MAKES (28+➡40+)】Full...
  • 🚗【OE ALL SYSTEM DIAGNOSE, AUTO SCAN 2.0: SCAN LICENSE...
SaleBestseller No. 2
Autel Professional OBD2 Scanner AL319 Code Reader, Enhanced Check and Reset Engine Fault Code, Live Data, Freeze Frame, CAN Car Diagnostic Scan Tools for All OBDII Vehicles After 1996, 2026 Upgraded
  • 【TURN OFF CEL】 This AL319 car scanner diagnostic tool...
  • 【EXTENSIVE APPLICATION】 Autel AL319 Compatible with...
  • 【FOR END USER & DIYERS】 This error code reader AL319 is...
  • 【USER-FRIENDLY DESIGN】 This OBD2 scanner and check...
  • 【HIGH-QUALITY SERVICES】 12 months war.ranty from the...

Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API


 

If the PDF is very large, it may not load in the preview below.

Download PDF [388.79 KB]


Some older TSBs had multiple PDFs — visit the NHTSA Website to view all PDFs.

If the TSB PDF does not show, download or view it on the NHTSA Website.

Click on the (+) Plus Sign

Then Click on Associated Document(s)


Search NHTSA Database for Recalls

View Latest Recalls


Search NHTSA Database for Vehicle Investigations

View Latest Vehicle Investigations


Search NHTSA Database for Vehicle Complaints

View Latest Vehicle Complaints


TSB/Document ID: LTB01238NAS1

Replacement Service Bulletin Number:

MFR Communication Date: 2018-11-02

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

MFR Component Subsystem:


Previous TSB

Next TSB



SaleBestseller No. 1
TOPDON Bidirectional Scan Tool, 2026 New ArtiDiag900 Lite Automotive Diagnostic Tool for Full System, Scanner for Car with Active Test, 8 Reset, Wireless OBD2 Scanner Diagnostic Tool for All Vehicles
  • [2026 Top-Tier Hardware and Software Upgrade]: Topdon ArtiDiag900 Lite scanner has enhanced hardware and latest features, including Android 11.0, 5x faster CPU, 10000mAh battery for 12 hours of continuous operation, stable wireless diagnosis with Bluetooth 5.0, 8-inch touchscreen. Added bi-directional control, wireless diagnosis, battery testing (optional), and DTC repair guide
  • [TOPDON Bidirectional Scan Tool]: This bidirectional obd2 scanner sends commands to the vehicle's ECU for active testing, enabling users to accurately and quickly locate faulty components such as injectors, coolant pumps, windows, wipers, headlights, mirrors, etc. The bidirectional control scanner is the ideal choice for workshops/automotive repair shops as it significantly reduces mechanic's diagnostic time.
  • [Wireless Bluetooth Diagnostic Experience]: The AD900 Lite scan tool comes with a Bluetooth 5.0 VCI, supporting a wireless diagnostic range of up to 33 feet (10 meters), allowing you to diagnose without being confined to cables or tight spaces. Stable and fast wireless diagnosis provides a comfortable repair environment. It also offers VCI cables to increase connectivity options.
  • [DTC Repair Guide Function]: Easily diagnose issues with your vehicle and receive guidance on repairs with the topdon scan tool's fault code definitions for all systems,maximize your diagnostic capabilities. This function is compatible with ChryslereBay logo/DodgeeBay logo/JeepeBay logo/FiateBay logo 2010-2014 and expanding with continual updates,the AritDiag 900 Lite car diagnostic scanner is the must-have tool for any technician or DIY enthusiast.
  • [OE-Level Full System Diagnostics]:AritDiag900 Lite full system diagnostic scanner can scan ALL available modules(Engine, Transmission, Airbag, ABS, ESP, TPMS, Gateway, Steering, Radio, Air conditioning, ect.) to✔read ECU info, ✔read/clear codes, ✔view live data stream, ✔retrieves freeze-frame, ✔perform active tests, and more. With just a simple click, it provides you with accurate and in-depth diagnostics.
SaleBestseller No. 2
TOPDON TopScan Lite OBD2 Bluetooth Scanner, Bi-Directional All System Diagnostic Tool with AI Assistant, 8 Resets, Repair Guides, Performance Test, FCA AutoAuth & CAN-FD for iOS Android
  • Bi-Directional Control, Quickly Locate Problems: Turn your phone into a professional diagnostic tool. You can send commands from your phone to the ECU to test injectors, cooling fans, headlights, A/C clutch, windows, wipers, and more. See which one doesn't respond. Helps you quickly locate the problem and save time. No need to tear things apart, avoid blind disassembly.
  • Flexible Subscription, Choose Advanced Features as Needed: TopScan Lite provides free-for-life access to core diagnostics, including full system scan, code reading, performance tests, and repair information. After purchase, advanced features (bi-directional control, service operations, live data, code clearing, and AI functions) are free-for-the-first-year. After the first year, if you want to use advanced features, you need to subscribe on a monthly, quarterly, or yearly basis. As new models and reset functions are updated, the tool will also be continuously upgraded.
  • Full System Diagnostics, No Fault Hides: Unlike basic diagnostic tools that only cover 4 systems, TopScan can scan all systems. Read and clear trouble codes, view live data streams, and generate a complete vehicle health report – all issues are clear at a glance. Covers 10,000+ vehicle models and is compatible with 99.99% of vehicles.
  • AI Assistant - TopFix: Think of TopFix as your personal AI mechanic. It leverages a repair database and OEM data to deliver clear, step-by-step repair solutions. Features include AI Q&A, one-click translation, and a full repair log, making your diagnostic process simpler and more efficient.
  • 8+ Hot Resets, Keep Your Car in Top Shape: One-tap resets for oil, throttle, EPB, steering angle, DPF, ABS, BMS, and airbag. It enables car owners to easily perform essential maintenance, ensuring the vehicle stays in optimal condition and extends its service life.
SaleBestseller No. 3
TOPDON ONE Bidirectional Scan Tool, 10.1" OBD2 Scanner with J2534 Pass-Thru and ECU Coding, Over 50 Resets, Topology Mapping Car Diagnostic Tool for All Vehicles
  • Dual WiFi & 10.1" Touchscreen: Provides a stable, high-speed wireless link 3x faster than bluetooth, and a responsive, professional interface. Topdon ONE obd2 scanner diagnostic tool ensures smooth, non-lagging diagnostic scan, boosting mechanic efficiency
  • J2534 Pass-Thru Support: The included ONE VCI supports the J2534 standard, allowing it to function as a pass-thru device when paired with OEM diagnostic software.Through TOPDON’s RLink platform, technicians can perform dealer-level coding, expanding in-house capabilities without investing in multiple factory automotive scan tools
  • OE Topology Mapping: Visualize the vehicle’s ECU network exactly as it’s built.Zoom, pan, and highlight specific modules to pinpoint component issues with precision.Topology mapping displays real-time communication between modules
  • 50 Plus Service Functions: Covers high-demand services like ADAS calibration, DPF regen, TPMS reset, ABS bleed, and throttle adaptation.Expands your service menu, allows you to charge premium rates, and turns away zero jobs due to lack of tooling. Vehicle-specific functionality may vary
  • Advaned ECU Coding: 10 of the most serviced brands in North America, including full ECU coding and flash hidden support for BMWeBay logo, VWeBay logo, Au-di, Benz, PorscheeBay logo, ToyotaeBay logo, Ni ssan and more. Enables module replacement, feature customization, and personal settings with automatic backup or restore.Lets your shop safely offer high-margin customization services, attracting more customers and boosting profit

Last update on 2026-06-12 / Affiliate links / Images from Amazon Product Advertising API


 

This product presentation was made with AAWP plugin.

Share to...