NHTSA ID Number: 11028717
Manufacturer Communication Number: L-SB-0004-26
TSB/Document Date: 2026-02-11
Summary
Some 2018 – 2025 model year Lexus
vehicles equipped with the Enform™ 2.0 Navigation System, require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and system software.
L-SB-0004-26
January 23, 2026
Enform 2.0 Dynamic Navigation Map Update Process
Service
Category
Audio/Visual/Telematics
Section
Navigation/Multi Info Display
Market USA
Applicability
YEAR(S)
MODEL(S)
2019 - 2022
ES300H, ES350, UX200,
UX250H
2022 - 2023
GX460
2021 - 2025
IS300, IS350
2022 - 2025
IS500
2018 - 2023
LC500, LC500H
2021 - 2023
LC500C
2018 - 2022
LS500, LS500H
2018 - 2021
NX300, NX300H
2018 - 2025
RC F, RC300, RC350
2020 - 2022
RX350, RX450H
ADDITIONAL INFORMATION
SUPERSESSION NOTICE
The information contained in this bulletin supersedes Service Bulletin No. L-SB-0057-22.
Applicability has been updated to include 2022 – 2025 model year Lexus IS 500 and 2025 RC F,
RC 300, and RC 350 vehicles.
The Required Tools & Equipment section has been updated.
Service Bulletin No. L-SB-0057-22 is obsolete, and any printed versions should be discarded.
© 2026 Lexus, a division of Toyota Motor Sales, USA
Page 1 of 16
L-SB-0004-26
January 23, 2026
Page 2 of 16
Enform 2.0 Dynamic Navigation Map Update Process
Introduction
Some 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation System,
require a Special Service Tool (SST) USB flash drive to update the map, points of interest, and
system software. The SST is used with applicable vehicles to deliver the update, however, the
process for generating license keys differs from previous generations.
Before attempting to perform a map update, the expiration date of the dynamic subscription (stored
in the head unit), must be checked. If the expiration date has not passed, a license key may be
generated without the purchase of an activation card number (ACN). Updating the map without the
use of an ACN is considered an Embedded Navigation Update (refer to pg. 11) and performing this
update does not extend the subscription to dynamic map services. If the subscription period has
expired, or is expiring within the next 90 days, it should be recommended to the customer to
purchase an ACN. Utilizing an ACN will initiate the Dynamic Navigation Update (refer to pg. 4).
This Dynamic Navigation Update will perform the embedded navigation update and provide
dynamic map services for a period of two years from the date that the Dynamic Navigation Update
is performed.
ACNs are provided in a pamphlet available through the normal parts ordering system. Follow the
process in this bulletin to perform the update.
NOTE
Map data is released once each year through the shipment of an SST USB flash drive to each dealer.
The SST MUST be stored in the SST cabinet to ensure it can be easily found.
© 2026 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-26
January 23, 2026
Page 3 of 16
Enform 2.0 Dynamic Navigation Map Update Process
Introduction (continued)
Check the head unit
expiration date.
Is the
expiration date
visible?
17CY+
vehicle
view on SLP –
Telematics
tab
NO
YES
Is the expiration
date valid for more
than 90 days?
YES
The customer
wants the
embedded map
update WITHOUT
extending dynamic
map services.
Is the
expiration date
expired?
NO
YES
Customer
Judgement
NO
The customer wants
the embedded map
update AND to extend
dynamic services.
Dynamic (Telematics)
Navigation
Expiration Date
Will NOT Be Extended
ACN NOT Required
ACN REQUIRED
Perform Embedded
Navigation Update.
Perform Dynamic
Navigation Update.
Go to page 11
11.
Continue to Page 44.
Dynamic (Telematic)
Navigation expiration date
will be extended AND
embedded map data will
also be updated.
Warranty Information
OP CODE
DESCRIPTION
TIME
OFP
T1
T2
N/A
Not Applicable to Warranty
–
–
–
–
© 2026 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-26
January 23, 2026
Page 4 of 16
Enform 2.0 Dynamic Navigation Map Update Process
Parts Information
PART NUMBER
PART NAME
QTY
86271-HDD09-00
NAV ACN Card V.20.00
1
Required Tools & Equipment
SPECIAL SERVICE TOOLS (SST)
PART NUMBER
QTY
USB Drive Navigation Update – AWTEC*
TLAW-SD017-25F
1
*Essential SST.
NOTE
Additional SSTs may be ordered by calling 1-800-368-6787 or by visiting
Home – Service Resources – Lexus Tools and Equipment Program.
Dynamic Navigation Update
1. Search TIS for ANY available firmware updates for the selected model and model year.
Complete the firmware update(s) BEFORE installing the map data.
2. Cycle the ignition ON (Engine/Hybrid/EV system OFF).
NOTE
Vehicles WITHOUT Smart Key system:
Turn the ignition key to the ON position.
Vehicles WITH Smart Key system:
Press the Engine Start/Stop button two times with the brake pedal released.
3. Select the MAP button on the touch pad.
Figure 1.
© 2026 Lexus, a division of Toyota Motor Sales, USA
L-SB-0004-26
January 23, 2026
Enform 2.0 Dynamic Navigation Map Update Process
Dynamic Navigation Update (continued)
4. Select the Map Options icon on the
navigation screen.
Figure 2.
5. Select Map Data on the
Map Options menu.
Figure 3.
6. Record the old map date (YYYY-MM-DD)
and expiration date from the
navigation screen.
Figure 4.
7. Is the expiration date displayed as shown?
Figure 5.
YES — Record the expiration date
from the navigation screen
and go to step 10.
NO — Continue to step 8.
© 2026 Lexus, a division of Toyota Motor Sales, USA
Page 5 of 16
L-SB-0004-26
January 23, 2026
Enform 2.0 Dynamic Navigation Map Update Process
Dynamic Navigation Update (continued)
8. Login to TIS, go to Service Lane –
Vehicle One-View, input the VIN, and
select Lookup.
Figure 6.
9. Click the Telematics tab and record the
subscriber’s expiration date.
Figure 7.
10. Select Legal Info.
Figure 8.
11. Record the map update ID.
Figure 9.
© 2026 Lexus, a division of Toyota Motor Sales, USA
Page 6 of 16
L-SB-0004-26
January 23, 2026
Enform 2.0 Dynamic Navigation Map Update Process
Dynamic Navigation Update (continued)
12. Log into TIS.
13. Log into the Navigation Update Wizard.
A. Select the TIS tab.
Figure 10.
B. Select the Diagnostics tab.
C. Select the Navigation tab.
D. Re-enter your password.
E. Select Login.
14. Select AWTEC from the Select Navigation
Manufacturer dropdown menu.
Figure 11.
15. Enter the VIN and head unit
expiration date, then select Submit.
NOTE
It is recommended to perform a
Dynamic Navigation Update under the
following conditions:
The expiration date is expired.
The expiration date will expire in 90 days
or less.
The customer would like to continue the
dynamic navigation system for a period
of two years from the date of the update.
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TSB/Document ID: L-SB-0004-26
Replacement Service Bulletin Number:
MFR Communication Date: 2026-01-23
MFR Internal Campaign ID/Software Version: L-SB-0004-26
Communication Type: Service Bulletin/Repair Instructions
NHTSA Components: ELECTRICAL SYSTEM
MFR Component System:
MFR Component Subsystem:
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