IB18-N-003A

BULLETIN NUMBER:
IB18-N-003A
IMPORTANT SERVICE
INFORMATION FOR:
 SERVICE MANAGER
 SERVICE ADVISOR
 TECHNICIAN
 PARTS DEPARTMENT
 WARRANTY PERSONNEL
ISSUE DATE:
JULY 2020
GROUP:
ENGINE
KEYLESS ENTRY (RPO CODE I4K) TRANSMITTER PROGRAMMING
AFFECTED VEHICLES

2016-2020MY Isuzu N-Series Vehicles
Equipped with 5.2L Diesel Engines

2015-2018MY Isuzu N-Series Vehicles
Equipped with 3.0L Diesel Engines

2018-2020MY Isuzu FTR Vehicles
This bulletin supersedes service bulletin IB18-N-003. This bulletin is being revised to
update affected model years. Please discard previous bulletin IB18-N-003.
INFORMATION
Isuzu Commercial Truck of America, Inc. is distributing this procedure for adding keyless
entry transmitters as a quick reference to help dealers better service the customer. Also
included is the clearing procedure for customers who have had transmitters lost or stolen.
This procedure may be used to clear all transmitters from the Keyless Entry Control Unit.
SERVICE PROCEDURE
These procedures must be performed at the driver’s door and require the vehicle engine
control switch key.
If you are adding a transmitter, follow the procedure entitled “Adding Keyless Entry
Transmitter.” If you are replacing a lost or stolen transmitter, follow the procedure entitled
“Clearing Keyless Entry Transmitters.” When using the Clearing Keyless Entry
Transmitter procedure, be sure all new transmitters are present with the vehicle.
Before starting, confirm the following conditions:

The engine control switch is in the “off” position and the key is removed.

All cab doors are fully closed.

The driver side door manual lock button is in the “unlock” position.

The key is out of the door lock cylinder.

The transmitter button is not being pushed.
IMPORTANT: READ AND UNDERSTAND ENTIRE PROCEDURE BEFORE STARTING.
Programming is time sensitive.
Adding Keyless Entry Transmitters
NOTE: It is necessary to go through steps 1-10 for each transmitter being added.
1. Open the driver door. Do not close the driver door until
instructed.
2. Use the driver side door manual lock button and lock
and unlock the door one time.
Note: This step must be completed within 10 seconds
after step 1.
3. Insert key into engine control switch.
Note: This step must be completed within 10 seconds
after step 2.
4. Turn the engine control switch to the ON position and
then to the OFF position two times. Do not start the
vehicle.
Note: This step must be completed within 10 seconds
after step 3.
5. Remove key from engine control switch.
Note: This step must be completed within 10 seconds
after step 4.
6. Press and release the driver door ajar switch six (6)
times.
Note: This step must be completed within 30 seconds
after step 5.
Listen for confirmation.
You should hear the driver door automatically lock and
unlock two times, which means the vehicle is in keyless
registration mode. Once the vehicle is in this mode you
have only a 10 second window to register a transmitter
per steps 7 and 8.
7. On the transmitter, press and release both the lock
and the unlock buttons at the same time.
8. On the transmitter, press and release either lock or
unlock button.
Note: Steps 7 and 8 must be completed within 10
seconds after step 6.
Listen for confirmation.
You should hear the driver door automatically lock and
unlock two times.
9. Programming is complete. Close the driver door.
Remote Transmitter
Lock Button
Unlock Button
10. Check function of both the lock and unlock buttons on
the transmitter to confirm programming.
Clearing Keyless Entry Transmitters (Only perform if a remote is lost or stolen)
1. Open the driver door. Do not close the driver door until
instructed.
2. Use the driver side door manual lock button to lock and
unlock the door one time.
Note: This step must be completed within 10 seconds
after step 1.
3. Insert key into engine control switch.
Note: This step must be completed within 10 seconds
after step 2.
4. Turn the engine control switch to the ON position and
then to the OFF position six (6) times. Do not start the
vehicle.
Note: This step must be completed within 10 seconds
after step 3.
5. Remove key from engine control switch.
Note: This step must be completed within 10 seconds
after step 4.
6. Press and release the driver door ajar switch seven (7)
times.
Note: This step must be completed within 30 seconds
after step 5.
 The hazard lamps will flash five (5) times.
This indicates that the clearing of the keyless entry
transmitters is complete.
7. Close the driver door.
Remote Transmitter
8. All transmitters are successfully removed from the
Keyless Entry Control Unit. If the old transmitters are
available, verify that they do not work by pressing their
lock and unlock buttons (and confirming that nothing
happens).
 Go to Adding Keyless Entry Transmitter to program
new transmitters.
Lock Button
Unlock Button