Technical Service Bulletins
Search 172,063 manufacturer communications covering 879 vehicle makes from 1955 to 2025.
Showing 726 bulletins for ISUZU
SB24-L-001
Jan 29, 2024
060000 ENGINE AND ENGINE COOLING
SERVICE BULLETIN: Some customers may experience an illuminated Malfunction Indicator Light (MIL) with DTC P20EE Diesel Exhaust Fluid (DEF) System NOx Trap Low Efficiency set without an apparent cause. New calibrations for the DEF Control U
IB24-K-001B
Jan 29, 2024
100000 POWER TRAIN
INFORMATION BULLETIN: Allison recently announced a new transmission fluid: TES 668. While Allison asserts this fluid is interchangeable with TES 295 for its transmissions, it is NOT interchangeable for all Isuzu vehicles. It is important t
IB13-R-001I
Dec 19, 2023
110000 ELECTRICAL SYSTEM
THIS INFORMATIONAL BULLETIN OUTLINES THE PROCEDURES FOR USING THE ALPINE EXCHANGE PROGRAM. THE EXCHANGE PROGRAM MUST BE USED WHEN ANY ALPINE RADIO OR OTHER COMPONENT COVERED BY THIS BULLETIN IS REPAIRED UNDER WARRANTY AND MAY ALSO BE USED F
CB23-J-004
Dec 18, 2023
060000 ENGINE AND ENGINE COOLING
CUSTOMER SATISFACTION CAMPAIGN: IN SOME 2022-2023MY ISUZU F-SERIES TRUCKS, THE REAR ENGINE MOTOR MOUNTS MAY BECOME LOOSE, CAUSING A NOTICEABLE VIBRATION WHILE DRIVING. ISUZU DEALERS WILL INSPECT THE REAR ENGINE MOTOR MOUNTS FOR THIS CONDIT
IB17-X-001E
Nov 30, 2023
353000 EQUIPMENT:ELECTRICAL
THE INFORMATION PROVIDED TO HELP TECHNICIANS BETTER UNDERSTAND COMMON CUSTOMER QUESTIONS OR VEHICLE OPERATIONS THAT MAY BE INCORRECTLY PERCEIVED AS A PROBLEM. ADDITIONALLY, DIAGNOSTIC SCAN TOOL CONNECTION REQUIREMENTS ARE OUTLINED FOR EASIE
WB18-X-001D
Nov 29, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
THIS BULLETIN PROVIDES SHIPPING PREPARATION AND ADMINISTRATION INSTRUCTIONS WITH REGARD TO PARTS RETURN REQUESTS FROM THE ISUZU TECHNICAL ASSISTANCE LINE (TAL). THE TAL PARTS RETURN REQUEST SYSTEM IS USED BY ISUZU COMMERCIAL TRUCK OF AMERI
WB23-X-001A
Nov 15, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
THIS BULLETIN PROVIDES INFORMATION WITH REGARDS TO THE ISUZU COMMERCIAL VEHICLE (CV) SERVICE POLICIES AND PROCEDURES MANUAL (SPPM). THE ISUZU CV SPPM (SECTIONS 2.15 AND 2.16) PROVIDES DETAILED PROCEDURES RELATED TO VEHICLE STORAGE UP TO AN
CB23-L-001
Nov 3, 2023
081100 FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
IN SOME 2021MY ISUZU F-SERIES VEHICLES, OPERATORS MAY EXPERIENCE AN ILLUMINATED CHECK ENGINE MALFUNCTION INDICATOR LAMP (MIL) WITH DIAGNOSTIC TROUBLE CODE (DTC) P2201 NOX SENSOR CIRCUIT PERFORMANCE SENSOR 1 AND/OR DTC P20EE DIESEL EXHAUST F
CB23-J-003
Oct 27, 2023
060000 ENGINE AND ENGINE COOLING
CUSTOMER SATISFACTION CAMPAIGN: In some 2022-2023 MY Isuzu F-Series trucks equipped with RPO 5U5 Tire Size 255/70R22.5, a calibration error caused the affected vehicles to be built with an incorrect tire size value. As a result, the speedom
CB23-N-003
Oct 27, 2023
110000 ELECTRICAL SYSTEM
CUSTOMER SATISFACTION CAMPAIGN: In certain 2023 model year Isuzu F-Series trucks the Mimamori Control module (MMU) was not programmed with the correct tire size value. This error does not affect the drivability or performance of the affecte
IB23-X-002
Oct 13, 2023
030000 BRAKES (PWS)
With the introduction of standard EVSC (Electronic Vehicle Stability Control) System, which includes ASR (Anti-Slip Regulation a?? i.e., TCS (Traction Control System)) and ESC (Electronic Stability Control) and optional ADAS (Advanced Drive
CB23-J-002
Oct 13, 2023
060000 ENGINE AND ENGINE COOLING
SPECIAL POLICY ADJUSTMENT: In some 2018-2021MY Isuzu F-series vehicles equipped with 5.2L (4HK1) diesel engines, the diesel particulate filter (DPF) fuel injector may fail, setting Diagnostic Trouble Code (DTC) P0420 in the Engine Control M
WB23-X-001
Oct 11, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
This bulletin provides information with regards to the Isuzu Commercial Vehicle (CV) Service Policies and Procedures Manual (SPPM). The Isuzu CV SPPM (sections 2.15 and 2.16) provides detailed procedures related to vehicle storage up to an
IB23-J-001B
Oct 4, 2023
060000 ENGINE AND ENGINE COOLING
In the past, replacement 6.0L gasoline and RPO KL8/LC8 Alternative Fuel Capable engines came as a certain configuration. These engines are now provided as different long block assembly configurations. The new configurations do not include m
IB18-N-003C
Oct 3, 2023
060000 ENGINE AND ENGINE COOLING
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 ha
A WB08-X-001J
Sep 27, 2023
350000 EQUIPMENT
Policies and procedures update for all commercial vehicles. This bulletin provides instructions with regard to the Isuzu Commercial Vehicle (CV) Warranty Parts Center on the topics of parts retention, parts preparation for shipping, and adm
SB23-J-002
Sep 5, 2023
060000 ENGINE AND ENGINE COOLING
GASOLINE ENGINE 6.0L. The vehiclea??s Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTCs SPN 4240 FMI 10 (O2 Sensor Slow Response Bank 1 Sensor 1) and/or SPN 4241 FMI 10 (O2 Sensor Slow Response Bank 2 Sensor 1) set in
SB23-J-001A
Aug 31, 2023
060000 ENGINE AND ENGINE COOLING
The vacuum pump service part for affected vehicles listed in this bulletin has been superseded and is now the same vacuum pump that is the service part for the 6.6L gas engine. The updated pump requires the outlet vacuum hose be rerouted fo
SB23-L-002
Aug 16, 2023
080000 FUEL SYSTEM, DIESEL
Supercedes SB23-L-001: The vehiclea??s Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTC P2201 and/or P20EE set in the DEF Control Unit (DCU). If one or both of the preceding DTCs are present, first follow the diagnostic
WB13-X-002G
Jul 26, 2023
190000 TIRES
Isuzu is providing this bulletin to outline Isuzu's policy and procedures for Isuzu vehicles with Tire Warranty Coverage. NOTE: After the Isuzu Tire Warranty expires, additional coverage may be available from the tire manufacturer. Refer t
IB23-J-002
Jun 30, 2023
060000 ENGINE AND ENGINE COOLING
Some technicians, while diagnosing a Check Engine Malfunction Indicator Light (MIL) illumination or other customer complaint, have reported finding DTCs U2100 and/or U2105 listed as "History" codes. If these codes are "History" codes, they
SB23-L-001
Jun 29, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
The vehicle's Check Engine Malfunction Indicator Lamp (MIL) may illuminate with DTC P2201 set in the DEF Control Unit (DCU). If the preceding DTC is present, first follow the diagnostic for the DTC in question. If no mechanical fault can
IB23-J-001A
Jun 7, 2023
060000 ENGINE AND ENGINE COOLING
In the past, replacement 6.0L gasoline and RPO KL8 Alternative Fuel Capable engines came as a complete assembly. These engines are now provided as long block assemblies. The new configurations do not include many of the components that were
IB22-X-001B
Jun 7, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
Product teams continually seek valuable information for product quality and engineering improvements. For the 2023-2024 model years F-Series, Isuzu Commercial Truck of America, Inc. (Isuzu) will be strictly monitoring complete vehicle perfo
IB18-X-001F
Jun 6, 2023
355200 EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
IDA is a diagnostic program that provides: 1. DTC Analysis 2. DPF Early Regeneration Warning Detailed instructions on how to use the IDA are included in this bulletin.