2023 Isuzu F-Series

Service bulletins

Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.

• 11011555This information bulletin outlines the service procedures for diagnosis and parts information for repair of the mobileye 6 system. Figure 1 below IS an example of the camera used on a mobileye 6 system. The procedure discussed in this bulletin must be used for repairing any mobileye 6 system.
• 11011554This information bulletin outlines the procedures for using the mobileye exchange program. Replacement mobileye 8 components can be obtained for vehicles that qualify under this exchange program.
• 11005689Information warranty bulletin_ this bulletin describes certain additional requirements when submitting a regular warranty or parts warranty claim for fuel tank replacement (labor operation code l1281) on 2022-2025my isuzu f-series vehicles.
• 11005680The vehicles check engine malfunction indicator lamp (mil) may be illuminated as a result of the engine fan clutch being constantly engaged while the engine IS running, thereby setting a dtc 3243 in the engine control module (ecm). Follow the published diagnostic in the applicable workshop manual (wsm) dtc 3243. If no fault can be found during this normal diagnosis, follow the service procedure in this bulletin to correct the concern.
• 10249692INFORMATION 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 to note that 2018 to 2023 Isuzu F-Series vehicles must USE ONLY the original TES 295 fluid. See Table 1 below for the correct application of TES 295 and TES 668 transmission fluids. Refer to the applicable Workshop Manual for additional information.
• 10248374Customer 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 condition and repair them as necessary. This service will be provided free of charge.
• 10246227This 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 and beyond 30 days. Performing these required procedures at the specified intervals will properly maintain vehicles until they are retailed. Failure to follow the procedures outlined may result in repairs and additional costs that could have been avoided. We are providing dealers with this brief overview of the recommended procedures as a reminder to maintain older inventory. Failures resulting from improper, or lack of, storage procedures are not covered under the vehicle factory warranty.
• 10244947CUSTOMER 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 speedometer will show a vehicle speed higher than the actual vehicle speed while driving and the odometer will accumulate miles faster (approximately 14% faster) than the actual or True vehicle miles. Additionally, mileage data collected and stored in the Mimamori Unit (MMU) will be incorrect.
• 10244946CUSTOMER 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 affected vehicles. However, should Isuzu collect data from the MMU, this error will cause the accumulated mileage value shown in the captured data to be incorrect. As a result, the Isuzu Vehicle Health Report will incorrectly calculate mileage-based information such as the next recommended service date. Dealers will reprogram the MMU to correct the mileage accumulation. This service will be provided free of charge.
• 10244945The following information is provided to clearly explain Isuzus policy for control module (engine, transmission, antilock brake, instrument panel, body control, power interface, etc.) reprogramming. Control module calibrations are regularly updated for many reasons. These reasons may include, but are not limited to: model year change, software corrections, certification compliance, product improvement and specific application requirements. However, the mere existence of a newer control module calibration does not necessarily mean that warranty coverage exists or that the calibration must be installed. It is not our policy to update control modules, under warranty or after warranty, based solely on the availability of a newer calibration file. Below are our guidelines for reprogramming control modules.
• 10244941This 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 and beyond 30 days. Performing these required procedures at the specified intervals will properly maintain vehicles until they are retailed. Failure to follow the procedures outlined may result in repairs and additional costs that could have been avoided. We are providing dealers with this brief overview of the recommended procedures as a reminder to maintain older inventory. Failures resulting from improper, or lack of, storage procedures are not covered under the vehicle factory warranty.
• 10244939Isuzu 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.
• 10240367Isuzu 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 to the tire manufacturer's warranty booklet that was provided with the vehicle at the time of the sale.
• 10238686Product 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 performance and reliability. Prior to repairing any 2023MY-2024MY Isuzu F-Series, dealers are asked to call the Isuzu CV Technical Assistance Center (TAC) to provide detailed failure and diagnostic information and to confirm the proposed repair method. When the dealer closes the TAC case, any necessary claim authorization or submission direction will be provided.
• 10237146This bulletin outlines the procedures for using the Alpine Exchange Program (the "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 for radio and component repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio and component repairs not covered under warranty.
• 10233455This bulletin describes certain additional requirements when submitting a warranty claim for radiator leaks (Labor Operation Codes J3080, J3100, and J1840) on 2022MY - current Isuzu F-Series vehicles.
• 10225521We have received reports of the front turn signal lenses cracking on Isuzu vehicles. These lenses are cracking from the effects of being washed with alkaline detergents. Alkaline detergents are typically used in industrial settings and are reactive with the paint, metals, and other materials used to make up the exterior components of Isuzu vehicles. Isuzu recommends that only neutral detergents be used when washing Isuzu vehicles. However, if alkaline detergents are used to wash an Isuzu vehicle, it is crucial that all traces of the detergent are rinsed away with water or wiped off as necessary. Allowing alkaline detergent to dry on the turn signal lenses will cause them to crack. Each Isuzu vehicle is originally equipped with an Owner's Manual that includes guidelines for the proper exterior maintenance of the vehicle. The following guidelines are typical of those found in an Isuzu Owner's Manual concerning the use of detergents on a vehicle's exterior.
• 10218929The information below is provided to help technicians properly service the 2022MY Isuzu F-Series vehicles equipped with the 6.7L Cummins diesel engine. This bulletin also outlines the diagnostic scan tool connection requirements to facilitate technicians' use of the tool on the Affected Vehicles.

Every Isuzu F-Series model year

Bars are owner complaints, dots mark years with recalls. Select a year to open its report.