Service bulletin IB19R001

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
Type	Service bulletin
NHTSA id	10162995
Published by NHTSA	2019-07-22
Manufacturer's number	IB19R001
Manufacturer's date	2019-06-26
NHTSA component	ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING

NHTSA's summary

ISUZU PROVIDES OPTIONAL ENGINE BLOCK HEATERS AND OIL PAN HEATERS WHICH ARE DESIGNED TO WARM THE ENGINE COOLANT AND ENGINE OIL ENOUGH DURING EXTREME COLD TEMPERATURES TO ALLOW EASY STARTING. OIL GETS THICKER (MORE VISCOUS) AS IT GETS COLDER, WHICH SLOWS DOWN THE ENGINE CRANKING SPEED. TO ENSURE THAT THE ENGINE CAN TURN OVER FAST ENOUGH TO START WHEN PREVAILING TEMPERATURES DROP, USE THE RECOMMENDED VISCOSITY ENGINE OIL AS SET FORTH IN THE VEHICLE'S OWNER'S MANUAL.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system, Engine

Vehicles listed
ISUZU F SERIES
ISUZU H-SERIES	2005, 2006, 2007
ISUZU N SERIES

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
WB11-X-001A	2023-11-06. Service bulletin. The following information is provided to clearly explain Isuzu’s 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.
IB09-X-004C	2022-08-02. Service bulletin. The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.
IB19X004	2019-07-22. Service bulletin. CALIFORNIA LAW REQUIRES THAT A PROFF OF CORRECTION CERTIFICATE ("POC CERTIFICATE") BE COMPLETED FOR EVERY MOTOR VEHICLE EMISSIONS CAMPAIGN/RECALL (IF ANY) THAT IS APPLICABLE TO A MOTOR VEHICLE IN ORDER FOR THAT VEHICLE TO BE REGISTERED IN THE STATE OF CALIFORNIA. CALIFORNIA REQUIRES THE POC CERTIFICATE TO BE PINK IN COLOR AND TO BE SUMBITTED IN PERSON AT A CALIFORNIA DEPARTMENT OF MOTOR VEHICLES ("DMV"). THE CALIFORNIA DMV WILL NOT ACCEPT POC CERTIFICATES THAT ARE SENT BY MAIL, EMAIL OR OTHER FORM OF ELECTRONIC TRANSMISSION.
PIP5540B	2019-03-18. Service bulletin. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
PIP4925B	2019-03-18. Service bulletin. This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.
PIP5540D	2019-03-11. Service bulletin. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
PIP5628	2019-03-11. Service bulletin. This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
PIT5399A	2018-06-18. Service bulletin. This Preliminary Information communication provides information to the technician about connectivity concerns when connecting an Apple device via USB cord. Technician should insure the customer is using an original equipment manufacturer Apple USB cable.
00-06-01-012G	2018-05-21. Service bulletin. This informational bulletin advises the possible issues that may occur using a scotch brite pad or highly abrasive disk on engine surfaces.
PIT5264A	2018-05-07. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that are travelling from Canada to the United States. While in the United States they are unable to receive Turn-by-Turn directions. Due to the existing cellular provider not having roaming agreements in areas outside of Canada to support transmitting of the packet data required for Turn-By-Turn feature to operate. The customer has 3 options while traveling through the United Sates. First if the vehicle is equipped with a navigation radio they can request a "Destination Download" to the vehicle. Second if the customer uses the OnStar RemoteLink app they can send the directions to the vehicle. The third option would be to have the vehicle loaded with a ?500 phone number? The customer will no longer be able to use their Hands Free Calling minutes when the new 500 phone number is loaded. If a customer chooses to restore Hands Free Calling in the future a new phone number will be assigned to the vehicle; previous phone numbers are not available.