Service bulletin CB21N001
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.
| Type | Service bulletin |
|---|---|
| NHTSA id | 10207901 |
| Published by NHTSA | 2022-02-11 |
| Manufacturer's number | CB21N001 |
| Manufacturer's date | 2021-09-13 |
| NHTSA component | ELECTRICAL SYSTEM |
NHTSA's summary
Customer Satisfaction Campaign: Vehicles equipped with 6.0L gasoline engines: Inspection and repair instructions of E98 and E97 electrical grounding terminals that may have excess tape or glue on the ground terminal surfaces from the engine harness manufacturing process. This condition may result in a poor ground connection and potentially cause engine surge.
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
| CHEVROLET LOW CAB FORWARD 3500 | 2016 to 2017 |
|---|---|
| CHEVROLET LOW CAB FORWARD 4500 | 2016 to 2017 |
| ISUZU NPR | 2012 to 2015 |
| ISUZU NPR | 2016, 2017 |
| ISUZU NPR HD | 2012 to 2015 |
| ISUZU NPR HD | 2016, 2017 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| IB22-N-001 | 2022-11-01. Service bulletin. We 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. |
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