# Service bulletin IB22\-N\-001

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: 10225521
- Published by NHTSA: 2022\-11\-01
- Manufacturer's number: IB22\-N\-001
- Manufacturer's date: 2022\-10\-19
- NHTSA component: EXTERIOR LIGHTING:TURN SIGNAL; ELECTRICAL SYSTEM

## NHTSA's summary

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.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225521-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10225521-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Lighting, Turn signals

## Vehicles listed

- 2011 ISUZU F\-SERIES
- 2018 to 2023 ISUZU F\-SERIES
- 2018 to 2023 ISUZU FTR
- 2022 ISUZU FVR
- 2011 to 2023 ISUZU N\-SERIES
- 2011 to 2015 ISUZU NPR
- 2016 to 2020 ISUZU NPR
- 2011 to 2015 ISUZU NPR HD
- 2016 to 2020 ISUZU NPR HD
- 2012 to 2015 ISUZU NPR XD
- 2016 to 2020 ISUZU NPR XD
- 2011 to 2015 ISUZU NQR
- 2016 to 2020 ISUZU NQR
- 2022 ISUZU NRQ
- 2011 to 2015 ISUZU NRR
- 2016 to 2022 ISUZU NRR

JSON: [/v1/bulletins/10225521](/v1/bulletins/10225521)

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