# Service bulletin SIL 786

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: 10186580
- Published by NHTSA: 2021\-02\-04
- Manufacturer's number: SIL 786
- Manufacturer's date: 2021\-01\-25
- NHTSA component: STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS

## NHTSA's summary

Some aluminum body doors and box lids require excessive force and may make a popping sound when being opened and closed. Certain bodies are equipped with doors or box lids that contain aluminum hinge rods going through metal hinges that are manufactured from a different metal. Under some conditions the hinges can stick or seize due to salt solutions that damage the protective coating of the aluminum hinge rod. If the hinge rod seizes, it can cause damage to the hinge, door, or box lid. To protect the hinge rod from being damaged and seizing, clean the hinge rod and apply a corrosion inhibitor lubricant. A checklist and lubrication process is provided with the notification to include in the Preventive Maintenance and Inspection Checklist for future use.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186580-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10186580-9999.pdf)

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

## Components

Body and frame

## Vehicles listed

- 2012 to 2018 ALTEC SERVICE BODY

JSON: [/v1/bulletins/10186580](/v1/bulletins/10186580)

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