# Service bulletin Bulletin 2021\-4

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: 10191570
- Published by NHTSA: 2021\-05\-04
- Manufacturer's number: Bulletin 2021\-4
- Manufacturer's date: 2021\-04\-13
- NHTSA component: EXTERIOR LIGHTING

## NHTSA's summary

Repair Procedure Revision\- Brake Light Switch Adjustment Vehicle may indicate brake light switch failure, rear brake light stays ON or flashes intermittently.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191570-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10191570-9999.pdf)

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

## Components

Lighting

## Vehicles listed

- 2019 to 2020 CAN\-AM RYKER
- 2020 to 2021 CAN\-AM SPYDER RT

## Recalls for the same vehicles and component

- [23V175000](/recalls/nhtsa/23V175000.md), 2023-03-17: EXTERIOR LIGHTING:BRAKE LIGHTS
- [2023137](/recalls/tc/2023137.md), 2023-03-16: Lights And Instruments

## Other bulletins for the same vehicles and component

- [Bulletin 2020\-6](/bulletins/10178821.md), 2020-08-25, Service bulletin: ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC; EXTERIOR LIGHTING:BRAKE LIGHTS:SWITCH. Repair Procedure Revision\- Brake Light Switch Adjustment

JSON: [/v1/bulletins/10191570](/v1/bulletins/10191570)

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