---
title: "[beta] Update engine immobilizer state of a vehicle."
method: PATCH
path: "/beta/fleet/vehicles/{id}/immobilizer"
tags: ["Beta APIs"]
---

# \[beta\] Update engine immobilizer state of a vehicle.

`PATCH /beta/fleet/vehicles/{id}/immobilizer`

## Request

- Base URL: `https://api.samsara.com`
- URL: `https://api.samsara.com/beta/fleet/vehicles/{id}/immobilizer`
- Auth: HTTP bearer

Update the engine immobilizer state of a vehicle. This requires an engine immobilizer to be installed on the vehicle gateway.

 <b>Rate limit:</b> 100 requests/min (learn more about rate limits <a href="https://developers.samsara.com/docs/rate-limits" target="_blank">here</a>).

To use this endpoint, select **Write Vehicle Immobilization** under the Vehicles category when creating or editing an API token. <a href="https://developers.samsara.com/docs/authentication#scopes-for-api-tokens" target="_blank">Learn More.</a>
 

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## Path parameters

- `id` integer, required

## Request body

- EngineImmobilizerUpdateEngineImmobilizerStateRequestBody: A request body to update the engine immobilizer state.
  - `relayStates` UpdateEngineImmobilizerRelayStateRequestBodyRequestBody[], required: A list of relay states. If a relay is omitted, its state won't be updated. If the list is empty, a 400 bad request status code will be returned. If there are multiple states for the same relay, a 400 bad request status code will be returned.
    - `id` 'relay1' | 'relay2', required: The ID of the relay Valid values: `relay1`, `relay2`
    - `isOpen` boolean, required: The desired state of the relay. Provide `true` to open the relay, or `false` to close the relay.

## Response `202`

Accepted response.

## Other responses

- `401`: Unauthorized response.
- `404`: Not Found response.
- `405`: Method Not Allowed response.
- `413`: Content Too Large response.
- `429`: Too Many Requests response.
- `500`: Internal Server Error response.
- `501`: Not Implemented response.
- `502`: Bad Gateway response.
- `503`: Service Unavailable response.
- `504`: Gateway Timeout response.
- `default`: Bad Request response.

---

[API](https://skmtc.dev/samsara/apis/samsara-api.md) - [All operations](https://skmtc.dev/samsara/apis/samsara-api/llms.txt) - [OpenAPI document](https://skmtc.dev/samsara/apis/samsara-api/revisions/a9e35d4999be?raw)