---
title: How do I attach or detach a vehicle?
description: Options for attaching and detaching tags to/from assets.
---

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# How do I attach or detach a vehicle?

## Options for attaching and detaching tags to/from assets.

The portal has multiple inroads for attaching, detaching, and replacing tags. When a vehicle and tag are attached, it means that tag has been physically placed in the automobile, and both the vehicle and tag have been defined within the system with a relationship between the two. Users with the role of Standard and Administrator have access to this feature.

Vehicle and tag relationships can be defined from the:

Vehicles Tab - attach or detach from Vehicles tab

Vehicle Details - detach tag, replace tag

Tags Tab - attach and detach from Tags tab

***Best Option! Replace Tag***

Unless you are permanently removing a tag from a vehicle, the Replace Tag option on Vehicle Details is the most efficient method to detach and re-attach a tag. Locate the necessary vehicle either in My Lot or on the map. Use click to see more from map's right menu with a selected vehicle or click the Vehicle ID link in My Lot.

![VD Replace](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/VD%20Replace.png?width=688&height=365&name=VD%20Replace.png) 

*Note: If the vehicle does not have an attached status, the Replace Tag button does not appear. *

Input a new valid Tag ID (status of unattached, normal battery) and click Next. Input vehicle attributes and click Submit to complete the replacement. 

***Attach Option 1: My Lot Vehicles***

Open Vehicles tab in My Lot. Click Attach from the Vehicles menu. Alternatively, locate the vehicle and choose the Attach icon from the Actions column. 

![MLV Attach button](https://support.cognosos.com/hs-fs/hubfs/2024%20User%20Guides/FVL/MLV%20Attach%20button.png?width=350&height=66&name=MLV%20Attach%20button.png)

![MLV Attach icon](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/MLV%20Attach%20icon.jpg?width=688&height=70&name=MLV%20Attach%20icon.jpg)

If attach was initiated through the Actions column, the vehicle ID will auto-populate in the Vehicle ID field in the tag attach window. If no vehicle was selected, both fields will be blank. Input information as needed. Click Next. 

Provide the vehicle attributes by completing the custom fields. To note, not all organizations utilize custom attributes so this may not be required.

 ![Attach Tag2](https://support.cognosos.com/hs-fs/hubfs/FVL%20AA%20Graphics/Attach%20Tag2.png?width=688&height=294&name=Attach%20Tag2.png)

Use the drop-down lists or input values for vehicle details as needed. Add new values to custom fields as needed. Select Submit to complete the input or Back to change the tag or vehicle ID. When complete, the vehicle/tag information is updated across the portal.

***Attach Option 2: Vehicle Details***

When a vehicle has the status of unattached, the Vehicle Details page will display the Attach Tag option. Access the Vehicles Details page from the map or My Lot by.

![VD Attach](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/VD%20Attach.png?width=688&height=357&name=VD%20Attach.png)Select that option to set up the tag. The workflow follows as outlined in *Attach Option 1*.  

***Attach Option 3: My Lot Tags***

Open the Tags tab under My Lot. You may use filter or search to look up and attach a specific device.  Select Attachfrom the Tag menu or use Attach from the Actions column. Ensure a sufficient battery level in the selected tag.

![MLT Attach button](https://support.cognosos.com/hs-fs/hubfs/2024%20User%20Guides/FVL/MLT%20Attach%20button.png?width=350&height=83&name=MLT%20Attach%20button.png)

![MLT Attach icon](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/MLT%20Attach%20icon.png?width=688&height=55&name=MLT%20Attach%20icon.png)

In the Tag Attachment pop-up window input proper values into the Tag ID (if no Tag selected) and Vehicle ID fields. A valid, unique tag ID and vehicle ID are required to complete the operation.

Select Nextto continue.

The process to add vehicle details continues as described in *Attach* *Option 1***.** Once complete, the tag/vehicle attachment is updated across the portal and in the mobile app.   

***Detach Option 1: My Lot Vehicles***

Open the Vehicles list under My Lot. Locate the vehicle and and choose Detach from the Actions column; or simply select Detach from the Vehicles menu. 

![MLV Detach icon](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/MLV%20Detach%20icon.jpg?width=688&height=83&name=MLV%20Detach%20icon.jpg)

![MLV Detach button](https://support.cognosos.com/hs-fs/hubfs/2024%20User%20Guides/FVL/MLV%20Detach%20button.png?width=350&height=68&name=MLV%20Detach%20button.png)

Only the tag or vehicle ID is required to perform the operation. If blank, input the correct ID for either.![Detach confirm](https://support.cognosos.com/hs-fs/hubfs/FVL%20AA%20Graphics/Detach%20confirm.png?width=350&height=105&name=Detach%20confirm.png)

Select Confirm to continue the process or Cancel to disregard the action. Once detached, the automobile can no longer be tracked through the portal.

This operation removes the relationship between the tag and the vehicle. If you need to continue tracking the vehicle, attach a new tag and ensure the new tag is with the vehicle.

***Detach Option 2: Vehicle Details***

Use this option to detach a tag from a vehicle without replacing it (e.g., car sale). Open the Vehicles page under My Lot. Locate the vehicle and tag that need to be detached from one another. From the Vehicle Details page select Detach Tag. 

![VD Detach](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/VD%20Detach.png?width=688&height=364&name=VD%20Detach.png)The Vehicle Detachment pop-up window opens. Confirm the detachment. Detaching the tag removes the relationship between the tag and the vehicle. If you need to continue tracking the vehicle, attach a new tag and ensure the new tag is with the vehicle.

***Detach Option 3: My Lot Tags***

Open the Tags tab under My Lot. To detach a tag, select the Detach menu option or locate the tag to detach and use the icon from the Actions column.

![MLT Detach button](https://support.cognosos.com/hs-fs/hubfs/2024%20User%20Guides/FVL/MLT%20Detach%20button.png?width=350&height=82&name=MLT%20Detach%20button.png)

![MLT Detach icon](https://support.cognosos.com/hs-fs/hubfs/FVL%20UG%202025/MLT%20Detach%20icon.png?width=688&height=55&name=MLT%20Detach%20icon.png)

A valid tag ID is required to complete this operation. Select Confirm in the Vehicle Detachment pop-up window to continue. Otherwise select Cancel to return to the Tags list without making changes. 

![Detach Tag Tag ID](https://support.cognosos.com/hs-fs/hubfs/2024%20User%20Guides/FVL/Detach%20Tag%20Tag%20ID.png?width=350&height=101&name=Detach%20Tag%20Tag%20ID.png)

Once detached, that Tag and vehicle will no longer be connected for location services and data gathering purposes. Attach a new tag to maintain location and information services for the vehicle. 

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