# UpdateVehicleRequestItem
<a name="API_UpdateVehicleRequestItem"></a>

Information about the vehicle to update.

**Important**  
 AWS IoT FleetWise will no longer be open to new customers starting April 30, 2026. If you would like to use AWS IoT FleetWise, sign up prior to that date. Existing customers can continue to use the service as normal. For more information, see [AWS IoT FleetWise availability change](https://docs.aws.amazon.com/iot-fleetwise/latest/developerguide/iotfleetwise-availability-change.html).

## Contents
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 ** vehicleName **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-vehicleName"></a>
The unique ID of the vehicle to update.  
Type: String  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `[a-zA-Z\d\-_:]+`   
Required: Yes

 ** attributes **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-attributes"></a>
Static information about a vehicle in a key-value pair. For example:  
 `"engineType"` : `"1.3 L R2"`   
Type: String to string map  
Key Length Constraints: Minimum length of 1. Maximum length of 150.  
Key Pattern: `[a-zA-Z0-9_.-]+`   
Required: No

 ** attributeUpdateMode **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-attributeUpdateMode"></a>
The method the specified attributes will update the existing attributes on the vehicle. Use`Overwite` to replace the vehicle attributes with the specified attributes. Or use `Merge` to combine all attributes.  
This is required if attributes are present in the input.  
Type: String  
Valid Values: `Overwrite | Merge`   
Required: No

 ** decoderManifestArn **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-decoderManifestArn"></a>
The ARN of the signal decoder manifest associated with the vehicle to update.  
Type: String  
Required: No

 ** modelManifestArn **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-modelManifestArn"></a>
The ARN of the vehicle model (model manifest) associated with the vehicle to update.  
Type: String  
Required: No

 ** stateTemplatesToAdd **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-stateTemplatesToAdd"></a>
Associate additional state templates to track the state of the vehicle. State templates determine which signal updates the vehicle sends to the cloud.  
Type: Array of [StateTemplateAssociation](API_StateTemplateAssociation.md) objects  
Array Members: Minimum number of 1 item. Maximum number of 20 items.  
Required: No

 ** stateTemplatesToRemove **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-stateTemplatesToRemove"></a>
Remove existing state template associations from the vehicle.  
Type: Array of strings  
Array Members: Minimum number of 1 item. Maximum number of 20 items.  
Length Constraints: Minimum length of 1. Maximum length of 100.  
Pattern: `[a-zA-Z\d\-_:]+`   
Required: No

 ** stateTemplatesToUpdate **   <a name="iotfleetwise-Type-UpdateVehicleRequestItem-stateTemplatesToUpdate"></a>
Change the `stateTemplateUpdateStrategy` of state templates already associated with the vehicle.  
Type: Array of [StateTemplateAssociation](API_StateTemplateAssociation.md) objects  
Array Members: Minimum number of 1 item. Maximum number of 20 items.  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/iotfleetwise-2021-06-17/UpdateVehicleRequestItem) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/iotfleetwise-2021-06-17/UpdateVehicleRequestItem) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/iotfleetwise-2021-06-17/UpdateVehicleRequestItem)