2021-2023 BMW Transmission Pulsation During Remote Start

Symptoms of Transmission Pulsation

Owners of certain 2021-2023 BMW models may experience an "unwanted pressure pulsation in the transmission during a 'Remote Engine Start'". This symptom specifically occurs when the vehicle is started remotely, indicating a potential issue with how the transmission system engages or prepares for operation under these specific conditions. This is the core issue described in the manufacturer communication.

Trigger Conditions

The unwanted transmission pressure pulsation is directly linked to the use of the Remote Engine Start feature. The problem manifests as the engine initiates remotely, suggesting a software-related anomaly in the powertrain's communication or control during this specific startup sequence. This condition affects various BMW models, including the 2023 BMW X5 manufacturer_communication.

The Underlying Cause: Software Error

BMW has identified that the root cause of this issue is a software error. This error likely affects the control logic within the transmission or engine management system, leading to the observed pressure pulsation when the vehicle is started via Remote Engine Start. This is not a mechanical failure but rather a programming oversight that impacts the smooth operation of the transmission during remote startup.

Repair Procedure Summary

The resolution for the unwanted pressure pulsation in the transmission during a 'Remote Engine Start' involves a software update. This update will reprogram the affected control unit, correcting the error that causes the pulsation. Owners should note that this is a software-based fix, meaning no physical components of the transmission or engine need to be replaced. The manufacturer communication, NHTSA ID 10242688, guides technicians on applying this corrective software.

What Owners Should Do

If you own a 2021-2023 BMW model and experience an "unwanted pressure pulsation in the transmission during a 'Remote Engine Start'", it is recommended to contact your authorized BMW dealership. They can confirm if your vehicle is affected by this specific software error and perform the necessary software update. Since this is a manufacturer communication regarding a known issue, the repair is typically covered under warranty. Ensure you mention the symptom of transmission pulsation during remote start when scheduling your service for your 2023 BMW X5 manufacturer_communication.

Source: NHTSA ID: 10242688