Select Tesla Model S/X to receive free battery seal upgrade for better flood resistance

A number of Tesla owners have reported that their Model S and Model X vehicles are in line to receive upgraded parts for their high-voltage battery seal system. A service bulletin for select Model S and Model X vehicles has also been posted on the company’s service website. 

Based on screenshots that have been shared online, the battery seal upgrade should improve the Model S and Model X’s performance and reliability in floods.

Tesla’s Proactive Upgrade

As could be seen in social media posts from the electric vehicle community, Tesla seems to be sending notifications only to select Model S and Model X owners. The notification indicates that their vehicles are up for a free upgrade, which should improve the vehicles’ resistance to floods. Tesla, however, still cautioned that during actual flooding events, it is still best to keep vehicles out of the water.

Following is Tesla’s message to select Model S and Model X owners: “IMPORTANT NOTICE: Your vehicle is in the queue to receive our latest upgraded parts for the High-voltage (HV) battery seal system – at no cost to you. This enhancement is designed to optimize seal integrity over time and improve the performance and reliability of our battery in incidents of high severity flooding.

“In the event of threatened or actual flooding, we recommend that you move your vehicle to high ground (if safe to do so) and avoid exposure to submersion. This guidance applies to all electric vehicles… At this time, no action is needed from you. Once the parts are available at your local service center you will receive a notification in your Tesla mobile app to schedule service for this upgrade.

A Service Bulletin

Members of the Tesla Motors Club have shared a service bulletin that seemed to be related to the proactive initiative. As per the document, Telsa intends to replace flood port plungers for 2021-2022 Model S and Model X vehicles. The document noted that the replacement flood port plungers are more robust against external water ingress due to submersion during flooding. 

Following is Tesla’s section in its service bulletin about the initiative: “On certain Model S and Model X vehicles built between approximately January 2021 and September 22, 2022, the High Voltage (HV) battery ports’ plungers intended for internal water leak egress (also known as flood ports) can be replaced with plungers that are more robust against external ingress due to submersion during flooding or other similar high-severity abuse instances.”

The replacement of the flood port plungers cannot be performed by the Mobile Service team. Thus, owners of select Model S and Model X vehicles must wait for a notification from the electric vehicle maker once the upgraded parts are available in their local service center.

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