Recall 23V434 covers 26 2023 Tesla Model Y and Model 3 vehicles for a defective pyrotechnic battery disconnect. Repair is free through Tesla Service.
Tesla is recalling 26 2023 Model Y and Model 3 vehicles under recall 23V434 because the pyrotechnic battery disconnect is defective. After a crash or fault detection, the defect can keep the high-voltage battery from being isolated, which raises the risk of electrical shock and injury; Tesla will replace the disconnect free of charge.
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What's wrong?
The pyrotechnic battery disconnect in 2023 Tesla Model Y and Model 3 vehicles is a safety device in the traction battery system. In normal operation, it separates the battery from the rest of the high-voltage system when the vehicle's safety controls command that isolation. That keeps the battery disconnect available for the moment it is needed.
On affected vehicles, the disconnect installed from a supplier's new assembly line was not confirmed to function as designed. A traceability gap let non-functioning parts reach Tesla assembly. If one of those parts is in the vehicle, the disconnect can fail to separate the battery when commanded. The replacement disconnect has been tested and certified to operate as designed.
There is no warning sign before failure. The vehicle can drive normally, and the owner is not expected to feel a change, see a message, or hear a sound that identifies this defect before the disconnect is needed.
Who's affected?
Two Tesla nameplates are listed for the same model year, and both use the same pyrotechnic battery disconnect component.
| 2023 Tesla Model Y | high-voltage traction battery |
|---|---|
| 2023 Tesla Model 3 | high-voltage traction battery |
| Units affected | 26 |
| Field incidents | NHTSA has logged no field incidents to date. |
A matching year and model does not guarantee inclusion. Check your VIN to confirm whether this recall applies to your specific vehicle.
What's the safety risk?
After a crash or fault detection, the defective battery disconnect can leave the high voltage battery connected, which increases the risk of electrical shock and injury. Avoid touching damaged high voltage components, move away from the vehicle if it is damaged, and contact Tesla Service. Repair is free at any franchised Tesla dealer.
What should I do?
- Check your VIN to confirm your 2023 Tesla Model Y or Model 3 is included in this recall.
- Contact Tesla Service to schedule the free pyrotechnic battery disconnect replacement, which restores high voltage battery isolation after a crash or fault detection.
- Bring the recall notice if Tesla sent one, and reference recall number 23V434 when you schedule service.
- Avoid handling high voltage components or damaged battery areas after a crash or fault; have Tesla inspect the vehicle before further use.
What happens at the repair
At Tesla Service, a Tesla technician replaces the pyrotechnic battery disconnect covered by this recall. The replacement parts and labor are free under the recall for affected 2023 Model 3 and Model Y vehicles. Tesla says there are no out-of-warranty repairs related to this condition, so prior repair costs are handled through existing warranty coverage, not through a separate reimbursement program. Ask Tesla Service how warranty coverage applies if you have prior repair paperwork.
| Reimbursement | Warranty coverage applies |
|---|
Timeline
| June 19, 2023 | NHTSA published the recall |
|---|---|
| June 19, 2023 | Dealer notification began |
| June 19, 2023 | Dealer notification ended |
| August 15, 2023 | VIN-searchable in NHTSA's database — Check your VIN to see whether this recall applies to your specific vehicle. |
| August 15, 2023 | Interim owner notification (was planned for this date) |
| August 18, 2023 | Owner notification mailed |
Frequently asked questions
What is recall 23V434?
Recall 23V434 covers 26 2023 Tesla Model 3 and Model Y vehicles with a defective pyrotechnic battery disconnect. After a crash or fault detection, the part can fail to isolate the high-voltage battery, increasing the risk of electrical shock and injury. Tesla Service will replace the part for free.
What should I do if my 2023 Tesla Model 3 or Model Y is on this recall?
Check your VIN to confirm your specific vehicle is included in recall 23V434. If it is, contact Tesla Service to schedule replacement of the pyrotechnic battery disconnect. Reference recall number 23V434 or Tesla recall number SB-23-16-005 when you call.
Is the recall repair free?
Yes. Federal recall law requires the manufacturer to repair the defect at no cost, and Tesla Service will replace the pyrotechnic battery disconnect free of charge. You can contact Tesla customer service at 1-877-798-3752 for scheduling help.
What is the safety risk in recall 23V434?
The risk is electrical shock and injury after a crash or fault detection. In recall 23V434, the defective pyrotechnic battery disconnect can fail to isolate the vehicle's high-voltage battery. Tesla's free repair replaces that disconnect.
When did Tesla notify owners about recall 23V434?
Tesla mailed owner notification letters on August 18, 2023. If you bought the vehicle used or never received a letter, check your VIN and then contact Tesla Service with recall number 23V434 or Tesla recall number SB-23-16-005.
More information
| NHTSA campaign page | nhtsa.gov/vehicle-recalls/23V434000 |
|---|---|
| Tesla customer service | 1-877-798-3752 |
| NHTSA recall # | 23V434 |
| NHTSA recall # (full) | 23V434000 |
Source documents
-
Download Quarterly Report (PDF) - Download Owner Notification Letter (PDF)
- Download Recall Investigation Document (PDF) (PDF)
- Download Recall Acknowledgement (PDF)
- Download Recall Report (PDF)
This article is generated from NHTSA's primary recall filings and reviewed against the source on May 20, 2026. RecallNotify does not paraphrase NHTSA's consequence language; that text is reproduced as written above. Editorial standards →