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Tesla has issued a new 437 Model Y SUV recall over a potentially loose bolt that could cause the upper control arm to separate from the steering knuckle.
This has happened on three Model Y’s to date, but Tesla is not aware of any crashes as a result of the fault.
Tesla describes the problem with a safety recall report to NHTSA:
The bolts connecting the front upper control arm and the steering knuckle may not have been tightened to specification. If not properly secured, the upper control arm may detach from the stub axle, resulting in excessive negative or positive camber and negative impact on the steering.
Excessive wheel camber can affect the driver’s ability to control the vehicle and increase the risk of a collision, resulting in recall.
Tesla describes the timeline of the recall:
On Sunday, November 1, 2020, the Field Quality team learned of the existence of two vehicle repairs (one on September 21, 2020 and one on October 16, 2020) where the upper control arm had separated from the steering knuckle. . The repairs were reviewed by engineering and production teams and a root cause and scope investigation was initiated, during which a third vehicle repair on October 18, 2020 was identified. None of the incidents resulted in an injury or accident. On Tuesday, November 10, 2020, this matter was reviewed with Tesla executives and Tesla determined that there was a safety-related flaw.
The automaker determined that 437 Model Y vehicles potentially exhibited the defect on the basis of a ‘two month period
period in which manufacturing records cannot confirm that the front upper control arm was properly attached to the steering knuckle ”on these vehicles.
Earlier this month, Tesla changed its processes to remedy the situation:
Various changes were quickly made to the production line installation process to mitigate recurrence, torque angle limits were refined, and secondary inspections and audits were implemented.
Affected Model Y owners are notified and the fix is as easy as adjusting the binding inside
Characteristics.
Here is the full NHTSA fault report:
This is the second recall Tesla issued today.
Earlier this morning, we reported that Tesla had recalled more than 9,000 Model X SUVs on small parts that can come loose while driving.
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