SB-21-33-002 – Loose Brake Caliper Bolts – 2019-2021 Tesla Model 3 & 2020-2021 Model Y

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May 25, 2021 NHTSA CAMPAIGN NUMBER: 21V387000

Loose Brake Caliper Bolts

Contact with the rim may cause a loss of tire pressure, increasing the risk of a crash.

 

NHTSA Campaign Number: 21V387

Manufacturer Tesla, Inc.

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 5,974

 

Summary

Tesla, Inc. (Tesla) is recalling certain 2019-2021 Model 3 and 2020-2021 Model Y vehicles. The brake caliper bolts may be loose, allowing the brake caliper to separate and contact the wheel rim.

 

Remedy

Tesla Service will inspect and tighten, or replace the caliper bolts as necessary, free of charge. Owner notification letters were mailed July 23, 2021. Owners may contact Tesla customer service online by visiting www.tesla.com/support/contact or by calling 1-877-79-TESLA (or 1-877-798-3752). Tesla’s number for this recall is SB-21-33-002.

 

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

 

Check if your Tesla has a Recall

 


Condition

On certain Model 3 and Model Y vehicles, the brake caliper bolts may not be torqued to internal specifications.

 

Correction

Inspect and confirm that all brake caliper bolts are torqued to internal specifications.

 

Procedure (Mobile Service)

NOTE: This procedure was designed for correction via Mobile Service. If the vehicle is at the Service Center, skip to the “Procedure (Service Center)” section.

1. Loosen the LH front and LH rear wheel lug nuts.

2. Place the LH front and LH rear corners of the vehicle on jack stands (refer to Service Manual procedure 10000605; Model 3, Model Y).

3. Remove the LH front and LH rear wheels (refer to Service Manual procedure 34015001; Model 3, Model Y).

4. At the LH front corner of the vehicle, inspect the following components for damage. Note any damage found in the “Internal Notes” field of the Service Activity.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

a. Wheel

b. Knuckle

c. Brake shield, caliper, and rotor

d. Brake hoses and brake lines near the brake caliper

e. Electronic parking brake housing and harness (rear corners)

5. Inspect the LH front brake caliper mounting bolts (Figure 1).

a. If a bolt appears to be properly torqued, retorque the bolt (torque 94 Nm) and take note in the “Internal Notes” field of the Service Activity.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

b. If a bolt does not appear to be torqued to specification, remove the bolt, and then inspect the caliper threaded bore and the knuckle bolt hole.

i. If no damage is found on these components, install a new bolt (torque 94 Nm) and take note in the “Internal Notes” field of the Service Activity.

ii. If damage is found on these components, take note in the “Internal Notes” field of the Service Activity, and then skip to the next step. Do not replace any components.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

6. Repeat steps 4–5 on the LH rear corner of the vehicle (rear brake caliper mounting bolt torque 83 Nm).

7. Install the LH front and rear wheels (refer to Service Manual procedure 34015001; Model 3, Model Y).

8. Repeat steps 1–7 on the RH side of the vehicle.

9. If damage to any parts was noted, create and escalate a Toolbox session to Zone, and then arrange for the vehicle to be towed to the Service Center.

 

Procedure (Service Center)

1. Loosen the lug nuts on all 4 wheels.

2. Raise and support the vehicle on a 2 post lift (refer to Service Manual procedure 10000205; Model 3, Model Y).

3. Remove all 4 wheels (refer to Service Manual procedure 34015001; Model 3, Model Y).

4. At the LH front corner of the vehicle, inspect the following components for damage. Note any damage found in the “Internal Notes” field of the Service Activity.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

a. Wheel

b. Knuckle

c. Brake shield, caliper, and rotor

d. Brake hoses and brake lines near the brake caliper

e. Electronic parking brake housing and harness (rear corners)

5. Inspect the LH front brake caliper mounting bolts (Figure 2).

a. If a bolt appears to be properly torqued, retorque the bolt (torque 94 Nm) and take note in the “Internal Notes” field of the Service Activity.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

b. If a bolt does not appear to be torqued to specification, remove the bolt, and then inspect the caliper threaded bore and the knuckle bolt hole.

i. If no damage is found on these components, install a new bolt (torque 94 Nm) and take note in the “Internal Notes” field of the Service Activity.

ii. If damage is found on these components, take note in the “Internal Notes” field of the Service Activity, and then skip to the next step. Do not replace any components.

NOTE: If using Warp Service, note damage in the “Cause Narrative” field of the Repair Order (RO).

6. Repeat steps 4–5 on all other corners of the vehicle.

• Front brake caliper mounting bolt torque 94 Nm

• Rear brake caliper mounting bolt torque 83 Nm

7. If damage to any parts was noted, create and escalate a Toolbox session to Zone. Service Engineering will provide case-by-case repair instructions.

8. Install all 4 wheels when repairs (if any) are complete (refer to Service Manual procedure 34015001; Model 3, Model Y).

 


IMPORTANT SAFETY RECALL

NHTSA Recall Code: 21V-387

 

Dear Tesla Owner,

This notice is sent to you in accordance with the National Traffic and Motor Vehicle Safety Act. Tesla, Inc., has determined that a defect which relates to motor vehicle safety exists in certain Model Year 2019-2021 Model 3 vehicles and Model Year 2020-2021 Model Y vehicles. Our records show that you are the owner of a vehicle affected by this action.

 

REASON FOR THIS RECALL

The brake caliper bolts may be loose, allowing the brake caliper to separate and contact the wheel rim, which may cause a loss of tire pressure, increasing the risk of a crash.

 

WHAT TESLA WILL DO

At no charge to you, Tesla Service will inspect the bolts and adjust them to internal specification or replace them if necessary. In the unlikely event that related tire damage is found during inspection, we will repair or replace the tire free of charge.

 

WHAT YOU SHOULD DO

Please schedule a service appointment through your Tesla mobile app. Alternatively, if you wish to contact your nearest Tesla Service Center or require technical assistance, please visit www.tesla.com/findus or call 1-877-79TESLA (1-877-798-3752). For awareness, the appointment will take approximately 30 minutes to perform both the inspection and repair, if necessary.

If you believe that Tesla has failed or is unable to remedy this defect without charge or within a reasonable time, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington, DC 20590, by calling 1-888-327-4236 (TTY: 1-800-424-9153), or by visiting www.safercar.gov.

Federal law requires any lessor who receives a notification of a determination of a noncompliance pertaining to any leased motor vehicle to send the notice to the lessee within 10 days.

 

Thank you for being a Tesla customer. We are committed to ensuring that your vehicle provides the highest possible level of safety.

 

TESLA, INC.

 



5 Affected Products

Vehicles

MAKE MODEL YEAR
TESLA MODEL 3 2019-2021
TESLA MODEL Y 2020-2021

 


7 Associated Documents

Remedy Instructions and TSB

RCRIT-21V387-7012.pdf 219.947KB

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Recall 573 Report- Amendment 1

RCLRPT-21V387-8391.PDF 215.704KB

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Owner Notification Letter(Part 577)

RCONL-21V387-4169.pdf 18.583KB

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Recall Acknowledgement

RCAK-21V387-4357.pdf 704.61KB

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Defect Notice 573 Report

RCLRPT-21V387-6066.PDF 215.659KB

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Recall Quarterly Report #1, 2021-3

RCLQRT-21V387-2878.PDF 211.13KB

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Recall Quarterly Report #2, 2021-4

RCLQRT-21V387-3777.PDF 211.232KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=21V387&docType=RCL

 


 

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