WRD-22 – Wheel May Detach From Vehicle – 2023 Subaru Solterra

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June 23, 2022 NHTSA CAMPAIGN NUMBER: 22V444000

Wheel May Detach From Vehicle

A wheel detaching from a moving vehicle can result in a loss of vehicle control, increasing the risk of a crash.

 

NHTSA Campaign Number: 22V444

Manufacturer Toyota Motor Engineering & Manufacturing

Components WHEELS

Potential Number of Units Affected 661

 

Summary

Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2023 Subaru Solterra and Toyota BZ4X vehicles. The hub bolts on the wheels may loosen, causing a wheel to detach from the vehicle after low-mileage use.

 

Remedy

Owners are advised not to drive their vehicles until they are repaired. Dealers will replace the hub bolts and wheels, free of charge. Letters notifying owners of the safety risk were mailed June 27, 2022. A second letter will be sent once the remedy is available. Owners may contact Toyota’s customer service at 1-800-331-4331.

 

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.nhtsa.gov.

 

Check if your Subaru has a Recall

 


Description of Problem:

The subject vehicles are equipped with wheels attached to the vehicle with hub bolts. After low-mileage use, all of the hub bolts on a wheel can loosen to the point where the wheel can detach from the vehicle. The cause of the issue and the driving patterns under which this issue could occur are still under investigation. If a wheel detaches from the vehicle while driving, it could result in a loss of vehicle control, increasing the risk of a crash.

 

Chronology of Principal Events:

Mid-May 2022 – Late June 2022

Toyota received a field technical report from the Taiwan market indicating separation of the
front left wheel from the vehicle. Toyota recovered the wheels and hub bolts from this vehicle
for investigation.

Toyota then received two field technical reports from the U.S. market. One of the reports indicated loose hub bolts of the front left wheel and the other indicated a separation of the front left wheel from the vehicle. Toyota reviewed the production process at the vehicle assembly plant and did not identify any abnormalities on the hub bolt tightening history of these three vehicles. Toyota also reviewed the assembly process of the wheel and hub bolts at the assembly plant and did not identify any abnormalities. In addition, although damage was observed on the wheel recovered from the vehicle in the Taiwan market, the damage was believed to be a result of the wheel separating from the vehicle and the cause of the loosening of the hub bolts was not able to be identified. Toyota continued to investigate and conducted a driving test using mass production wheels and hub bolts that were tightened to specification. The testing showed that the hub bolts loosened under certain severe driving patterns.

 

June 20, 2022

While the cause of the issue and the driving patterns under which this issue could occur are still under investigation, the current information indicates that all of the hub bolts on a wheel on the subject vehicles can loosen to the point where the wheel can detach from the vehicle after low-mileage use. Thus, Toyota decided to conduct a voluntary safety recall campaign and will instruct the owners of the subject vehicles not to drive their vehicles. Toyota will continue to investigate the issue and develop a remedy.

As of June 18, 2022, based on a diligent review of records, Toyota’s best engineering judgment is that there are two Toyota Field Technical Reports (received between June 3, 2022 and June 8, 2022) and zero warranty claims that have been received from U.S. sources that relate or may relate to this condition and which were considered in the decision to submit this report.

 

Description of Corrective Repair Action:

All known owners of the subject Toyota bZ4X vehicles will be notified by first class mail and instructed not to drive their vehicles. Owners will also be informed that Toyota’s investigation is ongoing and that they will be contacted when further information is available.

Subaru has informed Toyota that no Solterra vehicles have been sold to dealers or retail purchasers.

 

Reimbursement Plan for pre-notification remedies for Toyota bZ4X vehicles

As the owner notification letters will be mailed out well within the active period of the Toyota New Vehicle Limited Warranty (“Warranty”), all involved vehicle owners for this recall would have been provided a repair at no cost under Toyota’s Warranty.

 

 


2 Affected Products

Vehicles

MAKE MODEL YEAR
SUBARU SOLTERRA 2023
TOYOTA BZ4X 2023

 


19 Associated Documents

Recall Acknowledgement

RCAK-22V444-2481.pdf 740.287KB

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Defect Notice 573 Report

RCLRPT-22V444-8502.PDF 214.049KB

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Toyota – DEFECT INFORMATION REPORT – June 2022

RMISC-22V444-4456.pdf 28.95KB

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Part 577 Owner Notification Envelope

RONE-22V444-2322.pdf 211.639KB

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Toyota – bZ4X Safety Recall Do Not Drive Notice – June 2022

RMISC-22V444-3010.pdf 190.787KB

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Toyota – Dealer Package – June 2022

RCMN-22V444-9457.pdf 2271.789KB

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Toyota – Subarunet Announcement – June 2022

RCMN-22V444-6338.pdf 140.034KB

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Toyota – One App Message Sample – June 2022

RMISC-22V444-0843.pdf 800.598KB

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ISSUED Interim Owner Notification Letter(Part 577)

RIONL-22V444-1161.pdf 352.901KB

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Toyota – Amended Defect Information Report – October 2022

RMISC-22V444-9507.pdf 26.1KB

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Recall 573 Report – October 6, 2022

RCLRPT-22V444-7646.PDF 215.283KB

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Toyota – Dealer Daily Message – October 2022

RCMN-22V444-4990.pdf 151.351KB

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Toyota – Subarunet Announcement – October 2022

RCMN-22V444-1625.pdf 146.129KB

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Toyota – Dealer Daily Message – October 2022

RCMN-22V444-0050.pdf 155.318KB

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Remedy Instructions and TSB

RCRIT-22V444-8118.pdf 2642.461KB

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Toyota – Dealer Packet (Remedy) – November 2022

RCMN-22V444-6442.pdf 342.497KB

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Toyota – AWD Email – November 2022

RMISC-22V444-3856.pdf 153.75KB

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Toyota – 2WD Email – November 2022

RMISC-22V444-4462.pdf 149.953KB

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ISSUED Owner Notification Letter(Part 577)

RCONL-22V444-1827.pdf 355.916KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=22V444&docType=RCL

 


NHTSA ID Number: 10225746

Manufacturer Communication Number: SubaruNet Announ

Summary

UPDATE Safety Recall: WRD-22 Solterra Hub Bolt Issue.

1 Associated Document

Manufacturer Communications

Date: October 5, 2022
UPDATE Safety Recall: WRD-22 Solterra Hub Bolt Issue

https://www.nhtsa.gov/recalls?nhtsaId=10225746

MC-10225746-0001.pdf 146.129KB

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NHTSA ID Number: 10215412

Manufacturer Communication Number: SubaruNet Announ

Summary

(WRD-22 Solterra Hub Bolt Issue)Toyota Motor North America (Toyota) has filed a Defect Information Report (DIR) with the National Highway Traffic Safety Administration (NHTSA) informing the agency of the intent to conduct a voluntary safety recall for certain 2023 model year Toyota bZ4X and Subaru Solterra vehicles.

 

1 Associated Document

Manufacturer Communications

Date: June 23, 2022
New Safety Recall: WRD-22 Solterra Hub Bolt Issue

https://www.nhtsa.gov/recalls?nhtsaId=10215412

MC-10215412-0001.pdf 140.034KB

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