Rear Brake Line Failure – 2019-2023 Braun Chief XL Type I, Express Plus Type I, & Liberty Type I ambulances

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May 9, 2023 NHTSA CAMPAIGN NUMBER: 23V331000

Rear Brake Line Failure

The loss of rear brake function can increase the risk of a crash.

 

NHTSA Campaign Number: 23V331

Manufacturer Braun Ambulances

Components SERVICE BRAKES, HYDRAULIC

Potential Number of Units Affected 35

 

Summary

Braun Ambulances (Braun) is recalling certain 2019-2023 Chief XL Type I, Express Plus Type I, and Liberty Type I ambulances built on Chevrolet medium and heavy-duty chassis. The Liquid Spring suspension systems may come in direct contact with the right rear brake line, causing excessive wear and possibly resulting in the loss of the rear brakes.

 

Remedy

Dealers will replace and reroute the rear brake lines, free of charge. Owner notification letters are expected to be mailed May 29, 2023. Owners may contact Braun customer service at 1-866-305-8402. Braun’s number for this recall is 2023-01.

 

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.

 


Chronology :

On certain Chevrolet Medium Duty Chassis, the Liquid spring suspension can contact the right rear brake line and cause fatigue and eventual failure.

Liquid Spring identified the potential brake line interference issue with Chevy Medium Duty Chassis prior to MY22. They developed new brackets to position the brake lines and mitigate any interference or rubbing. This was implement on the liquid spring installation kits for MY22 Chevy chassis moving forward. It was confirmed that the correct brackets were being installed by Braun in March of 2023 after the first report from the field.

March 2023 – Trucks 8488, 8716
Received initial call from customer about loss of rear brakes on 2 Braun vehicles in the field. The vehicles were evaluated and interference between the brake lines and liquid spring system (installed by Braun) was found to be root cause. There was a hole rubbed in the rear brake line resulting in the failure. The brake lines were replaced, and potential interference removed through the Braun dealer network.

April 2023 – Truck 8307
The truck was delivered to Braun for unrelated service and the vehicle was inspected for interference between the brake lines and the Liquid Spring. No interference was observed between the brake lines and liquid spring components.

The total population of affected vehicles was reviewed and arrived at a total of thirty-four vehicles.

The decision was made to move forward with the recall due to the sever nature of the failure on the 2 initial trucks. No additional failures have been reported by customers at this time. The recall and service work will inspect all 34 vehicles in the field, replace the brake lines, and ensure proper clearance between the brake lines and liquid spring components.

 


15 Affected Products

Vehicles

MAKE MODEL YEAR
BRAUN AMBULANCES CHIEF XL TYPE I 2019-2023
BRAUN AMBULANCES EXPRESS PLUS TYPE I 2019-2023
BRAUN AMBULANCES LIBERTY TYPE I 2019-2023

 


4 Associated Documents

Noncompliance Notice 573 Report

RCLRPT-23V331-5780.PDF 216.422KB

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Recall Acknowledgement

RCAK-23V331-7245.pdf 645.797KB

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Manufacturer Reimbursement Plan – Braun Rear Brake Line Rubbing Reimbursement Plan

RMRP-23V331-4685.pdf 79.142KB

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Chronology

RMISC-23V331-2021.pdf 116.074KB

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Latest Recalls Documents

https://www-odi.nhtsa.dot.gov/acms/cs/documentList.xhtml?docId=23V331&docType=RCL

 


 

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