Rear Brake Caliper Flexible Line May Leak – Life Line – 2019-2020 RAM 5500

May 25, 2021 NHTSA CAMPAIGN NUMBER: 21V384000

Rear Brake Caliper Flexible Line May Leak

A brake fluid leak can cause a loss of brakes and increase the risk of a crash.


NHTSA Campaign Number: 21V384

Manufacturer Life Line Emergency Vehicles


Potential Number of Units Affected 36



Life Line Emergency Vehicles (Life Line) is recalling certain 2019-2020 Dodge 5500 vehicles. The rear brake caliper flexible line may have been improperly routed, which could allow it to chafe against suspension components, and result in a brake fluid leak.



Dealers will modify the rear brake caliper flexible line mounting, and replace the rear brake caliper flexible line as needed, free of charge. Owners may contact Life Line customer service at 1-563-578-3317 ext. 132.



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


Important Safety Recall


NHTSA Recall Number: 20E031


Date: May 13, 2020


Subject: RAM Rear Brake Caliper Flexible Line Modification Safety Recall Notice


Dear LiquidSpring Suspension Owner,


This notice is being sent to you in accordance with the requirements of the National Highway Traffic and Motor Vehicle Safety Act.


LiquidSpring LLC has determined that a defect which relates to motor vehicle safety exists in a component of certain LS suspension systems installed on 2019-20 model year RAM 4500/5500 cab chassis, and only suspension systems installed on the above chassis are included in the safety recall.


These suspension systems are typically installed on ambulances and other specialty vehicles. The affected system component is the rear brake caliper flexible line. The routing of the rear brake caliper flexible lines during the installation of the suspension kit may be causing brake caliper flexible line wear due to contact with a suspension component(s). Continued vehicle use with the rear brake caliper flexible line contacting suspension a component(s) may result in partial or complete loss of rear service brakes which could cause damage to the chassis and/or other vehicles, and possibly result in a crash.


You are receiving this notice because records indicate that you may have purchased a vehicle equipped with an affected LS suspension system. LiquidSpring recommends that vehicle operator(s) be aware of any abnormal brake pedal feedback or reduced braking ability and that the rear brake caliper flexible lines should be inspected for any leakage. If any wear is found on the rear brake caliper flexible lines (not the protective spiral wrap), do not drive the vehicle.


The affected suspension systems have a serial number range 2007563 – 2013191. The suspension system serial number may be found on the serial number plate located on the driver side front frame hanger of the suspension. See Figures 2 & 3 for the location and view of the serial number plate.


If you have a 2019-20 model year RAM 4500/5500 cab chassis equipped with a LiquidSpring suspension system within the above serial number range, please contact LiquidSpring to arrange service to have the rear brake caliper flexible lines inspected and modified to address the potential wear issue, free of charge. This repair will take about 1 hour to complete.


The LiquidSpring contact information is as follows:


Phone: 765-474-7816   Ext. 1 for Customer Service – 8:00 a.m. – 5:00 p.m. EDT Email:


If LiquidSpring fails or is unable to arrange service as described above without charge, you may submit a complaint to the Administrator, National Highway Traffic Safety Administration, 1200 New Jersey Avenue, S.E., Washington, DC 20590 or call toll-free Auto Safety Hotline at 1-888327-4236 (TTY 1-800-424-9153); or go to


Commitment to safety, quality and respect for the customer are our highest priorities. Please accept our sincere apology for any inconveniences that may result from modifying the rear brake caliper flexible lines.




Dean F. Bartolone – President/CEO


2 Affected Products


LIFELINE RAM 5500 2019-2020


4 Associated Documents

Defect Notice 573 Report

RCLRPT-21V384-4830.PDF 217.096KB



ISSUED Owner Notification Letter(Part 577)

RCONL-21V384-2019.pdf 239.862KB



Recall Acknowledgement

RCAK-21V384-7971.pdf 645.434KB



Recall Quarterly Report #1, 2021-2

RCLQRT-21V384-4557.PDF 211.144KB



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