Unintended Vehicle Movement

Affected vehicles (1)

Component / system

Defect

Marion Body Works Inc. (Marion Body Works) is recalling one 2018 International SR525 emergency vehicle equipped with feature codes 12VXT or 12VXU. With the parking brake applied and the automatic transmission in the 'Drive' or 'Reverse' position, and when the stationary PTO switch is engaged by the operator, the engine RPM will ramp up and may overcome the parking brake's ability to hold the vehicle.

Risk / consequence

Unintended vehicle movement increases the risk of a crash.

Remedy

Marion Body Works will update the Engine Control Module to enable the PTO neutral interlock, free of charge. The affected vehicle is within manufacturer's control, and therefore no owner notification letter will be mailed. Owners may contact Marion's customer service at 1-715-754-5261. Marion's number for this recall is 19V-841.

Chronology of events

1. Aug 29, 2019

   •08/29/2019 – Navistar receives communication from a field service representative that was able to ramp up the engine throttle with the steering wheel switches when the transmission was in gear and the parking brake applied on HV model vehicles. •09/06/2019 – Navistar initiates investigation to analyze and understand the issue. •9/10/2019 – Navistar quarantines suspect vehicles at all assembly plants and updates Power Train Data Base (PTDB) calibration for feature codes 12VXT or 12VXU that enables the PTO neutral interlock. •09/25/2019 – Navistar begins building vehicles with a new calibration. •10/08/2019 – Navistar determines a potential suspect population, strictly based on the suspect codes mentioned above while Navistar continues to investigate the issue. •10/17/19 – Navistar’s Compliance Committee meets to discuss the investigation to date, determine the risks associated with the condition of the interlock not being enabled for feature code 12VXT or 12VXU, and if certain axle brake combinations may not cause unintended movement based on the axle and brake configuration. •11/7/2019 – Navistar completes the analysis on all axle brake combinations and determined the final suspect population that could be susceptible to unintended vehicle movement if the steering wheel switches were used to adjust engine speed when the vehicle was in gear. •11/14/2019 – Navistar declares a Safety Recall.

Notification schedule

Dealer notification

MAR 25, 2022 - MAR 25, 2022

Owner notification

MAR 25, 2022 - MAR 25, 2022