- Component
- ELECTRONIC STABILITY CONTROL (ESC); SERVICE BRAKES, AIR
- Problem
- Navistar, Inc. (Navistar) is recalling certain 2019 IC Bus CE school buses equipped with feature code 04091 (dual air brake system) and 04AZS (Antilock Brake System (ABS) with 4 channel Electronic Stability Protection (ESP)). The air supply line to the SR7 roll stability valve may have been improperly routed to the ATR6 brake control valve steer axle delivery port, when it should be connected to the ATR6 brake control valve control port.
- Risk
- During a stability control oversteer event when there are slippery road conditions, the parking brakes may be modulated unintentionally, potentially causing a loss of control and increasing the risk of a crash.
- Remedy
- Navistar will notify owners, and dealers will reroute the SR7 roll stability valve supply line to the ATR6 brake control valve control port, free of charge. The recall began on June 12, 2018. Owners may contact Navistar customer service at 1-800-448-7825. Navistar's number for this recall is 18506.
- 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.
What this recall means for you
On certain 2019 school buses with dual air brakes and stability control, the air supply line to the roll stability valve may have been connected to the wrong port on the brake control valve. During a stability control event on slippery roads, the parking brakes can be applied unintentionally, which could cause a loss of control and raise the risk of a crash.
Dealers will reroute the affected air supply line to the correct port free of charge. Owners can contact Navistar customer service at 1-800-448-7825 and reference recall number 18506. You can also check your vehicle identification number (VIN) for open recalls to see whether your bus is affected.
Check whether this recall is open on your vehicle
Official recall notice
Affected vehicles
| IC Bus Cesb | 2019 |
|---|