MACK CH 2001: SERVICE BRAKES, AIR:CONTROLS
NHTSA Campaign ID Number: 01V189004
| Make | Model | Year |
|---|---|---|
| MACK | CH | 2001 |
| Date Owners Notified | Date Received by ODI | Date Added to Database |
| 2001-11-16 | 2001-08-01 | 2001-08-01 |
Production Dates: 2000-09-19 - 2001-03-30
Manufacturers Involved: Mack Trucks, Inc.
Component: SERVICE BRAKES, AIR:CONTROLS
Potential Number Of Units Affected: 8268
Report Initiator: MFR MFR Report
VEHICLE DESCRIPTION: HEAVY DUTY TRUCKS EQUIPPED WITH CERTAIN MERITOR-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES. THE VALVE MAY STICK OPEN WHEN A HIGH-PRESSURE APPLICATION IS RELEASED.
WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM. THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.
DEALERS WILL REPLACE THESE VALVES. OWNER NOTIFICATION BEGAN NOVEMBER 16, 2001. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT MACK AT 1-610-709-3011 OR MERITOR WABCO AT 800-535-5560.
ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT '1-888-327-4236'.
