OFFICIAL CAMPAIGN FILE
NHTSA campaign 11V272000
NHTSA campaign 11V272000 covers 10 published year-and-model reports from 1 makes in this index and lists 1,524 potentially affected units campaign-wide. VIN eligibility must be checked separately.
Report received May 3, 2011 · Snapshot September 21, 2026
01 / DEFECT RECORD
What NHTSA campaign 11V272000 says
Defect summary
Mack trucks is recalling certain model year 2011-2012 chu, cxu, gu, leu and mru trucks manufactured from october 15, 2010, through january 31, 2011, and equipped with gunite automatic slack adjusters. due to an incomplete "knitting" of the iron at the time of casting, inadequate structural integrity of the slack adjuster housing can occur, which could cause the housing to break at the handle under normal operating loads.
Consequence summary
Slack adjusters with this flow notch could crack under normal braking conditions causing loss of braking which could result in a vehicle crash.
02 / CORRECTIVE ACTION
Remedy for NHTSA campaign 11V272000
Mack trucks will notify owners and dealers will replace the subject slack adjusters free of charge. the safety recall began on august 24, 2011. owners may contact mack trucks at 1-800-528-6586.
- Owner notification
- August 12, 2011
- Filing manufacturer
- MACK TRUCKS, INC
- Component groups
- SERVICE BRAKES, AIR
03 / PUBLISHED VEHICLES