NHTSA vehicle safety data
2016 Mack LR6 Recalls, Ratings & Complaints
The 2016 Mack LR6 has 1 NHTSA recall campaign and 0 owner complaints on file as of October 16, 2026. Recall repairs are usually free at an authorized Mack dealer.
NHTSA recall and complaint data for the 2016 Mack LR6. Recall data is refreshed daily from NHTSA.
ENGINE AND ENGINE COOLING:ENGINE
NHTSA #15V275000Reported May 11, 2015 · Mack Trucks, Inc.
Potentially affected: 2,124 vehicles
Defect description
Mack Trucks, Inc. (Mack) is recalling certain model year 2011-2016 Mack MRU and LEU trucks manufactured June 25, 2010, to April 30, 2015, and 2015-2016 LR6 trucks manufactured from December 18, 2014 through March 6, 2015. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.
Safety consequence
If engine oil comes into contact with a hot surface, there could be an increased risk of a fire.
Manufacturer remedy
Cummins will notify owners on behalf of Mack, and Cummins service centers will administer the repairs which include securing the ends of the 90-degree elbow and reprogramming the electronic control module (ECM) with software that can adjust the engine output under misfire conditions to limit crankcase pressures. These repairs will be performed free of charge. The recall began on June 12, 2015. Owners may contact Mack customer service at 1-800-528-6586 or Cummins Inc. at 1-800-343-7357. Mack's number for this recall is SC0391.
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.
Other Mack LR6 model years
Check your 2016 Mack LR6 VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Mack LR6 at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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