Mack Lr warranty claim denied?

If your dealer just denied a warranty claim on your Mack LR, you're not alone, and the denial may not be the final word. Manufacturers are required to file service communications with NHTSA when they identify recurring problems, and for the Mack LR (model years 2010–2025), 399 such communications have been filed — including 4 formal warranty extensions covering components like the Fuel Control Module, Pre-SCR NOx Sensor, and EGR Cooler. Other documented bulletins describe issues such as oil leaks from the clutch/flywheel housing, engine block compatibility concerns, timing gear plate repairs, and AMT-F diagnostic trouble codes.

Denials sometimes happen because the dealer didn't connect your symptoms to an existing manufacturer bulletin or extended coverage period. When a documented defect matches what you're experiencing, there may be grounds to request a second review.

ClaimRight offers a free assessment to compare your symptoms and paperwork against the manufacturer's own filed communications for your vehicle. There's no cost unless we help you move your claim forward. Understanding what's been documented is the first step toward knowing your options.