SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2009-2015 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to
... overheat.Read moreConsequence
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated in February 23, 2026. Owners may contact Mack's customer
... service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.Read more679 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2009-2015 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to
... overheat.Read moreConsequence
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated in February 23, 2026. Owners may contact Mack's customer
... service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.Read more679 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2009-2015 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to
... overheat.Read moreConsequence
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated in February 23, 2026. Owners may contact Mack's customer
... service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.Read more679 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2009-2015 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to
... overheat.Read moreConsequence
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated in February 23, 2026. Owners may contact Mack's customer
... service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.Read more679 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain 2009-2015 Granite (GU) trucks. Vehicles remedied under Recall 15V804 (SC0398) may have had incorrect parts installed during subsequent repairs. The incorrect parts may cause a brake imbalance between the steer and drive axle brakes and the rear brakes to
... overheat.Read moreConsequence
Overheated brakes may cause a tire blowout or fire, increasing the risk of a crash.
Remedy
Dealers will inspect and replace the brake chambers as necessary, free of charge. Interim letters notifying owners of the safety risk were mailed February 3, 2026. Additional letters will be sent once the final remedy is available, anticipated in February 23, 2026. Owners may contact Mack's customer
... service at 1-800-866-1177. Mack's number for this recall is SC0491. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning December 22, 2025. Owners who received a remedy under Recall 15V804 (SC0398) must have the new remedy completed.Read more679 vehicles affected
Manufacturer: Mack Trucks, Inc.
POWER TRAIN:DRIVELINE:DRIVESHAFT
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain model year 2012-2016 Granite (GU), Pinnacle (CHU, CXU), TerraPro (LEU, MRU), Titan (TD), and LR trucks manufactured from September 1, 2011, through September 8, 2015. The cap nut that retains the interaxle driveshaft yoke to the rear axle input shaft ma
... y loosen.Read moreConsequence
If he cap nut loosens and falls off, the yoke can separate from the axle input shaft and allow the drive shaft to disconnect, increasing the risk of a crash.
Remedy
Mack will notify owners, and dealers will replace the cap nut. The input shaft threads will be inspected for damage. Any damaged input shaft will be replaced. These repairs will be performed free of charge. An interim notice was sent to owners on April 25, 2016. The recall began on June 7, 201
... 6. Owners may contact Mack customer service at 1-610-709-2131. Mack's recall campaign number for this recall is SC0399.Read more33,981 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:DISC:CHAMBER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain model year 2010-2016 Granite 4X2 trucks manufactured September 17, 2009, to July 31, 2015. Due to a brake imbalance between the steer and drive axle brakes, the rear brakes may overheat.
Consequence
If the rear brakes overheat there would be an increased risk of a tire blowout or a wheel-end fire.
Remedy
Mack will notify owners, and dealers will replace either the brake chambers on the steer axles or the drive axles to correct the imbalance, free of charge. The recall began on January 27, 2016. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this recall is SC0398.
679 vehicles affected
Manufacturer: Mack Trucks, Inc.
ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain model year 2010-2016 Granite (GU), LR, and TerraPro (LEU, MRU) trucks manufactured November 17, 2009 to October17, 2015. The affected trucks have engines with a turbocharger oil supply line that may contact or interfere with the turbocharger inlet elbow,
... clean air intake clamp, or the air fuel control tube, and result in an oil leak.Read moreConsequence
If the turbocharger oil supply line oil leaks in the proximity of the engine exhaust manifold there would be an increased risk of a fire.
Remedy
Cummins will notify owners on behalf of Mack, and dealers will inspect for oil supply line interference or damage, eliminating the interference and replacing the oil supply line, as necessary, free of charge. The recall is expected to begin November 30, 2015. Owners may contact Cummins at 1-800-34
... 3-7357 or Mack customer service at 1-800-866-1177. Cummins' number for this recall is SC0396.Read more2,571 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK
Defect Description
Mack Trucks, Inc. (Mack) is recalling certain model year 2011-2016 Granite (GU) trucks manufactured September 24, 2011, to July 1, 2015. The affected trucks may be equipped with an air brake system reservoir that does not have a sufficient volume. As such, these vehicles fail to comply with the re
... quirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."Read moreConsequence
If the air brake system reservoir has as insufficient volume, braking performance may be affected, increasing the risk of a crash.
Remedy
Mack will notify owners, and dealers will add additional air brake reservoir volume, free of charge. The recall began on October 15, 2015. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0394.
84 vehicles affected
Manufacturer: Mack Trucks, Inc.
EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT
Defect Description
Mack Trucks Inc. (Mack) is recalling certain model year 2010-2014 CHU, CXU, and MRU, 2007 CT and CV, 2008-2014 GU, and 2011-2014 LEU, and TD trucks manufactured February 28, 2006, through November 8, 2013, and equipped Hamsar Electronic Flasher. The hazard warning lights may fail.
Consequence
A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
Remedy
Mack will notify owners, and dealers will replace the electronic flasher unit, free of charge. The recall will begin by mid-June 2014. Interim letters went out to owners on June 23, 2014. The recall began on July 25, 2014. Owners may contact Mack customer service at 1-866-298-6586. Mack's numbe
... r for this recall is SC0379.Read more44,047 vehicles affected
Manufacturer: Mack Trucks, Inc.
ELECTRICAL SYSTEM
Defect Description
Mack Trucks, Inc. (Mack) notified the agency on February 20, 2014, that they are recalling certain model year 2010-2012 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. While continuing to research the scope of the issue, Mack expanded the recall on November 18, 2
... 014 to include certain model year 2008-2009 and 2013-2014 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. Having completed its investigation, Mack once again expanded the recall during February 2015 to include an additional 53,780 vehicles from model years 2007 and 2015. The recall now covers model year 2007-2015 includes CHU, CXU, GU and TD vehicles produced October 13, 2006, through October 3, 2014. In the affected vehicles, the Electronic Power Distribution Module (EPDM) may be contaminated from water leaks in, and around, the windshield. If exposed to water leaks, contaminants such as road salts may deposit on the EPDM.Read moreConsequence
Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
Remedy
Mack has notified owners, and dealers will inspect the EPDM. If contamination has occurred, dealers will replace the EPDM and address the leak, free of charge. Owners of model year 2010-2012 CHU, CXU, GU and TD vehicles were initially notified April 24, 2014. Owners affected by the recall expansio
... ns were notified in February 2015. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0375.Read more70,208 vehicles affected
Manufacturer: Mack Trucks, Inc.
POWER TRAIN:AXLE HUBS
Defect Description
Mack Trucks is recalling certain model year 2013-2014 CHU, CXU, GU, LEU, and MRU vehicles manufactured with pro-torque axle spindle nuts from August 28, 2012, through August 16, 2013. The pro-torque nut may not have been installed correctly, which may result in a loosening of the nut.
Consequence
If the nut comes loose, the hub assembly may separate from the vehicle, increasing the risk of a crash.
Remedy
Mack Trucks will notify owners, and dealers will inspect and repair the vehicles, as necessary, free of charge. The recall began on November 12, 2013. Mack's recall number is SC0371. Owners may contact Mack Trucks at 1-336-393-2000.
1,155 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES
Defect Description
Mack Trucks, Inc. is recalling certain model year 2013-2014 CHU, CXU, GU, MRU, and LEU trucks manufactured July 16, 2012, through march 18, 2013 and equipped with drum brakes. The clevis pin for the brake slack adjuster may be missing a cotter pin. If the cotter pin is not installed, the clevis pi
... n may loosen and fall out causing a loss of brake function on the affected wheel.Read moreConsequence
A loss of brake function at one wheel will lead to increased stopping distances and pulling to the left or right when braking, which may increase the risk of a crash.
Remedy
Mack Trucks, Inc. will notify owners, and dealers will inspect the brake slack adjusters and install the brake hardware, as necessary, free of charge. An interim was mailed to owners on June 20, 2013. A second notice was mailed to owners on September 30, 2013. Owners may contact Mack Trucks at 1
... -800-528-6586. Mack Trucks' recall campaign number is SC0370.Read more5,203 vehicles affected
Manufacturer: Mack Trucks, Inc.
SERVICE BRAKES, AIR:SUPPLY:CHECK VALVE
Defect Description
MACK IS RECALLING CERTAIN MODEL YEAR 2012-2013 GU, MANUFACTURED FROM DECEMBER 2, 2010, THROUGH JANUARY 18, 2012, AND EQUIPPED WITH BENDIX ATR-6 TRACTION RELAY VALVES. IN EXTREMELY COLD CONDITIONS, THESE BENDIX RELAY VALVES MAY POTENTIALLY DEVELOP INTERNAL LEAKAGE. INTERNAL LEAKAGE CAN LEAD TO AIR
... PRESSURE BEING DELIVERED TO AFFECTED PRIMARY OR SECONDARY BRAKE CAUSING CONTINUOUS BRAKE APPLICATION.Read moreConsequence
INADVERTENT BRAKE APPLICATION CAN CAUSE THE BRAKES TO OVERHEAT AND LEAD TO A FIRE. INADVERTENT BRAKE APPLICATION CAN CAUSE THE WHEELS TO LOCK-UP LEADING THE DRIVER TO LOSE CONTROL OF THE VEHICLE, INCREASING THE RISK OF A CRASH.
Remedy
MACK WILL NOTIFY OWNERS, AND PROVIDE A TEMPORARY REPAIR UNTIL BENDIX DEVELOPS A PERMANENT REMEDY. THIS SERVICE WILL BE PERFORMED FREE OF CHARGE. OWNERS MAY CONTACT MACK TRUCKS AT 1-800-866-1177.
2 vehicles affected
Manufacturer: MACK TRUCKS, INC