2014 MACK GRANITE (GU) — Problems, Recalls & Safety Data

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Overview of the 2014 MACK GRANITE (GU)

The 2014 MACK GRANITE (GU) has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 18 recall campaigns affecting this vehicle, covering issues with SUSPENSION:FRONT:HUB, POWER TRAIN:DRIVELINE:DRIVESHAFT, SERVICE BRAKES, AIR:DISC:CHAMBER. 14 technical service bulletins have been issued by Mack Trucks, Inc. for this model year.

Recalls for the 2014 MACK GRANITE (GU)

NHTSA has recorded 18 recalls for the 2014 MACK GRANITE (GU), potentially affecting up to 162,190 vehicles.

Recall 16V929000 — SUSPENSION:FRONT:HUB

February 16, 2017 | 200 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain model year 2012, 2014-2015 and 2017 Granite (GU), 2012-2017 Pinnacle (CHU, CXU), and 2013-2015 and 2017 Titan (TD) trucks manufactured January 7, 2011, to September 29, 2016. The affected vehicles were built with front wheel hubs that cannot support the gross axle weight rating of the front axle.

Consequence: Overloaded front wheel hubs can result in premature failure of the hubs, bearings, and the related components, which can cause the front hub assembly to separate from the front axle. Because of this, the driver may lose control of the vehicle or parts may be dropped on the road, increasing the risk of a crash.

Remedy: Mack will notify owners, and dealers will replace the hub assemblies, free of charge. The recall began on February 16, 2017. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0406.

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Recall 16V099000 — POWER TRAIN:DRIVELINE:DRIVESHAFT

June 7, 2016 | 33,981 vehicles affected

Defect: 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 may loosen.

Consequence: 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...

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Recall 15V804000 — SERVICE BRAKES, AIR:DISC:CHAMBER

January 27, 2016 | 679 vehicles affected

Defect: 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...

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Recall 15V690000 — POWER TRAIN:AXLE ASSEMBLY

December 9, 2015 | 8 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain model year 2014 Granite (GU) trucks manufactured January 1, 2013, to October 16, 2013, and equipped with certain drive axles manufactured by Marmon-Herrington. The affected axles are equipped with hex nuts on the flange yoke that may not have been properly tightened.

Consequence: If the hex nuts are not tightened to specification, the driveshaft may disconnect from the drive axle, resulting in a loss of propulsion and increasing the risk of a crash.

Remedy: Mack will notify owners, and dealers will inspect the hex nut, tightening it to proper torque, free of charge. The recall is expected to begin on November 30, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for...

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Recall 15V702000 — ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

October 22, 2015 | 2,571 vehicles affected

Defect: 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...

Consequence: 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...

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Recall 15V528000 — SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK

October 15, 2015 | 84 vehicles affected

Defect: 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 requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air...

Consequence: 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.

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Recall 15V522000 — ELECTRICAL SYSTEM:WIRING

September 30, 2015 | 62 vehicles affected

Defect: Mack Trucks, Inc. (Mack) is recalling certain model year 2013 and 2015 Titan (TD), model year 2014 and 2015 Pinnacle (CHU), and model years 2009-2010, 2012, and 2014-2016 Granite (GU) trucks. The chassis harness and air lines may not be properly clipped to the crossmember, which can allow the cables and air lines to fall and get twisted in the...

Consequence: If the electrical cables and air lines were to fall and get tangled in the driveline, it could affect the electrical system and braking system, increasing the risk of a vehicle crash.

Remedy: Mack will notify owners, and dealers will inspect the vehicles and properly clip the harness and air lines, free of charge. The recall began on September 30, 2015. Owners may contact Mack customer service at 1-800-528-6586. Mack's number for this...

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Recall 15V522000 — SERVICE BRAKES, AIR:SUPPLY:HOSES, LINES/PIPING, AND FITTINGS

September 30, 2015 | 62 vehicles affected

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Recall 14V208000 — EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

July 25, 2014 | 44,047 vehicles affected

Defect: 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...

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Recall 14V078000 — ELECTRICAL SYSTEM

April 24, 2014 | 70,208 vehicles affected

Defect: 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, 2014 to include certain model year 2008-2009 and 2013-2014 CHU,...

Consequence: 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...

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Recall 13V493000 — STEERING

December 12, 2013 | 535 vehicles affected

Defect: Mack Trucks is recalling certain model year 2014 CXU and GU model vehicles manufactured May 10, 2013, through June 12, 2013. The upper and lower steering shaft pinch bolts may have not been torqued to specification. This may cause the steering shaft to come loose.

Consequence: A loose steering shaft would result in a loss of steering control, increasing the risk of a crash.

Remedy: Mack Trucks will notify owners, and dealers will inspect the steering shaft pinch bolts and retorque them as necessary, free of charge. The recall began on December 11, 2013. Mack's recall number is SC0372. Owners may contact Mack Trucks at...

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Recall 13V492000 — POWER TRAIN:AXLE HUBS

November 12, 2013 | 1,155 vehicles affected

Defect: 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.

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Recall 13V195000 — SERVICE BRAKES

September 30, 2013 | 5,203 vehicles affected

Defect: 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 pin may loosen and fall out causing a...

Consequence: 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...

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Recall 25V867000 — SERVICE BRAKES, AIR:DISC:CHAMBER

| 679 vehicles affected

Defect: 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.