Mack LR recalls by model year

Reported: 2015-10-26 (October 26, 2015) · Model years: 2010, 2011, 2012, 2013, 2014, 2015, 2016

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.

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 30, 2015. Owners may contact Cummins at 1-800-343-7357 or Mack customer service at 1-800-866-1177. Cummins' number for this recall is SC0396.

Reported: 2016-02-19 (February 19, 2016) · Model years: 2015, 2016

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 to owners on April 25, 2016. The recall began on June 7, 2016. Owners may contact Mack customer service at 1-610-709-2131. Mack's recall campaign number for this recall is SC0399.

Reported: 2017-04-18 (April 18, 2017) · Model years: 2015, 2016, 2017, 2018

Mack Trucks, Inc. (Mack) is recalling certain 2015-2018 LR and 2011-2018 TerraPro (LEU and MRU) trucks. The alternator cable may be insufficiently thick to handle the current, and, as a result, may overheat.

Consequence: If the alternator cable overheats, it would increase the risk of a fire.

Remedy: Mack will notify owners, and dealers will replace the alternator cable, free of charge. The recall began on June 16, 2017. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0407.

Reported: 2018-11-15 (November 15, 2018) · Model years: 2019

Mack Trucks, Inc. (Mack) is recalling certain 2019 Mack Granite (GR), LR, and TerraPro (TE) trucks, equipped with Bridgestone M854 tires with DOT date codes 2418-2518, Bridgestone M860A tires with DOT date code 2518 or Bridgestone M864 tires with DOT date codes 2318-2418, all of size 425/65R22.5. The sidewall steel body cords may be exposed, possibly causing unexpected, rapid air loss while driving. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 119, "New Pneumatic Tires - Other than Passenger Cars."

Consequence: Rapid tire air loss can increase the risk of a crash.

Remedy: Mack will notify owners, instructing them to take their vehicles to Bridgestone Tire or Mack truck service centers for inspection and replacement, as necessary, free of charge. The recall began December 19, 2018. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0412.

Reported: 2021-04-26 (April 26, 2021) · Model years: 2019, 2020

Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil.

Consequence: The internal bearings may fail without sufficient lubrication, causing steering lock-up and increasing the risk of a crash.

Remedy: Dealers will replace the transfer case, free of charge. Owner notifications letters were mailed on May 12, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0424.

Reported: 2021-07-27 (July 27, 2021) · Model years: 2021

Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite, LR, and TerraPro vehicles. The rear drive axle may have the incorrect type of brake cam installed, which could result in inoperative rear axle brakes.

Consequence: Inoperative rear axle brakes can increase the distance required to stop, increasing the risk of a crash.

Remedy: Dealers will inspect the brake cams, and incorrect brake cams will be replaced, along with brake shoes, hardware, and wheel seals, as necessary, free of charge. Owner notification letters were mailed on August 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0427.

Reported: 2021-11-03 (November 3, 2021) · Model years: 2021

Mack Trucks, Inc. (Mack) is recalling certain 2021 Granite and LR vehicles. A machining defect may cause pressure to build in the power steering pump and break the shaft seal, resulting in a loss of power steering assist.

Consequence: A loss of power steering assist increases the risk of a crash.

Remedy: Dealers will replace the power steering pump, free of charge. Owner notification letters were mailed on December 10, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0432.

Reported: 2022-06-07 (June 7, 2022) · Model years: 2021, 2022

Mack Trucks, Inc. (Mack) is recalling certain 2021-22 Granite, Anthem, LR, Pinnacle, and Terrapro tractor trailers. The steering gears may have been assembled incorrectly, which can cause the gear to fracture.

Consequence: A fractured steering gear can cause a loss of steering control, increasing the risk of a crash.

Remedy: Dealers will replace the steering gear, free of charge. Owner notification letters were mailed on July 29, 2022. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0437.

Reported: 2023-07-03 (July 3, 2023) · Model years: 2023, 2024

Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 LR garbage trucks. The wiper arm retention nuts may be loose, stripping, and causing the windshield wipers to fail.

Consequence: Inoperative windshield wipers can reduce visibility, increasing the risk of a crash.

Remedy: Dealers will inspect, tighten the retention nuts, and replace the windshield wiper arms as necessary, free of charge. Owner notification letters were mailed August 22, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0445.

Reported: 2023-11-22 (November 22, 2023) · Model years: 2023, 2024

Mack Trucks, Inc. (Mack) is recalling certain 2023-2024 GR, AN, LR, and Terrapro vehicles. The engine may not return to idle within 2 seconds if the accelerator pedal position sensor becomes disconnected. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 124, "Accelerator Control Systems."

Consequence: An engine that does not return to idle quickly enough can cause a loss of vehicle control, increasing the risk of a crash.

Remedy: Mack will replace the throttle pedal and update the vehicle software, free of charge. Owner letters were mailed February 27, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0455.

Reported: 2023-05-02 (May 2, 2023) · Model years: 2024

Mack Trucks, Inc. (Mack) is recalling certain 2024 LR electric garbage trucks, equipped with electric horns. The circuit connecting the horn button to the horn is missing, making the horn inoperative.

Consequence: A vehicle with an inoperative horn cannot alert other drivers, increasing the risk of a crash.

Remedy: Dealers will add the necessary circuits to connect the horn button to the horn, free of charge. Owner notification letters were mailed June 20, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC443.

Reported: 2023-07-27 (July 27, 2023) · Model years: 2024

Mack Trucks, Inc. (Mack) is recalling certain 2024 LR garbage trucks. The reinforcing floor welds may be missing from around the passenger seat pedestal, reducing floor strength.

Consequence: The pedestal may buckle during a crash, preventing the passenger seat from properly restraining a passenger.

Remedy: Dealers will inspect and add welds as necessary, replace the missing floor welds, free of charge. Owner notification letters were mailed September 12, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0446.

Reported: 2023-10-24 (October 24, 2023) · Model years: 2024

Mack Trucks, Inc. (Mack) is recalling certain 2024 LR vehicles. The fasteners that connect the power steering assist cylinder to steering arm may be loose or missing.

Consequence: The power steering assist cylinder may separate from the steering arm, causing a loss of vehicle control and increasing the risk of a crash.

Remedy: Owners are advised not to drive their vehicles until the repair has been performed. Dealers will inspect and tighten the steering gear fasteners and install a new cotter pin, free of charge. Owner notification letters are expected to be mailed December 15, 2023. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0451.

Reported: 2024-03-27 (March 27, 2024) · Model years: 2024, 2025

Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 LR natural gas vehicles. The methane detector may be inoperative due to a missing fuse.

Consequence: An inoperative methane detector can fail to detect a gas leak, increasing the risk of a fire or injury.

Remedy: Dealers will install a fuse, free of charge. Owner notification letters were mailed April 10, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0461.

Reported: 2024-07-02 (July 2, 2024) · Model years: 2025

Mack Trucks, Inc. (Mack) is recalling certain 2025 LR, Granite, and Pinnacle vehicles equipped with Composilite EXS20 steerable lift axle suspension assemblies. The tie rod assembly ball stud could have been improperly heat treated and can fail.

Consequence: The ball stud can separate from the vehicle becoming a road hazard, increasing the risk of a crash.

Remedy: Dealers will inspect and replace the tie rod end assemblies as necessary, free of charge. Owner notification letters were mailed July 15, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0468.