Mack Lr Recalls & Complaints by Model Year
NHTSA lists 15 safety recalls and 1 owner complaint across 16 model years of the Mack Lr (2010–2025). The most-complained-about year is 2019.
Pick your Mack Lr model year
| Model year | Recalls | Complaints |
|---|---|---|
| 2025 Mack Lr | 2 | 0 |
| 2024 Mack Lr | 6 | 0 |
| 2023 Mack Lr | 2 | 0 |
| 2022 Mack Lr | 1 | 0 |
| 2021 Mack Lr | 3 | 0 |
| 2020 Mack Lr | 1 | 0 |
| 2019 Mack Lr | 2 | 1 |
| 2018 Mack Lr | 1 | 0 |
| 2017 Mack Lr | 1 | 0 |
| 2016 Mack Lr | 3 | 0 |
| 2015 Mack Lr | 3 | 0 |
| 2014 Mack Lr | 1 | 0 |
| 2013 Mack Lr | 1 | 0 |
| 2012 Mack Lr | 1 | 0 |
| 2011 Mack Lr | 1 | 0 |
| 2010 Mack Lr | 1 | 0 |
What Mack Lr owners complain about
Across all model years, owners have filed 1 complaint with NHTSA. The 2019 model year has the most, with 1.
All Mack Lr recalls (15)
Every NHTSA safety campaign that lists a Mack Lr, most recent first, with the model years each one covers.
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Tie rod assembly (steering)
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.
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…
Model years: 2025
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Fuses and circuit breakers (electrical system)
Mack Trucks, Inc. (Mack) is recalling certain 2024-2025 LR natural gas vehicles. The methane detector may be inoperative due to a missing fuse.
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.
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Vehicle speed control
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…
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…
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Steering Do not drive
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.
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…
Model years: 2024
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Structure
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.
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.…
Model years: 2024
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Linkages (visibility)
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.
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…
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Horn (electrical system)
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.
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…
Model years: 2024
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Steering
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.
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.
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Pump (steering)
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.
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…
Model years: 2021
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Service brakes, air
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.
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,…
Model years: 2021
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Steering
Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 LR vehicles. The steering transfer case may have an insufficient amount of oil.
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.
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Tires
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…
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.…
Model years: 2019
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Alternator/generator/regulator (electrical system)
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.
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…
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Driveshaft (power train)
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.
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…
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Turbo/supercharger (engine and engine cooling)
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…
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…
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- Gu6 complaints
- CH6005 complaints
- Cxu5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.