2021 Mack Anthem (an)
Safety record from NHTSA: recalls, owner complaints, investigations and service bulletins.
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Vehicles › Mack › Anthem (an) › 2021
These records cover every 2021 Mack Anthem (an). To see whether one car still needs a recall repair, decode its VIN or check it with NHTSA.
Recalls
5 recalls name the 2021 Mack Anthem (an). Newest first.
Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Mack MD, 2019-2025 Anthem, Granite, 2024 MD Electric, and 2025 Pinnacle trucks equipped with a passenger bench seat. The seat belt anchorage bracket may be improperly welded. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt…
Risk and remedy
Risk
An improperly welded seat belt anchorage bracket can detach during a crash, increasing the risk of injury.
Remedy
Dealers will install a reinforcement plate, free of charge. Owner letters were mailed January 21, 2026. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0485. Vehicle Identification Numbers (VINs) involved in this recall will be searchable on NHTSA.gov beginning October 13, 2025.
Mack Trucks, Inc. (Mack) is recalling certain 2020-2025 Anthem, Granite, TerraPro and Pinnacle vehicles, equipped with Bendix EC80 Advanced Electronic Control Units (ECU). Electrical noise and low signal to the power line carrier may cause the ECU to incorrectly process commands or stop working.
Risk and remedy
Risk
Safety systems that depend on the ECU (Automatic Traction Control, ABS, Electronic Stability Control, Active Cruise Control, and Collison Mitigation System) may have diminished or lost functionality, increasing the risk of a crash.
Remedy
Dealers will reprogram the ECU software, free of charge. Owner notification letters were mailed December 9, 2024. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0472.
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.
Risk and remedy
Risk
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.
Mack Trucks, Inc. (Mack) is recalling certain 2021-2022 Anthem, Granite, and Pinnacle vehicles. The hubcap compression spring can cause the hubcap to separate.
Risk and remedy
Risk
A separated hubcap can create a road hazard, increasing the risk of a crash.
Remedy
Dealers will remove the hubcap, free of charge. Owner notification letters were mailed June 30, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0425.
Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard…
Risk and remedy
Risk
A vehicle that drifts out of its lane increases the risk of a crash.
Remedy
Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423.
Owner complaints
2 complaints1 involved a crash2 deaths
What owners report most
Latest complaints
- Back over prevention › Warnings · Lane departure › Assist
Driver 1 stated: “I was traveling in the right lane and going straight. The other truck was on the right shoulder. I was attempting to merge into the middle lane to provide additional space for the truck on the right shoulder. However, there was another vehicle in the middle lane, so I was unable…
Driver 1 stated: “I was traveling in the right lane and going straight. The other truck was on the right shoulder. I was attempting to merge into the middle lane to provide additional space for the truck on the right shoulder. However, there was another vehicle in the middle lane, so I was unable to merge. I subsequently struck the truck that was stopped on the right shoulder.” Driver 2 stated: “We were on the right shoulder because the truck was experiencing mechanical issues. We were then struck from behind.” Investigation Findings The investigation revealed that Vehicle 1 (V1) and Vehicle 2 (V2) were traveling on the New Jersey Turnpike (NJTP) near milepost 99.5 in Elizabeth County. Vehicle 2 was stopped on the right shoulder due to mechanical issues. Driver 1 failed to maintain proper directional control of Vehicle 1 and subsequently struck the rear of Vehicle 2, which was stopped on the shoulder. A passenger in Vehicle 2 complained of neck and back pain but declined medical attention at the scene. Both vehicles were towed from the scene by Highway Towing, AIS 208.
- Fuel/propulsion system
The secondary fuel filter housing broke causing the truck to shut off while driving.
Service bulletins
Technical service bulletins and other communications the manufacturer sent dealers about this vehicle. Ask a dealer for the full document by its number.
- 11010857Vehicles may present with oil leak coming from the clutch/flywheel housing and observation of burned clutch smell or clutch slipping. These symptoms can be mistaken as a crankshaft rear main seal leak, when the actual cause is the crankshaft adaptor O-ring.
- 11009705CBR - Mack Chassis - Timing Gear Plate Repair
- 11008382CBR: Vehicles Equipped With A Lift Axle - Wheel Speed Fault Code SPN 793, SPN 794 Set When Axle Is Up
- 11008380CBR: Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
- 11008377CBR: Automated Manual Transmission (AMT) Model D or F (mDrive and I-Shift, AMT-D, AMT-F) - Transmission Oil Leakage From Transmission Input Shaft Seal Or Output Shaft Seal - US10 And Newer Emissions, Common Model Years 2010 And Newer
- 11008374CBR: US17 GHG Common Rail Fuel System Component Electrical Faults - Model Year 2017 To 2024
- 11008368CBR: The procedure to eliminate the Mack Chassis "Air Restriction Light On" seen in the cluster is to confirm that the parameter YYT is set to "Enable" with Premium Tech Tool.
- 11008366CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
- 11006927CBR: Diagnostic Trouble Code (DTC) U010187- Lost Communication With TECU
- 11006925CBR: 11L, 13L, And 16L Engine Oil Analysis Specifications - US10 And Newer Emissions
- 11006924CBR: Overhead Wear Overview - Model Year2018 To Current (Common Rail Fuel System ONLY)
- 11006923CBR: Mack chassis with an mDRIVE transmission, there have been reports of complete shift assemblies and TECUs being replaced due to technicians being unable to pinpoint the source of the air leak.
- 11005412CBR: Mack Chassis - Day Cab Glass Breakage
- 11005411CBR: Drivers Information Display (DID)Inoperative After Cluster Replacement And Programming
- 11005410CBR: Telematics Gateway (TGW) Connect Ability Issues
- 11005407CBR: Mack Anthem (AN) And Pinnacle (PI) -Bendix ABS Fault SPN 807 FMI 13 Blink code 19-4
- 11003043CBR - Mack Chassis - Day Cab Glass Breakage
- 11003042CBR - Accelerator Pedal: Inspection Instructions
- 11003037CBR - Drivers Information Display (DID) Inoperative/Goes Blank During Vehicle Operation
- 11003035CBR - Drivers Information Display (DID) Inoperative After Cluster Replacement And Programming
- 11000836CBR: ZF/TRW Steering Gear Side Cover Leak
- 11000831CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head. A new and improved fuel galley plug has been developed to resolve this issue.
- 10253817CBR: Chassis Equipped With VECU5 Active Datalink/Communication Faults For Multiple Modules; ABS And SRS Communication Faults
- 10253809CBR: Turbo Compound 2nd Generation - EGR And / Or DPF Diagnostic Trouble Codes (DTC), Diagnostic And Repair Information.
- 10253807CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
- 10253804CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
- 10252311CBR: After cluster replacement and programming, the Driver Information Display (DID) may not function as designed.
- 10252308CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
- 10251333CBR -Telematics Gateway (TGW) Connect Ability Issues
- 10251331CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
- 10251329CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
- 10251328CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
- 10249553CBR: TGW Will Not Connect After SIM Card Replacement
- 10249551CBR: Frame Or Cab Lean
- 10248115Fleet Campaign: For certain MDI Mack Trucks an updated adaptive cruise software has been developed.
- 10248101CBR: For vehicles equipped with an 11L engine, the plastic saddle bracket holding the a/c line on the left side of the engine may move excessively and rub the area where it secures the line.
- 10246099Parts Sales and Marketing Bulletin: Mack Trucks is excited to announce an additional year warranty program on REMACK AMT mDRIVE Complete Transmissions. This extended warranty of 3 years or 350,000 miles on the transmission will be applicable when dealer installed, required parts are installed and is registered via eService.
- 10246086TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The new HD through shaft is an upgrade over the current standard shaft and can now be used as a replacement part instead of the standard shaft. The new HD shaft has a new design to increase strength, longevity and life over the standard shaft.
- 10244808CBR: Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
- 10244803CBR: Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018.
Every Mack Anthem (an) model year
Bars are owner complaints, dots mark years with recalls. Select a year to open its report.