2020 MACK ANTHEM (AN) — Problems, Recalls & Safety Data
N/A
Safety Rating
4
Owner Complaints
6
Recalls
21
Service Bulletins
0
Investigations
Overview of the 2020 MACK ANTHEM (AN)
The 2020 MACK ANTHEM (AN) has received a total of 4 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 7 recall campaigns affecting this vehicle, covering issues with SEAT BELTS:FRONT:ANCHORAGE, ELECTRICAL SYSTEM:SOFTWARE, SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE. 21 technical service bulletins have been issued by Mack Trucks, Inc. for this model year. The most commonly reported problems involve the Air Bags (1 complaint), Exterior Lighting (1 complaint), and Service Brakes (1 complaint).
Recalls for the 2020 MACK ANTHEM (AN)
NHTSA has recorded 7 recalls for the 2020 MACK ANTHEM (AN), potentially affecting up to 139,103 vehicles.
Recall 25V666000 — SEAT BELTS:FRONT:ANCHORAGE
| 15,841 vehicles affected
Defect: 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 Assembly Anchorages."
Consequence: 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...
View full details →Recall 24V792000 — ELECTRICAL SYSTEM:SOFTWARE
| 59,338 vehicles affected
Defect: 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.
Consequence: 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.
View full details →Recall 24V792000 — SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE
| 59,338 vehicles affected
Defect: 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.
Consequence: 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.
View full details →Recall 21V233000 — ELECTRONIC STABILITY CONTROL (ESC):CONTROL MODULE:SOFTWARE
| 557 vehicles affected
Defect: 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 (FMVSS) number 136, "Electronic Stability Control Systems on...
Consequence: 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.
View full details →Recall 19V896000 — STEERING:LINKAGES:DRAG:LINK:CONNECTION
| 80 vehicles affected
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2020 Anthem (AN), Granite (GR), and Pinnacle (PI) vehicles. The castle nuts and cotter pins used to connect the steering drag link to the pitman arm and steering arm may have not been correctly installed, potentially causing separation of the drag link.
Consequence: If the drag link separates, loss of steering control my occur, increasing the risk of a crash.
Remedy: Mack will notify owners, and dealers will inspect the drag link attachment points, repairing them, as necessary, free of charge. The recall began January 14, 2020. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is...
View full details →Recall 19V209000 — EXTERIOR LIGHTING
| 43 vehicles affected
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2020 Anthem and Pinnacle trucks. The conspicuity reflectors at the back of the cab may be blocked by the exhaust system. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Assoc. Equipment."
Consequence: If the reflectors are blocked, the vehicle's visibility to other drivers may be reduced, increasing the risk of crash.
Remedy: Mack has notified owners, and dealers will install additional reflectors on the back of the cab, free of charge. The recall began April 10, 2019. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0418.
View full details →Recall 19V054000 — VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR
| 3,906 vehicles affected
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2019-2020 Mack Anthem, Granite, Pinnacle vehicles. The passenger side door down view mirror may detach from the door.
Consequence: If the mirror detaches from the door, the mirror may strike another vehicle or pedestrian, increasing the risk of injury or crash.
Remedy: Mack will notify owners, and dealers will properly attach the mirror, free of charge. The recall began March 19, 2019. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0416.
View full details →Owner Complaints for the 2020 MACK ANTHEM (AN)
4 complaints have been filed with NHTSA for the 2020 MACK ANTHEM (AN). Below is a breakdown by vehicle component.
| Component | Complaints | Crashes | Fires | Injuries | Deaths |
|---|---|---|---|---|---|
| Air Bags | 1 | 1 | 0 | 0 | 0 |
| Exterior Lighting | 1 | 0 | 0 | 0 | 0 |
| Service Brakes | 1 | 0 | 0 | 0 | 0 |
| Steering | 1 | 1 | 0 | 0 | 0 |
Most Recent Complaints
While driving on the Interstate I apparently lost control and hit a guardrail at approx 40-45mph. The impact stopped the truck causing severe damage to the vehicle the front right 1/2 of the vehicle including bumper, quarter panel with enough impact to break the front axle. I was found unconsious and spent 6 days in the hospital. I have fractures in my back and believe that possibly the airbag should have deployed? The vehicle is available at this time for inspection. I have sent notification to the manufacturer. The day prior to this accident the check ECU light came on, however it did turn off later that day. I
While driving on the Interstate I apparently lost control and hit a guardrail at approx 40-45mph. The impact stopped the truck causing severe damage to the vehicle the front right 1/2 of the vehicle including bumper, quarter panel with enough impact to break the front axle. I was found unconsious and spent 6 days in the hospital. I have fractures in my back and believe that possibly the airbag should have deployed? The vehicle is available at this time for inspection. I have sent notification to the manufacturer. The day prior to this accident the check ECU light came on, however it did turn off later that day. I
LED MARKER LAMPS ARE IN A SEALED UNIT WHICH ARE NOT SERVICEABLE ROADSIDE, LEADING TO LOW VISIBILITY UNDER CERTAIN LIGHTING AND APPROACH CONDITIONS TO OTHER VEHICLES. ALSO CREATES VIOLATIONS WHILE ON THE ROAD UNDER SECTION 393 AS THE DRIVER AND/ OR ROAD SERVICE VENDOR CANNOT SERVICE A PART WITHOUT RETURNING TO A DEALER OR STOCKING SUPPLIER. THIS IS DANGEROUS BOTH IN TRAVELING AND STATIONARY POSITIONS.
TL* THE CONTACT OWNS A 2020 MACK ANTHEM. THE CONTACT STATED THAT EACH TIME THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE MOVED FROM SIDE TO SIDE, THE WHEELS WOULD JUMP, AND THE HOOD ATTEMPTED TO OPEN. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE CONTACT STATED THAT THE VEHICLE WAS TAKEN TO NEXTRAN TRUCK CENTERS (2200 W LANDSTREET RD, ORLANDO, FL 32809, (407) 855-1200) WHERE THE DRUM, BRAKE LINE, AND BRAKE ADJUSTMENTS WERE COMPLETED. THE VEHICLE WAS REPAIRED. THE CONTACT ALSO STATED THAT THE VEHICLE WAS TAKEN ON THREE DIFFERENT OCCASIONS TO THE SAME DEALER FOR THE SAME FAILURE, BUT THE FAILURE RECURRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND PROVIDED CASE NUMBER: 12139296. THE FAILURE MILEAGE WAS APPROXIMATELY 28,000.
Safety Rating for the 2020 MACK ANTHEM (AN)
NHTSA has not yet tested the 2020 MACK ANTHEM (AN) in its New Car Assessment Program.
Technical Service Bulletins for the 2020 MACK ANTHEM (AN)
Mack Trucks, Inc. has issued 21 technical service bulletins (TSBs) for the 2020 MACK ANTHEM (AN). TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
S4548 202506 — STRUCTURE:BODY
Mack Trucks has determined that certain model year 2020 to 2022 Anthem trucks could experience excessive wear on the hood latch pins causing the hood to rattle during normal vehicle operation.
S4548 202506 — UNKNOWN OR OTHER
Mack Trucks has determined that certain model year 2020 to 2022 Anthem trucks could experience excessive wear on the hood latch pins causing the hood to rattle during normal vehicle operation.
CBR-2375 202405 — STEERING
CBR: ZF/TRW Steering Gear Side Cover Leak
S3837 202312 — FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
Fleet Campaign: For certain MDI Mack Trucks an updated adaptive cruise software has been developed.
S3837 202312 — SERVICE BRAKES, AIR
Fleet Campaign: For certain MDI Mack Trucks an updated adaptive cruise software has been developed.
KC-2116 Rev 9 — ENGINE AND ENGINE COOLING
Mack NOx Sensor Troubleshooting Guide - US10+OBD13 And Newer Emissions
SLM22-004 — STEERING
Service Literature Published and Released in April, 2022
KC-401 — ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL
Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
KC-275 — ENGINE AND ENGINE COOLING
(Back Office Only) Vehicles Equipped With A Turbo Compound Engine - Report Of Frequent Air Compressor Cycling. Secondary Air System Air Pressure Decreases Slowly When Engine Is At Low Idle - US17+OBD16 And Newer Emissions, Model Year 2018 And Newer
KC-2137 — STRUCTURE:BODY:DOOR
Mack Chassis - Anthem (AN) Water Leak Around Door
Showing 10 of 21 technical service bulletins.
NHTSA Investigations for the 2020 MACK ANTHEM (AN)
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK ANTHEM (AN)
- 2016 MACK ANTHEM (AN) — 0 complaints
- 2017 MACK ANTHEM (AN) — 0 complaints
- 2018 MACK ANTHEM (AN) — 0 complaints
- 2019 MACK ANTHEM (AN) — 2 complaints
- 2020 MACK ANTHEM (AN) (current)
- 2021 MACK ANTHEM (AN) — 1 complaint
- 2022 MACK ANTHEM (AN) — 0 complaints
- 2023 MACK ANTHEM (AN) — 0 complaints
- 2024 MACK ANTHEM (AN) — 5 complaints
- 2025 MACK ANTHEM (AN) — 0 complaints
Other MACK Models
- MACK MACK — 35 total complaints
- MACK CXU612 — 12 total complaints
- MACK CX613 — 10 total complaints
- MACK GRANITE (GR) — 10 total complaints
- MACK CH600 — 9 total complaints
- MACK GU — 9 total complaints
- MACK RD — 8 total complaints
- MACK CXU — 7 total complaints