Service bulletin CBR 2171-11 202511
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service bulletin |
|---|---|
| NHTSA id | 11026025 |
| Published by NHTSA | 2025-12-03 |
| Manufacturer's number | CBR 2171-11 202511 |
| Manufacturer's date | 2025-11-22 |
| NHTSA component | ENGINE; ELECTRICAL SYSTEM |
NHTSA's summary
CBR - Mack Temperature Sensor Troubleshooting Guide
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
Components
Electrical system, Engine
| MACK ANTHEM (AN) | 2016 to 2017 |
|---|---|
| MACK ANTHEM (AN) | 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MACK CHU | 2014 to 2018 |
| MACK CXU | 2014 to 2018 |
| MACK GRANITE (GR) | 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GRANITE (GU) | 2014 to 2016 |
| MACK GRANITE (GU) | 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it) |
| MACK LEU | 2014 to 2017 |
| MACK LR | 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 |
| MACK PINNACLE (PI/PN) | 2016 |
| MACK PINNACLE (PI/PN) | 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 25V382000 | 2025-06-10. ELECTRICAL SYSTEM:12V/24V/48V BATTERY |
|---|---|
| 25V256000 | 2025-04-17. ENGINE AND ENGINE COOLING:ENGINE:DIESEL |
| 24V792000 | 2024-10-23. ELECTRICAL SYSTEM:SOFTWARE; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE |
| 2024194 | 2024-03-27. Electrical |
| 24V232000 | 2024-03-27. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS |
| 2023630 | 2023-11-22. Electrical |
| 2023588 | 2023-10-31. Engine |
| 23V731000 | 2023-10-31. ENGINE |
| 23V310000 | 2023-05-02. ELECTRICAL SYSTEM:HORN |
| 2023021 | 2023-01-24. Electrical |
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.
| TSB M-371-005A 202609 | 2026-10-02. Service bulletin. Jumper Harness Repair for Version 4 Mack Trucks |
|---|---|
| TSB M-913-001 202609 | 2026-10-02. Service bulletin. Parker engine-mounted hydraulic pump service bulletin. |
| TSB M-373-003 202609 | 2026-10-02. Service bulletin. Power Cable Alternator Replacement |
| CBR 2590-3 202609 | 2026-10-02. Service bulletin. Instrument Cluster Going Dark |
| CBR 2496-18 202609 | 2026-10-02. Service bulletin. The purpose of this CBR is outline the interim software solution for PR(4) and AN(4). |
| CBR 2483-6 202609 | 2026-10-01. Service bulletin. Diagnostic instructions for CAN network communication issues. |
| S4533 202608 | 2026-09-02. Service campaign. Mack Trucks has determined that certain AN model trucks equipped with an MP8 Turbo Compound (TC) engine may experience TC Double Idler Gear failure due to incorrect bearing preload. TC units within this population are suspected to be affected, which could result in failure and potential engine damage. For the affected vehicle population, please follow the instructions provided below to remove the TC unit, replace the double idler gear with a new one, and reinstall the TC unit. |
| CBR 2597 202608 | 2026-09-01. Service bulletin. The purpose of this CBR is to provide steps on how to correct a customer complaint of "Service Required" message for air filter replacement appears in the cluster. There may be no option in PTT or the cluster to reset the air filter service interval. |
| CBR 2596 202608 | 2026-09-01. Service bulletin. The purpose of this CBR is to provide steps on how to correct a customer complaint of a no crank/engine start condition. |
| CBR 159 202608 | 2026-09-01. Service bulletin. Mack Trucks Equipped With A Cummins Engine - Engine Preheat Icon Does Not Illuminate In The Instrument Cluster (IC) During Engine Pre-heat (Intake Air Heater) Operation - Vehicles With 2018Instrument Cluster Update, Model Year2018 And Newer |