Service bulletin EC0023 M 202307
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 | 10240207 |
| Published by NHTSA | 2023-08-02 |
| Manufacturer's number | EC0023 M 202307 |
| Manufacturer's date | 2023-07-31 |
| NHTSA component | ENGINE AND ENGINE COOLING |
NHTSA's summary
Emission Campaign: OBD MONITOR, This Recall includes an updated software in the EECU and ACM to address potential issues with the NOx sensor monitors used in the On-Board Diagnostic (ODB) system.
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
Engine
| MACK ANTHEM (AN) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| MACK GRANITE (GR) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GRANITE (GU) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK LR | 2022 |
| MACK PINNACLE (CHU) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK PINNACLE (CXU) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK PINNACLE (PI/PN) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK TERRAPRO (MRU) | 2022 (the catalog's model; the bulletin names a series or trim of it) |
| MACK TERRAPRO (TE) | 2022 (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.
| 26V139000 | 2026-03-11. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE |
|---|
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-913-001 202609 | 2026-10-02. Service bulletin. Parker engine-mounted hydraulic pump service bulletin. |
|---|---|
| M0039 032026 | 2026-04-02. Emissions. Emissions - EC0039 MST21 Failure to Detect P20EE - AN, CHU. |
| CBR 2128-7 202601 | 2026-02-03. Service bulletin. CBR - Engine Control Module (EMS) Software Information - Improvement List (Change Log), US21+OBD2021 Emissions ONLY |
| CBR 2107-22 202601 | 2026-02-02. Service bulletin. CBR - Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions to US22+OBD2023 (DOES NOT APPLY TO AN(4) and PR(4)). |
| CBR 199 202512 | 2026-01-05. Service bulletin. Vehicles affected by this issue will show coolant runoff on the front rights side of the engine. |
| CBR 2171-11 202511 | 2025-12-03. Service bulletin. CBR - Mack Temperature Sensor Troubleshooting Guide |
| CBR 199-6 202511 | 2025-12-03. Service bulletin. CBR - 13 Liter Engines ONLY - Engine Coolant Pump Housing Leak; Coolant Found Around The Oil Cooler Duct Cover Or In Between The Coolant Pump Housing And Oil Cooler Housing. |
| CBR 2107-21 202505 | 2025-06-02. Service bulletin. Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer |
| CBR 170-8 202505 | 2025-06-02. Service bulletin. Inactive Code P25AE00 Being Generated After A Hard Pull And A Momentary Drop In Engine Oil Pressure (Low Oil Pressure) (Possible Related Codes - SPN4811 , SPN 100 , PID 100) |
| CBR-2449 202503 | 2025-04-02. Service bulletin. Cummins Exhaust Aftertreatment System (EATS) catalysts may experience cracking, which may be attributed to excessive vertical vibration in the exhaust stack. To mitigate this issue, a modification to the exhaust stack length is required. |