Service bulletin KC-257
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 | 10209796 |
| Published by NHTSA | 2022-04-05 |
| Manufacturer's number | KC-257 |
| Manufacturer's date | 2022-03-18 |
| NHTSA component | ENGINE AND ENGINE COOLING; EQUIPMENT |
NHTSA's summary
Volvo Chassis - FSB 237 - 020, Unit Injector Yoke Hold - Down Bolt Torque Specification
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, Equipment and accessories
| MACK CHU | 2009 to 2017 |
|---|---|
| MACK CXU | 2009 to 2017 |
| MACK GRANITE (GR) | 2016 |
| MACK GRANITE (GR) | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GRANITE (GU) | 2009 to 2016 |
| MACK GRANITE (GU) | 2017 (the catalog's model; the bulletin names a series or trim of it) |
| MACK GU | 2009 to 2017 |
| MACK PINNACLE (CHU) | 2009 to 2016 |
| MACK PINNACLE (CHU) | 2017 (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.
| M0302 022026 | 2026-03-03. Emissions. Emissions - Mack Trucks has determined that certain vehicles equipped with a model year (“MY”) 2017-2018 MP7 engine may not meet California and Federal Regulations (CARB). |
|---|---|
| CBR 820-9 202601 | 2026-02-03. Service bulletin. CBR - Mack Chassis - Engine Brake Only Works With The Brake Pedal, No Function During Cruise. US07 And Newer Emissions, Model Year 2008 And Newer. |
| 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 2171-11 202511 | 2025-12-03. Service bulletin. CBR - Mack Temperature Sensor Troubleshooting Guide |
| 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) |
| M0350 202504 | 2025-05-05. Emissions. ER - Mack Trucks has identified that the Selective Catalyst Reduction (SCR) system in certain vehicles equipped with the MY 2017 or 2018 MP8 VGT and Turbo Compound (TC) engines are not meeting California and EPA emissions standards, or Mack cannot confirm its compliance. |
| CBR-561 202503 | 2025-04-02. Service bulletin. If oil dilution is suspected refer to the applicable CBR solution below: ∙ CBR-659Mack Chassis - Oil Diluted With Fuel; Fuel In Oil, Diagnostic Information - All Emissions, All Model Years |
| CBR-997 202411 | 2024-12-02. Service bulletin. Vehicles 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. |
| M0310 202410 | 2024-11-04. Emissions. EMISISON RECALL - SCR Replacement. |