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Service bulletins for the 2021 Mack Granite

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.

225 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Only bulletins with component: Brakes are shown. Show all

Bulletins, newest first
CBR 407 0720252025-08-04. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM. CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
CBR-407 2024092024-10-03. Service bulletin. SERVICE BRAKES. CBR: To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP fi le will need to be downloaded.
CBR-2360 2024042024-05-01. Service bulletin. AIR BAGS; SEAT BELTS; SERVICE BRAKES, AIR. CBR: Chassis Equipped With VECU5 Active Datalink/Communication Faults For Multiple Modules; ABS And SRS Communication Faults
CBR-2313 2023092023-10-03. Service bulletin. SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR; SERVICE BRAKES, AIR. CBR: "Spitting" or "puffing" of air from purge valve.
KC-2012-Ver32023-06-05. Service bulletin. SERVICE BRAKES. CBR: SNM 20-005 - HD Disc Brake Rotor Upgrade
KC-21402022-12-05. Service bulletin. ELECTRICAL SYSTEM; PARKING BRAKE. Mack Chassis - P05E662 Park brake Sensor/Switch Circuit Range/Performance, Signal Compare failure - Diagnostic Instructions - US21+OBD21 Emissions
SLM22-0042022-05-06. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT; STEERING. Service Literature Published and Released in April, 2022
KC-2862022-01-06. Service bulletin. SERVICE BRAKES, AIR; UNKNOWN OR OTHER. Mack Chassis - FSB 563-008 Plugs, Pressure Protection Manifold - New Brass Plugs For Noregon Pressure Protection Manifold (PPM)
KC-2152022-01-06. Service bulletin. POWER TRAIN; PARKING BRAKE. Mack Chassis - Granite (GR) Models Equipped With An Allison Transmission And Split Box PTO - "Release Parking Brake" Message Present In Instrument Cluster When Parking Brake Is Released - Model Year 2018 And Newer
S76102021-11-05. Service bulletin. SERVICE BRAKES, AIR; SERVICE BRAKES, AIR:SLACK ADJUSTERS; SUSPENSION:SUBFRAME/MOUNTING BRACKET. Bump Stop Interference with Brake Slack
FSB 511-0102021-05-04. Service bulletin. SERVICE BRAKES, AIR. Disc Brake Rotor, Replacement

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.