# Service bulletins for the 2027 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.

13 bulletins from NHTSA, as of 2026-10-19.

- [TSB M\-371\-005A 202609](/bulletins/11037821.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Jumper Harness Repair for Version 4 Mack Trucks
- [TSB M\-373\-003 202609](/bulletins/11037728.md), 2026-10-02, Service bulletin: ELECTRICAL SYSTEM. Power Cable Alternator Replacement
- [CBR 2483\-6 202609](/bulletins/11037668.md), 2026-10-01, Service bulletin: ELECTRICAL SYSTEM. Diagnostic instructions for CAN network communication issues.
- [CBR 159 202608](/bulletins/11036580.md), 2026-09-01, Service bulletin: ELECTRICAL SYSTEM. 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
- [CBR 2595 072026](/bulletins/11035505.md), 2026-08-03, Service bulletin: WHEELS; SEATS. CBR \- The purpose of this CBR is to provide information on 2010 and newer Mack Granite chassis experiencing a low frequency vibration.
- [S4990 202606](/bulletins/11034137.md), 2026-06-29, Service campaign: STRUCTURE:BODY. The crossmember may come in contact with certain driveshaft U\-joint configurations.
- [CBR\-2592\-1 202606](/bulletins/11034135.md), 2026-06-29, Service bulletin: ENGINE. The purpose of this CBR is to provide steps on how to correct a customer complaint of DTC P107B86 accompanied With intermittent loss of throttle.
- [GDC26\-02 202605](/bulletins/11033141.md), 2026-06-02, Service bulletin: ELECTRICAL SYSTEM; SEAT BELTS; AIR BAGS. Fault diagnostic information for Supplemental Restraint / Airbag Inflation System \(SRS\)
- [GDC26\-001 202604](/bulletins/11032095.md), 2026-05-05, Over\-the\-air update: POWER TRAIN. GDC \- Transmission Oil Level Sensor
- [CBR 2573\-1 202604](/bulletins/11032092.md), 2026-05-05, Service bulletin: POWER TRAIN. CBR \- Mack Chassis \- Through Shaft Bearing Retainer Breakage On Mack Carriers.
- [CBR 2362\-3 202604](/bulletins/11032086.md), 2026-05-04, Service bulletin: POWER TRAIN. CBR \- Mack Carrier Nut Adhesive Change.
- [CBR 2246\-5 032026](/bulletins/11030583.md), 2026-04-02, Service bulletin: SUSPENSION. CBR \- Z Spring Bracket Wear.
- [CBR 2712\-7 032026](/bulletins/11030579.md), 2026-04-02, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. CBR \- No Start Condition After Over the Air Programing.

JSON: [/v1/vehicles/2027_mack_granite/bulletins](/v1/vehicles/2027_mack_granite/bulletins)

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