Model year

2026 Mack Granite GR (4)

Body and fuel not decoded. Owner complaints on file from no date to no date.

Recall campaigns covering this model year241 vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 monthsOpenWindow has not closed yet
Complaints over time

Complaints about the 2026 Mack Granite GR (4) by year filed

Owner complaints about this model year, by the year they were filed with NHTSA.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

Complaints by component

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

No campaigns match these filters.Reset filters
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

2 recall campaigns cover the 2026 Mack Granite GR (4)

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2026 Mack Granite GR (4)
CampaignFiledSubjectComponentVehiclesRemedy
25V-495Jul 29, 2025Brake drum and steer axle combination are incompatible, which may cause a loss of brake functionBrakes36Part replacement
25V-352May 28, 2025Incorrect drive axle brake drums were installed, resulting in an incorrect load rating on the door jamb labelEquipment5Part replacement
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2026 Mack Granite GR (4)

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

0 complaints on file.

    Source: NHTSA ODI complaints file.
    Investigations

    NHTSA has not opened an investigation on this model year

    Source: NHTSA ODI investigations file.
    Service bulletins

    20 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

    • TSB M-371-005A 202609 Sep 1, 2026 · Service Bulletin/Repair Instructions
      Jumper Harness Repair for Version 4 Mack Trucks
    • TSB M-373-003 202609 Sep 27, 2026 · Service Bulletin/Repair Instructions
      Power Cable Alternator Replacement
    • CBR 2483-6 202609 Sep 17, 2026 · Service Bulletin/Repair Instructions
      Diagnostic instructions for CAN network communication issues.
    • CBR-2592-1 202606 Jun 22, 2026 · Service Bulletin/Repair Instructions
      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 May 29, 2026 · Service Bulletin/Repair Instructions
      Fault diagnostic information for Supplemental Restraint / Airbag Inflation System (SRS)
    • GDC26-001 202604 Apr 25, 2026 · Over The Air
      GDC - Transmission Oil Level Sensor
    • CBR 2573-1 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
      CBR - Mack Chassis - Through Shaft Bearing Retainer Breakage On Mack Carriers.
    • CBR 2362-3 202604 Apr 9, 2026 · Service Bulletin/Repair Instructions
      CBR - Mack Carrier Nut Adhesive Change.
    • CBR 2218-6 032026 Mar 3, 2026 · Service Bulletin/Repair Instructions
      CBR - Parker F3 Hydraulic Pump Troubleshooting.
    • CBR 2712-7 032026 Mar 19, 2026 · Service Bulletin/Repair Instructions
      CBR - No Start Condition After Over the Air Programing.
    • CBR 199 202512 Dec 4, 2025 · Service Bulletin/Repair Instructions
      Vehicles affected by this issue will show coolant runoff on the front rights side of the engine.
    • CBR 2172-5 082025 Aug 22, 2025 · Service Bulletin/Repair Instructions
      CBR - When an OTA (Over-The-Air) job starts to program the VECU blocks the starter relay out, if the job ends in a Critical failure, the vehicle will remain in Safe State.
    • S4574 072025 Jul 1, 2025 · Service Campaign
      SC - Mack Trucks has identified that certain truck models may have been assembled with incorrectly torqued interaxle prop shaft U-joint hardware.
    • CBR 407 072025 Jul 17, 2025 · Service Bulletin/Repair Instructions
      CBR - To correct the MID136 SID 66 FMI 7 fault code the latest Bendix VCP file will need to downloaded.
    • CBR 2488 072025 Jul 28, 2025 · Service Bulletin/Repair Instructions
      CBR - A significant GPS reporting issue is affecting fleet operations, with trucks maintaining back-office communication but failing to transmit GPS location data.
    • CBR 2464-1 202505 May 1, 2025 · Service Bulletin/Repair Instructions
      Mack Chassis - Rear Axle Overheat
    • CBR 2107-21 202505 May 27, 2025 · Service Bulletin/Repair Instructions
      Mack DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
    • CBR 901-5 202505 May 13, 2025 · Service Bulletin/Repair Instructions
      Remote Control Central Door Lock, Programming; Key Fob Cannot Be Programmed Or Does Not Work After Programming - Model Year 2018 And Newer
    • CBR 170-8 202505 May 28, 2025 · Service Bulletin/Repair Instructions
      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 70-8 202505 May 6, 2025 · Service Bulletin/Repair Instructions
      Lack of lateral structural hood support.
    Source: NHTSA manufacturer communications files.