Model year

2021 Mack Granite (GU)

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

Recall campaigns covering this model year428k vehicles or units across those campaigns
Owner complaints0Not enough peers on file
Severity indexNoneCrash, fire, injury or death per 100
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2021 Mack Granite (GU) 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

4 recall campaigns cover the 2021 Mack Granite (GU)

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 2021 Mack Granite (GU)
CampaignFiledSubjectComponentVehiclesRemedy
23V-600Aug 25, 2023Turn signals may be positioned incorrectly, reducing their visibilityLighting27,418Not stated
21V-476Jun 25, 2021Lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nutsSuspension8Part replacement
21V-416Jun 2, 2021Hubcap compression spring can cause the hubcap to separateWheels307Not stated
21V-233Apr 1, 2021Vehicles may not stay in their lane at certain speedsStability and traction control557Software update
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2021 Mack Granite (GU)

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

    85 manufacturer communications cover this model year

    Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall; the 60 most recent are listed.

    • CBR-2360 202404 Apr 2, 2024 · Service Bulletin/Repair Instructions
      CBR: Chassis Equipped With VECU5 Active Datalink/Communication Faults For Multiple Modules; ABS And SRS Communication Faults
    • CBR-2013 202404 Apr 2, 2024 · Service Bulletin/Repair Instructions
      CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
    • CBR-1008 202404 Apr 22, 2024 · Service Bulletin/Repair Instructions
      CBR: Equipped With An Automated Manual Transmission Model D or F ( AMT-D, AMT-F, mDrive) Missing X1 Value In VDA And Default Settings Guidelines, ParameterP1AOB; Fault Code P1052-54, Error 40,Or Error 18 Encountered During Clutch Or Tran.
    • CBR-2356 202403 Mar 1, 2024 · Service Bulletin/Repair Instructions
      CBR: After cluster replacement and programming, the Driver Information Display (DID) may not function as designed.
    • CBR-2139 202403 Mar 1, 2024 · Service Bulletin/Repair Instructions
      CBR: Vehicles built with an 11 liter engine may experience a complaint of excessive fuel in the oil. It is possible that the source of the fuel is the rear fuel galley plug in the cylinder head.
    • S3630 202402 Feb 18, 2024 · Service Bulletin/Repair Instructions
      Service Campaign - MP8 Stainless Oil Pan.
    • CBR-2350 202402 Feb 21, 2024 · Service Bulletin/Repair Instructions
      CBR -Telematics Gateway (TGW) Connect Ability Issues
    • CBR-2347 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).
    • CBR-202 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
    • CBR-2014 202402 Feb 16, 2024 · Service Bulletin/Repair Instructions
      CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
    • CBR-2333 202401 Jan 18, 2024 · Service Bulletin/Repair Instructions
      CBR: TGW Will Not Connect After SIM Card Replacement
    • CBR-2016 202401 Jan 17, 2024 · Service Bulletin/Repair Instructions
      CBR: Frame Or Cab Lean
    • CBR-2320 202312 Dec 1, 2023 · Service Bulletin/Repair Instructions
      CBR: For vehicles equipped with an 11L engine, the plastic saddle bracket holding the a/c line on the left side of the engine may move excessively and rub the area where it secures the line.
    • PSM23m2na71 Nov 10, 2023 · Service Bulletin/Repair Instructions
      Parts Sales and Marketing Bulletin: Mack Trucks is excited to announce an additional year warranty program on REMACK AMT mDRIVE Complete Transmissions. This extended warranty of 3 years or 350,000 miles on the transmission will be applicable when dealer in…
    • M-465-001 202311 Nov 7, 2023 · Service Bulletin/Repair Instructions
      TSB: Mack Trucks now offer an improved HD Inter-Axle Through Shaft for the CRD 125, 150, 180, and 200 family carriers. The new HD shaft went into production on January 23rd, 2023 for 2.54 - 3.50 axle ratios and April 1st, 2023 for 3.56 - 3.98 ratios. The ne…
    • CBR-399 202310 Oct 19, 2023 · Service Bulletin/Repair Instructions
      CBR: Vehicle Overspeed Warning Comes Active At A Lower Speed Than Expected; Vehicle Overspeed Warning In Driver Information Display (DID) - Model Year 2018 And Newer With New Style Instrument Cluster
    • CBR-206 202310 Oct 12, 2023 · Service Bulletin/Repair Instructions
      CBR: Vehicle Speed Factor (K-Factor) Programming - Speed Factor Value Incorrect When Calculated In Premium Tech Tool (PTT); Speedometer Reading Incorrectly Following A Change To Vehicle Speed Factor - US17+OBD16 And Newer Emissions, Common Model Year 2018.
    • CBR-2313 202309 Sep 29, 2023 · Service Bulletin/Repair Instructions
      CBR: "Spitting" or "puffing" of air from purge valve.
    • M-258-014 202309 Sep 5, 2023 · Service Bulletin/Repair Instructions
      TSB: Aftertreatment Diesel Exhaust Fluid (DEF) Tank, Level Sensor, Replacement
    • M728-005A 202308 Aug 14, 2023 · Service Bulletin/Repair Instructions
      TSB: Barksdale Leveling Valve, Leak Test
    • M-141-001 202308 Aug 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Air Restriction Indicator
    • CBR-2131 202308 Aug 14, 2023 · Service Bulletin/Repair Instructions
      CBR: Intermittent Diagnostic Trouble Codes U02A3,U029D, U029E - USE FOR NEW VEHICLES (US21+OBD22 Emissions)
    • CBR-2112 202307 Jul 24, 2023 · Service Bulletin/Repair Instructions
      CBR: Programming Failure - Chassis With Cummins Engine And An Allison Transmission
    • CBR-2303 202307 Jul 1, 2023 · Service Bulletin/Repair Instructions
      CBR: Mack DEF Dosing Valve Diagnostic Trouble Codes (DTC) P202D00, P208E00, P103B00 - US10+OBD13 And Newer Emissions
    • SLM23-005 May 31, 2023 · Service Bulletin/Repair Instructions
      Service Literature Published and Released in May, 2023
    • KC-2050 May 30, 2023 · Service Bulletin/Repair Instructions
      CBR: Diagnostic Trouble Code (DTC) P225C00 : NOx1 Sensor Stuck High - US17+OBD2019 And Newer Emissions
    • KC-331-Ver6 May 22, 2023 · Service Bulletin/Repair Instructions
      CBR: Model Year 2017 to Current - Fuel Filter Change ( Primary And Secondary ) For The EM - USA17 Emission Engines
    • KC-503-Ver3 May 17, 2023 · Service Bulletin/Repair Instructions
      CBR: Automated Manual Transmission ( AMT ) -Transmission Electronic Control Unit ( TECU ) MID130 PSID 29 FMI 7 /P10AE81 Fault Codes Being Generated
    • KC-2229-Ver2 May 10, 2023 · Service Bulletin/Repair Instructions
      CBR: Automated Manual Transmission (AMT) Transmission Kickdown Mode
    • KC-474-Ver5 May 2, 2023 · Service Bulletin/Repair Instructions
      CBR: Diagnostic Trouble Code (DTC) P215A-64, Fault Code SPN 84 FMI 19
    • M-773-005a Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Hub Cap, Leaking
    • M-170-003 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Vibration Diagnostics
    • M-170-001 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Stock Vehicle Storage and Maintenance
    • M-700-001 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: Frame Flange Relief Cut-out Templates with 105 millimeter Frame Flanges
    • M-170-002 Apr 18, 2023 · Service Bulletin/Repair Instructions
      TSB: New Vehicle Safety Certification Requirements for Vehicles, U.S. and Canada
    • KC-2266 Apr 27, 2023 · Service Bulletin/Repair Instructions
      CBR: Mack Granite - Diagnostic Trouble Code (DTC) P208464
    • KC-2264 Apr 20, 2023 · Service Bulletin/Repair Instructions
      CBR: Mack Chassis - Allison Reduced Engine Load At A Stop (RELS) Diagnostic Trouble Code P071a Or P07ce - GR,TE,LR Models - Non-Split/Drop Box PTO
    • M-773-005 Mar 16, 2023 · Service Bulletin/Repair Instructions
      New TSB- Hub cap leaking
    • S7627 Feb 28, 2023 · Service Bulletin/Repair Instructions
      Mack MMD Alternator Pulley
    • KC-2254 Feb 13, 2023 · Service Bulletin/Repair Instructions
      Mack Chassis - No Gauge Cluster Backlight
    • KC-2165 Feb 10, 2023 · Service Bulletin/Repair Instructions
      Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
    • KC-2253 Feb 7, 2023 · Service Bulletin/Repair Instructions
      Barksdale Height Control Valve Troubleshooting Guide
    • M-852-001 Dec 14, 2022 · Service Bulletin/Repair Instructions
      2007 document reformatted to be published as a TSB in Impact. Lateral cab movement bracket.
    • KC-2165 Oct 31, 2022 · Service Bulletin/Repair Instructions
      Mack DEF Pump Troubleshooting Guide - US10+OBD13 And Newer Emissions
    • KC-365 Mar 16, 2022 · Service Bulletin/Repair Instructions
      Mack Chassis - Technical Service Bulletin M-728-005, Leveling Valve, Leak Test, Air Leaks From The Leveling Valve After The Vehicle Is Parked (Shut Off)
    • KC-2107 Feb 25, 2022 · Service Bulletin/Repair Instructions
      DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
    • KC-561 Feb 22, 2022 · Service Bulletin/Repair Instructions
      Engine Oil Analysis Specifications - US10 And Newer Emissions
    • KC-552 Feb 22, 2022 · Service Bulletin/Repair Instructions
      Aftertreatment Control Module ( ACM ) Diagnostic Trouble Codes ( DTC ) U0001-88 and U0010-88 Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning – US10 And Newer Chassis
    • KC-2107 Feb 18, 2022 · Service Bulletin/Repair Instructions
      DEF Level (UQLS) Sensor Troubleshooting Guide - US17+OBD16 Emissions and Newer
    • S7567 Jan 20, 2022 · Service Bulletin/Repair Instructions
      EPRV Delete & Fuel Rail Pressure Sensor Update
    • KC-478 Jan 26, 2022 · Service Bulletin/Repair Instructions
      Variable Geometry Turbocharger ( VGT ) Function Test ( 2551-08-03-02 ), OBD13 Model Year ( MY ) 2014 And Newer
    • KC-415 Jan 20, 2022 · Service Bulletin/Repair Instructions
      Diagnostic Trouble Code ( DTC ) P26E8 Intermittently Lighting The Malfunction Indicator Lamp ( MIL ); Possible Derate Warning - US10+OBD13 And Newer Emissions, Model Year 2014 And Newer
    • KC-406 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
    • KC-401 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Diagnostic Trouble Codes (DTC) P24F600 Or P24F700 - US14+OBD15 Emissions And Newer, Model Year 2016 And Newer
    • KC-406 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Dye Test Procedure; Fuel System Leak Check - Common Rail Fuel System - US17+OBD16 And Newer Emissions, Common Model Year 2018 And Newer
    • KC-402 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Volvo Chassis - Diagnostic Trouble Code (DTC) SA 0 FMI 0 or SPN 0 FMI 0 Present On Fault Code Readout - US10 And Newer Emissions, Model Year 2011 And Newer
    • KC-391 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Noise On The AM Radio Band; Thumping, Ticking, Fluttering Sound On AM Radio Band - Model Year 2018 And Newer
    • KC-383 Jan 19, 2022 · Service Bulletin/Repair Instructions
      Mack Chassis - Equipped With Bendix Fusion, With Or Without Lane Departure Warning ( LDWS ) - Diagnostic Trouble Code ( DTC ) SPN 70 FMI 9, Bendix Code 64 With Possible "Lane Departure Warning Malfunction" Message - US17 And Newer
    • KC-354 Jan 17, 2022 · Service Bulletin/Repair Instructions
      Volvo Chassis - Certain Volvo Trucks Built After January 11, 2016 May Experience an Issue with the Instrument Cluster Display
    • KC-297 Jan 4, 2022 · Service Bulletin/Repair Instructions
      Mack Chassis - Adding Snow Plow Lights - Parameter And Variant Changes
    Source: NHTSA manufacturer communications files.