No complaints are listed for the 2021 Mack Granite (gu). NHTSA's API and bulk file list none in this build.
Data build 2026-10-09.
NHTSA lists this vehicle as MACK GRANITE (GU).
Model-generated complaint tags: No complaints are listed for tagging.
Recalls
See new recalls and investigations this week.
4 recalls.
Date: 2023-08-25. Systems: EXTERIOR LIGHTING.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2015-2023 GU and GR vehicles. The turn signals may be positioned incorrectly, reducing their visibility. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 108, "Lamps, Reflective Devices, and Associated Equipment."
Consequence: Low turn signal visibility may not alert other drivers to a turning vehicle, increasing the risk of a crash.
Remedy: Dealers will add additional turn signal lighting, free of charge. Owner letters were mailed September 25, 2024. Owners may contact Mack's customer service at 1-800-866-1177. Mack's number for this recall is SC0448.
Do not drive: No. Park outside: No.
Date: 2021-06-25. Systems: SUSPENSION.
Defect: Mack Trucks, Inc. (Mack Trucks) is recalling certain 2020-2021 Granite vehicles equipped with certain SL2065 steerable lift axles. The lower rear pivot cap screws may not be long enough to sufficiently engage the locking feature of the corresponding nuts.
Consequence: The short screws can cause the hardware to separate from the suspension system and become a road hazard, increasing the risk of a crash or injury.
Remedy: Mack Trucks will inspect the suspension system and replace the lower rear pivot cap screws, as necessary, free of charge. Owner notification letters were mailed on July 30, 2021. Owners may contact Mack Trucks' customer service at 1-800-866-1177. Mack Trucks' number for this recall is SC0426.
Do not drive: No. Park outside: No.
Date: 2021-06-02. Systems: WHEELS.
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2021-2022 Anthem, Granite, and Pinnacle vehicles. The hubcap compression spring can cause the hubcap to separate.
Consequence: A separated hubcap can create a road hazard, increasing the risk of a crash.
Remedy: Dealers will remove the hubcap, free of charge. Owner notification letters were mailed June 30, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0425.
Do not drive: No. Park outside: No.
Date: 2021-04-01. Systems: ELECTRONIC STABILITY CONTROL (ESC).
Defect: Mack Trucks, Inc. (Mack) is recalling certain 2018-2022 Anthem (AN), Granite (GR/GU), and Pinnacle (CHU/CXU/PI) vehicles equipped with "camelback" rear suspension and electronic stability control. The vehicles may not stay in their lane at certain speeds. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 136, "Electronic Stabilit (excerpt)
Consequence: A vehicle that drifts out of its lane increases the risk of a crash. (excerpt)
Remedy: Mack will notify owners, and dealers will reprogram the vehicle control units, free of charge. The recall began on April 21, 2021. Owners may contact Mack customer service at 1-800-866-1177. Mack's number for this recall is SC0423. (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
85 manufacturer communications.
Communications by system| System | Count |
|---|
| ENGINE AND ENGINE COOLING | 34 |
|---|
| ELECTRICAL SYSTEM | 16 |
|---|
| POWER TRAIN | 12 |
|---|
| EQUIPMENT | 9 |
|---|
| STRUCTURE | 6 |
|---|
| SUSPENSION | 6 |
|---|
| FUEL SYSTEM, DIESEL | 5 |
|---|
| SERVICE BRAKES, AIR | 3 |
|---|
10253804
Date: 2024-04-22. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
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.
10253807
Date: 2024-04-02. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING.
CBR: Turbo Compound (TC) Hot Side Noise, Diagnostic Information.
10253817
Date: 2024-04-02. Type: Service Bulletin/Repair Instructions. Systems: AIR BAGS, SEAT BELTS, SERVICE BRAKES, AIR.
CBR: Chassis Equipped With VECU5 Active Datalink/Communication Faults For Multiple Modules; ABS And SRS Communication Faults
10252308
Date: 2024-03-01. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING.
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.
10252311
Date: 2024-03-01. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR: After cluster replacement and programming, the Driver Information Display (DID) may not function as designed.
10251333
Date: 2024-02-21. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR -Telematics Gateway (TGW) Connect Ability Issues
10251334
Date: 2024-02-18. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING.
Service Campaign - MP8 Stainless Oil Pan.
10251328
Date: 2024-02-16. Type: Service Bulletin/Repair Instructions. Systems: SUSPENSION.
CBR - Driveline Noise, Suspension Ride Height Too High, Suspension Will Not Exhaust - Chassis Built 2016w01 And Newer.
10251329
Date: 2024-02-16. Type: Service Bulletin/Repair Instructions. Systems: POWER TRAIN.
CBR - Automated Manual Transmission ( AMT ) Flywheel Pilot Bearing Wear On Input Shaft.
10251331
Date: 2024-02-16. Type: Service Bulletin/Repair Instructions. Systems: ELECTRICAL SYSTEM.
CBR - Active "Set Park Brake" Message On Drivers Information Display (DID).