Total Complaints
2 filings
MACK GU · model year
2010 MACK GU
2 NHTSA complaints, and 4 recall campaigns listed for this cohort. A VIN lookup is required to determine whether a specific vehicle has an unrepaired recall.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2010MACKGU carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 0 fires, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
The most frequently selected component label in reports for the 2010 GU is vehicle speed control with 1 filings, followed by engine (1). Complaint categories reflect owner reports and intake categorization; they do not establish a defect pattern or cause. This cohort has 4 NHTSA recall campaigns listed below. Enter a VIN in NHTSA's official recall lookup to determine whether a specific vehicle has an unrepaired recall.
NHTSA currently has 5 investigation files overlapping the 2010 GU. Owners comparing this cohort against neighboring years should read the complaint-by-year trend as report volume, not a causal diagnosis. Use the related-complaint feed and the official recall lookup when researching a specific vehicle.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| VEHICLE SPEED CONTROL | 1 |
| ENGINE | 1 |
Recalls (4)
14V07800021/02/2014
ELECTRICAL SYSTEM
Mack Trucks, Inc. (Mack) notified the agency on February 20, 2014, that they are recalling certain model year 2010-2012 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. While continuing to research the scope of the issue, Mack expanded the recall on November 18, 2
11V29200020/05/2011
ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
MACK TRUCKS IS RECALLING CERTAIN MODEL YEAR 2008-2011 GU HEAVY TRUCKS MANUFACTURED FROM SEPTEMBER 12, 2007, THROUGH APRIL 8, 2011, WITH A FOUR BATTERY CABLE DESIGN. AS A RESULT OF THE ROUTING AND CLIPPING USED, THE BATTERY CABLES MAY COME INTO CONTACT WITH FRAME HARDWARE, WHICH, AS A RESULT OF CHAF
14V20800018/04/2014
EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT
Mack Trucks Inc. (Mack) is recalling certain model year 2010-2014 CHU, CXU, and MRU, 2007 CT and CV, 2008-2014 GU, and 2011-2014 LEU, and TD trucks manufactured February 28, 2006, through November 8, 2013, and equipped Hamsar Electronic Flasher. The hazard warning lights may fail.
10V40400007/09/2010
SERVICE BRAKES, AIR
MACK IS RECALLING CERTAIN MODEL YEAR 2008 THROUGH 2011 GU AND MRU MODEL VEHICLES MANUFACTURED WITH A FRONT TOW GLAD HAND OPTION. THE ACTUATION AND RELEASE TIMING OF THE VEHICLES EXCEEDS THE LIMIT WHICH FAILS TO CONFORM TO THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 121, "AIR BRAKE
Recent Complaints
20140305VEHICLE SPEED CONTROL
TL* THE CONTACT OWNS A 2010 MACK TRUCK GU712. THE DRIVER WAS TRAVELING 30 MPH AND ATTEMPTED TO DECELERATE WHEN THE VEHICLE SUDDENLY ACCELERATED. THE DRIVER WAS ABLE TO APPLY THE BRAKES AND MAINTAIN CONTROL OF THE VEHICLE. THE ENGINE RPMS INCREASED 12000-17000, AND CONTINUED TO INCREASE WHEN THE ENGINE WAS SHUT OFF. THE CERTIFIED MECHANIC INSPECTED THE TRUCK AND REPLACED THE THROTTLE. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 9,015. UPDATED 05/12/14*LJ THE CONSUMER STATED WHILE IN OPERATION, THE UNIT WAS ABNORMALLY HARD TO MAINTAIN. WHEN HE PROCEEDED FROM A STOP, THE THROTTLE WAS ABOVE IDLE. THE CONSUMER WAS INFORMED THE THROTTLE WAS DEFECTIVE.
Mileage: 9,015
20140305ENGINE
TL* THE CONTACT OWNS A 2010 MACK TRUCK GU712. THE DRIVER WAS TRAVELING 30 MPH AND ATTEMPTED TO DECELERATE WHEN THE VEHICLE SUDDENLY ACCELERATED. THE DRIVER WAS ABLE TO APPLY THE BRAKES AND MAINTAIN CONTROL OF THE VEHICLE. THE ENGINE RPMS INCREASED 12000-17000, AND CONTINUED TO INCREASE WHEN THE ENGINE WAS SHUT OFF. THE CERTIFIED MECHANIC INSPECTED THE TRUCK AND REPLACED THE THROTTLE. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 9,015. UPDATED 05/12/14*LJ THE CONSUMER STATED WHILE IN OPERATION, THE UNIT WAS ABNORMALLY HARD TO MAINTAIN. WHEN HE PROCEEDED FROM A STOP, THE THROTTLE WAS ABOVE IDLE. THE CONSUMER WAS INFORMED THE THROTTLE WAS DEFECTIVE.
Mileage: 9,015
Compare 2010MACKGU to Similar Vehicles
NHTSA Investigations
PE20005Preliminary EvaluationClosed
mDrive Transmission Failure to Disengage
PE20003Preliminary EvaluationClosed
Vehicle Roll Away
PE10042Preliminary EvaluationClosed
Failing 5th wheel attachment bolts
PE08069Preliminary EvaluationClosed
AIR COMPRESSOR DISCHARGE LINE
PE02094Preliminary EvaluationClosed
INTEGRAL HUB AND BEARING ASSEMBLY
Frequently Asked Questions
How many complaints does the 2010 MACK GU have?▼
The 2010 MACK GU has 2 NHTSA complaints, 0 crashes, 0 fires, 0 injuries, and 0 deaths reported.
Are there any recalls for the 2010 MACK GU?▼
Yes, the 2010 MACK GU has 4 recall(s). The most common affected component is ELECTRICAL SYSTEM. Recalls are issued by NHTSA and manufacturers must provide a free remedy.
What are the most common problems with the 2010 MACK GU?▼
The most-complained component for the 2010 MACK GU is VEHICLE SPEED CONTROL with 1 complaints. Other frequently reported areas include ENGINE.
Is the 2010 MACK GU safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data vintage: August 2026. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Every figure on PlainCars is rendered directly from NHTSA complaint and safety data, no number is typed in by an editor. This year-specific record is rendered from NHTSA ODI, recall, and NCAP rows for the 2010 MACK GU; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.
Read our methodology - how this data is sourced, computed, and verified.