- The problem
- 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.
- The risk
- A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
- The fix
- Mack will notify owners, and dealers will replace the electronic flasher unit, free of charge. The recall will begin by mid-June 2014. Interim letters went out to owners on June 23, 2014. The recall began on July 25, 2014. Owners may contact Mack customer service at 1-866-298-6586. Mack's number for this recall is SC0379.
Vehicle safety record
2011 Mack GU Problems, complaints & recalls
No owner complaints about the 2011 Mack GU have been filed with NHTSA. It is covered by 5 recalls, the latest in April 2014 for the flasher unit.
NHTSA data checked
FFar more problems than a typical GU year, for its age
- Complaints
- 0
- Recalls
- 5
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2011 Mack GU recalls 5
Recall repairs are free. Your dealer fixes them whether or not you bought the car there - check your VIN at nhtsa.gov/recalls to see if yours is done. What to do
- The problem
- 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, 2014 to include certain model year 2008-2009 and 2013-2014 CHU, CXU, GU and TD vehicles manufactured from June 16, 2009, through July 8, 2011. Having completed its investigation, Mack once again expanded the recall during February 2015 to include an additional 53,780 vehicles from model years 2007 and 2015. The recall now covers model year 2007-2015 includes CHU, CXU, GU and TD vehicles produced October 13, 2006, through October 3, 2014. In the affected vehicles, the Electronic Power Distribution Module (EPDM) may be contaminated from water leaks in, and around, the windshield. If exposed to water leaks, contaminants such as road salts may deposit on the EPDM.
- The risk
- Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
- The fix
- Mack has notified owners, and dealers will inspect the EPDM. If contamination has occurred, dealers will replace the EPDM and address the leak, free of charge. Owners of model year 2010-2012 CHU, CXU, GU and TD vehicles were initially notified April 24, 2014. Owners affected by the recall expansions were notified in February 2015. Owners may contact Mack Trucks at 1-336-393-2000. Mack's number for this recall is SC0375.
- The problem
- 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 chafing, may cause the insulation to become worn to a point where a short occurs.
- The risk
- A SHORT CAN POTENTIALLY CAUSE A VEHICLE FIRE.
- The fix
- Dealers will re-route the battery cables and replace the cables if chafing has occurred. This service will be performed free of charge. The safety recall began on july 11, 2011. Owners may contact mack trucks at 1-800-866-1177.
- The problem
- Mack trucks is recalling certain model year 2011-2012 chu, cxu, gu, leu and mru trucks manufactured from october 15, 2010, through january 31, 2011, and equipped with gunite automatic slack adjusters. Due to an incomplete "knitting" of the iron at the time of casting, inadequate structural integrity of the slack adjuster housing can occur, which could cause the housing to break at the handle under normal operating loads.
- The risk
- Slack adjusters with this flow notch could crack under normal braking conditions causing loss of braking which could result in a vehicle crash.
- The fix
- Mack trucks will notify owners and dealers will replace the subject slack adjusters free of charge. The safety recall began on august 24, 2011. Owners may contact mack trucks at 1-800-528-6586.
- The problem
- 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 systems."
- The risk
- If the brakes do not perform as they should, a vehicle crash could occur.
- The fix
- Mack will notify owners and repair the vehicle free of charge. The safety recall began on february 1, 2011. Owners may contact mack at 1-877-800-4945.
What owners say
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No complaints about the 2011 Mack GU yet
No owner has filed a complaint about this vehicle with NHTSA. If yours has a problem, share it here and report it to NHTSA.
Mack GU: every year compared
All GU years2011 Mack GU vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 2011 Mack GU | 0 | 5 | F | |
| 2011 Mack CXU612 | 1 | 0 | - | Compare |
More sales usually means more complaints, so compare similar vehicles of the same year. The grade compares each vehicle with its own model's other years.
Questions about the 2011 Mack GU
Does the 2011 Mack GU have any recalls?
Yes - NHTSA lists 5 recalls for the 2011 Mack GU: flasher unit (April 2014); electrical system (February 2014); cables (May 2011); automatic (May 2011) and more. Recall repairs are free at any authorized dealer. Enter your VIN at nhtsa.gov/recalls to see whether yours has been fixed.
How many complaints has the 2011 Mack GU had?
None have been filed with NHTSA so far.
Is the 2011 Mack GU a reliable vehicle?
Its Safety Index is 20 out of 100 (grade F: far more problems than a typical Mack GU year, for its age). The index weighs complaints, crashes, fires, injuries, deaths and recalls against how long the vehicle has been on the road, compared with the same model's other years. It is not a measure of every repair - read the complaints and owner experiences, and have any used vehicle inspected before you buy.
Which Mack GU years have the most complaints?
2009 (1), 2010 (1), 2013 (1). See every Mack GU year compared.
What should I do if my 2011 Mack GU has a problem?
If it is a safety problem, stop driving it if it is unsafe and contact your dealer. Report it to NHTSA at nhtsa.gov/report-a-safety-problem - enough reports start investigations and recalls - and share your experience here so other owners know what to look for.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked . Complaints are owners' own reports and are not verified. How we use the data