- 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
2008 Mack GU Problems, complaints & recalls
No owner complaints about the 2008 Mack GU have been filed with NHTSA. It is covered by 9 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
- 9
- Crashes
- 0
- Fires
- 0
- Injuries
- 0
- Deaths
- 0
2008 Mack GU recalls 9
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 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.
- The problem
- On certain trucks, the daytime running lights (drl) module may contain a suspect metal-oxide-semiconductor field effect transistor (mosfet) that could overheat.
- The risk
- If the transistor overheats, it could possibly result in a vehicle fire.
- The fix
- Dealers will replace the suspect drl module free of charge. The recall began on october 31, 2007. Owners may contact mack trucks at 1-800-528-6586.
- The problem
- On certain trucks equipped with parker single check valves (scv) provided by bendix. The defect exists in the parker scv that connects with the supply port of the sr-7 spring brake modulating valve. After prolonged use of the parker scv, the valve body retainer may become excessively worn and eventually break apart. Pieces of the parker scv can become lodged inside the sr-7 spring brake modulating valve, potentially causing either leakage out of the sr-7 valve or preventing air from properly exhausting from the sr-7 valve.
- The risk
- This condition can cause a delay in the application of the spring brakes to park the vehicle after the operator pulls the dash valve button. These conditions can occur without warning, leading to unintended vehicle rollaway, brake drag, or in the case of loss of primary circuit, inability to modulate the spring brakes.
- The fix
- Mack is working with bendix to replace the parker single check valve. The recall began on january 9, 2008. Owners may contact bendix at 1-440-329-9000 or mack at 1-800-528-6586.
- The problem
- On certain trucks equipped with bendix sr-7 spring brake modulating valves, the internal rubber check valve may leak causing a delay in the application of the spring brakes to park the vehicle after the operator pulls the dash valve button.
- The risk
- This could delay or failure in applying the parking brakes which could result in a vehicle roll away, increasing the risk of a crash.
- The fix
- Mack is working with bendix to repair these vehicles (please see 07e037). Bendix will install a check valve repair kit for the affected sr-7 spring brake modulating valve free of charge. The recall began on january 10, 2008. Owners may contact bendix at 1-440-329-9000 or mack at 1-800-528-6586.
- The problem
- On certain trucks, the nut used to retain the steering shaft may or may not be a lock nut that has the locking feature. A lock nut is required to provide additional resistance to ensure that the nut does not come loose.
- The risk
- If the nut were to come loose and be left untreated, the steering shaft could potentially separate increasing the risk of a crash.
- The fix
- Dealers will replace the steering shaft pinch bolts and locknuts free of charge. The recall began on august 24, 2007. Owners may contact mack trucks at 1-800-528-6586.
- The problem
- On certain trucks, the cotter pin that retains the brake pedal clevis pin may not have been installed. The clevis pin connects the brake pedal to the brake foot valve.
- The risk
- If the pin were to come loose, the driver would not be able to apply the service brake, which could result in a crash.
- The fix
- Dealers will inspect to see if the cotter pin is missing. If the pin is missing, the cotter pin will be installed. Owners are being advised not the drive the vehicle until the pin has been installed. The recall began on march 26, 2007. Owner may contact mack truck at 1-800-528-6586.
What owners say
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No complaints about the 2008 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 years2008 Mack GU vs rivals
| Vehicle | Complaints | Recalls | Grade | |
|---|---|---|---|---|
| 2008 Mack GU | 0 | 9 | F | |
| 2008 Mack CL | 1 | 1 | B | 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 2008 Mack GU
Does the 2008 Mack GU have any recalls?
Yes - NHTSA lists 9 recalls for the 2008 Mack GU: flasher unit (April 2014); electrical system (February 2014); cables (May 2011); service brakes, air (September 2010) 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 2008 Mack GU had?
None have been filed with NHTSA so far.
Is the 2008 Mack GU a reliable vehicle?
Its Safety Index is 9 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 2008 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