2009 Mack Gu Recalls, Complaints & Specs
7 safety recalls list the 2009 Mack Gu, and owners have filed 1 complaint with NHTSA. Check your own VIN below.
7 safety recalls for the 2009 Mack Gu
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Flasher unit (exterior lighting)
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.
Remedy: 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,…
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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, 2014 to include certain model year…
Remedy: 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…
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Electrical system
Mack Trucks is recalling certain model year 2008-2009 GU, LEU, and MRU trucks, manufactured from December 12, 2007, through May 8, 2008 and equipped with a certain focal mounted retarder control box. The control box may lose its electrical ground.
Remedy: All affected vehicles were sold to one customer that has already been notified. An official owner notification letter will be mailed to the one customer in early November 2012. Mack will replace the suspect control box…
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Cables (electrical system)
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…
Remedy: 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…
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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 systems."
Remedy: 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.
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Headlights (exterior lighting)
Mack is recalling certain my 2009 trucks equipped with hella headlamps for failing to comply with the photometric output requirements of federal motor vehicle safety standard no. 108, 'lamps, reflective devices, and associated equipment." the headlamp's bulb shield may not have been completely seated into the headlamp's reflector.
Remedy: Dealers will inspect the headlamps for the suspect date codes and replace as required free of charge. The recall began on september 8, 2008. Owners may contact mack trucks at 1-800-528-6586.
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Air (parking brake)
Mack is recalling 66 my 2009 gu trucks equipped with bendix mv-3 dash control valves. The molded valve body has an incorrect core pin in the injection mold causing the valve body to be oversized in the double check valve area. This condition can allow the rubber double check valve to become lodged in the body opening under certain…
Remedy: Dealers will inspect the mv-3 dash valve for the production date code. Valves in the affected production lots will be replaced free of charge. The recall began on may 9, 2008. Owners may contact mack trucks at…
1 owner complaint filed with NHTSA
Owners of the 2009 Mack Gu have filed 1 complaint with NHTSA. The average mileage at failure in those reports is 58,500 miles. Complaints peaked in 2018 with 1 filed that year.
Most-reported components
What owners are reporting
“Vehicle having electrical issues, lights and radio shutting off and exhaust engine break working intermittently. Hooked up and mostly data link codes. Ic cluster lights flash on and off while hooked u”
Owner complaint to NHTSA, September 18, 2018 · Engine
Compare Mack Gu model years
Recall and complaint counts for every Mack Gu model year in NHTSA's database.
| Model year | Recalls | Complaints |
|---|---|---|
| 2007 Mack Gu | 2 | 0 |
| 2008 Mack Gu | 9 | 0 |
| 2009 Mack Gu | 7 | 1 |
| 2010 Mack Gu | 4 | 1 |
| 2011 Mack Gu | 5 | 0 |
| 2013 Mack Gu | 0 | 1 |
| 2014 Mack Gu | 0 | 1 |
| 2015 Mack Gu | 0 | 1 |
| 2018 Mack Gu | 0 | 1 |
Checking a specific 2009 Mack Gu
How do I know if my 2009 Mack Gu has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 7 campaigns currently list the 2009 Mack Gu; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Mack dealer with your VIN and the NHTSA campaign number (for example 08V177000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Mack models
- Mack28 complaints
- Anthem (an)12 complaints
- Granite (gr)9 complaints
- CXU6127 complaints
- Ch6 complaints
- CH6005 complaints
- Cxu5 complaints
- Rd5 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.