RoadVitals

2009 Mack Gu Recalls

Safety recall campaigns filed with NHTSA that cover this model year

Data refreshed

Recalls apply to specific vehicles, not to every vehicle of a model year. Check your VIN with NHTSA or your manufacturer's dealer to confirm whether a recall affects your vehicle.

Check a VIN on NHTSA.gov
Recall campaignsA safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
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Newest Apr 18, 2014
Carrying an NHTSA advisoryCampaigns where NHTSA told owners not to drive the vehicle, or to park it outside, until the repair is done.
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Open investigationsNHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
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1 investigation on file

Recall campaigns

7 campaigns cover this model year — what the defect is, what it could cause, and what the remedy is

14V208000

EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT

Apr 18, 2014
44,047 units potentially affected
The defect: 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 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, 2014. Owners may contact Mack customer service at 1-866-298-6586. Mack's number for this recall is SC0379.
Mack Trucks, Inc.Manufacturer number SC0379View on NHTSA.gov
14V078000

ELECTRICAL SYSTEM

Feb 21, 2014
70,208 units potentially affected
The defect: 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 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 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.
Mack Trucks, Inc.Manufacturer number SC0375View on NHTSA.gov
12V519000

ELECTRICAL SYSTEM

Oct 18, 2012
260 units potentially affected
The defect: 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.
The risk: If the control box loses ground, it may have localized overheating. This could lead to a vehicle fire.
The 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 on the affected vehicles, free of charge. Owners may contact Mack Trucks at 1-800-866-1177.
MACK TRUCKS, INCManufacturer number SC0366View on NHTSA.gov
11V292000

ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES

May 20, 2011
771 units potentially affected
The defect: 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 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 1-800-866-1177.
MACK TRUCKS, INCManufacturer number SC0354View on NHTSA.gov
10V404000

SERVICE BRAKES, AIR

Sep 7, 2010
369 units potentially affected
The defect: 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 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.
MACK TRUCKS, INCManufacturer number SC0345View on NHTSA.gov
08V331000

EXTERIOR LIGHTING:HEADLIGHTS

Jul 23, 2008
265 units potentially affected
The defect: 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.
The risk: THIS STANDARD SPECIFIES REQUIREMENTS FOR REQUIRED ORIGINAL AND REPLACEMENT LAMPS, REFLECTIVE DEVICES, AND ASSOCIATED EQUIPMENT AND THEIR INSTALLATION. THE PURPOSE IS TO REDUCE TRAFFIC CRASHES, DEATHS AND INJURIES RESULTING FROM CRASHES BY PROVIDING ADEQUATE ILLUMINATION OF THE ROADWAY, AND ENHANCING THE CONSPICUITY OF MOTOR VEHICLES ON THE PUBLIC ROADS SO THAT THEIR PRESENCE IS PERCEIVED AND THEIR SIGNALS UNDERSTOOD, BOTH IN DAYLIGHT AND IN DARKNESS OR OTHER CONDITIONS OF REDUCED VISIBILITY.
The 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.
MACK TRUCKS, INCManufacturer number SC0340View on NHTSA.gov
08V177000

PARKING BRAKE:CONVENTIONAL:AIR

Apr 17, 2008
66 units potentially affected
The defect: 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 CIRCUMSTANCES.
The risk: IF THE DOUBLE CHECK VALVE BECOMES LODGED, IN THE EVENT OF A PRIMARY RESERVOIR FAILURE, AIR PRESSURE CAN LEAK PAST THE LODGED DOUBLE CHECK VALVE THEREBY DEPLETING THE SECONDARY RESERVOIR, CAUSING REDUCED ABILITY FOR MODULATING THE SERVICE EMERGENCY BRAKES INCREASING THE RISK OF A CRASH.
The 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 1-800-528-6586.
MACK TRUCKS, INCManufacturer number SC0339View on NHTSA.gov

What a recall is

Safety recall
A safety recall is issued when a manufacturer or NHTSA determines that a vehicle has a safety-related defect or does not comply with a federal motor vehicle safety standard. Recall repairs are free. Whether a specific vehicle is covered depends on its VIN — a recall listed for a model year does not necessarily apply to every vehicle of that year.
Safety investigation
NHTSA opens an investigation to examine whether a safety defect may exist. An open investigation is not a determination that a defect exists, and many investigations close without a recall. Investigations can, however, lead to one.
Manufacturer communication
Manufacturers file copies of the bulletins they send to dealers with NHTSA. These often describe diagnostic or repair procedures for a known condition. They are not recalls: repairs described in a bulletin are usually only free if the vehicle is still under warranty or the manufacturer has extended coverage.

Safety investigations

NHTSA inquiries naming this vehicle. An investigation is not a finding of a defect, and it is not a recall.

PE09010ClosedPreliminary Evaluation

AIR BRAKE CONTROL VALVE

Opened Feb 13, 2009
Closed Jun 18, 2009

ODI IS CLOSING THIS PRELIMINARY EVALUATION AND OPENING AN ENGINEERING ANALYSIS (EA09-009) TO FURTHER IDENTIFY AND EVALUATE THE VEHICLE ENVIRONMENT AND BRAKE SYSTEM FACTORS THAT MAY BE CAUSING OR CONTRIBUTING TO EXTENDED STOPPING DISTANCE PERFROMANCE IN CERTAIN VEHICLES.

SERVICE BRAKES, AIR:CONTROLS

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .