2011 MACK GU — Problems, Recalls & Safety Data
N/A
Safety Rating
0
Owner Complaints
5
Recalls
19
Service Bulletins
0
Investigations
Overview of the 2011 MACK GU
The 2011 MACK GU has received a total of 0 safety complaints filed with the National Highway Traffic Safety Administration (NHTSA). There have been 5 recall campaigns affecting this vehicle, covering issues with EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT, ELECTRICAL SYSTEM, SERVICE BRAKES, AIR:SLACK ADJUSTERS:AUTOMATIC. 19 technical service bulletins have been issued by MACK TRUCKS, INC for this model year.
Recalls for the 2011 MACK GU
NHTSA has recorded 5 recalls for the 2011 MACK GU, potentially affecting up to 116,919 vehicles.
Recall 14V208000 — EXTERIOR LIGHTING:TURN SIGNAL:FLASHER UNIT
| 44,047 vehicles affected
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.
Consequence: A failure of the hazard warning lights could reduce the trucks visibility, increasing the risk of a crash.
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...
View full details →Recall 14V078000 — ELECTRICAL SYSTEM
| 70,208 vehicles affected
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,...
Consequence: Deposits of contaminants may result in the circuits being bridged, creating a high resistance short, increasing the risk of a fire.
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...
View full details →Recall 11V272000 — SERVICE BRAKES, AIR:SLACK ADJUSTERS:AUTOMATIC
| 1,524 vehicles affected
Defect: 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...
Consequence: SLACK ADJUSTERS WITH THIS FLOW NOTCH COULD CRACK UNDER NORMAL BRAKING CONDITIONS CAUSING LOSS OF BRAKING WHICH COULD RESULT IN A VEHICLE CRASH.
Remedy: 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.
View full details →Recall 11V292000 — ELECTRICAL SYSTEM:12V/24V/48V BATTERY:CABLES
| 771 vehicles affected
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...
Consequence: A SHORT CAN POTENTIALLY CAUSE A VEHICLE FIRE.
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.
View full details →Recall 10V404000 — SERVICE BRAKES, AIR
| 369 vehicles affected
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."
Consequence: IF THE BRAKES DO NOT PERFORM AS THEY SHOULD, A VEHICLE CRASH COULD OCCUR.
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.
View full details →Owner Complaints for the 2011 MACK GU
No complaints have been filed with NHTSA for the 2011 MACK GU.
Safety Rating for the 2011 MACK GU
NHTSA has not yet tested the 2011 MACK GU in its New Car Assessment Program.
Technical Service Bulletins for the 2011 MACK GU
MACK TRUCKS, INC has issued 19 technical service bulletins (TSBs) for the 2011 MACK GU. TSBs are notices sent by manufacturers to their dealers describing a known issue and the recommended repair procedure.
K77864401 — FUEL SYSTEM, GASOLINE
Mack Chassis - Diesel Exhaust Fluid ( DEF ) System Cleaning/Flush After A Pump Failure or System Contamination.Removed Tech Tip, Added correct operation ID
FSB 513-001 — SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE
BRAKE ELECTRONIC CONTROL UNIT (ECU), REPROGRAMMING (MID 136) CERTAIN MACK CHU, CXU, AND GU TRUCKS EQUIPPED WITH THE BASIC ESP PACKAGE (ZMX-A1X), AND BUILT BETWEEN JANUARY 1, 2010 AND NOVEMBER 9, 2014, MAY ACTIVATE AN MID 136 ANTI-LOCK BRAKE SYSTEM (ABS) SID 66 FMI 7 OR BENDIX DTC 20-8 CODE...
FSB 253-002 — ENGINE
ENGINE BRAKE LOSS. CERTAIN EURO 4 MACK VEHICLES BUILT FROM JANUARY 14, 2010 TO FEBRUARY 15, 2014 MAY EXPERIENCE ENGINE BRAKE LOSS IN TOP GEAR. CHECK THE ENGINE ECU DATASET 2 PART NUMBER AND COMPARE TO THE CHART BELOW.
PI-0845 — ELECTRICAL SYSTEM:SOFTWARE
MACK: WHEN SUSPENSION IS LEFT DUMPED, NO WARNING LIGHT, ROAD SPEED LIMIT OR BUZZER DUE TO SOFTWARE IN VEHICLE ELECTRONIC CONTROL UNIT (VECU) IS NOT SUPPORTING VENDOR ENGINES AND NEEDS REPROGRAMMING. MODEL 2011-2013 GU, CXU. *PE
PI-0767 — SUSPENSION:FRONT:CONTROL ARM
MACK TRUCKS: SLACK ADJUSTER CONTROL ARM. HALDEX SLACK ADJUSTERS AND RIDEWELL SUSPENSION MAY EXHIBIT A CONDITION WHICH ALLOWS THE SLACK ADJUSTER CONTROL ARM TO MAKE CONTACT WITH THE RIDEWELL SUSPENSION WALKING BEAM DURING STEEP SUSPENSION ARTICULATION. *JS UPDATED 06/28/13. *PE UPDATED 12/19/13. *PE UPDATED 08/09/2014 *JS
FSB-284-044 — ENGINE
MACK: UNDER CERTAIN CONDITIONS, HIGHER THAN EXPECTED TURBOCHARGER WHEEL SPEED, UNEVEN ENGINE SPEED, LOW T2 TEMPERATURES, HIGH ENGINE LOAD, MAY HAVE REGENERATION SERVICE FAILURES. MODEL CXU, GU. NO YEARS LISTED. *PE
PI 0767 — SUSPENSION
CERTAIN GU MODEL CHASSIS EQUIPPED WITH HALDEX SLACK ADJUSTERS AND RIDEWELL SUSPENSION WITH BUILD DATES BETWEEN FEBRUARY 1 AND MARCH 24, 2010, MAY EXHIBIT A CONDITION WHICH ALLOWS THE SLACK ADJUSTER CONTROL ARM TO MAKE CONTACT WITH THE RIDEWELL SUSPENSION WALKING BEAM DURING STEEP SUSPENSION ARTICULATION
PI-0798 — SUSPENSION:REAR:SHOCK ABSORBER
MACK TRUCKS: INFORMATION ON REPLACEMENT PROCEDURES FOR THE SLACK ADJUSTER CONTROL ARM AND SUSPENSION SHOCK ABSORBER INTERFERENCE ON REAR/REAR DRIVE AXLE. MODEL GU. NO MODEL YEARS LISTED. *PE
PI-0795 — ENGINE AND ENGINE COOLING:ENGINE:DIESEL
MACK TRUCK: AFTERTREATMENT DIESEL PARTICULATE FILTER (DPF) INLET PIPE MAY POSSIBLY EXHIBIT AN EXHAUST LEAK. TO IMPROVE SEALING FUNCTION OF DPF INLET PIPE, THE DPF INLET PIPE FLANGE WAS MODIFIED. MODEL GU. MODEL YEARS 2011-12. *PE
FSB-258-033 — ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER
MACK TRUCKS: ENGINE TUBOCHARGER COMPRESSOR BYPASS VALVE, AIRLINE ROUTING. THIS DOCUMENT COVERS THE PROCEDURE FOR ROUTING THE FLEXIBLE AIR LINE AROUND THE FRONT OF THE ENGINE IF THE EXISTING STEEL AIR LINE FAIL. *JS
Showing 10 of 19 technical service bulletins.
NHTSA Investigations for the 2011 MACK GU
There are no NHTSA defect investigations on record for this vehicle.
Other Model Years of the MACK GU
- 2006 MACK GU — 0 complaints
- 2007 MACK GU — 0 complaints
- 2008 MACK GU — 0 complaints
- 2009 MACK GU — 1 complaint
- 2010 MACK GU — 2 complaints
- 2011 MACK GU (current)
- 2012 MACK GU — 0 complaints
- 2013 MACK GU — 1 complaint
- 2014 MACK GU — 1 complaint
- 2015 MACK GU — 1 complaint
- 2016 MACK GU — 0 complaints
Other MACK Models
- MACK MACK — 35 total complaints
- MACK ANTHEM (AN) — 12 total complaints
- MACK CXU612 — 12 total complaints
- MACK CX613 — 10 total complaints
- MACK GRANITE (GR) — 10 total complaints
- MACK CH600 — 9 total complaints
- MACK RD — 8 total complaints
- MACK CXU — 7 total complaints