Mack Cxu recalls

What is wrong

Mack Trucks, Inc. (Mack) is recalling certain model year 2015 and 2016 CXU and LEU trucks manufactured May 20, 2014, to March 24, 2015, equipped with certain Haldex Life Seal Type 30/30 Long Stroke Air Brake Actuators manufactured from January 9, 2014, through February 3, 2015. The affected actuators may have an incomplete attachment of the internal rubber diaphragm to the actuation mechanism of the parking brake section of the Life Seal actuator.

Risk

If the diaphragm is not completely attached, there may be internal leakage from the service section past the diaphragm, potentially trapping air pressure in the parking brake section. This air pressure in turn, if not vented, may prevent full release of the actuator unit, and may induce brake drag and may result in overheated wheelend service brakes, increasing the risk of a fire.

Remedy

Mack will notify owners, and dealers will inspect the brake actuator and replace, as necessary, free of charge. The recall began March 20, 2015. Owners may contact Mack customer service at 1‑610‑709‑2131. Mack's number for this recall is SC0387.

Recall number 15V025000 · Recall details

What is wrong

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.

Risk

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 may contact Mack customer service at 1‑866‑298‑6586. Mack's number for this recall is SC0379.

Recall number 14V208000 · Recall details

What is wrong

Mack Trucks Inc. (Mack) is recalling certain model year 2010-2015 CXU trucks manufactured November 20, 2009, through January 27, 2014, and equipped with dual vertical exhaust pipes. The white conspicuity reflectors on the rear of the cab could be blocked by the exhaust pipes. As such, these vehicles do not conform to Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk

A blocked reflector makes the truck-tractor less visible when operating the vehicle without a trailer in the dark, increasing the risk of a crash.

Remedy

Mack will notify owners, and dealers will inspect the trucks and if the reflectors are blocked, they will add two vertical white reflectors to the rear glass , free of charge. The recall began on May 30, 2014. Owners may contact Mack Customer Service at 1‑336‑393‑2000. Mack's number for this recall is SC0378.

Recall number 14V205000 · Recall details

What is wrong

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.

Risk

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 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.

Recall number 14V078000 · Recall details

What is wrong

Mack is recalling certain model year 2007-2010 CHU and CXU vehicles, manufactured from October 13, 2006, through December 23, 2009 and equipped with daytime running lights and fog lights. A short in the fog light circuit may cause the low beam headlight circuit to cut out.

Risk

If the low beam headlights go out, the driver may lose visibility, increasing the risk of a crash.

Remedy

Mack will notify owners, and install an additional wiring harness on the affected vehicles, free of charge. The safety recall began on November 14, 2012. Owners may contact Mack Trucks at 1‑800‑866‑1177.

Recall number 12V434000 · Recall details

What is wrong

Mack trucks is recalling certain model year 2010-2011 chu, cxu and gu heavy trucks manufactured from july 12, 2010, through july 23, 2010 for a potentially defective weld on the shaft that the clutch pedal attaches to.

Risk

If the weld fails, the pedal shaft may work its way loose and potentially cause the clutch pedal to fall to the floor, which would limit the driver's control of the vehicle increasing the risk of a crash.

Remedy

Dealers will replace the clutch pedal shaft free of charge. The safety recall began on august 29, 2011. Owners may contact mack trucks at 1‑800‑866‑1177.

Recall number 11V370000 · Recall details

What is wrong

Mack trucks is recalling certain model year 2008-2011 chu and cxu heavy trucks manufactured from january 2008 through july 2010. There may be an interference with the bolts used to secure the fifth wheel to the frame that can prevent the bolts from being torqued to specification.

Risk

The bolts may fail and could result in the fifth wheel coming loose causing the trailer to separate from the tractor increasing the risk of a crash.

Remedy

Dealers will inspect and replace the bolts as required free of charge. The safety recall began on may 30, 2011. Owners may contact mack trucks at 1‑800‑866‑1177.

Recall number 11V209000 · Recall details

What is wrong

Mack trucks is recalling certain model year 2010 through 2011 cxu, heavy trucks manufactured from august 12, 2009, through august 31, 2010. The rear hold-down brackets that secure the battery box lid may be rotated too far forward, which may restrict the battery box lid from properly seating.

Risk

If this occurs, the battery box lid may come off when stepping on the step, which may cause a person to fall from the vehicle resulting in personal injury.

Remedy

Mack will inspect and adjust the rear hold-down brackets as required free of charge. The safety recall began on december 1, 2010. Owners may contact mack trucks at 1‑800‑866‑1177.

Recall number 10V536000 · Recall details

What is wrong

On certain trucks, the bolts that attach the steering gear to the frame may not have been tightened to the specified torque.

Risk

Loss of steering control could occur increasing the risk of a crash.

Remedy

Dealers will tighten the bolts free of charge. The recall began on december 10, 2007. Owners may contact mack trucks at 1‑800‑528‑6586.

Recall number 07V531000 · Recall details

What is wrong

On certain trucks equipped with a saf holland simplex fifth wheel, the lever arm pivot bolt may have been over tightened. An over tightened pivot bolt can distort the pivot bolt spacer sleeve, which may prevent the fifth wheel latch jaw from closing and latching securely around the trailer king pin.

Risk

There is a possibility that the pivot bolt can become loose without the driver's knowledge. When this occurs, the driver could drive away and the trailer could become disengaged, increasing the risk of a crash.

Remedy

Dealers will replace the pivot bolt and sleeve with a hex head shoulder bolt and washer free of charge. The recall began on january 28, 2008. Owners may contact mack trucks at 1‑800‑528‑6586.

Recall number 07V497000 · Recall details

What is wrong

On certain trucks, the daytime running lights (drl) module may contain a suspect metal-oxide-semiconductor field effect transistor (mosfet) that could overheat.

Risk

If the transistor overheats, it could possibly result in a vehicle fire.

Remedy

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.

Recall number 07V478000 · Recall details

What is wrong

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.

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.

Remedy

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.

Recall number 07V361000 · Recall details

What is wrong

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.

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.

Remedy

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.

Recall number 07V360000 · Recall details

What is wrong

On certain trucks, the nut that retains the steering wheel may not have been installed.

Risk

If the retaining nut was not installed, the steering wheel may come off, which could result in a vehicle crash.

Remedy

Dealers will remove the horn button to confirm that the retaining nut was installed. A retaining nut will be added if the nut is missing. The recall began on february 12, 2007. Owners may contact mack trucks at 800‑866‑1177.

Recall number 07V023000 · Recall details