2014 VOLVO VNL

SERVICE BRAKES, AIR

Volvo Trucks North America (Volvo) is recalling certain model year 2013-2017 VNL and VNM trucks and certain model year 2017 VNX trucks. In the affected vehicles, incorrect software for controlling the electronic air dryer may result in oil and water contaminating the brake system.

Risk: If the brake system becomes contaminated, braking performance could be affected, increasing the risk of a crash.

SERVICE BRAKES

Volvo Trucks North America (Volvo) is recalling certain model year 2012-2015 VNL and VNM trucks manufactured May 31, 2011, to December 1, 2014. In the affected trucks, the trailer hand brake handle may not to return to the off position due to being restricted by the cut out in the trim panel.

Risk: If the brake handle does return to the off position, the trailer service brakes may drag causing the wheel end to overheat and potentially cause a wheel end fire or tire blowout. Either condition increases the risk of a crash.

ELECTRICAL SYSTEM

Volvo Trucks North America (Volvo) is recalling certain model year 2012-2014 Volvo VNL trucks manufactured December 1, 2011, to September 1, 2013, equipped with certain Electric Auxiliary Power Units (APU), part number BA600, manufactured by Idle Free Systems (IFS). The affected APUs have metal housings whose mounting points may crack and tear. Additionally, the mounting bolts of the power units may loosen or possibly fail.

Risk: If the mounting points crack and tear or the attaching bolts loosen or fail, the power unit may detach from the truck, becoming a road hazard and increasing the risk of a crash.

TIRES

Volvo Trucks North America (Volvo) is recalling certain model year 2011-2014 VAH and VNL trucks manufactured May 12, 2010, to October 31, 2014. The affected vehicles may experience premature tire failure during certain operating conditions such as high speeds, heavy load, and high road temperature.

Risk: Premature tire failure could increase the risk of a vehicle crash.

ENGINE AND ENGINE COOLING:ENGINE

Volvo Trucks North America (Volvo) is recalling certain model year 2013-2015 VNL trucks, and 2013-2014 VNM trucks equipped with certain Cummins Westport Model ISL G and ISX12 G engines. Condensation in the intake manifold may freeze during cold weather conditions and interfere with the proper operation of the intake manifold pressure sensor.

Risk: The improper operation of the sensor could induce elevated exhaust temperatures or flames from the exhaust pipe, increasing the risk of a vehicle fire or burn injury to a person near the exhaust pipe.

POWER TRAIN:AUTOMATIC TRANSMISSION

Volvo Trucks North America (Volvo) is recalling certain model year 2012, 2014-2015 VHD, 2012-2015 VNL, and 2014-2015 VNM trucks manufactured June 16, 2011, to August 18, 2014, and equipped with the Eco-Roll option. The affected trucks may fail to re-engage the vehicle drivetrain after using the Eco-Roll feature.

Risk: If the drivetrain does not re-engage, the vehicle's stopping distance may be lengthened, increasing the risk of a crash.

SERVICE BRAKES, AIR:DISC:CALIPER

Volvo Trucks North America (Volvo) is recalling certain model year 2014-2015 VAH, VNL, and VNM trucks manufactured March 4, 2013, to April 28, 2014. Due to the bolts holding the disc brake caliper to the backing plate not being tightened to the specified torque, the disc brake caliper may detach from the backing plate.

Risk: If the disc brake caliper detaches from the backing plate it can affect the brakes to that particular wheel causing the vehicle to "pull" to the left or right, increasing the risk of a crash.

FORWARD COLLISION AVOIDANCE: CRASH IMMINENT BRAKING

Volvo Trucks of North America (Volvo) is recalling certain model year 2011-2015 VNL and 2014-2015 VNM trucks manufactured November 17, 2010, through February 5, 2014, and equipped with enhanced cruise control and without side fairings. In the affected vehicles, the active braking component of the enhanced cruise control can become disabled.

Risk: If the active braking feature becomes disabled, the vehicle may not automatically activate the brakes as intended when the enhanced cruise control system is in use, thereby increasing the risk of a crash.

SEAT BELTS

Volvo Trucks North America (Volvo) is recalling certain model year 2014 VAH, VHD, VNL, and VNM trucks manufactured August 12, 2013, through November 14, 2013; and equipped with IMMI-brand L9 seat belt buckles. When the button is pressed to release the seat belt, the latch plate can become partially engaged with the buckle, making the seat belt difficult to unlatch. Thus, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard (FMVSS) No. 209, "Seat Belt Assemblies."

Risk: If the latch plate remains partially engaged after the button is pressed, egress from the vehicle could be hindered which would increase the risk of injury in the event of an emergency.

POWER TRAIN:CLUTCH ASSEMBLY

Volvo Trucks North America (Volvo) is recalling certain model year 2007-2014 VAH, VHD, VNL, VNM, and VT models. The affected vehicles were built without a redundant clutch disengagement switch. Without a redundant switch, a loss of signal from the brake air pressure switch can prevent the clutch from automatically disengaging when the brake is applied.

Risk: Without a signal to disengage the clutch when the brakes are applied, the distance required to stop the truck may lengthen, increasing the risk of a crash.

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

Volvo is recalling certain model year 2012-2014 VHD, VNL, and VNM trucks, manufactured from April 18, 2011, through March 14, 2013, and equipped with a horizontally mounted remote battery disconnect switch. The remote battery disconnect switch was manufactured with incorrect hardware allowing the cables to loosen. Additionally, as mounted, the cables may vibrate and chafe.

Risk: Loose or chafed cables may lead to overheating of the battery cable and switch which may result in a fire.