VOLVO VNM

STEERING

Volvo Trucks North America (Volvo) is recalling certain 2016 Volvo VNL and VNM trucks equipped with certain Dana Spicer D-Series and E-Series steer axles. The castellated nut on the steer axles may not be properly torqued, allowing the tie rod to loosen.

Risk: If the tie rod loosens, it may disconnect from the steering knuckle, causing a complete loss of steering, increasing the risk of a crash.

STEERING

Volvo Trucks North America, (Volvo) is recalling certain model year 2013 VNM and VNL trucks manufactured April 16, 2012, to May 4, 2012. These vehicles are equipped with certain Meritor FF967 non-drive front steer axles that may have been incorrectly heat treated.

Risk: The improperly heat treated axles may fracture, resulting in a loss of vehicle control and increasing the risk of a crash.

STEERING

Volvo Trucks North America (Volvo) is recalling certain model year 2016-2017 VNL, VNX, and VNM trucks manufactured from May 11, 2015, through April 18, 2016. The trucks may have been manufactured without a roll pin on the steering shafts. If the roll pin is missing, the lower steering shaft may disconnect from the junction block. Also, the bolt connecting the upper steering shaft to the lower steering shaft may not have been properly tightened. Either condition can lead to separation of the steering shaft.

Risk: Separation of the steering shaft will result in complete loss of steering which may lead to a vehicle crash.

SUSPENSION:FRONT:CONTROL ARM:UPPER BALL JOINT

Volvo Trucks North America (Volvo) is recalling certain model year 2009-2010 VT trucks manufactured from April 9, 2008, through September 24, 2009, and certain 2016 model VNL and VNM trucks manufactured from January 2, 2015, through to November 6, 2015. The affected vehicles are equipped with USK non-greasable drag links that may experience corrosion of the ball joints due to the seals being compromised, possibly resulting in accelerated wear and failure of the ball joint.

Risk: Failure of the ball joint may cause separation of the socket and a complete loss of steering, increasing the risk of a crash.

SUSPENSION:FRONT:HUB

Volvo Trucks North America (Volvo) is recalling certain 2017 Volvo VHD, VNL, and VNM trucks manufactured February 19, 2016, to June 21, 2016. The affected vehicles were built with front wheel hubs that cannot support the gross axle weight rating of the front axle.

Risk: Overloaded front wheel hubs can result in premature failure of the hubs, bearings, and the related components, which can cause the front hub assembly to separate from the front axle. Because of this, the driver may lose control of the vehicle or parts may be dropped on the road, increasing the risk of a crash.

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.

ENGINE AND ENGINE COOLING:ENGINE

Volvo Trucks North America (Volvo) is recalling certain model year 2012-2016 VNM trucks manufactured March 21, 2011, to April 30, 2015. Excessive engine crankcase pressures may cause the 90-degree elbow of the vent tube assembly to detach from the crankcase ventilation breather, possibly allowing engine oil to come into contact with hot surfaces.

Risk: If engine oil comes into contact with a hot surface, there could be an increased risk of a fire.

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.

TRAILER HITCHES:FIFTH WHEEL ASSEMBLY

Volvo Trucks North America (Volvo) is recalling certain model year 2011-2013 VNL and VNM trucks manufactured June 21, 2010, to December 14, 2012. The affected trucks are equipped with Fontaine Ultra LT Fifth Wheel connectors, which, due to cumulative damage to the fifth wheel and its locking mechanism, have a locking mechanism that may fail to operate or to properly engage.

Risk: If the fifth wheel and locking mechanism are sufficiently damaged, the locking mechanism may fail to operate as intended and the trailer may unexpectedly detach from the tractor, increasing the risk of a crash.