2015 FREIGHTLINER BUSINESS CLASS M2

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE

Daimler Trucks North America, LLC (DTNA) is recalling certain 2015-2020 Freightliner Business Class M2 emergency vehicles equipped with certain Cummins diesel engines. The engine protection and inducement software may cause the engine to shut down unexpectedly.

Risk: An unexpected engine shutdown can delay emergency responders and increase the risk of injury.

POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES

Daimler Trucks North America, LLC (DTNA) is recalling certain 2014-2019 Freightliner Business Class M2 vehicles. The retaining clip that connects the transmission oil cooler line to the in-tank oil cooler may fail, possibly resulting in a transmission fluid leak.

Risk: If a rapid loss of transmission fluid occurs while driving, it could result in a road hazard for other motorists, increasing the risk of a crash.

EXTERIOR LIGHTING

Daimler Trucks North America LLC (DTNA) is recalling certain 2006-2020 Freightliner Columbia, 2006-2021 Freightliner Business Class M2, 2007-2020 Freightliner Coronado, 2014-2021 Freightliner 122 SD, 2007 Sterling A 9500, 2006 Freightliner Argosy, 2006-2007 Sterling AT9500, 2008-2021 Freightliner Cascadia, 2006-2008 Freightliner Classic, 2006-2011 Freightliner Century Class, 2006-2010 Freightliner FLD, and 2017 Western Star 5700 vehicles. The rear reflective tape may be partially covered by the mudflap hanger bracket, which may reduce the vehicle's visibility to other drivers on the road. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 108, "Lamps, Reflective Devices, and Associated Equipment."

Risk: The vehicle's rearward visibility may be reduced, increasing the risk of a crash.

STEERING:LINKAGES:TIE ROD ASSEMBLY

Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2015 Freightliner Cascadia, Coronado, Business Class M2, 114SD, and Western Star 4900 trucks. In certain front axle, brake lining, and brake spider combinations, braking may cause high vibrations, resulting in early failure of the tie-rod tube.

Risk: A tie-rod failure would cause a disconnect between the front wheels, resulting in a loss of steering ability, thereby increasing the risk of a crash.

SERVICE BRAKES, AIR

Daimler Trucks North America (DTNA) is recalling certain 2015-2017 Freightliner M2 Business Class, 108SD, and 114SD vehicles. The affected vehicles might not have a required check valve installed in one of the ports of the spring brake modulation valve. Without the valve, the primary air system is not isolated from the secondary air system.

Risk: A rapid loss of air pressure in the secondary system could cause a similar rapid loss of pressure in the primary system, which may lead to a sudden application of the parking brakes. This could increase the risk of a crash.

SERVICE BRAKES, AIR:DISC:CALIPER

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2010-2017 Freightliner M2 Business Class, 108SD, 114SD, and Columbia trucks manufactured from January 6, 2010, through February 29, 2016, equipped with certain Bendix rear disk brakes and spring suspensions. The rear disk brake caliper may have been installed incorrectly, thus allowing the caliper to contact the suspension.

Risk: Caliper contact with the spring suspension may reduce the braking effectiveness, increasing the risk of a crash.

POWER TRAIN:AXLE HUBS

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2017 Freightliner M2 Business Class, 108 SD, 114 SD, Cascadia, Coronado, Western Star 4700, 4800, and 5700 XE trucks manufactured March 15, 2013, to July 29, 2016 and equipped with Conmet aluminum non-high capacity hubs. These vehicles specify a front axle weight limit that may be greater than that of the hub capacity. As a result, the hub may fail and the wheel may separate from the axle.

Risk: If a wheel separates from the axle, there would be an increased risk of a crash.

SERVICE BRAKES, AIR

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Cascadia, Business Class M2, 108SD, 114SD, 122SD, Coronado, Western Star 4700, and Western Star 4900 trucks manufactured October 6, 2014, to February 16, 2015, and equipped with Haldex Life Seal brake chambers. The affected vehicles may experience brake drag due to an improperly seated diaphragm in the brake chamber.

Risk: While traveling at highway speeds, brake drag may cause loss of vehicle control, increasing the risk of a crash.

POWER TRAIN:AXLE ASSEMBLY

Daimler Trucks North America, Inc. (DTNA) is recalling certain model year 2015-2016 Freightliner 108SD, 114SD, Business Class M2, and Western Star 4900 vehicles manufactured September 26, 2014, to November 6, 2015, and equipped with certain drive axles manufactured by Marmon-Herrington. The affected axles have hex nuts on the flange yoke that may not have been properly tightened.

Risk: If the hex nuts are not tightened to specification, the driveshaft may disconnect from the drive axle, resulting in a loss of propulsion and increasing the risk of a crash.

POWER TRAIN:MANUAL TRANSMISSION

Daimler Trucks North America, LLC (DTNA) is recalling certain model year 2015-2016 Freightliner Cascadia, Business Class M2, 108SD, 114SD, and Western Star 4700 trucks manufactured January 4, 2015, to April 24, 2015, and equipped with Eaton Fuller FR 10-speed manual transmissions. In the affected vehicles, when the transmission shift lever is moved from reverse to neutral, the reverse gear may stay engaged. When the transmission shift lever is moved from reverse to a forward gear position, the transmission may mechanically lock because both the reverse gear and forward gear are simultaneously engaged.

Risk: Even though the transmission has been shifted out of reverse into neutral, the vehicle may unexpectedly move backwards, increasing the risk of a crash.

SUSPENSION:REAR

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2014-2016 Freightliner Business Class M2, 108SD, and 114SD trucks manufactured April 30, 2013, to September 14, 2015. Due to incorrect positioning, the rear disk brake calipers may contact the spring suspension reducing rear brake performance.

Risk: A reduction in braking performance can increase the risk of a crash.

SERVICE BRAKES, HYDRAULIC

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2 vehicles manufactured June 4, 2014, to December 1, 2014 that are equipped with hydraulic brakes and a Bosch Hydro-Max Brake Boost Pump. Due to an incompatibility between the boost pump switch and the instrument cluster, certain instrument display brake warnings may not illuminate correctly when there is a problem with the brake system.

Risk: If the instrument panel doesn't display warnings, the driver may be unaware that braking force is reduced, increasing the risk of a crash.

POWER TRAIN:CLUTCH ASSEMBLY

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2 trucks manufactured May 27, 2014, to September 25, 2014, and equipped with certain models of Eaton Fuller 365mm clutches. Due to an incorrect clutch-release bearing component, the affected clutches may not disengage as needed.

Risk: The loss of clutch function could cause unintended motion or extend stopping distance, increasing the risk of vehicle crash.