2015 FREIGHTLINER 108SD

TIRES

Daimler Trucks North America, LLC (DTNA) is recalling certain 2012-2021 Freightliner SD 108, Freightliner SD 114, 2016-2020 Freightliner Coronado, 2013 Western Star 6900, 2013-2022 Western Star 4700, Western Star 4900, and 2022 49X vehicles. The tires and rims are not approved and rated for these vehicles from the Tire and Rim Association or tire manufacturer. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 120, "Wheels and Rims-Other Than Passenger Cars."

Risk: Unapproved tires that are not rated for the vehicle can cause tire performance issues, increasing the risk of a crash.

SERVICE BRAKES, AIR:SUPPLY:RESERVOIR/TANK

Daimler Trucks North America LLC (DTNA) is recalling certain 2004-2019 Freightliner 108SD, 114SD, 122SD, Cascadia, Columbia, Classic, FL80, FLD 120SD, Business Class M2, Western Star 4700, 4900, 6900, Sterling Acterra, L7500, LT7500, L8500, LT8500, L9500, and LT9500 vehicles. The vehicles may have an insufficient service brake air reservoir capacity. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."

Risk: An insufficient air reservoir volume may reduce brake effectiveness, increasing the risk of 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, AIR:DISC:CHAMBER

Daimler Trucks North America LLC (DTNA) is recalling certain model year 2015 Freightliner Business Class M2, 108SD, 114SD, 122SD, Coronado, Columbia Glider, Argosy Glider, Western Star 4700, and Western Star 4900 trucks manufactured September 17, 2014, to November 10, 2014 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.