2018 RAM 4500

SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

Chrysler (FCA US, LLC) is recalling certain 2017-2018 Ram 2500 Pickup, Ram 3500 Pickup, 3500 Cab Chassis, 4500 and 5500 Cab Chassis vehicles. The hydraulic control unit (HCU) may fail, which can cause the anti-lock brake (ABS), electronic stability control (ESC), and traction control systems to fail.

Risk: A loss of anti-lock brakes, electronic stability control, or traction control can increase the risk of a crash.

WHEELS:LUGS/NUTS/BOLTS/STUDS

Chrysler (FCA US, LLC) is recalling certain 2012-2021 RAM 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles. Incorrect information in the Service and Owner's Manuals may cause the flanged lug nuts to be over-tightened, which could result in a broken wheel stud and possible wheel separation.

Risk: Wheel separation can cause a vehicle crash.

EXTERIOR LIGHTING:BRAKE LIGHTS

Excellance, Inc. (Excellance) is recalling certain 2018 Ambulances and Emergency Vehicles built on Ford E-350, E-450, F-650, F-550 4x4, Chevrolet G4500, G4500 Diesel, C3500, G3500, Freightliner M2, International 4300, and Dodge 4500 chassis and equipped with Whelen brake lights. Depending on the specific wiring of the vehicle, these brake lights may illuminate when the brake pedal has not been pressed. 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: If the brake lights incorrectly illuminate, it can confuse other drivers, possibly increasing the risk of a crash.

SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:HOSES, LINES/PIPING, AND FITTINGS

Chrysler (FCA US LLC) is recalling certain 2018 RAM 4500 and 5500 cab chassis trucks. The primary and secondary brake hoses located between the brake master cylinder and the hydraulic control unit may have been manufactured without anti-corrosion plating on the ferrules, which can allow the ferrules to corrode.

Risk: If the ferrules corrode, the brake fluid may leak and cause a loss of braking, increasing the risk of a crash.

POWER TRAIN:AUTOMATIC TRANSMISSION

Chrysler (FCA US LLC) is recalling certain 2017-2018 RAM 1500, 2500, 3500, 3500 Cab Chassis, 4500 Cab Chassis, and 5500 Cab Chassis vehicles, all equipped with a column shifter. Pushing the brake pedal for prolonged periods when the vehicle is running and in PARK may cause the Brake Transmission Shift Interlock (BTSI) pin to stick in the open position. With the pin in the open position, the transmission can be shifted out of PARK into any gear without pushing the brake pedal or having the key in the ignition.

Risk: Being able to shift the transmission without pushing the brake pedal and/or without a key in the ignition can increase the risk of an unintended vehicle rollaway that may result in personal injury or a crash.

ELECTRICAL SYSTEM:WIRING

Chrysler (FCA US LLC) is recalling certain 2014-2018 Dodge Journey, Charger and Durango, RAM 2500, 3500, 3500 Cab Chassis (more than 10,000lb), 4500 Cab Chassis and 5500 Cab Chassis, Jeep Cherokee and Grand Cherokee and Chrysler 300, 2014-2019 RAM 1500, 2015-2018 Dodge Challenger, 2015-2017 Chrysler 200, 2016-2018 RAM 3500 Cab Chassis (less than 10,000 lb), 2017-2018 Chrysler Pacifica and 2018 Jeep Wrangler vehicles. These vehicles are being recalled to address a defect that could prevent the cruise control system from disengaging. If, when using cruise control, there is a short circuit within the vehicle's wiring, the driver may not be able to shut off the cruise control either by depressing the brake pedal or manually turning the system off once it has been engaged, resulting in either the vehicle maintaining its current speed or possibly accelerating.

Risk: If the vehicle maintains its speed or accelerates despite attempts to deactivate the cruise control, there would be an increased risk of a crash.

ENGINE AND ENGINE COOLING

The contact owns a 2018 Ram 4500. The contact stated that while driving 40 MPH, the check engine warning light and other unknown warning lights were illuminated, before the vehicle lost motive power. The vehicle was taken to a dealer, where it was diagnosed that the turbo had failed, and there were 39 diagnostic trouble codes retrieved. The dealer determined that the turbo, the intake manifold sensor, the exhaust pressure sensors, and other unknown parts needed to be replaced. The vehicle was repaired; however, the failure reoccurred four months later. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. Additionally, the contact stated that while driving 15 MPH to park the vehicle, while her husband and dog were occupying the passenger’s side seat, the brake pedal was depressed, but the vehicle failed to respond and struck one of the contact's parked vehicles. The contact stated that the dog sustained injuries after being thrusted forward. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unknown.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2018 Ram 4500. The contact stated that while driving 40 MPH, the check engine warning light and other unknown warning lights were illuminated, before the vehicle lost motive power. The vehicle was taken to a dealer, where it was diagnosed that the turbo had failed, and there were 39 diagnostic trouble codes retrieved. The dealer determined that the turbo, the intake manifold sensor, the exhaust pressure sensors, and other unknown parts needed to be replaced. The vehicle was repaired; however, the failure reoccurred four months later. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); however, the part to do the recall repair was not yet available. Additionally, the contact stated that while driving 15 MPH to park the vehicle, while her husband and dog were occupying the passenger’s side seat, the brake pedal was depressed, but the vehicle failed to respond and struck one of the contact's parked vehicles. The contact stated that the dog sustained injuries after being thrusted forward. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was unknown.