2010 Kenworth T660 Recall

On certain trucks, the warning light for the tractor anti-lock brake system (ABS) may not turn on if the system loses power. If this happens, the driver will not get warning that the ABS is not working properly. Note: This problem would also cause the traction control (TC) and electronic stability control (ESC) lights not to turn on.

If a driver is not warned that the ABS is not working properly, there could be an increased risk of a crash.

PACCAR will notify owners by mail and instruct you to take your truck to a dealer to update the software for the cab control module (CECU).

On certain trucks equipped with a Caterpillar C15 diesel engine, the Diesel Particulate Filter (DPF) combustion tube may fail. This could result in a vehicle fire causing property damage and/or personal injury. Correction: Dealers will replace the DPF combustion tube.

A failure of this component (engine) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with a PACCAR MX engine, the oil module centrifugal spinner filter cap may become loose, possibly allowing the cap to come off and engine oil to partially discharge from the oil module onto nearby exhaust components. The discharge of engine oil onto hot exhaust components could result in a fire causing property damage and/or personal injury. Correction: Dealers will re-torque the oil module filter cap and install a secondary retention device on the secondary centrifugal spinner filter cap.

A failure of this component (engine) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles equipped with the AG400L suspension and air disc brakes, a caliper could be installed on the wrong side of the drive axle. This could cause interference with the suspension bracket and U-bolts as the outermost brake pads wear and the floating caliper moves inboard. As this interference gets larger, it prohibits the movement of the floating caliper, subsequently reducing the outer pad's pressure on the disc which can eventually lead to reduced braking performance and increasing the risk of a crash. Correction: Dealers will inspect and, if necessary, replace one drive axle brake caliper.

A failure of this component (brakes) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks, the weld around the steering shaft tube, which joins the splined tube to the non-splined intermediate tube, may be mislocated. An improperly located weld bead may allow the splined tube and non-splined tube to rotate relative one another during a low speed, high torque turn, resulting in a possible separation of the tubes. This could cause a loss of steering control which could result in a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the steering shaft.

A failure of this component (steering) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks, the retaining pins securing the hood strut tube to the hood strut assembly may become loose and fall out, allowing the lock tube to rotate on the strut assembly. In its normal operation, the safety latch feature is automatically set and prevents the hood from closing. If the retaining pins are missing, the lock tube may rotate relative to the hood strut and become a non-operational safety latch feature. A non-operational safety latch may not be detected by an operator, increasing the risk of personal injury and/or vehicle damage should the hood unexpectedly close. Correction: Dealers will replace the pivot disc and lock tube retaining pins with a revised pivot disc and cap screws.

A failure of this component (other) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles, the rear axle outer end hub may have not been primed with oil properly during the rear axle installation process. Potential lack of oil may cause the outer end bearing to heat up and/or seize, possibly resulting in the overheating of the wheel end. As a result, a wheel end fire may occur, increasing the risk of a crash causing property damage, personal injury or death. Correction: Dealers will replace bearings, seals, and add oil to the outer end hubs. Races and axle housing will be inspected and replaced as necessary.

A failure of this component (suspension) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain vehicles, the fasteners attaching the steering gear to the front drive bracket may have received insufficient torque at assembly, resulting in less than the required clamp load. Insufficient clamp load may allow the fastener (s) to become loose and fall away from vehicle. If multiple fasteners were to become loose, the steering may wander resulting in possible loss of control which could result in a crash causing property damage, personal injury or death. Correction: Dealers will inspect fasteners, replace if necessary and torque them to specifications.

A failure of this component (steering) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).

On certain trucks, the rear axle u-bolts may have received insufficient tightening torque during vehicle assembly. This could allow the u-bolts to loosen over time, which may cause vibration in the rear suspension. If multiple fasteners were to become loose, the U-bolt holding the axle may lose clamp load and the rear axle may shift relative to the rear suspension drive beam, which might result in a crash causing personal injury or death. Correction: Dealers will tighten the axle u-bolts.

A failure of this component (suspension) may increase the risk of a crash or injury.

Authorized dealerships will inspect the vehicle and complete all necessary repairs free of charge (parts and labor).