BELLEVUE, WA — Truck manufacturer Paccar is recalling about 21,000 Kenworth and Peterbilt chassis because of door latch issues and seat belt buckle issues.

The first recall is for 11,056 model year 2013-2014 Kenworth T680 chassis manufactured Jan. 1, 2012 through Oct. 14, 2013, and Peterbilt 567 and 579 chassis manufactured Jan. 20, 2012 through Oct. 11, 2013, and equipped with Inteva-brand door latch assemblies.

In the affected vehicles, the doors may lock permanently while closed or may be opened from the outside even after they have been locked, truckinginfo explains. What that means is that the door could get stuck, trapping the truck driver inside the vehicle – a serious danger in case of a crash or fire.

The folks at Paccar will notify truck owners, and dealers will replace the left and right door latch assemblies with new assemblies for free. The recall is expected to begin by the end of February.

Kenworth’s number for this recall is 14KWB. Peterbilt’s number for this recall is 114-A.

But Paccar is also is recalling another 10,414 model year 2014 Kenworth T660, T680, T700,T800, T880, W900, T440, T470, T370, T270, T170, C500, and C550 chassis manufactured between Aug. 7, 2013 and Oct. 31, 2013, and Peterbilt 320, 325, 330, 337, 348, 365, 367, 382, 384, 386, 388, 389, and 587 chassis manufactured between Aug. 7, 2013 and Nov. 3, 2013, and equipped with IMMI-brand L9 seat belt buckles.

These models have an issue when the button is pressed to release the seat belt because the latch plate can become partially engaged with the buckle, making the seat belt difficult to unlatch. Because of this issue, these vehicles fail to conform to the requirements of Federal Motor Vehicle Safety Standard No. 209, Seat Belt Assemblies, which state that if the latch plate remains partially engaged after the button is pressed, egress from the vehicle could be hindered, which would increase the risk of injury in the event of an emergency.

This recall is also expected to begin by the end of February 2014 and Paccar will again notify owners, and dealers will inspect and replace the seat belt buckles, as necessary for free.

Kenworth’s number for this campaign is 14KWC. Peterbilt’s number for this campaign is 114-B.

Owners of any of the vehicles for either recall may contact Paccar at 1-425-468-7400 or the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236.