More recalls were announced last week of trucks with Bendix ATR-6 traction relay valves.
In very cold weather, intermittent air leakage in these valves can affect braking action, but service brakes and anti-lock functions continue, Bendix says.

In extremely cold conditions, the Bendix valves may potentially develop internal leakage, leading to air pressure being delivered to the brake, causing continuous brake application. This can cause the brakes to overheat and lead to a fire, or cause the driver to lose control. The brakes also may be applied without illuminating the brake lights, posing a danger to other drivers.

Navistar is recalling 18,959 vehicles. It affects model year 2012-2013 IC Bus HC and International 9400 trucks; model year 2011-2013 DuraStar, PayStar, WorkStar, TranStar, LoneStar, ProStar, 9200 and 9800 trucks; and model year 2013 International 9900 vehcls, manufactured from Dec. 2, 2010, through Jan. 26, 2013.

Autocar is recalling 269 model year 2011-2012 ACX Class 8 vehicles, manufactured from Dec. 22, 2010, through Dec. 4, 2011.

Caterpillar is recalling 104 model year 2012-2013 CT660 trucks, manufactured from Dec. 2, 2010, through January 26, 2012.

Dealers will provide a free temporary fix while Bendix works to develop a permanent remedy.

Earlier this month, Volvo announced a recall of up to 22,383 model year 2011-2012 Volvo VHDs and model year 2011-2013 Volvo VNLs and VNMs, manufacturing from Dec. 2, 2010 through Jan. 18, 2012.

Paccar also previously announced a recall.

Daimler Trucks North America does not use the valves, so Freightliner and Western Star brand trucks are not affected.

For more information, see Bendix's website at www.bendix.com/en/servicessupport/recallcenter/recallcenter_1.jsp.