Western Star · Canada · High
Western Star 4700, 5700: Lights and Instruments
Affects Western Star 4700, 5700 · 2022 — about 170 vehicles.
The hazard
Issue: On certain trucks, the tail lamps on the trailer do not turn on when the daytime running lamps (DRLs) are on. New Canadian regulations require that, if a vehicle has dash backlighting, the low beam headlamps and tail lamps must automatically switch on when it is dark or the tail lamps must stay on at all times. Safety Risk: Driving without tail lamps in low light conditions could make the truck less visible and increase the risk of a crash. Corrective Actions: Daimler Trucks North America (DTNA) will notify owners by mail and instruct you to take your truck to a DTNA authorized service facility to install a jumper harness.
What to do
Contact your dealer; the remedy details were not included in the filing.