Hi. Just discovered this 2 days ago. When I put the high-beams on, only one of them comes on. However both bulbs light up when in DRL mode.
I understand that the same halogen bulb is used for both DRL and highbeams, so what might be causing this??

One other piece of information: when I switch the headlights off from high beam mode (ie highbeams to DRL), DRL light on the dashboard comes on for 1 or 2 seconds and then comes off.