2004 LC 100 89k mi. When I started the truck up this morning (Temp 45*) I heard a small pumping sound comming from the engine compartment. I noticed the brake fluid reservoir bubbling every 4-5 sec. It didn't look like air but fluid being pumped up. Drove for about 2 minutes and ABS light and buzzer sounded. Also TRAC ON TRAC OFF lit up. All went off about 5 minutes later. Any ideas what this issue could be. TIA