2006 Buick Terraza Owner's Manual - Page 342

6. Start the engine and let it run until you can feel the upper radiator hose getting hot. Watch out for the engine cooling fans. 7. By this time, the coolant level inside the radiator filler neck may be lower. If the level is lower, add more of the proper DEX-COOL® coolant mixture through the filler neck until the level reaches the base of the filler neck. 8. Then replace the pressure cap. At any time during this procedure if coolant begins to flow out of the filler neck, reinstall the pressure cap. If your vehicle has the 3.5L V6 engine, be sure the arrow on the pressure cap lines up with the vent tube. 5-36 9. Then fill the coolant recovery tank to the full cold mark. 10. Put the cap back on the coolant recovery tank.