Buick 1999 Riviera, Owner'S Manual

Page: 255 / 368

yellow blue
6-23
Checking Coolant
The engine coolant recovery tank is located on the
driver’s side of the engine compartment.
The vehicle must be on a level surface. When your
engine is cold, the coolant level should be at FULL
COLD or a little higher. When your engine is warm, the
level should be up to FULL HOT or a little higher.
If this light comes on and
stays on, it means you’re
low on engine coolant.
Adding Coolant
If you need more coolant, add the proper DEX
-
COOL
R
coolant mixture at the coolant recovery tank, but be
careful not to spill it.
CAUTION:
Turning the radiator pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow out and burn you badly.
With the coolant recovery tank, you will almost
never have to add coolant at the radiator. Never
turn the radiator pressure cap
--
even a
little
--
when the engine and radiator are hot.