Riviera V6-231 3.8L VIN L SFI (1991)
![background image](/buick/riviera/v6-231_3.8l_vin_l_sfi/Page-717001.png)
Coolant Level Indicator Lamp: Description and Operation
Some vehicles use a buzzer or indicator lamp to indicate a low coolant level condition. The buzzer or lamp is activated by a sensor, located in the
radiator, when the coolant level becomes one quart or more low.