Engine Coolant (3.9L Engine)

The cooling system in the vehicle is filled with DEX-COOL® engine coolant. This coolant is designed to remain in the vehicle for five years or 150,000 miles (240 000 km), whichever occurs first.

The following explains the cooling system and how to check and add coolant when it is low. If there is a problem with engine overheating, see Engine Overheating.

See also:

Airbag System
The vehicle has the following airbags: • A frontal airbag for the driver. • A frontal airbag for the front outboard passenger. • A seat-mounted side impact airbag for the driver. • A ...

Maintenance II
• Perform all services described in Maintenance I. • Steering and suspension inspection. Visual inspection for damaged, loose, or missing parts or signs of wear. • Engine cooling system in ...

The Inside
Buick sells only three models now, and the Lucerne falls in the middle in size, price and interior quality. Of the three large crossover models GM has sold over the past couple years, the Buick En ...