Removal Procedure

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.

Partially drain the cooling system. Refer to Draining and Filling Cooling System .
Remove the battery. Refer to BATTERY REPLACEMENT .
Disconnect the electrical connector from the coolant level module.
IMPORTANT: In order to unlock the coolant level module, lift one leg of the snap clip from its locked position and pull outward with a slight twisting motion.
Remove the coolant level module.

Fig 1: Coolant Level Module
Courtesy of GENERAL MOTORS CORP.