GM Service Manual Online
For 1990-2009 cars only

Warning: Refer to Brake Fluid Irritant Warning in the Preface section.

Warning: Refer to Brake Fluid Warning in the Preface section.

Caution: Refer to Filling the Master Cylinder Caution in the Preface section.

Caution: Refer to Brake Fluid Damage to Electrical Connections Caution in the Preface section.

Caution: Refer to Brake Fluid Effects on Paint and Electrical Components Caution in the Preface section.

Caution: Refer to Clutch Hydraulic System Lubricant Caution in the Preface section.

Caution: Refer to Using Proper Power Steering Fluid Caution in the Preface section.

Master cylinder fluid should meet the DOT 3 specification. Use DOT 4 for heavy duty applications, such as trailer towing or mountain driving.

Use only clear fluid from a sealed container. Fluid that is exposed to the air will absorb moisture. Water in the master cylinder fluid will cause the fluid to boil and the rubber components to deteriorate.

Thoroughly clean the master cylinder reservoir cap before removing it. Do not let any dirt or foreign material fall into the fluid reservoir.

There is a fluid level switch in the master cylinder reservoir. When the fluid level is low, the brake lamp in the instrument cluster will turn ON. The correct master cylinder fluid level is marked on the left side of the master cylinder reservoir. If the fluid level is below the MIN indicator mark, check the hydraulic brake system for leaks, and then refill the reservoir to the MAX indicator mark.