GM Service Manual Online
For 1990-2009 cars only

Caution: Do not overfill the brake fluid reservoir. Overfilling the brake fluid reservoir may cause the brake fluid to overflow onto the engine exhaust components during brake system service. The brake fluid is flammable and may cause a fire and personal injury if the brake fluid contacts the engine exhaust system components.

The master cylinder reservoir is on the master cylinder. The reservoir is located under the hood on the left side of the vehicle. The master cylinder reservoir contains enough fluid so that the reservoir does not need service under normal conditions. A low fluid sensor in the master cylinder will warn of a low fluid level.

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Object Number: 179703  Size: SH
  • Clean the reservoir cap before removal in order to prevent dirt from entering the reservoir.
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  • Remove the twist cap and the diaphragm.
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  • Do not fill the reservoir past the maximum fill level.
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  • When the reservoir is full, install the cap and the diaphragm.