Chevrolet Sonic Owner's Manual: Brake Fluid
The brake/clutch master cylinder reservoir is filled with DOT 3 brake fluid as indicated on the reservoir cap. See Engine Compartment Overview for the location of the reservoir.
There are only two reasons why the fluid level in the reservoir might go down:
- The fluid level goes down because of normal brake lining wear. When new linings are installed, the fluid level goes back up.
- A fluid leak in the brake/clutch hydraulic system can also cause a low fluid level. Have the brake/ clutch hydraulic system fixed, since a leak means that sooner or later the brakes and/or clutch will not work well.
Do not top off the brake/clutch fluid. Adding fluid does not correct a leak. If fluid is added when the linings are worn, there will be too much fluid when new brake linings are installed. Add or remove brake fluid, as necessary, only when work is done on the brake/clutch hydraulic system.
Warning
If too much brake fluid is added, it can spill on the engine and burn, if the engine is hot enough. You or others could be burned, and the vehicle could be damaged. Add brake fluid only when work is done on the brake/clutch hydraulic system.
When the brake/clutch fluid falls to a low level, the brake warning light comes on. See Brake System Warning Light.
Replacing Brake System Parts
The braking system on a vehicle is complex. Its many parts have to be of top
quality and work well together if the vehicle is to have really good braking. The
vehicle was designed and tested with ...
What to Add
Use only new DOT 3 brake fluid from a sealed container. See Recommended Fluids
and Lubricants.
Always clean the brake/clutch fluid reservoir cap and the area around the cap
before removing it. Th ...
Other materials:
Blower Motor Replacement
Removal Procedure — Production Blower Motor
Remove the passenger side instrument panel insulator. Refer to Instrument
Panel Insulator Replacement.
Remove the passenger side inflatable restraint instrument panel lower
module. Refer to Instrument Panel Lower Airbag Replaceme ...
Ignition and Start Switch Replacement
Ignition and Start Switch Replacement
Callout
Component Name
Preliminary Procedures
Disconnect the battery negative cable. Refer to Battery Negative
Cable Disconnection and Connection.
Remove the ignition and start switch ...
Drive Range, First Gear (Gen 2)
As the vehicle speed increases, the transmission control module (TCM) receives
input signals from the automatic transmission input and output speed sensors, throttle
position sensor and other vehicle sensors to determine the precise moment to de-energize
or ?urn OFF?the shift solenoid, and to ...
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