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:
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.
Chevrolet Sonic. Safety Belts
This section of the manual describes how to use safety belts properly. It also
describes some things not to do with safety belts.
Warning
Do not let anyone ride where a safety belt cannot be worn ...
Seat Ibiza. Lights
Switching lights on and off
Fig. 57 Detailed view of dash panel lights, fog light and rear fog light control
Switching on the side lights
– Turn the light switch ⇒ fig. 57 to position
...
Chevrolet Sonic. Safety Belt Reminders
Driver Safety Belt Reminder Light
There is a driver safety belt reminder light on the instrument cluster.
When the vehicle is started, this light flashes and a chime may come on to remind
the dr ...