Tesla MODEL S 2012 Owner's Manual page 177

Check the fluid level visually by looking at the outside
marks on the side of the reservoir without removing the
filler cap.
The brake fluid level should always be between the MIN
and the MAX marks.
NOTE: Although brake fluid level drops slightly during
normal use as a result of brake pad wear, it should not
drop below the MIN mark.
Topping Up the Brake Fluid
Do not top up your brake fluid. The following
instructions are provided for information purposes and
future reference only:
1. Clean the filler cap before removing it to prevent dirt
from entering the reservoir.
2. Unscrew the cap and remove it.
3. Top up the reservoir to the MAX mark using the
appropriate brake fluid.
4. Reinstall the filler cap, ensuring it is fully secured.
WARNING: Only use new fluid from a sealed air-
tight container. Never use previously used fluid or
fluid from a previously opened container—fluid
absorbs moisture which decreases braking
performance.
WARNING: Brake fluid is highly toxic. Keep
containers sealed and out of the reach of children.
In the event of accidental consumption, seek
medical attention immediately.
CAUTION: Brake fluid damages painted surfaces.
Immediately soak up any spills with an absorbent
cloth and wash the area with a mixture of car
shampoo and water.
Maintenance
Fluid Reservoirs
Topping Up Windshield Washer
Fluid
The only reservoir into which you can add fluid is the
windshield washer fluid reservoir, which is located
behind the front trunk. When the level is low, a message
displays on the instrument panel.
To top up the washer fluid:
1. Open the hood.
2. Clean around the filler cap before opening it to
prevent dirt from entering the reservoir.
3. Open the filler cap.
4. While avoiding spilling, fill the reservoir until the fluid
level is visible just below the filler neck.
5. Wipe up any spills immediately and wash the
affected area with water.
6. Reinstall the filler cap.
NOTE: Some national or local regulations restrict the use
of Volatile Organic Compounds (VOCs). VOCs are
commonly used as antifreeze in washer fluid. Use a
washer fluid with limited VOC content only if it provides
adequate freeze resistance for all climates in which you
drive Model S.
CAUTION: Do not add formulated washer fluids
that contain water repellent or bug wash. These
fluids can cause streaking, smearing, and
squeaking or other noises.
WARNING: In temperatures below 40° F (4° C),
use a washer fluid with antifreeze. In cold weather,
using a washer fluid without antifreeze can impair
visibility through the windshield.
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