Battery - North America - Chevrolet 4500 HD 2023 Manual

Tighten the cap securely after the fluid has
been added.
When adding brake fluid to the tank, take
care to prevent dirt and water from entering
it. Any dirt or water in the system could
cause the vehicle to lose braking functions.
Inspect and change brake fluid according to
the Maintenance Schedule.
Use the recommended brake fluid when
adding brake fluid.
Never mix the specified brake fluid with
fluids of another brand.
Be careful not to spill brake fluid onto
painted surfaces or to let it come in contact
with skin. If fluid is spilled onto a painted
surface or comes in contact with skin, wash
away the fluid with water and immediately
wipe the area clean.
Brake fluid readily absorbs moisture.
Therefore, it is necessary to close the brake
fluid container tightly for storage.
If the brake fluid level decreases rapidly,
there may be a problem in the brake
system or brake pads or shoe linings may
have worn out. Have your vehicle inspected
by the nearest dealer immediately.

Battery - North America

Working Near Battery
The batteries are located on the outboard
side of the left frame rail, behind the cab.
The batteries are in a carrier with the
cover (2) retained by spring clips (1).
Danger
Follow the precautions listed in the jump
starting Danger (see "When the Battery is
Discharged") when working on or near
the battery. Personal injury (particularly
to eyes) or property damage may result
Danger (Continued)
from battery explosion, battery fluid or
electrical (short circuit) burns. You and
others could be seriously injured or killed.
If the negative cable is disconnected from
the negative terminal on the battery within
3 minutes after turning the engine control
switch to the "LOCK" position, the engine
control module may malfunction.
Checking the Battery
Your new vehicle is equipped with DELKOR
batteries. They need no periodic electrolyte
level maintenance. Its top is permanently
sealed (except for two small vent holes) and
has no filler caps. You will never have to
add water. Remember to check and recharge
the battery as necessary, as well as keep
connection clean.
The hydrometer (green-eye test indicator) in
the top of each battery (if equipped)
provides information for testing
purposes only.
If the vehicle is not going to be driven for
30 days or longer, disconnect the ground
cable from the negative ( ) terminal of the
(Continued)
batteries to prevent discharge.
Vehicle Care 261