Chevrolet 2010 Corvette Owner's Manual page 351

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Brake pads should be replaced when worn to
two mm of pad thickness. New pads are 10 mm thick.
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In addition, brake pad inspection is required any time
the tires are removed.
The ZR1 also has an electronic brake pad wear sensor
system. When pads are worn, the CHANGE BRAKE
PADS message displays in the Driver Information
Center. See DIC Warnings and Messages on page 4-51.
Some driving conditions or climates can cause a brake
squeal when the brakes are first applied or lightly
applied. This does not mean something is wrong with
the brakes.
Brake linings should always be replaced as complete
axle sets.
Brake Rotor Wear
ZR1 models have ceramic brake rotors. Rotors should
be visually inspected whenever the brake pads are
replaced. Rotors also need to be weighed before brake
pads are replaced to confirm that the rotor mass is
greater than the wear-out mass printed on the rotor.
The rotor can be reused if the weight of the rotor
is above the mass limit. Rotor inspection and weighing
methods can be found in the service manual. See
Service Publications Ordering Information on page 8-17.
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