Page 250 of 526

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
Driving and Operating 249
self diagnostic tests that may
occur when a door is opened
or the remote key is present.
{Warning
To avoid personal injury and/
or vehicle damage, always
disconnect the battery
before performing service
work on the hydraulic brake
system. Bleeding the brake
system with the battery
connected can lead to
excessive pressurization of
the system during automatic
diagnostic tests or diagnosis
of a leak or air in the braking
system. A Diagnostic
Trouble Code (DTC) may set
and vehicle speed may be
limited.Brake Cooling (V-Series
Blackwing)
Prior to any track event, high
speed driving event,
or competitive driving,
complete the following:
1. Ensure all the brake cooling parts are correctly
secured and installed.
2. Inspect and replace any deflectors that have
damage.
3. Inspect for blockage in the front brake cooling duct
prior to every event.
4. Remove front tire deflector (if equipped).
If improved brake cooling is
desired on vehicles with
cast-iron brakes (RPO JGH),
install the ball joint protector
front shields, remove both
upper and lower rear rotor
shields, and install the rear
lower control arm cooling
deflectors, per the
instructions included with the
brake cooling kit. These parts are for track use only. After
track events, reinstall the
original front and rear rotor
shields and remove the rear
lower control arm cooling
deflectors.
Right Side Front Shown, Left
Side Front Similar
1. Front Lower Control Arm Deflector
2. Remove –Front Tire
Deflector
Page 253 of 526

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/10/22
252 Driving and Operating
Brake Burnishing
New brake pads must be
burnished before racing or
other competitive driving.
Caution
These procedures are
specific to the V-Series with
performance brake linings
package. This procedure
should not be run on other
models as damage may
result.
Caution
The new vehicle break-in
period should be completed
before performing the brake
burnishing procedure or
damage may occur to the
powertrain/engine. See New
Vehicle Break-In0265.
Caution
Brake pedal fade will occur
during any track burnish
procedure and can cause
brake pedal travel and force
to increase. This could
extend stopping distance
until the brakes are fully
burnished.
When performed as
instructed, these procedures
will not damage the brakes.
During the burnishing
procedure, the brake pads will
smoke and produce an odor.
The braking force and pedal
travel may increase. After the
procedure is complete, the
brake pads may appear white
at the rotor contact.
Perform these procedures in a
safe manner and in compliance
with all local and state
ordinances/laws regarding
motor vehicle operation.
Perform the procedures only
on dry pavement. As with all high performance
brake systems, some amount
of brake squeal is normal.
Street High Performance
Brake Burnishing Procedure
This section is for the V-Series
Blackwing with J57 carbon
ceramic brake rotors only.
This procedure should only be
run on a track or other
non-public area, and only on
dry pavement.
Caution
Brake fade will occur during
this track burnish procedure
and can cause brake pedal
travel and force to increase.
This could extend stopping
distance until the brakes are
fully burnished.
1. From a stop, accelerate as rapidly as possible without
activating traction control
to a speed of 100 km/h
(60 mph).
Page 403 of 526

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
402 Vehicle Care
Brake Rotor Wear
(V-Series Blackwing With
J57 Carbon Ceramic
Rotors)
The V-Series Blackwing with
J57 has carbon ceramic brake
rotors. The rotors should be
visually inspected whenever
the brake pads are replaced.
Carbon ceramic brake 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. Carbon
ceramic brake rotors
inspection and weighing
methods can be found in the
service manual.
V-Series Blackwing Brake
Burnish Procedure for
Corrosion Cleanup
Corrosion spotting and
grooving on the brake rotor
surface may appear after the
vehicle sits for an extended
period of time, especially in
high humidity. This corrosion
may result in brake pulsation
and noise. To help restore
optimal braking performance
and reduce noise, complete
the following procedure:
Caution
Performing the brake
burnish procedure on a base
brake system can result in
brake damage.
Perform this procedure only
on dry pavement, in a safe
manner, and in compliance
with all local and state
ordinances/laws regarding
motor vehicle operation.
Caution
The new vehicle break-in
period should be completed
before performing the brake
burnishing procedure or
damage may occur to the
powertrain/engine. See New
Vehicle Break-In 0265.
Caution
Brake fade can occur during
this burnish procedure and
can cause brake pedal travel
and force to increase. This
could extend stopping
distance until the brakes are
fully burnished.
Completing the following
procedure as instructed will
not damage the brakes. The
brake pads may smoke and
produce an odor. The braking
force and pedal travel may
increase. After the procedure,
the brake pads may appear
white at the rotor contact.
Page 463 of 526

Cadillac CT5 Owner Manual (GMNA-Localizing-U.S./Canada-16500419) -
2023 - CRC - 5/6/22
462 Vehicle Care
Caution
To avoid surface damage on
wheels and wheel trim, do
not use strong soaps,
chemicals, abrasive polishes,
cleaners, or brushes. Use
only GM approved cleaners.
Do not drive the vehicle
through an automatic car
wash that uses silicon
carbide tire/wheel cleaning
brushes. Damage could
occur and the repairs would
not be covered by the
vehicle warranty.
Brake System
Visually inspect brake lines
and hoses for proper hook-up,
binding, leaks, cracks, chafing,
etc. Inspect disc brake pads
for wear and rotors for
surface condition. Inspect
brake linings/shoes for wear
or cracks. Inspect all other
brake parts.
Steering, Suspension, and
Chassis Components
Visually inspect steering,
suspension, and chassis
components for damaged,
loose, or missing parts or signs
of wear at least once a year.
Inspect power steering for
proper attachment,
connections, binding, leaks,
cracks, chafing, etc.
Visually check constant
velocity joint boots and axle
seals for leaks.
Body Component
Lubrication
Lubricate all key lock cylinders,
hood hinges, liftgate hinges,
and the steel fuel door hinges,
unless the components are
plastic. Applying silicone
grease on weatherstrips with
a clean cloth will make them
last longer, seal better, and
not stick or squeak.
Underbody Maintenance
Every six months, use plain
water to flush any corrosive
materials from the underbody.
Take care to thoroughly clean
any areas where mud and
other debris can collect.
Do not directly power wash
the transfer case and/or
front/rear axle output seals.
High pressure water can
overcome the seals and
contaminate the fluid.
Contaminated fluid will
decrease the life of the
transfer case and/or axles and
should be replaced.
Sheet Metal Damage
If the vehicle is damaged and
requires sheet metal repair or
replacement, make sure the
body repair shop applies
anti-corrosion material to
parts repaired or replaced to
restore corrosion protection.