Cadillac CT4 Owner's Manual page 361

Cadillac CT4 Owner Manual (GMNA-Localizing-MidEast-15283644) - 2022 -
CRC - 7/28/21
Check parking brake and automatic
transmission park mechanism. See
Park Brake and P (Park) Mechanism
Check 0 307.
Check accelerator pedal for damage,
high effort, or binding. Replace if
needed.
Check drive and accessory belts, (AC
compressor, generator). Check
condition and check length as
shown on length indicators.
Visually inspect gas strut for signs
of wear, cracks, or other damage.
Check the hold open ability of the
strut. If the hold open ability is low,
service the gas strut. See Gas
Strut(s) 0 308.
Inspect sunroof track and seal,
if equipped. See Sunroof 0 27.
Additional Required Services
Normal Service
Every 10 000 km
Replace passenger compartment air
filter. Or every 12 months,
whichever comes first. More
frequent passenger compartment air
filter replacement may be needed if
driving in areas with heavy traffic,
poor air quality, high dust levels,
or environmental allergens.
Passenger compartment air filter
replacement may also be needed if
there is reduced airflow, window
fogging, or odors. Your GM dealer
can help determine when to replace
the filter.
Every 20 000 km
Replace windshield wiper blades. Or
every 12 months, whichever comes
first. See Wiper Blade Replacement
0 307.
Every 80 000 km
Change rear axle fluid, if equipped
with limited slip differential.
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 transfer case fluid.
Contaminated fluid will decrease
the life of the transfer case and/or
axles and should be replaced.
Every 90 000 km
Replace spark plugs. Inspect spark
plug wires and/or boots.
SERVICE AND MAINTENANCE
Every 120 000 km
Replace hood and/or body lift
support gas struts. Or every
10 years, whichever comes first. See
Gas Strut(s) 0 308.
Every 160 000 km
Replace transfer case fluid.
(If equipped with AWD)
Every 240 000 km
Change rear axle fluid, without
limited slip differential.
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 transfer case fluid.
Contaminated fluid will decrease
the life of the transfer case and/or
axles and should be replaced.
Change front axle fluid. If equipped
with AWD.
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 transfer case fluid.
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