Page 427 of 470

Black plate (5,1)Cadillac DTS Owner Manual - 2011
Additional Required Services
Every 12 000 km/7,500 Miles
.Rotate tires. Tires should be rotated every
12 000 km/7,500 miles. SeeTire Inspection and
Rotation on page 6‑65.
At Each Fuel Stop
.Engine oil level check. See Engine Oilon
page 6‑15.
.Engine coolant level check. See Engine Coolanton page 6‑26.
.Windshield washer fluid level check. See
Windshield Washer Fluid on page 6‑32.
Once a Month
.Tire inflation pressures check. See Inflation - Tire
Pressure on page 6‑57.
.Tire wear inspection. See Tire Inspection and
Rotation on page 6‑65.
.Sunroof track and seal inspection, if equipped. See
Sunroof on page 3‑56.
Once a Year
.Starter switch check. See Owner Checks and
Services on page 7‑7.
.Automatic transmission shiftlock control function
check. See Owner Checks and Serviceson
page 7‑7.
.Ignition transmission lock check. See Owner
Checks and Services on page 7‑7.
.Parking brake and automatic transmission P (Park)
mechanism check. See Owner Checks and
Services on page 7‑7.
.Accelerator pedal check for damage, high effort,
or binding. Replace if needed.
.Underbody flushing service.
First Engine Oil Change After Every
40 000 km/25,000 Miles
.Passenger compartment air filter replacement (or
every 24 months, whichever occurs first). More
frequent replacement may be needed if you
drive in areas with heavy traffic, areas with
poor air quality, or areas with high dust levels.
Replacement may also be needed if you notice
reduced air flow, windows fogging up, or odors.
Your dealer can help you determine when it is the
right time to replace the filter.
7-5
Page 428 of 470

Black plate (6,1)Cadillac DTS Owner Manual - 2011
First Engine Oil Change After Every
80 000 km/50,000 Miles
.Engine air cleaner filter replacement. SeeEngine
Air Cleaner/Filter on page 6‑19.
.Automatic transmission fluid and filter change
(severe service) for vehicles mainly driven in heavy
city traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used for
taxi, police, or delivery service. See Automatic
Transmission Fluid on page 6‑21.
.Evaporative control system inspection. Check all
fuel and vapor lines and hoses for proper hook‐up,
routing, and condition. Check that the purge valve,
if the vehicle has one, works properly. Replace as
needed. An Emission Control Service. The U.S.
Environmental Protection Agency or the California
Air Resources Board has determined that the
failure to perform this maintenance item will not
nullify the emission warranty or limit recall liability
prior to the completion of the vehicle's useful life.
We, however, urge that all recommended
maintenance services be performed at the
indicated intervals and the maintenance be
recorded.
First Engine Oil Change After Every
160 000 km/100,000 Miles
.Automatic transmission fluid and filter change
(normal service). See Automatic Transmission
Fluid on page 6‑21.
.Spark plug replacement and spark plug wires
inspection. An Emission Control Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
.Engine cooling system drain, flush, and refill
(or every five years, whichever occurs first). See
Engine Coolant
on page 6‑26.An Emission
Control Service.
.Engine drive belts inspection for fraying, excessive
cracks, or obvious damage (or every 10 years,
whichever occurs first). Replace, if needed.
7-6
Page 431 of 470

Black plate (9,1)Cadillac DTS Owner Manual - 2011
Recommended Fluids and
Lubricants
Fluids and lubricants identified below by name, part
number, or specification can be obtained from your
dealer.Usage Fluid/Lubricant
Engine Oil The engine requires engine oil
approved to the dexos™
specification.
Oils meeting this specification can
be identified with the dexos™
certification mark. Look for and use only
an engine oil that displays the dexos™
certification mark of the proper viscosity
grade. See Engine Oil on page 6‑15.
Engine
Coolant 50/50 mixture of clean, drinkable water
and use only DEX-COOL Coolant. See
Engine Coolant on page 6‑26.
Hydraulic
Brake System DOT 3 Hydraulic Brake Fluid
(GM Part No. U.S. 88862806, in
Canada 88862807).
Windshield Washer Optikleen
®Washer Solvent.
Parking Brake Cable Guides Chassis Lubricant (GM Part No.
U.S. 12377985, in Canada 88901242)
or lubricant meeting requirements of
NLGI #2, Category LB or GC-LB.
Usage
Fluid/Lubricant
Power
Steering
System GM Power Steering Fluid
(GM Part No. U.S. 89021184, in
Canada 89021186).
Automatic
Transmission DEXRON
®-VI Automatic Transmission
Fluid.
Key Lock
Cylinders Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Hood Latch Assembly,
Secondary
Latch, Pivots,
Spring Anchor,
and
Release Pawl Lubriplate Lubricant Aerosol
(GM Part No. U.S. 12346293, in
Canada 992723) or lubricant meeting
requirements of NLGI #2, Category LB
or GC-LB.
Hood and
Door Hinges Multi-Purpose Lubricant, Superlube
(GM Part No. U.S. 12346241, in
Canada 10953474).
Weatherstrip Conditioning Weatherstrip Lubricant (GM Part No.
U.S. 3634770, in Canada 10953518)
or Dielectric Silicone Grease
(GM Part No. U.S. 12345579, in
Canada 992887).
7-9