2007 CADILLAC SRX trailer

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal
down while you:
start your engine,
shift into a gear, and
release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the
chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when
you’re pulling a trailer. SeeScheduled
Maintenance on page 471for more information.
Things that are especially important in trailer
operation are automatic transmission uid (don’t
overll), engine oil, axle lubricant, drive belt,
cooling system and brake system. Each of these
is covered in this manual, and the Index will
help you nd them quickly. If you’re trailering, it’s
a good idea to review this information before
you start your trip.
Check periodically to see that all hitch nuts and
bolts are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat
during severe operating conditions. SeeEngine
Overheating on page 372.
341

Fuel
Use of the recommended fuel is an important part
of the proper maintenance of your vehicle. To
help keep your engine clean and maintain optimum
vehicle performance, GM recommends the use
of gasoline advertised as TOP TIER Detergent
Gasoline.
The 8th digit of your Vehicle Identication Number
(VIN) shows the code letter or number that
identies your engine. You will nd the VIN at the
top left of the instrument panel. SeeVehicle
Identication Number (VIN) on page 453.
Gasoline Octane
If your vehicle has the 3.6L V6 engine
(VIN Code 7), use regular unleaded gasoline
with a posted octane rating of 87 or higher. For best
performance or trailer towing, you may choose to
use middle grade 89 octane unleaded gasoline.If the octane rating is less than 87, you may notice
an audible knocking noise when you drive,
commonly referred to as spark knock. If this occurs,
use a gasoline rated at 87 octane or higher as soon
as possible. If you are using gasoline rated at
87 octane or higher and you hear heavy knocking,
your engine needs service.
If your vehicle has the 4.6L V8 engine (VIN Code
A), use premium unleaded gasoline with a posted
octane rating of 91 or higher. You may also use
regular unleaded gasoline rated at 87 octane or
higher, but your vehicle’s acceleration may be
slightly reduced, and you may notice a slight
audible knocking noise, commonly referred to as
spark knock. If the octane is less than 87, you may
notice a heavy knocking noise when you drive. If
this occurs, use a gasoline rated at 87 octane or
higher as soon as possible. Otherwise, you might
damage your engine. If you are using gasoline
rated at 87 octane or higher and you hear heavy
knocking, your engine needs service.
349

If No Steam Is Coming From Your
Engine
An overheat warning, can indicate a serious
problem.
If you get an engine overheat warning but see or
hear no steam, the problem might not be too
serious. Sometimes the engine can get a little too
hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of
steam, try this for a minute or so:
1. In heavy traffic, let the engine idle in
NEUTRAL (N) while stopped. If it is safe to
do so, pull off the road, shift to PARK (P)
or NEUTRAL (N) and let the engine idle.
2. Set the climate controls to the highest heat
setting and fan speed and open the windows,
as necessary.If the coolant warning light is not on or the coolant
temperature gage does not indicate the engine
is overheating, you can drive. Just to be safe, drive
slower for about 10 minutes. If the warnings do
not come back on, drive normally.
If the warnings continue and you have not stopped,
pull over, stop, and park the vehicle right away.
If there is still no sign of steam, idle the engine for
three minutes while parked. If the warnings are
still indicated, turn off the engine and get everyone
out of the vehicle until it cools down. Also, see
“Overheated Engine Protection Operating Mode”
later in this section.
You might decide not to lift the hood but to get
service help right away.
373

Overheated Engine Protection
Operating Mode
This operating mode allows your vehicle to be
driven to a safe place in an emergency. Should an
hot engine condition exist, an overheat protection
mode which alternates ring groups of cylinders
helps prevent engine damage. In this mode, there is
a loss in power and engine performance. Driving
extended miles (km) and/or towing a trailer in the
overheat protection mode should be avoided.
Notice:After driving in the overheated engine
protection operating mode, to avoid engine
damage, allow the engine to cool before
attempting any repair. The engine oil will be
severely degraded. Repair the cause of coolant
loss and change the oil. SeeEngine Oil on
page 360.
Cooling System
When you decide it is safe to lift the hood, here is
what you will see:
A. Electric Engine Cooling Fans
B. Coolant Surge Tank and Pressure Cap
Some vehicles may be equipped with an
engine driven fan, as well as the electric
pusher fans (A) which are located behind the
vehicle’s grille.
3.6L V6 shown, 4.6L V8 similar
374

Mini Fuses Usage
RSM Rear Seat Module, Flip/Fold Motors
DRIVER DR
MODDriver Door Module (Locks, Outside
Rearview Mirror, Window Switches)
STOP LAMPS Not Used
MARKER
LAMPLicense Lamps
LH PRK POS
LAMPSLeft Side Taillamp, Left Side Front
Park Lamps, Sidemarker Lamps
RH PRK
LAMPSRight Side Taillamp, Right Side
Front Park Lamps, Sidemarker
Lamps
TRLR PRK
LAMPSTrailer Park Lamps
SPARE Spare
SPARE Spare
SPARE Spare
MEMORY RPAMemory Seat Module, Ultrasonic
Rear Parking Assist (URPA) Module
APO Rear Auxiliary Power Outlet
PRK LAMP LH
POSPark Lamp Relay
REAR FOG
LAMPNot Used
RH POS LAMP Right Side TaillampJ Case Fuses Usage
SPARE Spare
ELCElectronic Level Control (ELC)
Compressor
Circuit
BreakersUsage
PWR WNDWS Power Window Motors
Misc. Usage
FUSE PULLER Fuse Puller
JOINT
CONNECTORJoint Connector
461

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated
miles (kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage or
leaks.• •••••
Inspect exhaust system for loose or
damaged components.• •••••
Replace engine air cleaner lter. See
Engine Air Cleaner/Filter on page 365.•••
For vehicles used for trailer towing:
Change transfer case uid.•••
Change automatic transmission uid
and lter (severe service).
See footnote (h).•••
Change automatic transmission uid
and lter (normal service).•
Replace spark plugs.An Emission
Control Service.•
473

(c)Visually inspect hoses and have them replaced
if they are cracked, swollen, or deteriorated.
Inspect all pipes, ttings and clamps; replace with
genuine GM parts as needed. To help ensure
proper operation, a pressure test of the cooling
system and pressure cap and cleaning the outside
of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or
cracking. Replace wiper blades that appear worn
or damaged or that streak or miss areas of
the windshield.
(e)Make sure the safety belt reminder light and all
your belts, buckles, latch plates, retractors, and
anchorages are working properly. Look for
any other loose or damaged safety belt system
parts. If you see anything that might keep a safety
belt system from doing its job, have it repaired.
Have any torn or frayed safety belts replaced. Also
look for any opened or broken airbag coverings,
and have them repaired or replaced. The
airbag system does not need regular maintenance.(f)Lubricate all key lock cylinders, hood latch
assemblies, secondary latch, pivots, spring anchor,
release pawl, hood hinges, body door hinges,
rear compartment hinges, sunroof tracks, and any
folding seat hardware. More frequent lubrication
could be required when exposed to a corrosive
environment. Applying silicone grease on
weatherstrips with a clean cloth will make them
last longer, seal better, and not stick or squeak.
See Weatherstrips on page 447.
(g)A uid loss in any vehicle system could
indicate a problem. Have the system inspected
and repaired and the uid level checked. Add uid
if needed.
(h)Change automatic transmission uid and lter
if the vehicle is mainly driven under one or
more of these conditions:
In heavy city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
475

Tires (cont.)
Tire Terminology and Denitions............... 404
Uniform Tire Quality Grading.................... 419
Wheel Alignment and Tire Balance........... 420
Wheel Replacement................................. 421
When It Is Time for New Tires................. 416
Winter Tires............................................. 400
Tow/Haul Mode........................................... 126
Tow/Haul Mode Light................................... 213
Towing
Recreational Vehicle................................. 328
Towing a Trailer....................................... 331
Your Vehicle............................................. 328
Traction
Control System (TCS).............................. 281
Control System Warning Light.................. 206
Limited-Slip Rear Axle.............................. 283
Magnetic Ride Control.............................. 283
StabiliTrak
®System................................. 283
Transmission
Fluid, Automatic....................................... 367
Transmission Operation, Automatic.............. 122
Turn and Lane-Change Signals................... 168
Turn Signal/Multifunction Lever.................... 167
U
Ultrasonic Rear Parking Assist (URPA)........ 184
Understanding Radio Reception................... 270
Uniform Tire Quality Grading....................... 419
Universal Home Remote System................. 143
Operation........................................144, 150
V
Vehicle
Control..................................................... 278
Damage Warnings....................................... 5
Loading.................................................... 322
Symbols...................................................... 5
Vehicle Customization, DIC......................... 231
Vehicle Data Collection and Event
Data Recorders........................................ 498
Vehicle Identication
Number (VIN).......................................... 453
Service Parts Identication Label.............. 453
Ventilation Adjustment.................................. 194
Visors.......................................................... 112
521