ECU Hyundai Santa Fe 2017 Service Manual

Driving your vehicle
116
5
Driving with a trailer
Towing a trailer requires a certain
amount of experience. Before setting
out for the open road, you must get to
know your trailer. Acquaint yourself
with the feel of handling and braking
with the added weight of the trailer.
And always keep in mind that the
vehicle you are driving is now a good
deal longer and not nearly so respon-
sive as your vehicle is by itself.
Before you start, check the trailer
hitch and platform, safety chains,
electrical connector(s), lights, tires
and mirror adjustment. If the trailer
has electric brakes, start your vehicle
and trailer moving and then apply the
trailer brake controller by hand to be
sure the brakes are working. This lets
you check your electrical connection
at the same time.
During your trip, check occasionally
to be sure that the load is secure,
and that the lights and any trailer
brakes are still working.
Following distance
Stay at least twice as far behind the
vehicle ahead as you would when
driving your vehicle without a trailer.
This can help you avoid situations
that require heavy braking and sud-
den turns.
Passing
You’ll need more passing distance
up ahead when you’re towing a trail-
er. And, because of the increased
vehicle length, you’ll need to go
much farther beyond the passed
vehicle before you can return to your
lane. Due to the added load to the
engine when going uphill the vehicle
may also take longer to pass than it
would on flat ground.
Backing up
Hold the bottom of the steering wheel
with one hand. Then, to move the trail-
er to the left, just move your hand to
the left. To move the trailer to the right,
move your hand to the right. Always
back up slowly and, if possible, have
someone guide you.
Making turns
When you’re turning with a trailer,
make wider turns than normal. Do
this so your trailer won’t strike soft
shoulders, curbs, road signs, trees,
or other objects near the edge of the
road. Avoid jerky or sudden maneu-
vers. Signal well in advance before
turning or lane changes.

5127
Driving your vehicle
The label will help you decide how
much cargo and installed equipment
your vehicle can carry.
If you carry items inside your vehicle
- like suitcases, tools, packages, or
anything else - they are moving as
fast as the vehicle. If you have to stop
or turn quickly, or if there is a crash,
the items will keep going and can
cause an injury if they strike the driv-
er or a passenger.
WARNING
Overloading your vehicle cancause heat buildup in your
vehicle's tires and possible
tire failure that could lead to a
crash.
Overloading your vehicle can cause increased stopping dis-
tances that could lead to a
crash.
A crash resulting from poor handling vehicle damage, tire
failure, or increased stopping
distances could result in seri-
ous injury or death.
WARNING - Loose cargo
Items you carry inside your
vehicle can strike and injure
occupants in a sudden stop or
turn, or in a crash.
Put items in the cargo area of your vehicle. Try to spread the
weight evenly.
Never stack items, like suit- cases, inside the vehicle
above the tops of the seats.
Do not leave an unsecured child restraint in your vehicle.
When you carry something inside the vehicle, secure it.
Do not drive with a seat folded down unless necessary.
CAUTION
Overloading your vehicle maycause damage. Repairs wouldnot be covered by your warran-ty. Do not overload your vehicle.

What to do in an emergency
16
6
Removing and storing the
spare tire
Your spare tire is stored underneath
your vehicle, directly below the cargo
area.
To remove the spare tire:
1.Open the liftgate (tailgate).
2.Remove cover with coin or flat-
head screwdriver. 3.Connect the wheel lug nut wrench.
4.Loosen the bolt enough to lower
the spare tire.
Turn the wrench counterclockwise
until the spare tire reaches the
ground.
(Continued)
Do not start or run the enginewhile the vehicle is on the
jack.
Do not allow anyone to remain in the vehicle while it is on the
jack.
Make sure any children pres- ent are in a secure place away
from the road and from the
vehicle to be raised with the
jack.
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621
What to do in an emergency
Then position the wrench as shown
in the drawing and tighten the wheel
nuts. Be sure the socket is seated
completely over the nut. Do not stand
on the wrench handle or use an
extension pipe over the wrench han-
dle. Go around the wheel tightening
every other nut until they are all tight.
Then double-check each nut for
tightness. After changing wheels,
have an authorized HYUNDAI dealer
tighten the wheel nuts to their proper
torque as soon as possible.
Wheel nut tightening torque:
Steel wheel & aluminum alloy wheel:
65~79 lbf·ft (9~11 kgf·m)If you have a tire gauge, remove the
valve cap and check the air pressure.
If the pressure is lower than recom-
mended, drive slowly to the nearest
service station and inflate to the cor-
rect pressure. If it is too high, adjust it
until it is correct. Always reinstall the
valve cap after checking or adjusting
tire pressure. If the cap is not
replaced, air may leak from the tire. If
you lose a valve cap, buy another and
install it as soon as possible.
After you have changed wheels,
always secure the flat tire in its place
and return the jack and tools to their
proper storage locations.
CAUTION
Your vehicle has metric threads
on the wheel studs and nuts.Make certain during wheelremoval that the same nuts thatwere removed are reinstalled -or, if replaced, that nuts withmetric threads and the samechamfer configuration are used.Installation of a non-metricthread nut on a metric stud orvice-versa will not secure thewheel to the hub properly andwill damage the stud so that itmust be replaced.
Note that most lug nuts do nothave metric threads. Be sure touse extreme care in checkingfor thread style before installingaftermarket lug nuts or wheels.If in doubt, consult an author-ized HYUNDAI dealer.
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What to do in an emergency
26
6
When towing your vehicle in an
emergency without wheel dollies :
1. Set the ignition switch in the ACC
position.
2. Place the shift lever in N (Neutral).
3. Release the parking brake.Removable towing hook
(if equipped)
1. Open the liftgate (tailgate), and remove the towing hook from the
tool case.
2. Remove the hole cover pressing the lower part of the cover on the
bumper. 3. Install the towing hook by turning it
clockwise into the hole until it is
fully secured.
4. Remove the towing hook and install the cover after use.
CAUTION
Failure to place the transaxleshift lever in N (Neutral) maycause internal damage to thetransaxle.
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■Front
■Rear

627
What to do in an emergency
Emergency towing (if equipped)
If towing is necessary, we recom-
mend you to have it done by an
authorized HYUNDAI dealer or a
commercial tow truck service.If towing service is not available in an
emergency, your vehicle may be
temporarily towed using a cable or
chain secured to the emergency tow-
ing hook attached to the front (or
under the rear) of the vehicle.
Use extreme caution when towing the
vehicle. A driver must be in the vehi-
cle to steer it and operate the brakes.
Towing in this manner may be done
only on hard-surfaced roads for a
short distance and at low speeds.
Also, the wheels, axles, power train,
steering and brakes must all be in
good condition.
Do not use the tow hooks to pull a
vehicle out of mud, sand or other
conditions from which the vehicle
cannot be driven out under its own
power.
Avoid towing a vehicle heavier than the vehicle doing the towing.
The drivers of both vehicles should communicate with each other fre-
quently. Before emergency towing, check
that the hook is not broken or dam-
aged.
Fasten the towing cable or chain securely to the hook.
Do not jerk the hook. Apply steady and even force.
To avoid damaging the hook, do not pull from the side or at a vertical
angle. Always pull straight ahead.
CAUTION
Attach a towing strap to the tow hook.
Using a portion of the vehicle other than the tow hooks fortowing may damage the bodyof your vehicle.
Use only a cable or chain specifically intended for usein towing vehicles. Securelyfasten the cable or chain tothe towing hook provided.
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■Front
■Rear

727
Maintenance
Vacuum crankcase ventilation
hoses (if equipped)
Inspect the surface of hoses for evi-
dence of heat and/or mechanical
damage. Hard and brittle rubber,
cracking, tears, cuts, abrasions, and
excessive swelling indicate deterio-
ration. Particular attention should be
paid to examine those hose surfaces
nearest to high heat sources, such
as the exhaust manifold.
Inspect the hose routing to assure
that the hoses do not come in con-
tact with any heat source, sharp
edges or moving component which
might cause heat damage or
mechanical wear. Inspect all hose
connections, such as clamps and
couplings, to make sure they are
secure, and that no leaks are pres-
ent. Hoses should be replaced
immediately if there is any evidence
of deterioration or damage.
Air cleaner filter
A Genuine HYUNDAI air cleaner fil-
ter is recommended when the filter is
replaced.
Spark plugs
Make sure to install new spark plugs
of the correct heat range.
Valve clearance
Inspect excessive valve noise and/or
engine vibration and adjust if neces-
sary. An authorized HYUNDAI dealer
should perform the operation.
Cooling system
Check the cooling system parts,
such as radiator, coolant reservoir,
hoses and connections for leakage
and damage. Replace any damaged
parts.
Coolant
The coolant should be changed at
the intervals specified in the mainte-
nance schedule.

737
Maintenance
WASHER FLUID
Checking the washer fluid
level
The reservoir is translucent so that
you can check the level with a quick
visual inspection.
Check the fluid level in the washer
fluid reservoir and add fluid if neces-
sary. Plain water may be used if
washer fluid is not available.
However, use washer solvent with
antifreeze characteristics in cold cli-
mates to prevent freezing.
Checking the parking brake
Check whether the stroke is within
the recommended specification
when the parking brake pedal is fully
engaged. When engaged, the park-
ing brake alone should hold the vehi-
cle securely. If the stroke is more or
less than specified, have the parking
brake adjusted by an authorized
HYUNDAI dealer.
Stroke : 8~9 notchesODMNMC2019
WARNING - Coolant
Do not use radiator coolant orantifreeze in the washer fluid
reservoir.
Radiator coolant can severely obscure visibility when
sprayed on the windshield
and may cause loss of vehicle
control or damage to paint
and body trim.
Windshield Washer fluid agents contain some amounts
of alcohol and can be flamma-
ble under certain circum-
stances. Do not allow sparks
or flame to contact the washer
fluid or the washer fluid reser-
voir. Damage to the vehicle or
occupants could occur.
Windshield washer fluid is poisonous to humans and
animals. Do not drink and
avoid contacting windshield
washer fluid. Serious injury or
death could occur.
PARKING BRAKE
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745
Maintenance
BATTERY
For best battery service
Keep the battery securely mount-ed.
Keep the battery top clean and dry.
Keep the terminals and connec- tions clean, tight, and coated with
petroleum jelly or terminal grease.
Rinse any spilled electrolyte from the battery immediately with a
solution of water and baking soda.
If the vehicle is not going to be used for an extended time, discon-
nect the battery cables.
WARNING- Battery dangers
Always read the follow-
ing instructions carefully
when handling a battery.
Keep lighted cigarettes and all other flames or
sparks away from the
battery.
Hydrogen, a highly com- bustible gas, is always
present in battery cells
and may explode if ignit-
ed.
Keep batteries out of the reach of children
because batteries con-
tain highly corrosive
SULFURIC ACID. Do not
allow battery acid to
contact your skin, eyes,
clothing or paint finish.
(Continued)
(Continued)If any electrolyte getsinto your eyes, flush
your eyes with clean
water for at least 15 min-
utes and get immediate
medical attention.
If electrolyte gets on your skin, thoroughly
wash the contacted area.
If you feel a pain or a
burning sensation, get
medical attention imme-
diately.
Wear eye protection when charging or work-
ing near a battery.
Always provide ventila-
tion when working in an
enclosed space.
An inappropriately dis- posed battery can be
harmful to the environ-
ment and human health.
Dispose the battery
according to your local
law(s) or regulation.
(Continued)
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767
Maintenance
3. Check the removed fuse; replace itif it is blown. To remove or insert
the fuse, use the fuse puller in the
engine compartment fuse panel.
4. Push in a new fuse of the same rating, and make sure it fits tightly
in the clips. If it fits loosely, consult
an authorized HYUNDAI dealer.Multi fuse
If the multi fuse is blown, it must be
removed as follows:
1. Disconnect the negative batterycable.
2. Remove the bolts shown in the picture above.
3. Replace the fuse with a new one of the same rating.
4. Reinstall in the reverse order of removal.
✽ ✽NOTICE
If the multi fuse is blown, consult an
Authorized HYUNDAI Dealer.
Main fuse
If the main fuse is blown, it must be
removed as follows:
1. Disconnect the negative battery
cable.
2. Remove the nuts shown in the pic- ture above.
3. Replace the fuse with a new one of the same rating.
4. Reinstall in the reverse order of removal.
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CAUTION
After checking the fuse box inthe engine compartment,securely install the fuse boxcover. If not, electrical failuresmay occur from water leaking in.