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Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off.Put the radiator cap back on
tightly. Run the engine, and check
the temperature gauge. If it goes
back to the red mark, the engine
needs repair (see
on page ).
If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
Start the engine, and set the
temperature to maximum heat
(climate control to AUTO at
‘‘ ’’). Add coolant to the
radiator up to the base of the f iller
neck. If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and ref illed with
the proper mixture as soon as you
can.
If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank (see page
). Add coolant if the level is
below the MIN mark.
If there was no coolant in the
reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the pointer
reaches the middle of the
temperature gauge or lower
bef ore checking the radiator.
7. 6.
8.
9. 10.
11.
482
353
Emergency
Towing
If theEngineOverheats
470
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.
2010 TSX
Page 474 of 524

Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning indicators.
Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(seeon page
).
This indicator should never come on
when the engine is running. If it
starts flashing or stays on, the oil
pressure has dropped very low or
lost pressure. Serious engine
damage is possible, and you should
take immediate action.
You will also see a ‘‘CHECK
ENGINE OIL LEVEL’’ message on
the multi-information display when
this indicator comes on.
If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
You will also see a ‘‘CHECK
CHARGING SYSTEM’’ message on
the multi-information display (see
page ).
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
Go to a service station or garage
where you can get technical
assistance.
1.
2.
3.
4.
61
352
415
482 Emergency T owing
L ow Oil Pressure
Indicator
Charging System
Indicator
L ow Oil Pressure Indicator, Charging System Indicator
T aking Care of t he Unexpect ed
471
Running the engine with low oil
pressure can cause serious mechanical
damage almost immediately. Turn of f
the engine as soon as you can saf ely get
the vehicle stopped.
2010 TSX
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If this indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your vehicle’s perf ormance, it can
reduce your f uel economy and cause
increased emissions. Continued
operation may cause serious damage.
If you have recently ref ueled your
vehicle, the indicator coming on
could be due to a loose or missing
f uel f ill cap. Tighten the cap until it
clicks at least once. Tightening the
cap will not turn the indicator of f
immediately; it can take several days
of normal driving. To check if they are set, turn the
ignition switch to the ON (II)
position, without starting the engine.
The malf unction indicator lamp will
come on f or 20 seconds. If it then
goes of f , the readiness codes are set.
If it blinks f ive times, the readiness
codes are not set. If possible, do not
take your vehicle f or an emissions
test until the readiness codes are set.
Refer to
for
more information (see page ).
If the indicator comes on repeatedly,
even though it may turn of f as you
continue driving, have your vehicle
checked by the dealer as soon as
possible. If your vehicle has an automatic
transmission, the malf unction
indicator lamp may also come on
with the ‘‘D’’ indicator.
You will also see a ‘‘CHECK
EMISSION SYSTEM’’ message on
the multi-information display (see
page ).
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are notset, the test cannot be completed.
If the battery in your vehicle has
been disconnected or gone dead,
thesecodesmaybeerased.Itcan
take several days of driving under
various conditions to set the codes
again.
60 503
Emissions T esting
Readiness Code
Malf unction Indicator L amp
472
If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.
2010 TSX
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If you must drive the vehicle a short
distance in this condition, drive
slowly and caref ully. Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed and repaired as
soon as possible (seeon page ).
If the ABS indicator and the VSA
system indicator come on with the
brake system indicator, have your
vehicle inspected by your dealer
immediately.
The brake system indicator normally
comes on when you turn the ignition
switch to the ON (II) position, and as
a reminder to check the parking
brake. It will stay on if you do not
f ully release the parking brake.
If the brake system indicator comes
on while driving, the brake f luid level
is probably low. Press lightly on the
brake pedal to see if it f eels normal.
If it does, check the brake f luid level
thenexttimeyoustopataservice
station (see page ). If the f luid level is low, take your
vehicle to a dealer, and have the
brake system inspected f or leaks or
worn brake pads.
However, if the brake pedal does not
f eel normal, you should take
immediate action. A problem in one
part of the system’s dual circuit
design will still give you braking at
two wheels. You will f eel the brake
pedal go down much f arther bef ore
the vehicle begins to slow down, and
you will have to press harder on the
pedal.
You will also see a ‘‘CHECK BRAKE
SYSTEM’’ message on the multi-
inf ormation display when this
indicator comes on.
You will also see a ‘‘BRAKE FLUID
LOW’’ message on the multi-
inf ormation display. 427 482
Emergency
Towing
Brake System Indicator
T aking Care of t he Unexpect ed
473
U.S. Canada
2010 TSX
Page 477 of 524
If there is a problem with the power
door lock system and you cannot
unlock the driver’s door, use the
release lever behind the lef t side
cover in the trunk.
If you also cannot unlock the trunk
due to the power door lock system
malf unction, see page and open
the trunk manually.To open the f uel f ill door, pull the
release lever rearward.
132
Opening the Fuel Fill Door Manually
474
COVER
RELEASE LEVER
2010 TSX
Page 478 of 524
The vehicle’s f uses are contained in
threefuseboxes.
Thedriver’ssideinteriorfuseboxis
under the dashboard on the driver’s
side. The fuse label is attached to the
side panel.The passenger’s side interior f use
box is on the lower passenger’s side
panel. To remove the f use box lid,
put your f inger in the notch on the
lid, and pull it upward slightly, then
pull it toward you and take it out of
its hinges.The under-hood f use box is on the
driver’s side. To open it, push the
tabs as shown.
CONT INUED
Fuses
T aking Care of t he Unexpect ed
475
INTERIOR (Driver’s side)
NOTCHINTERIOR (Passenger’s side)
UNDER-HOOD
FUSE BOX
FUSE LABEL TAB
4-cylinder models
2010 TSX
Page 479 of 524
Check each of the large f uses in
the under-hood f use box by
looking at the wire inside.
Removing these f uses requires a
Phillips-head screwdriver.
If something electrical in your
vehicle stops working, the first thing
youshouldcheckforisablownfuse.
Determine f rom the chart on pages
, and , or the diagram on
thefuseboxlidorthefuselabel,
which f use or f uses control that
component. Check those f uses f irst,
but check all the f uses bef ore
deciding that a blown f use is not the
cause. Replace any blown f uses and
check if the device works.
Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are of f .
On the under-hood and passenger’s
side interior f use boxes, remove
the cover f rom each f use box. 3.
1.
2. 479 480 481
Checking and Replacing Fuses
Fuses
476
FUSE
BLOWN
UNDER-HOOD
TAB
6-cylinder models
2010 TSX
Page 480 of 524
CONT INUED
Look f or a blown wire inside the
fuse.If itisblown,replaceitwith
one of the spare f uses of the same
rating or lower.
Check the smaller f uses in the
under-hood f use box and all the
fuses in the interior fuse boxes by
pulling out each one with the f use
pullerprovidedonthebackof the
under-hood f use box cover.
Also check the combined f use box in
the under-hood f use box.
5.
4.
Fuses
T aking Care of t he Unexpect ed
477
BLOWN
FUSE PULLER
BLOWN
2010 TSX