2019 Acura MDX engine

650
Handling the Unexpected
Engine Does Not Start
Checking the Engine
If the engine does not start, check the starter.
Starter conditionChecklist
Starter doesn’t turn or turns
over slowly.
The battery may be dead. Check
each of the items on the right and
respond accordingly.Check for a message on the MID.
●If the To Start, Hold Remote Near Start Button message appears
2If the Keyless Access Remote Battery is Weak P. 651
uMake sure the keyless access remo te is in its operating range.
2ENGINE START/STOP Button Operating Range P. 169
Check the brightness of the interior lights.
Turn on the interior lights and check the brightness.
●If the interior lights are dim or do not come on at all
2Battery P. 613●If the interior lights come on normally 2 Fuses P. 662
The starter turns over normally
but the engine doesn’t start.
There may be a problem with the
fuse. Check each of the items on
the right and resp ond accordingly. Review the engine start procedure.
Follow its instructions, and try to start the engine again.
2
Starting the Engine P. 467
Check the immobilizer system indicator.
When the immobilizer system indicator is blinking, the engine cannot be started.
2Immobilizer System P. 163
Check the fuel level.
There should be enough fuel in the tank.
2 Fuel Gauge P. 119
Check the fuse.
Check all fuses, or have the vehicle checked by a dealer.
2Inspecting and Changing Fuses P. 669
If the problem continues:
2Emergency Towing P. 670
1Checking the Engine
If you must start the vehi cle immediately, use an
assisting vehicle or booster battery to jump start it.
2 Jump Starting P. 653
19 ACURA MDX-31TZ56510.book 650 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

651
uuEngine Does Not Start uIf the Keyless Access Remote Battery is Weak
Handling the Unexpected
If the Keyless Access Re mote Battery is Weak
If the beeper sounds, the To Start, Hold Remote Near Start Button message
appears on the multi-information di splay, and the indicator on the ENGINE START/
STOP button flashes, and the engine won’t start, start the engine as follows:
1. Touch the center of the ENGINE START/
STOP button with the A logo on the keyless
access remote while the indicator on the
ENGINE START/STOP button is flashing.
The buttons on the keyless access remote
should be facing you.
u The indicator flashes for about 30
seconds.
2. Depress the brake pedal and press the
ENGINE START/STOP button within 10
seconds after the beeper sounds while the
indicator stays on.
u If you don’t depress the pedal, the mode
will change to ACCESSORY.
ENGINE
START
STOP
19 ACURA MDX-31TZ56510.book 651 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

652
uuEngine Does Not Start uEmergency Engine Stop
Handling the Unexpected
Emergency Engine Stop
The ENGINE START/STOP button may be used to st op the engine due to an
emergency situation even while driving. If you must stop the engine, do either of the
following operations:
• Press and hold the ENGINE START/STOP button for about two seconds.
• Firmly press the ENGINE START/STOP button three times.
The steering wheel will not lock. However, because turning off the engine disables
the power assist the engine provides to the steering and braking systems, it will
require significantly more physical effort an d time to steer and slow the vehicle. Use
both feet on the brake pedal to slow down the vehicle and stop immediately in a
safe place.
The gear position auto matically changes to
(P after the vehicle comes to a complete
stop. Then, the power mode changes to VEHICLE OFF.
The gear position automatically changes to P after the vehicle comes to a complete
stop. Then press the ENGINE START/STOP button twice without depressing the
brake pedal to change th e mode to VEHICLE OFF.
1Emergency Engine Stop
Do not press the ENGINE START/STOP button while
driving unless it is absolute ly necessary for the engine
to be turned off.
If you press the ENGINE START/STOP button while
driving, the beeper sounds.
U.S. models
Canadian models
19 ACURA MDX-31TZ56510.book 652 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

653Continued
Handling the Unexpected
Jump Starting
Turn off the power to electric devices, such as audio and lights. Turn off the engine,
then open the hood. 1.Pull up on the engine cover, remove it from
the pins.
u Start on the passenger side and lift the
outermost edge of the cover.
u Move towards the driver side while
applying uniform upward pressure.
2. Connect the first jumper cable to your
vehicle’s battery + terminal.
3. Connect the other end of the first jumper
cable to the booster battery + terminal.
u Use a 12-volt booster battery only.
u When using an automotive battery
charger to boost your 12-volt battery,
select a lower charging voltage than 15
volt. Check the charger manual for the
proper setting.
4. Connect the second jumper cable to the
booster battery - terminal.
■Jump Starting Procedure1Jump Starting
Securely attach the jumper cables clips so that they
do not come off when the e ngine vibrates. Also be
careful not to tangle the ju mper cables or allow the
cable ends to touch each other while attaching or
detaching the jumper cables.
Battery performance degrades in cold conditions and
may prevent the engi ne from starting.
3WARNING
A battery can explode if you do not follow
the correct procedure, seriously injuring
anyone nearby.
Keep all sparks, open flames, and smoking
materials away from the battery.
Engine CoverPin
Booster Battery
19 ACURA MDX-31TZ56510.book 653 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

654
uuJump Starting u
Handling the Unexpected
5.Connect the other end of the second
jumper cable to the engine hanger as
shown. Do not connect this jumper cable to
any other part.
6. If your vehicle is connected to another
vehicle, start the assi sting vehicle’s engine
and increase its rpm slightly.
7. Attempt to start your vehicle’s engine. If it
turns over slowly, check that the jumper
cables have good metal-to-metal contact.
Once your vehicle’s engine has started, remove the jumper cabl es in the following
order.
1. Disconnect the jumper cable from your vehicle’s ground.
2. Disconnect the other end of the jumper cable from the booster battery -
terminal.
3. Disconnect the jumper cable from your vehicle’s battery + terminal.
4. Disconnect the other end of the jumper cable from the booster battery +
terminal.
Have your vehicle inspected by a n earby service station or a dealer.
■What to Do After the Engine Starts
19 ACURA MDX-31TZ56510.book 654 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

655Continued
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The temperature gauge needle is at the mark or the engine suddenly loses
power.
• The Stop Driving When Safe. En gine Temperature Too Hot message appears
on the multi-information display (MID).
• Steam or spray comes out of the engine compartment.
■First thing to do
1. Immediately park the vehicle in a safe place.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present: Keep the engine running and open the hood.
u Steam or spray is present: Turn off the engine and wait until it subsides.
Then, open the hood.
1 How to Handle Overheating
NOTICE
Continuing to drive with the temperature gauge
needle at the mark may damage the engine.
3WARNING
Steam and spray from an overheated
engine can seriously scald you.
Do not open the hood if steam is coming
out.
H
H
19 ACURA MDX-31TZ56510.book 655 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

uuOverheating uHow to Handle Overheating
656
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
stop the engine once the temperature
gauge needle comes down.
u If the cooling fan is not operating,
immediately stop the engine.
2. Once the engine has cooled down, inspect
the coolant level an d check the cooling
system components for leaks.
u If the coolant level in the reserve tank is
low, add coolant until it reaches the
MAX mark.
u If there is no coolan t in the reserve tank,
check that the radiator is cool. Cover the
radiator cap with a heavy cloth and open
the cap. If necessary, add coolant up to
the base of the filler neck, and put the
cap back on.
■Last thing to do
Once the engine has cooled sufficiently, restart it and check the temperature gauge.
If the temperature gauge needle has gone do wn, resume driving. If it has not gone
down, contact a dealer for repairs.
1 How to Handle Overheating
If the coolant is leaking, contact a dealer for repairs.
Use water as an emergency/temporary measure only.
Have a dealer flush the system with proper antifreeze
as soon as possible.
Continuing to drive with the Stop Driving When
Safe. Engine Temperature Too Hot message on
the multi-information display may damage the
engine.
3WARNING
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.
Reserve TankMAXMIN
19 ACURA MDX-31TZ56510.book 656 ページ ２０１８年１２月１１日　火曜日　午後４時４７分

657
Handling the Unexpected
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes On
■Reasons for the indicator to come on
Comes on when the engine oil pressure is low.
■What to do as soon as the indicator comes on
1. Immediately park the vehicle on level ground in a safe place.
2. If necessary, turn the hazard warning lights on.
■What to do after parking the vehicle
1. Stop the engine and let it sit for approximately three minutes.
2. Open the hood and check the oil level.
2 Oil Check P. 587
3.Start the engine and check th e low oil pressure indicator.
u The indicator goes off: Start driving again.
u The indicator does not go off within 10 seconds: Immediately stop
the engine and contact a dealer for repairs.
If the Charging System Indicator Comes On
■Reasons for the indicator to come on
Comes on when the battery is not being charged.
■What to do when th e indicator comes on
Turn off the climate control system, rear defogger, and other electrical
systems, and immediately co ntact a dealer for repairs.
1If the Low Oil Pressure Indicator Comes On
NOTICE
Running the engine with low oil pressure can cause
serious mechanical damage almost immediately.
1If the Charging System Indicator Comes On
If you need to stop temporarily, do not turn off the
engine. Restarting the engi ne may rapidly discharge
the battery.
19 ACURA MDX-31TZ56510.book 657 ページ ２０１８年１２月１１日　火曜日　午後４時４７分