check engine light Acura MDX HYBRID 2018 Owner's Manual
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27
Quick Reference Guide
Maintenance (P561)
Under the Hood (P569)
● Check engine oil, engine coolant, windshield washer fluid 
and inverter coolant.  Add when necessary.
● Check brake fluid.
● Check the 12-volt battery condition monthly.
aPull the hood release handle under the corner of the 
dashboard.
bLocate the hood latch lever,  push it to the side, and then 
raise the hood. Once you have raised the hood slightly, you 
can release the lever.
cWhen finished, close the hood  and make sure it is firmly 
locked in place.
Lever
Lights (P582)
● Inspect all lights regularly.
Wiper Blades (P587)
● Replace blades if they leave streaks 
across the windshield.
Tires (P591)
● Inspect tires and wheels regularly.
● Check tire pressures regularly.
● Install snow tires for winter 
driving.
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448
Driving
Before Driving
Driving Preparation
Check the following items before you start driving.
• Make sure there are no obstructions on the windows, door mirrors, exterior 
lights, or other parts of the vehicle.
u Remove any frost, snow, or ice.
u Remove any snow on the roof, as this can slip down and obstruct your field of 
vision while driving. If frozen solid , remove ice once it has softened.
u When removing ice from around the wheels,  be sure not to damage the wheel 
or wheel components.
• Make sure the hood is securely closed.
u If the hood opens while driving, your front view will be blocked.
• Make sure the tires are in good condition.
u Check air pressures, and check  for damage and excessive wear.
2Checking and Maintaining Tires  P. 591
•Make sure there are no people or ob jects behind or around the vehicle.
u There are blind spots from the inside.
■Exterior Checks1Exterior Checks
NOTICE
When doors are frozen s hut, use warm water around 
the door edges to melt any ice. Do not try to force 
them open, as this can damage the rubber trim 
around the doors. When done, wipe dry to avoid 
further freezing.
Do not pour warm water  into the key cylinder.
You will be unable to insert the key if the water 
freezes in the hole.
Heat from the engine  and exhaust can ignite 
flammable material s left under the hood, causing a 
fire. If you’ve parked y our vehicle for an extended 
period, inspect and remove  any debris that may have 
collected, such as dried grass and leaves that have 
fallen or have been carried  in for use as a nest by a 
small animal. Also check  under the hood for leftover 
flammable materials after  you or someone else has 
performed maintenance on your vehicle.
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457Continued
Driving
When Driving
Turning on the Power
1.Make sure the parkin g brake is applied.
u The electric parking brake indicator 
comes on for 15 seconds when you press 
the electric parking brake switch.
2. Depress the brake pedal.1Turning on the Power
Keep your foot firmly on the brake pedal when 
starting the power system.
The engine is harder to st art in cold weather and in 
thinner air found at altitudes above 8,000 feet (2,400 
meters).
When turning on the power system in cold weather, 
turn off all electrical accessories such as the lights, 
climate control system, and  rear defogger in order to 
reduce 12-volt battery drain.
If you live in a region where winter is extremely cold, 
an engine block heater  and transmission clutch 
actuator heater will impr ove starting and warming of 
the engine. Consult a  dealer for details.
If the exhaust system sounds abnormal or you can 
smell exhaust gas inside the  vehicle, have your vehicle 
checked by a dealer. There may be a problem with 
the engine or exhaust system.
Electric Parking Brake Switch
Brake Pedal
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Continued467
uuWhen Driving uShifting
Driving
■Shift Operation1Shift Operation
NOTICE
When you change (D to (R and vice versa, come to 
a complete stop and keep  the brake pedal depressed.
Operating the shift button before the vehicle has 
come to a complete standstill can damage the 
transmission.
Use the gear position indicator and the shift button 
indicator to check the gear  position before selecting 
a shift button.
If the indicator of the curren tly selected gear position, 
or all the gear position  indicators are blinking 
simultaneously, there is a problem with the 
transmission.
Avoid sudden acceleration  and have the transmission 
checked by a dealer as soon as possible.
The fuel supply may be cut of f if you drive at engine 
speeds in or over the tac hometer’s red zone (engine 
speed limit). If this happe ns, you may experience a 
slight jolt.
When the engine speed is increased while the 
transmission is in 
( N, (P or (R, the fuel supply may 
be cut off even without  the engine speed entering 
the tachometer’s red zone.
The beeper sounds once when you change to 
( R.
Gear Position Indicator
Tachometer’s red zone
Press the (P button.
Pull back the ( R button.
Press the 
( N button.
Press the   button.
D/S
Shift Button 
Indicator M
 (sequential mode) 
Indicator
Sequential Mode Gear 
Selection Indicator
Press the   button twice.
If the gear position is in 
( D, 
press the   button again.
D/S
D/S
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561
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 562
Safety When Performing Maintenance ..563
Parts and Fluids Used in Maintenance Service...564Maintenance MinderTM..................... 565
Maintenance Under the Hood
Maintenance Items Under the Hood .. 569
Opening the Hood ........................... 570
Engine Compartment Cover ............. 571
Recommended Engine Oil ................ 572
Oil Check ......................................... 573
Adding Engine Oil ............................ 574
Changing the Engine Oil and Oil Filter ...575 Cooling System ................................ 577
Inverter Coolant ............................... 579
Transmission Fluid ............................ 580
Brake Fluid ....................................... 581
Refilling Window Wa
sher Fluid......... 581
Replacing Light Bulbs ....................... 582
Checking and Maintaining Wiper Blades... 587Checking and Maintaining Tires
Checking Tires ................................. 591
Tire and Loading Information Label .. 592
Tire Labeling .................................... 592
DOT Tire Quality Grading (U.S. Vehicles).. 594Wear Indicators................................ 596 Tire Service Life ................................ 596
Tire and Wheel Replacement ........... 597
Tire Rotation .................................... 598
Winter Tires ..................................... 599
12-Volt Battery ................................. 600
Remote Transmitter Care ................. 601
Remote Control and Wireless  Headphone Care
*........................... 602Climate Control System Maintenance.. 604Cleaning Interior Care .................................... 605
Exterior Care.................................... 607
Accessories and Modifications ........ 611
* Not available on all models
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570
uuMaintenance Under the Hood uOpening the Hood
Maintenance
Opening the Hood
1. Park the vehicle on a level surface, and set 
the parking brake.
2. Pull the hood release handle under the 
driver’s side lower corner of the dashboard.
u The hood will pop up slightly.
3. Push the hood latch lever (located under 
the front edge of the hood to the center) to 
the side and raise the hood. Once you have 
raised the hood slightly, you can release the 
lever.
4. Lift the hood up most of the way.
u The hydraulic support will lift it up the 
rest of the way and hold it up.
When closing, lower it to approximately 12 
inches (30 cm), then pr ess down firmly with 
your hands.1 Opening the Hood
NOTICE
Do not open the hood when the wiper arms are 
raised. The hood will strike  the wipers, resulting in 
possible damage to the hood and/or the wipers.
Do not press the engine cover forcibly. This may 
damage the engine cover and component parts.
When closing the hood, check that the hood is 
securely latched.
If the hood latch lever moves  stiffly, or if you can 
open the hood without lifti ng the lever, the latch 
mechanism should be cl eaned and lubricated.
Hood Release Handle
Pull
Lever
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uuMaintenance Under the Hood uChanging the Engine Oil and Oil Filter
576
Maintenance
4. Remove the oil filter and dispose of the 
remaining oil.
5. Check that the filter ga sket is not stuck to 
the engine contact surface.
u If it is stuck, you must detach it.
6. Wipe away dirt and dust adhering to the 
contact surface of the engine block, and 
install a new oil filter.
u Apply a light coat of new engine oil to 
the filter gasket.
7. Put a new washer on the drain bolt, then 
reinstall the drain bolt.
u Tightening torque:
29 lbf∙ft (39 N∙m, 4.0 kgf∙m)
8. Pour the recommended engine oil into the 
engine.
u Engine oil change capacity (including 
filter):
4.5 US qt (4.3 L)
9. Reinstall the engine oil fill cap securely and 
start the engine.
10. Run the engine for a few minutes, and   
then check that there is no leak from the   
drain bolt or oil filter.
11. Stop the engine, wait for three minutes,   
and then check the oil level on the   
dipstick.
u If necessary, add more engine oil.1Changing the Engine Oil and Oil Filter
You will need a special wrench to replace the oil 
filter. You can buy this wrench from a dealer.
When installing the new oil filter, follow the 
instructions supplied with the oil filter.
Reinstall the engine oil fill  cap. Start the engine. The 
low oil pressure indicator should go off within five 
seconds. If it does not, turn  off the engine, and check 
your work.
Oil Filter
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637Continued
Handling the Unexpected
Jump Starting
Turn off the power to electric devices, such as audio and lights. Turn off the power 
system, then open the hood. 1.Pull up on the engine cover, remove it from 
the pins.
u Start on the passenger side and lift up on 
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 12-volt 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.
12-volt Battery performa nce degrades in cold 
conditions and may prevent  the engine from starting.
3WARNING
A 12-volt 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 12-volt battery.
Engine 
CoverPin
Booster Battery
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638
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 assisting 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, re move the jumper cables 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 12-volt 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
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641
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. Turn the power system off and let it sit for approximately three 
minutes.
2. Open the hood and check the oil level.
2 Oil Check P. 573
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 with in 10 seconds: Immediately turn 
the power system off and contact a dealer for repairs.
If the 12-Volt Battery Cha rging System Indicator 
Comes On
■Reasons for the indicator to come on
Comes on when the 12-Volt 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 12-Volt Battery Chargi ng System Indicator Comes On
If you need to stop temporarily, do not turn off the 
power system. Restarting  the power system may 
rapidly discharge the battery.
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