check engine Acura RDX 2017 Owner's Guide
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358
uuMaintenance Under the Hood uEngine Coolant
Maintenance
Engine Coolant
This coolant is premixed with 50% antifreeze and 50% water. Do not add any 
straight antifreeze or water.
We recommend you check the engine coolant level every time you refuel. Check the 
reserve tank first. If it is completely  empty, also check the coolant level in the 
radiator. Add the engine coolant accordingly.
1.Check the amount of coolant in the reserve 
tank.
2. If the coolant level is below the  MIN mark, 
add the specified coolant until it reaches 
the  MAX  mark.
3. Inspect the cooling system for leaks.
Specified coolant: Acura Long  Life Antifreeze/Coolant Type 2
■Reserve Tank
1Engine Coolant
NOTICE
Genuine Acura engine cool ant is a 50/50 mixture of 
antifreeze and water that can withstand freezing at 
temperatures as low as a bout -31°F (-35°C). If your 
vehicle is consistently subjected to temperatures 
below this, the concentration of antifreeze in the 
coolant should be increased. Consult a dealer for 
details.
If Acura antifreeze/coolant  is not available, you may 
use another major brand non- silicate coolant as a 
temporary replacement. Check that it is a high quality 
coolant recommended for  aluminum engines. 
Continued use of any non-Acur a coolant can result in 
corrosion, causing the cooling system to malfunction 
or fail. Have the cooling  system flushed and refilled 
with Acura antifreeze/cool ant as soon as possible.
Do not add rust inhibitors or other additives to your 
vehicle’s cooling system. They may not be compatible 
with the coolant or with the engine components.
Reserve 
TankMAX
MIN 
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360
uuMaintenance Under the Hood uTransmission Fluid
Maintenance
Transmission Fluid
Check the fluid level when the engine  is at normal operating temperature.
1. Park on level ground, and start the engine.
2. Wait until the radiator fan starts and then 
turn off the engine.
u Perform step 3 after waiting for about 60 
seconds (less than 90 seconds).
3. Remove the dipstick (yellow loop) from the 
transmission and wipe it with a clean cloth.
4. Insert the dipstick all the way back into the 
transmission securely, as shown in the 
image.
5. Remove the dipstick and check the fluid 
level.
u It should be between the upper and 
lower marks in the  HOT range.
6. If the level is below the lower mark, add 
fluid into the dipstick ho le to bring it to the 
level between the upper and lower marks, 
and have your vehicle checked by a dealer 
immediately.
■Automatic Transmission Fluid
Specified fluid: Acura Automa tic Transmission Fluid ATF DW-1
1Automatic Transmission Fluid
NOTICE
Do not mix Acura Automatic Transmission Fluid 
ATF DW-1 with other transmission fluids.
Using a transmission fluid ot her than Acura ATF DW-
1 may adversely affect the  operation and durability of 
your vehicle’s transmission, and damage the 
transmission.
Any damage caused by usi ng a transmission fluid that 
is not equivalent to Acur a ATF DW-1 is not covered 
by Acura’s new vehicle warranty.
NOTICE
Pour the fluid slowly and ca refully so you do not spill 
any. Clean up any spills immediately; they can 
damage components in the engine compartment.
Upper Mark
Lower Mark
HOT
 
Range 
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362
uuMaintenance Under the Hood uRefilling Window Washer Fluid
Maintenance
Refilling Window  Washer Fluid
Check the amount of window washer fluid using the  1/2 mark on the reservoir.
If the level is low, fill the washer reservoir.
If the washer fluid is low, a message  appears on the multi-information display.
Pour the washer fluid carefully.  Do not overflow the reservoir.1Refilling Window Washer Fluid
NOTICE
Do not use engine antifreeze or a vinegar/water 
solution in the windshield washer reservoir.
Antifreeze can damage y our vehicle’s paint. A 
vinegar/water solution ca n damage the windshield 
washer pump.
1/2  Mark
Models with washer level sensor 
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393
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 394
If a Tire Goes Flat Changing a Flat Tire
*....................... 395
Temporarily Repair ing a Flat Tire*..... 401
Engine Does Not Start Checking the Engine ........................ 412
If the Keyless Access Remote Battery is Weak ............................................. 413
Emergency Engine Stop ................... 414
Jump Starting .................................... 415
Shift Lever Does Not Move .............. 417Overheating
How to Handle Overheating............. 418
Indicator, Coming On/Blinking
If the Low Oil Pressure Indicator Comes  On ............................................. 420
If the Charging System Indicator Comes 
On ................................................. 420
If the Malfunction Indicator Lamp Comes  On or Blinks ................................... 421
If the Brake System Indicator (Red) Comes  On .................................................... 422
If the Electric Power Steering (EPS) System 
Indicator Comes On............................ 422
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks ....................... 423
Fuses Fuse Locations ................................. 424
Inspecting and Changing Fuses ........ 426
Emergency Towing ........................... 427
When You Cannot Open the Tailgate..... 428
* Not available on all models 
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412
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  multi-information display.
●If the TO START, HOLD REMOTE NEAR START BUTTON /To Start, Hold Remote Near Start 
Button  message appears
2If the Keyless Access Remote Battery is Weak  P. 413
uMake sure the keyless access remo te is in its operating range.
2ENGINE START/STOP Button  P. 144
Check 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. 383●If the interior lights come on normally 2 Fuses  P. 424
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 respond accordingly. Review the engine start procedure.
Follow its instructions, and try to start the engine again. 
2
 Starting the Engine  P. 268
Check the immobilizer system indicator.
When the immobilizer system indicator is blinking, the engine cannot be started.
2Immobilizer System  P. 137
Check the fuel level.
There should be enough fuel in the tank. 
2 Fuel Gauge  P. 93
Check the fuse.
Check all fuses, or have the  vehicle checked by a dealer.
2Inspecting and Changing Fuses  P. 426
If the problem continues:
2Emergency Towing  P. 427
1Checking the Engine
If you must start the vehi cle immediately, use an 
assisting vehicle to jump start it.
2 Jump Starting  P. 415 
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415Continued
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.Connect the first jumper cable to your 
vehicle’s battery  + terminal.
2. Connect the other end  of the first jumper 
cable to the booster battery  + terminal.
u Use a 12-volt booster battery only.
3. Connect the second ju mper cable to the 
booster battery -  terminal.
4. 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.
5. If your vehicle is connected to another 
vehicle, start the assisting vehicle’s engine 
and increase its rpm slightly.
6. Attempt to start your ve hicle’s engine. If it 
turns over slowly, check that the jumper 
cables have good metal-to-metal contact.
■Jump Starting Procedure1 Jump 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.
Booster Battery 
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419
uuOverheating uHow to Handle Overheating
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 and 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 coolant 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, re start it and check the temperature gauge. 
If the temperature needle has gone down, 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.
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 Tank
MAXMIN 
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420
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 in a safe place.
2. If necessary, turn the ha zard warning lights on.
■What to do after parking the vehicle
1. Stop the engine and let it sit for about one minute.
2. Open the hood and check the oil level.
u Add oil as necessary.
3. Start the engine and check the low oil pressure indicator.
u The indicator goes off:  Start driving again.
u The indicator does not go  off within 10 seconds: Stop the 
engine and contact a dealer for repairs immediately.
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 the indicator comes on
Turn off the climate con trol system, rear defogger, and other electrical 
systems, and immediately contact a dealer for repairs.
1 If 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. 
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421
uuIndicator, Coming On/Blinking uIf the Malfunction Indicator Lamp Comes On or Blinks
Handling the Unexpected
If the Malfunction Indica tor Lamp Comes On or 
Blinks
■Reasons for the indicator la mp to come on or blink
• Comes on when there is a problem with the engine emissions control 
system, or the fuel fill  cap is missing, or loose.
• Blinks when engine misfiring is detected.
■What to do when the indicator lamp comes on
Avoid high speeds and immediately get your vehicle inspected at a 
dealer.
■What to do when the  indicator lamp blinks
Park the vehicle in a safe place with  no flammable items and wait at least 
ten minutes or more with the engine stopped until it cools.
■The message appears on when:
An evaporative system leak is  detected. This may be caused  by the fuel fill cap being 
loose or not being installed.
■What to do when the message appears:
1. Stop the engine.
2. Check that the fuel fill  cap is fully installed.
u If not, loosen the cap, and then reti ghten it until it clicks at least once.
3. Drive for several days of normal driving.
u The message should go off.
■When the malfunction indicator lamp comes on
Malfunction indicator lamp comes on if th e system continues to detect a leak of 
gasoline vapor. If this happens, check the  fuel fill cap using the procedures described 
above.
■Tighten Fuel Cap Message
1 If the Malfunction Indicato r Lamp Comes On or Blinks
NOTICE
If you drive with the malf unction indicator lamp on, 
the emissions control system and the engine could be 
damaged.
If the malfunction  indicator lamp blinks again when 
restarting the engine, drive  to the nearest dealer at 
31 mph (50 km/h) or less. Have your vehicle 
inspected. 
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422
uuIndicator, Coming On/Blinking uIf the Brake System Indicator (Red) Comes On
Handling the Unexpected
If the Brake System Indicator (Red) Comes On
■Reasons for the indicator to come on
• The brake fluid is low.
• There is a malfunction in the brake system.
■What to do when the indicator comes on while driving
Press the brake pedal lightly to check pedal pressure.
• If normal, check the brake fluid level the next time you stop.
• If abnormal, take immediate action . If necessary, downshift the 
transmission to slow the vehicle using engine braking.
If the Electric Power Steeri ng (EPS) System Indicator 
Comes On
■Reasons for the indicator to come on
• Comes on when there is a problem with EPS system.
• If you depress the accelerator pedal  repeatedly to increase the engine 
speed while the engine is idlin g, the indicator comes on, and 
sometimes the steering wheel  becomes harder to operate.
■What to do when the indicator comes on
Stop the vehicle in a safe  place and restart the engine.
If the indicator comes on and stays on, immediately have your vehicle 
inspected by a dealer.
1 If the Brake System Indicator (Red) Comes On
Have your vehicle re paired immediately.
It is dangerous to drive with  low brake fluid. If there 
is no resistance from  the brake pedal, stop 
immediately in a safe plac e. If necessary downshift 
the gears.
If the brake system indicator and  ABS indicator come 
on simultaneously, the elec tronic brake distribution 
system is not working. Th is can result in vehicle 
instability under sudden braking.
Have your vehicle inspecte d by a dealer immediately.U.S.
Canada