2018 Acura RLX HYBRID overheating

Contents
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
This owner’s manual covers all models of your vehicle. You may find
descriptions of equipment and features that are not on your
particular model.
Images throughout this owner’s manu al (including the front cover)
represent features and equipment that are available on some, but
not all, models. Your particular mo del may not have some of these
features.
This owner’s manual is for vehicles sold in the United States and
Canada.
The information and specifications in cluded in this publication were
in effect at the time of approval for printing. Honda Motor Co., Ltd.
reserves the right, however, to discontinue or change specifications
or design at any time without notice and without incurring any
obligation.2 Safe Driving P. 33
For Safe Driving P. 34 Seat Belts P. 38 Airbags P. 45
2Instrument Panel P. 75
Indicators P. 76 Gauges and Displays P. 112
2Controls P. 127
Clock P. 128 Locking and Unlocking the Doors P. 129
Opening and Closing the Moonroof P. 151
Adjusting the Seats P. 175
2 Features P. 211
Audio System P. 212 Audio System Basic Operation P. 216
Customized Features P. 297 HomeLink® Universal Transceiver P. 323
2 Driving P. 373
Before Driving P. 374 Towing a Trailer P. 379
Multi-View Rear Camera* P. 478 Surround View Camera System* P. 480
2Maintenance P. 493
Before Performing Maintenance P. 494 Maintenance MinderTM P. 497
Checking and Maintaining Wiper Blades P. 518
Climate Control System Maintenance P. 532
2Handling the Unexpected P. 541
Tools P. 542 If a Tire Goes Flat P. 543
Overheating P. 567 Indicator, Coming On/Blinking P. 569
When You Cannot Open the Trunk P. 583
2 Information P. 585
Specifications P. 586 Identification Numbers P. 588
Emissions Testing P. 591 Warranty Coverages P. 593
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28
Quick Reference Guide
Handling the Unexpected (P 541)
Flat Tire (P 543)
● Park in a safe location and repair the flat
tire using the tire repair kit, or replace
the flat tire with the compact spare tire
*1.
Indicators Come On
(P 569)
●Identify the indicator and consult the
owner’s manual.
*1:Vehicles with optional spare tire kit
Power System Won’t Start
(P 561)
● If the 12-volt battery is dead, jump start
using a booster battery.
Blown Fuse

(P 574)
● Check for a blown fuse if an electrical
device does not operate.
Overheating (P 567)
● Park in a safe location. If you do not see
steam under the hood, open the hood,
and let the power sy stem and the engine
cool down.
Emergency Towing
(P 581)
● Call a professional towing service if you
need to tow your vehicle.
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85
uuIndicators u
Continued
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
High
Temperature
Indicator
•Comes on for a few seconds when
you set the power mode to ON, then
goes off.
• Blinks when the engine coolant
temperature goes up, and stays on if
the temperature continues to rise.•Blinks while driving - Drive slowly to
prevent overheating.
•Stays on while driving - Immediately
stop in a safe place an d allow the engine to
cool.
2 Overheating P. 567
Low Temperature
Indicator
•Comes on for a few seconds when
you set the power mode to ON, then
goes off.
• Comes on when the engine coolant
temperature is low.•If the indicator stays on after the engine has
reached normal operating temperature,
there may be problem with the
temperature sensors. Have your vehicle
inspected by a dealer.
—
Vehicle Stability
Assist (VSA ®)
System Indicator
• Comes on for a few seconds when
you set the power mode to ON, then
goes off.
• Blinks when VSA ® is active.
• Comes on if there is a problem with
the VSA® system.•Stays on constantly - Have your vehicle
checked by a dealer.
2 Vehicle Stability Assist (VSA® ), aka
Electronic Stability Control (ESC),
System P. 441
Vehicle Stability
Assist (VSA®) OFF
Indicator
•Comes on for a few seconds when
you set the power mode to ON, then
goes off.
• Comes on when you partially disable
VSA ®.
2VSA ® On and Off P. 442—
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521
Maintenance
Checking and Maintaining Tires
Checking Tires
To safely operate your vehicle, your tires must be of the proper type and size, in
good condition with adequate tread, and properly inflated.
■Inflation guidelines
Properly inflated tires provide the best combination of handling, tread life, and
comfort. Refer to the driver’s doorjamb labe l or specifications page for the specified
pressure.
Underinflated tires wear unev enly, adversely affect handling and fuel economy, and
are more likely to fail from overheating.
Overinflated tires make your vehicle ride ha rshly, are more prone to road hazards,
and wear unevenly.
Every day before you drive, look at each of the tires. If one looks lower than the
others, check the pressure with a tire gauge.
At least once a month or before long trips , use a gauge to measure the pressure in
all tires. Even tires in g ood condition can lose 1-2 psi (10-20 kPa, 0.1-0.2 kgf/cm
2)
per month.
■Inspection guidelines
Every time you check inflation, also examine the tires and valve stems. Look for:
• Bumps or bulges on the side or in the tr ead. Replace the tire if you find any cuts,
splits, or cracks in the side of the tire . Replace it if you see fabric or cord.
• Remove any foreign objects and inspect for air leaks.
• Uneven tread wear. Have a deal er check the wheel alignment.
• Excessive tread wear.
2 Wear Indicators P. 526
•Cracks or other damage around valve stem.
1Checking Tires
Measure the air pressure when tires are cold. This
means the vehicle has been parked for at least three
hours, or driven less than 1 mile (1.6 km). If
necessary, add or releas e air until the specified
pressure is reached.
If checked when hot, tire pressure can be as much as
4–6 psi (30–40 kPa, 0.3–0.4 kgf/cm
2) higher than if
checked when cold.
Have a dealer check the tires if you feel a consistent
vibration while driving. Ne w tires and any that have
been removed and reinst alled should be properly
balanced.
Check the spare tire pressu re once a month or before
long trips.
3WARNING
Using tires that are excessively worn or
improperly inflated can cause a crash in
which you can be seriously hurt or killed.
Follow all instruction s in this owner’s
manual regarding tire inflation and
maintenance.
Vehicles with optional spare tire kit
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541
Handling the Unexpected
This chapter explains how to handle unexpected troubles.
ToolsTypes of Tools .................................. 542
If a Tire Goes Flat Temporarily Repairi ng a Flat Tire....... 543
Changing a Flat Tire ......................... 555
Power System Won’t Start Checking the Procedure ................... 561
If the Keyless Access Remote Battery is Weak ............................................. 562
Emergency Power System Off........... 563
Jump Starting .................................... 564
Overheating How to Handle Overheating ............. 567 Indicator, Coming On/BlinkingIf the Low Oil Pressure Indicator Comes On .. 569
If the 12-Volt Battery Charging System
Indicator Comes On ....................... 569
If the Malfunction Indicator Lamp Comes
On or Blinks ................................... 570
If the Brake System Indicator (Red) Comes
On ................................................. 570
If the Electric Power Steering (EPS) System Indicator Comes On .............................. 571
If the Electric Parking Brake System Indicator Comes On............................................. 571
If the Low Tire Pressure/TPMS Indicator Comes On or Blinks........................ 572 If the Transmission System Indicator Blinks
along with the Warning Message... 573
Fuses
Fuse Locations ................................. 574
Inspecting and Changing Fuses ........ 580
Emergency Towing ........................... 581
When You Cannot Unlock the Fuel Fill Door ................................................. 582
When You Cannot Open the Trunk .. 583
RefuelingRefueling From a Portable Fuel Container ... 584
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567Continued
Handling the Unexpected
Overheating
How to Handle Overheating
Overheating symptoms are as follows:
•The high temperature indicator comes on or the engine suddenly loses power.
• Steam or spray comes out of the engine compartment.
■First thing to do
1. Immediately park the vehicle in a safe place.
u Change the gear position to
(P and set the parking brake.
2. Turn off all accessories and turn on the hazard warning lights.
u No steam or spray present : Keep the power system on and open the hood.
u Steam or spray is present : Turn off the power system and wait until it
subsides. Then open the hood.
1 How to Handle Overheating
NOTICE
Continuing to drive with the high temperature
indicator on may da mage the engine.
3WARNING
Steam and spray from an overheated
engine can seriously scald you.
Do not open the hood if steam is coming
out.
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uuOverheating uHow to Handle Overheating
568
Handling the Unexpected
■Next thing to do
1.Check that the cooling fan is operating and
turn the power system off once the high
temperature indicator goes off.
u If the cooling fan is not operating,
immediately turn the power system off.
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.
2 Radiator P. 511
■Last thing to do
Once the engine has cooled sufficiently , turn the power system on and check the
high temperature indicator. If the high temp erature indicator is off, resume driving.
If it stays on, 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
MAX
MIN
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602
Index
Coolant (Engine)....................................... 510
Adding to the Radiator ............................ 511
Adding to the Reserve Tank ..................... 510
High Temperature Indicator ....................... 85
Low Temperature Indicator ........................ 85
Overheating............................................. 567
Coolant (Inverter) ..................................... 512
Creeping (Dual Clutch Transmission) ....... 386
Cross Traffic Monitor ................................ 474
Cup Holders ............................................... 189
Customized Features ................................ 297
D
Daytime Running Lights ........................... 159
Dead Battery (12-Volt) ............................. 564
Defrosting the Windshield and Windows .................................................. 207
Devices that Emit Radio Waves ................ 589
Dimming Headlights ............................................... 156
Rearview Mirror ....................................... 172
Dipstick (Engine Oil) ................................. 506
Directional Signals (Turn Signal) .............. 155
Door Mirrors ............................................. 173
Doors ......................................................... 129
Auto Door Locking .................................. 142
Auto Door Unlocking ............................... 142
Door Open Message .................................. 37
Keys ........................................................ 129 Locking/Unlocking the Doors from
the Inside ........................................ 18, 139
Locking/Unlocking the Doors from the Outside ........................................... 131
Lockout Prevention System ...................... 137
DOT Tire Quality Grading ........................ 524
Driver’s Knee Airbag .................................. 52
Driving ...................................................... 373
Braking ................................................... 452
Dual Clutch Transmission ........................ 386
Shifting Gear ........................................... 387
Turning on the Power.............................. 380
Driving Position Memory System ............ 169
Dual Clutch Transmission
Creeping ................................................. 386
Fluid ........................................................ 513
Kickdown ................................................ 386
Operating the Shift Button ................ 23, 389
Shifting ................................................... 387
Dust and Pollen Filter ............................... 532
E
Elapsed Time............................................. 117
Electric Parking Brake Indicator.................................................... 77
Electric Parking Brake System
Indicator............................................ 77, 571
Electric Power Steering (EPS) System Indicator............................................ 84, 571 Electronic Stability Control (ESC)
............ 441
Emergency ................................................ 581
Emissions Testing (Readiness Codes) ...... 591
Energy Efficiency ........................................ 12
Engine ....................................................... 588
Coolant .................................................. 510
Jump Starting ......................................... 564
Oil .......................................................... 505
Remote Engine Start ............................... 382
Engine Compartment Cover .................... 504
Engine Coolant ........................................ 510
Adding to the Radiator ........................... 511
Adding to the Reserve Tank .................... 510
High Temperature Indicator ...................... 85
Low Temperature Indicator ....................... 85
Overheating ............................................ 567
Engine Oil ................................................. 505
Adding ................................................... 507
Checking ................................................ 506
Displaying Oil Life ................................... 498
Low Oil Pressure Indicator ................. 76, 569
Recommended Engine Oil ....................... 505
e-pretensioners .......................................... 40
EPS (Electric Power Steering) System ........ 84
Exhaust Gas Hazard (Carbon Monoxide) .. 72
Expanded Rear Door Sunshades ............. 199
Exterior Care (Cleaning) .......................... 535
Exterior Mirrors ........................................ 173
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