2018 Acura RDX coolant

361
uuMaintenance Under the Hood uEngine Coolant
Maintenance
1. Make sure the engine and radiator are
cool.
2. Turn the radiator cap counterclockwise and
relieve any pressure in the coolant system.
Do not push the cap down when turning.
3. Push down and turn the radiator cap
counterclockwise to remove it.
4. The coolant level should be up to the base
of the filler neck. Add coolant if it is low.
5. Put the radiator cap back on, and tighten it
fully.
6. Pour coolant into the reserve tank until it
reaches the MAX mark. Put the cap back
on the reserve tank.
■Radiator1 Radiator
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.
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.Radiator Cap

uuCleaning uExterior Care
392
Maintenance
A good coat of automotive body wax helps protect your vehicle’s paint from the
elements. Wax will wear off over time an d expose your vehicle’s paint to the
elements, so reapply as necessary.
If you get gasoline, oil, engine coolant, or battery fluid on resin coated parts, they
may be stained or the coating may peel. Prom ptly wipe it away using a soft cloth and
clean water.
Wipe using a glass cleaner.
Aluminum is susceptible to deteriorat ion caused by salt and other road
contaminants. Use a sponge and mild detergent to wipe away promptly.
Be careful not to use harsh chemicals (inc luding some commercial wheel cleaners) or
a stiff brush. They can damage the clear coat of the aluminum alloy wheels that
helps keep the aluminum from corroding and tarnishing.
■Applying Wax
■Maintaining the Bumpers and Other Resin Coated Parts
■Cleaning the Window
■Maintaining Aluminum Wheels
1 Applying Wax
NOTICE
Chemical solvents and strong cleaners can damage
the paint, metal, and plasti c on your vehicle. Wipe up
spills immediately.
1 Maintaining the Bumpers an d Other Resin Coated Parts
Ask a dealer about the correct coating material when
you want to repair the pa inted surface of the parts
made of resin.

421
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

433
uuSpecifications u
Information
■Automatic Transmission Fluid
■ Rear Differential Fluid
*
■Transfer Assembly Fluid*
SpecifiedAcura Automatic Transmission Fluid ATF DW-1
Capacity Change 3.3 US qt (3.1 ℓ)
SpecifiedAcura DPSF-II
Capacity Change 1.32 US qt (1.25 ℓ)
Specified·Acura Hypoid Gear Oil HGO-1
·Hypoid gear oil SAE 75W-85 or SAE 90 (API
grade GL4 or GL5)
Capacity Change 0.43 US qt (0.41 ℓ)
■ Engine Oil
■ Engine Coolant
Recommended·Genuine Acura Motor Oil 0W-20
·API Premium-grade 0W-20 detergent oil
Capacity Change 4.2 US qt (4.0 ℓ)
Change
including
filter
4.5 US qt (4.3 ℓ)
SpecifiedAcura Long Life Antifreeze/Coolant Type2
Ratio 50/50 with distilled water
Capacity1.96 US gal (7.4 ℓ)
(change including the remaining 0.193 US gal
(0.73 ℓ) in the reserve tank)
■ Tire
RegularSizeP235/60R18 102VPressure
psi (kPa [kgf/cm2])Front35 (240 [2.4])Rear33 (230 [2.3])
Compact
Spare
*
Size T165/90R17 105M
Pressure
psi (kPa [kgf/cm
2]) 60 (420 [4.2])
Wheel SizeRegular18 x 7 1/2JCompact Spare*17 x 4T
* Not available on all models

Index
443
Index
Index
A
ABS (Anti-lock Brake System).................. 322
Accessories and Modifications ................ 394
Accessory Power Sockets ......................... 176
AcuraWatch
TM............................................ 18
Adaptive Cruise Control (ACC) .......... 81, 286
Additives Coolant .................................................. 360
Engine Oil ............................................... 355
Washer ................................................... 364
Additives, Engine Oil ............................... 355
Adjusting Armrest .................................................. 170
Front Seats.............................................. 164
Head Restraints ....................................... 166
Mirrors.................................................... 161
Rear Seats ............................................... 169
Steering Wheel ....................................... 160
Temperature ........................................... 100
Air Conditioning System (Climate Control System) ....................... 182
Changing the Mode................................ 182
Defrosting the Windshield and Windows .............................................. 183
Dust and Pollen Filter .............................. 388
Recirculation/Fresh Air Mode................... 182
Sensors ................................................... 185
Synchronized Mode ................................ 184
Using Automatic Climate Control............ 182
Air Pressure ...................................... 377, 433 Airbags
........................................................ 39
Advanced Airbags ..................................... 45
After a Collision ......................................... 42
Airbag Care ............................................... 51
Front Airbags (SRS) .................................... 42
Indicator .............................................. 49, 72
Passenger Airbag Off Indicator .................. 50
Sensors ...................................................... 39
Side Airbags .............................................. 46
Side Curtain Airbags .................................. 48
All-Wheel Drive (AWD) with Intelligent
Control System ........................................ 316
AM/FM Radio ............................................ 200
Anti-lock Brake System (ABS) .................. 322
Indicator .................................................... 71
Armrest ..................................................... 170
Audio Remote Controls ............................ 191
Audio System ............................................ 188
Adjusting the Sound ................................ 199
Auxiliary Input Jack .................................. 189
Error Messages ........................................ 217
General Information ................................ 220
iPod ®....................................................... 207
MP3/WMA/AAC ...................................... 212
Pandora ®................................................. 210
Reactivating ............................................. 190
Recommended CDs ................................. 221
Recommended Devices ............................ 223
Remote Controls ..................................... 191
Security Code .......................................... 190
Theft Protection ....................................... 190 USB Flash Drives ...................................... 223
USB Port.................................................. 189
Audio/Information Screen ....................... 193
Authorized Manuals ................................ 441
Auto Door Locking/Unlocking ................. 132
Customize ....................................... 107, 114
Automatic Intermittent Wipers ............... 154
Automatic Lighting .................................. 150
Automatic Transmission ........................... 276
Creeping ................................................. 276
Fluid ........................................................ 362
Kickdown ................................................ 276
Operating the Shift Lever................... 16, 278
Sequential Shift Mode ............................. 279
Shift Lever Does Not Move ...................... 419
Shifting ................................................... 277
Auxiliary Input Jack .................................. 189
Average Fuel Economy ............................ 100
Average Speed ......................................... 101
AWD .......................................................... 316
B
Battery ...................................................... 385
Charging System Indicator................. 70, 422
Jump Starting .......................................... 417
Maintenance (Checki ng the Battery) ........ 385
Belts (Seat) .................................................. 31
Beverage Holders ..................................... 175
Blind spot information (BSI) System ........ 313
Bluetooth ® Audio ..................................... 215

444
Index
Bluetooth® HandsFreeLink ®..................... 226
Booster Seats (For Children) ....................... 63
Brake System ............................................. 320
Anti-lock Brake System (ABS) ................... 322
Brake Assist System ................................. 323
Fluid ........................................................ 363
Foot Brake ............................................... 321
Indicator ............................................ 68, 424
Parking Brake .......................................... 320
Brightness Control (Instrument Panel) .... 156
BSI (Blind spot information) System ........ 313
Bulb Replacement ..................................... 365
Back-Up Light and Taillight ...................... 370
Brake Light/Taillight/Rear Side Marker Light and
Rear Turn Signal Light Bulbs ................... 368
Fog Lights ................................................ 365
Front Turn Signal Light /Parking Light/Daytime
Running Light and Front Side Marker Light
Bulbs ..................................................... 367
Headlights ............................................... 365
High-Mount Brake Light .......................... 371
Rear License Plate Light............................ 371
Side Turn Signal Light /Emergency Indicator
Light ...................................................... 366
Bulb Specifications .................................... 432
C
Carbon Monoxide Gas ................................ 64
Cargo Hook ............................................... 177
Carrying Cargo .................................. 259, 261 CD Player
................................................... 204
Certification Label .................................... 434
Changing Bulbs ........................................ 365
Charging System Indicator ................. 70, 422
Child Safety ................................................. 52
Childproof Door Locks............................. 131
Child Seat .................................................... 52
Booster Seats ............................................ 63
Child Seat for Infants................................. 54
Child Seat for Small Children ..................... 55
Installing a Child Seat with a Lap/Shoulder Seat
Belt ......................................................... 59
Larger Children ......................................... 62
Rear-facing Child Seat ............................... 54
Selecting a Child Seat ................................ 56
Childproof Door Locks ............................. 131
Cleaning the Exterior ............................... 391
Cleaning the Interior ................................ 389
Client Service Information ....................... 442
Climate Control System ............................ 182
Changing the Mode ................................ 182
Defrosting the Windshield and
Windows ............................................... 183
Dust and Pollen Filter............................... 388
Recirculation/Fresh Air Mode ................... 182
Sensors ................................................... 185
Synchronized Mode................................. 184
Using Automatic Climate Control ............ 182
Clock .......................................................... 120
CMBSTM (Collision Mitigation Braking
SystemTM) ................................................. 324 Coat Hook
................................................ 177
Collision Mitigation Braking System
TM
(CMBSTM) ................................................. 324
Compact Spare Tire .......................... 397, 433
Compass .................................................... 255
Console Compartment ............................. 174
Controls .................................................... 119
Coolant (Engine) ...................................... 360
Adding to the Radiator ........................... 361
Adding to the Reserve Tank .................... 360
Overheating ............................................ 420
Creeping (Automatic Transmission) ........ 276
Cross Traffic Monitor ............................... 337
Cruise Control .......................................... 281
Indicator ................................................... 78
Cup Holders .............................................. 175
Customized Features ....................... 102, 108
D
Daytime Running Lights .......................... 152
Dead Battery ............................................ 417
Defrosting the Windshield and Windows ................................................. 183
Detachable Anchor .................................... 36
Devices that Emit Radio Waves ............... 435
Dimming
Headlights .............................................. 149
Rearview Mirror ...................................... 161
Dipstick (Engine Oil) ................................ 356
Directional Signals (Turn Signal) ............. 149

445
Index
Display Button.......................................... 193
Door Mirrors ............................................. 162
Doors ........................................................ 121
Auto Door Locking.................................. 132
Auto Door Unlocking .............................. 132
Door and Tailgate Open Indicator ............. 74
Door and Tailgate Open Message ............. 89
Keys........................................................ 121
Locking/Unlocking the Doors from the Inside...................................... 130
Locking/Unlocking the Doors
from the Outside................................... 125
Lockout Prevention System ..................... 128
DOT Tire Quality Grading ........................ 379
Driving ...................................................... 257
Automatic Transmission .......................... 276
Braking ................................................... 320
Cruise Control ........................................ 281
Off-Highway Driving Guidelines .............. 268
Shifting Gear .......................................... 277
Starting the Engine ................................. 270
Driving Position Memory System ............ 158
Dust and Pollen Filter .............................. 388
E
Elapsed Time............................................ 101
Electric Power Steering (EPS) System Indicator ........................................... 74, 424
Electronic Stability Control (ESC) ............ 311
Emergency ................................................ 429 Emissions Testing (Readiness Codes)
....... 437
Engine ....................................................... 434
Coolant ................................................... 360
Jump Starting .......................................... 417
Oil ........................................................... 355
Remote Engine Start ................................ 272
Starting ................................................... 270
Engine Coolant ......................................... 360
Adding to the Radiator ............................ 361
Adding to the Reserve Tank ..................... 360
Overheating ............................................ 420
Temperature Gauge .................................. 95
Engine Oil ................................................. 355
Adding .................................................... 357
Checking ................................................. 356
Displaying Oil Life .................................... 349
Low Oil Pressure Indicator .................. 69, 422
Recommended Engine Oil ........................ 355
ENGINE START/STOP Button .................... 146
EPS (Electric Power Steering) System ............................................... 74, 424
Exhaust Gas Hazard
(Carbon Monoxide) .................................. 64
Exterior Care (Cleaning) ........................... 391
Exterior Mirrors ........................................ 162
F
Features.................................................... 187
Filters Dust and Pollen ....................................... 388
Oil ........................................................... 358
Flat Tire ............................................. 397, 403
Floor Mats ................................................. 390
Fluids
Automatic Transmission .......................... 362
Brake ...................................................... 363
Engine Coolant ....................................... 360
Windshield Washer ................................. 364
Fog Light Indicator ..................................... 76
Folding Down the Rear Seats .................. 169
Foot Brake ................................................ 321
Front Airbags (SRS) ..................................... 42
Front Seats ................................................ 164
Adjusting ................................................ 164
Front Sensor Camera ................................ 284
Fuel ...................................................... 17, 341
Economy ................................................. 343
Gauge ....................................................... 95
Instant Fuel Economy .............................. 100
Low Fuel Indicator ..................................... 71
Range ..................................................... 101
Recommendation .................................... 341
Refueling................................................. 341
Fuel Economy ........................................... 343
Fuel Fill Cap ........................................ 17, 342
Message.................................................. 423
Fuel Fill Door ...................................... 17, 342

447
Index
System Message ....................................... 77
Transmission ............................................. 70
Turn Signal ............................................... 75
Vehicle Stability Assist (VSA®)
System ............................................ 73, 311
VSA ® OFF.......................................... 73, 312
Information .............................................. 431
Instrument Panel ........................................ 67
Brightness Control .................................. 156
Interior Lights ........................................... 171
Interior Rearview Mirror ......................... 161
iPod ®......................................................... 207
J
Jack (Wheel Nut Wrench) ........................ 400
Jump Starting ........................................... 417
K
Key Number Tag ...................................... 123
Keyless Access System .............................. 125
Keyless Lockout Prevention ..................... 128
Keys ........................................................... 121
Lockout Prevention ................................. 128
Number Tag............................................ 123
Rear Door Won’t Open ........................... 131
Remote Transmitter ................................ 127
Two-way Keyless Access
Remote ................................. 121, 129, 272
Types and Functions................................ 121 Kickdown (Automatic Transmission)
....... 276
L
Lane Departure Warning (LDW).............. 299
Lane Keeping Assist System (LKAS) ......... 303
Language (HFL) ......................................... 227
LATCH (Child Seats) .............................. 57, 60
LDW (Lane Departure Warning) .............. 299
Lights ................................................. 149, 365
Automatic ............................................... 150
Bulb Replacement .................................... 365
Daytime Running Lights ........................... 152
Fog Lights ................................................ 152
High Beam Indicator .................................. 75
Interior .................................................... 171
Light Switches ......................................... 149
Lights On Indicator .................................... 76
Turn Signals and Hazard Warning ............ 149
Load Limits ................................................ 261
Locking/Unlocking .................................... 121
Auto Door Locking/Unlocking .................. 132
Childproof Door Locks ............................. 131
From Inside .............................................. 130
From Outside ........................................... 125
Keys ........................................................ 121
Using a Key ............................................. 128
Lockout Prevention System ...................... 128
Low Battery Charge .................................. 422
Low Fuel Indicator ...................................... 71
Low Oil Pressure Indicator ................. 69, 422Lower Anchors
...................................... 57, 60
Luggage (Maximum Load Limit) ............. 261
Lumbar Support ....................................... 164M
Maintenance............................................. 345
Battery .................................................... 385
Brake Fluid .............................................. 363
Cleaning ................................................. 389
Climate Control System ........................... 388
Coolant ................................................... 360
Maintenance Minder
TM............................ 349
Oil ........................................................... 356
Precautions ............................................. 346
Radiator .................................................. 361
Remote Transmitter ......................... 386, 387
Replacing Light Bulbs .............................. 365
Safety...................................................... 347
Service Items ........................................... 351
Tires ........................................................ 376
Transmission Fluid ................................... 362
Under the Hood ...................................... 353
Malfunction Indicator Lamp .............. 69, 423
Map Lights ................................................ 171
Maximum Load Limit ............................... 261
Meters, Gauges ........................................... 95