Page 7 of 709

Contents
Child Safety P. 64Exhaust Gas Hazard P. 77Safety Labels P. 78
Tailgate P. 173 Security System P. 183Windows P. 186
Operating the Switches Around the Steering Wheel P. 193 Mirrors P. 213
Interior Convenience Items P. 230 Climate Control System P. 247
Audio Error Messages P. 332General Information on the Audio System P. 336
Bluetooth ® HandsFreeLink ® P. 389 AcuraLink ® P. 419
Off-Highway Driving Guidelines P. 441 When Driving P. 443 AcuraWatchTM P. 483
Multi-View Rear Camera* P. 564 Surround View Camera System*P. 566 Refueling P. 574
Maintenance Under the Hood P. 590 Replacing Light Bulbs P. 603
Checking and Maintaining Tires P. 612 Battery P. 621 Remote Transmitter Care P. 623
Accessories and Modifications P. 633
Handling of the Jack P. 659 Engine Does Not Start P. 660 If the Battery Is Dead P. 663
Fuses P. 674 Emergency Towing P. 681
If You Cannot Open the Tailgate P. 683 Refueling P. 684
Devices that Emit Radio Waves P. 689 Reporting Safety Defects P. 690 Emissions Testing P. 691
Client Service Information P. 697
Quick Reference GuideP. 6
Safe DrivingP. 31
Instrument PanelP. 79
ControlsP. 153
FeaturesP. 253
DrivingP. 429
MaintenanceP. 579
Handling the UnexpectedP. 635
InformationP. 685
IndexP. 698
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Page 100 of 709
98
uuIndicators u
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Turn Signal and
Hazard
Warning
Indicators•Blinks when you operate the turn
signal lever.
• Blink along with all turn signals
when you press the hazard warning
button.• Does not blink or blinks rapidly
2 Replacing Light Bulbs P. 603
—
High Beam
Indicator•Comes on when the high beam
headlights are on.——
Lights On
Indicator•Comes on when the parking, tail,
and other external lights are on.2 Light Switches P. 197—
Fog Light
Indicator*
•Comes on when the fog lights are
on.2 Fog Lights* P. 200—
Auto High-
Beam Indicator•Comes on when all the operating
conditions of the auto high-beam
are met.
2 Auto High-Beam P. 201—
* Not available on all models
22 ACURA RDX-31TJB6300.book 98 ページ 2021年8月2日 月曜日 午前11時0分
Page 388 of 709

386
Features
HomeLink® Universal Transceiver
The HomeLink ® Universal Transceiver can be pr ogrammed to operate up to three
remote controlled devices around your home, such as garage doors, lighting, or
home security systems.
Refer to the safety information that came wi th your garage door opener to test that
the safety features are functioning properly. If you do not have the safety
information, contact the manufacturer.
Before programming HomeLink, make sure that people and objects are out of the
way of the garage or gate to prevent potential injury or damage.
When programming a garage door opener, park just outside the garage door’s path.
■Important Safety Precautions
1HomeLink ® Universal Transceiver
Before programming HomeLi nk to operate a garage
door opener, confirm that the opener has an external
entrapment protection system, such as an “electronic
eye,” or other safety and reverse stop features. If it
does not, HomeLink may not be able to operate it.
NOTE:
Some LED lightbulbs instal led in the garage door
opener can interfere with th e training and consistent
operation of your HomeLink device. Please consider
use of Low RF interference bulbs in your garage door
opener.
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Page 581 of 709

579
Maintenance
This chapter discusses basic maintenance.
Before Performing MaintenanceInspection and Maintenance ............ 580
Safety When Performing Maintenance ..581
Parts and Fluids Used in Maintenance Service ........................................... 582
Maintenance Minder
TM..................... 583
Maintenance Under the Hood Maintenance Items Under the Hood .. 590
Opening the Hood ........................... 591
Engine Compartment Cover ............. 592
Recommended Engine Oil ................ 593
Oil Check ......................................... 594
Adding Engine Oil ............................ 595 Changing the Engine Oi
l and Oil Filter .. 596
Engine Coolant ................................ 598
Transmission Fluid ............................ 600
Brake Fluid ....................................... 601
Refilling Window Washer Fluid......... 602
Replacing Light Bulbs ....................... 603Checking and Maintaining Wiper
Blades .......................................... 607
Checking and Maintaining Tires
Checking Tires ................................. 612
Tire and Loading Information Label .. 613
Tire Labeling .................................... 613
DOT Tire Quality Grading (U.S. Vehicles).. 615
Wear Indicators ............................... 617
Tire Service Life ................................ 617
Tire and Wheel Replacement ........... 618
Tire Rotation .................................... 619
Winter Tires ..................................... 620
Battery ............................................... 621
Remote Transmitter Care Replacing the Remote Battery .......... 623
Climate Control System Maintenance.. 625Cleaning
Interior Care .................................... 627
Exterior Care.................................... 629
Accessories and Modifications ........ 633
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Page 582 of 709

580
Maintenance
Before Performing Maintenance
Inspection and Maintenance
For your safety, perform all listed inspections and maintenance to keep your vehicle
in good condition. If you become aware of an y abnormality (noise, smell, insufficient
brake fluid, oil residue on the ground, etc.), have your vehicle inspected by a dealer.
(Note, however, that service at a dealer is not mandatory to keep your warranties in
effect.) Refer to the separate maintena nce booklet for detailed maintenance and
inspection information.
■Routine inspections
Perform inspections before long distance trips, when washing the vehicle, or when
refueling.
2 Maintenance P. 26
■Periodic inspections
• Check the brake fluid level monthly.
2 Checking the Brake Fluid P. 601
•Check the tire pressure monthly. Examin e the tread for wear and foreign objects.
2Checking and Maintaining Tires P. 612
•Check the operation of the exterior lights monthly.
2 Replacing Light Bulbs P. 603
•Check the condition of the wiper bl ades at least every six months.
2Checking and Maintaining Wiper Blades P. 607
■Types of Inspection and Maintenance
1Inspection and Maintenance
Maintenance, replacement, or repair of
emissions control devices and systems may be
done by any automotive repair establishment or
individuals using parts that are “certified” to
EPA standards.
According to state and fede ral regulations, failure to
perform maintenance on the maintenance main
items marked with # will not void your emissions
warranties. However, all ma intenance services should
be performed in accordan ce with the intervals
indicated by the mult i-information display.
2 Maintenance Service Items P. 587
If you want to perform complex maintenance tasks
that require more skills a nd tools, you can purchase a
subscription to the Service Express website at
www.techinfo.acura.com .
2 Authorized Manuals P. 696
If you want to perform ma intenance yourself, make
sure that you have the necessary tools and skills first.
After performing maintenanc e, update the records in
the separate maintenance booklet.
U.S. models
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Page 605 of 709
603
Maintenance
Replacing Light Bulbs
Headlights
Headlights are LED type. Have an authorized Acura dealer inspect and replace the
light assembly.
Front Turn Signal, Parking/Daytime Running and
Front Side Marker Lights
Front turn signal, parking/daytime running and front side marker lights are LED type.
Have an authorized Acura dealer in spect and replace the light assembly.
Fog Lights*
Fog lights are LED type. Have an authoriz ed Acura dealer inspect and replace the
light assembly.
Side Turn Signal/Emer gency Indicator Lights
Door mirror side turn lights are LED type. Have an authorized Acura dealer inspect
and replace the light assembly.
1 Headlights
The headlight aim is set by the factory, and does not
need to be adjusted. Howeve r, if you regularly carry
heavy items in the cargo area or tow a trailer, have
the aiming readjusted at a dealer or by a qualified
technician.
* Not available on all models
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Page 606 of 709
604
uuReplacing Light Bulbs uRear Turn Signal Light Bulbs
Maintenance
Rear Turn Signal Light Bulbs
When replacing, use the following bulbs.
1.Remove the cover by prying on the edge
using a flat-tip screwdriver.
u Wrap the flat-tip screwdriver with a cloth
to prevent scratches.
2. Use a Phillips-head screwdriver to remove
the bolts.
3. Pull the light assembly out of the rear pillar.
Rear Turn Signal Light: 21 W (PY21W Amber/Silver)
Cover
Bolts
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605
uuReplacing Light Bulbs uTaillights, Brake and Rear Side Marker Lights
Maintenance
4. Turn the socket counterclockwise and
remove it.
5. Remove the old bulb and insert a new bulb.
Taillights, Brake and Rear Side Marker Lights
Taillights, brake and rear side marker ligh ts are LED type. Have an authorized Acura
dealer inspect and replace the light assembly.
Bulb
Socket
22 ACURA RDX-31TJB6300.book 605 ページ 2021年8月2日 月曜日 午前11時0分