Page 6 of 709

Contents
This owner’s manual should be considered a permanent part of the
vehicle and should remain with the vehicle when it is sold.
The Navigation Manual is available online at owners.acura.com
(U.S.) or acura.ca (Canada). If you are the firs t registered owner
of your vehicle, you may request a complimentary printed
copy of the Navigation Manual within the first six months of
vehicle purchase. To request a copy, visit owners.acura.com. In
Canada, please request a copy from your Acura dealer.
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. 31
For Safe Driving P. 32 Seat Belts P. 37 Airbags P. 46
2Instrument Panel P. 79
Indicators P. 80 Gauges and Displays P. 136
2Controls P. 153
Clock P. 154 Locking and Unlocking the Doors P. 156
Panoramic Roof P. 189
Seats P. 216
2 Features P. 253
Audio System P. 254 Audio System Basic Operation P. 260
Customized Features P. 359 HomeLink® Universal Transceiver P. 386
2 Driving P. 429
Before Driving P. 430 Towing a Trailer P. 435
Braking P. 545Parking Your Vehicle P. 554
Fuel Economy and CO2 Emissions P. 577 Turbo Engine Vehicle P. 578
2 Maintenance P. 579
Before Performing Maintenance P. 580 Maintenance MinderTM P. 583
Checking and Maintaining Wiper Blades P. 607
Climate Control System Main tenance P. 625 Cleaning P. 627
2Handling the Unexpected P. 635
Tools P. 636 If a Tire Goes Flat P. 637
Overheating P. 665 Indicator, Coming On/Blinking P. 667
If You Cannot Unlock the Fuel Fill Door P. 682
2 Information P. 685
Specifications P. 686 Identification Numbers P. 688
Warranty Coverages P. 693 Authorized Manuals P. 696
22 ACURA RDX-31TJB6300.book 4 ページ 2021年8月2日 月曜日 午前11時0分
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
22 ACURA RDX-31TJB6300.book 5 ページ 2021年8月2日 月曜日 午前11時0分
Page 12 of 709
Visual Index
10
Quick Reference Guide
❚How to Refuel (P 575)
❚High-Mount Brake Light (P 606)
❚Opening/Closing the Tailgate (P173)
❚Rear Wiper (P 206, 610)
❚Taillights, Brake and Rear Side Marker Lights (P 197, 605)
❚Rear Turn Signal Lights (P 196, 604)
❚Multi-View Rear Camera* (P 564)
❚Rear License Plate Light (P 197, 606)
❚Tailgate Outer Handle (P 178, 182)
❚Taillights/Brake and Back-Up Lights (P 197, 606)
❚Windshield Wipers (P 204, 607)
❚Power Door Mirrors (P 214)
❚Maintenance Under the Hood (P 590)
❚Fog Lights* (P 200, 603)
❚Tires (P 612, 637, 645)
❚Door Lock/Unlock Control (P 160)
❚Front Turn Signal Lights (P 196, 603)
❚Parking/Daytime Running Lights (P 197, 603)
❚Side Turn Signal Lights (P 196, 603)
❚Headlights (P 197, 603)
❚Front Side Marker Lights (P197, 603)
❚Surround View Camera System* (P 566)
❚Rearview Camera Washer* (P 204)
22 ACURA RDX-31TJB6300.book 10 ページ 2021年8月2日 月曜日 午前11時0分
Page 13 of 709
11
Quick Reference Guide
Auto Idle Stop Function
To improve fuel economy, the engine stops and then restarts as detailed below. When Auto Idle Stop is on, the Auto Idle Stop in dicator
(green) comes on. (P464)
At Automatic transmissionEngine status
Deceleration
Stop
Start-up
Depress the brake pedal.
Automatic Brake Hold Off
(P550) Automatic Brake Hold On
(P550)
On
Keep the brake pedal
depressed. With the automatic brake hold system
activated, you can release the brake pedal
when the indicato
r (green) comes on.
U.S. Canada
Off
Release the brake pedal. With the automatic brake hold system
activated, depress the accelerator pedal.Restarting
*
Not available on all models
22 ACURA RDX-31TJB6300.book 11 ページ 2021年8月2日 月曜日 午前11時0分
Page 15 of 709
13
Quick Reference Guide
Instrument Panel (P 79)
Indicators (P 80)/Multi-Information Display (P 137)/Gauges (P 136)/
Head-Up Display
* (P 148)
Speedometer
Fuel Gauge
Multi-Information Display
Temperature Gauge
Tachometer
Head-Up Display
*
Immobilizer System Indicator/
Security System Alarm Indicator
Gear Position Indicator/
Transmission System Indicator Turbo Meter
M (sequential mode) Indicator/
Gear Selection Indicator
G-meter
* Not available on all models
22 ACURA RDX-31TJB6300.book 13 ページ 2021年8月2日 月曜日 午前11時0分
Page 25 of 709

23
Quick Reference Guide
CMBSTM On and Off
(P490)
●When a possible frontal collision is likely
unavoidable, the CMBSTM can help you to
reduce the vehicle speed and the severity
of the collision.
●The CMBSTM is turned on every time you
start the engine.
●To turn the CMBSTM on or off, use the
safety support switch.
VSA ® On and Off (P 472)
●The Vehicle Stability AssistTM (VSA® )
system helps stabilize the vehicle during
cornering and helps maintain traction
while accelerating on loose or slippery
road surfaces.
●VSA ® comes on automatically every time
you start the engine.
●To partially disable or fully restore VSA ®
function, press and hold the (VSA ®
OFF) button until you hear a beep.
Tire Pressure Monitoring
System (TPMS) with Tire
Fill Assist
(P 475)
●The TPMS monitors tire pressure.●TPMS is turned on automatically every
time you start the engine.
●TPMS fill assist provides audible and visual
guidance during tire pressure adjustment.
Refueling (P 574)
Fuel recommendation: Unleaded premium gasoline, pump octane number 91 or
higher
Fuel tank capacity: 17.1 US gal (64.7 L)
aUnlock the driver’s door. 2 Locking/Unlocking the
Doors from the Inside
(P169)
bPress on the edge of the
fuel fill door to make it
pop up slightly.
cAfter refueling, wait for
about five seconds before
removing the filler nozzle.Wait for five seconds
22 ACURA RDX-31TJB6300.book 23 ページ 2021年8月2日 月曜日 午前11時0分
Page 82 of 709

80
Instrument Panel
Indicators
M (sequential mode)
Indicator/Gear
Selection Indicator P. 87
Parking Brake and
Brake System
Indicator (Red)
Parking Brake and
Brake System
Indicator (Amber)
U.S.
Canada
U.S.
Canada Automatic Brake
Hold System Indicator
Automatic Brake Hold
IndicatorU.S.
Canada
*1 : When you set the power mode to ON, these indicators come on to indicate that system checks are being perf ormed. They go off a few seconds later or after the engine
has started. If an indicator does not come on or turn off, th ere may be a malfunction in the corresponding system. To resolve the issue, follow the instructions in the
owner's manual.
P. 81*1
Malfunction Indicator
Lamp
Charging System
Indicator
Anti-lock Brake System
(ABS ) Indicator
Seat Belt Reminder
Indicator
Low Fuel Indicator
(Amber)
Vehicle Stability AssistTM
(VSA®) System Indicator
Vehicle Stability Assist
TM
(VSA®) OFF Indicator
Supplemental Restraint
System Indicator
Auto High-Beam
Indicator
Low Tire Pressure/TPMS
Indicator Electric Power Steering
(EPS) System Indicator
Turn Signal and Hazard
Warning Indicators
Lights On Indicator High Beam Indicator
Fog Light Indicator*
Maintenance Minder
Indicator
System Message Indicator
P. 83
P. 85
P. 85
P. 86
P. 87*1 *1
P. 97
*1
*1
Gear Position Indicator P. 87
Transmission System
Indicator P. 88
P. 93
P. 94
P. 94
P. 95
P. 98
P. 96
*1
*1
*1
P. 96
*1 P. 95
P. 98
*1
P. 98
P. 98
P. 101
P. 98
Immobilizer System
Indicator P. 99
Security System Alarm
Indicator P. 99
P. 100
*1
*1 *1
Super Handling-All Wheel
DriveTM ( SH-AWD ®)
System Indicator* P. 101*1
Cruise Mode Indicator
(White/Green) P. 101
Auto Idle Stop Suspend
Indicator
Auto Idle Stop System
Indicator (Amber)
Auto Idle Stop Indicator
(Green) P. 90
P. 90
P. 90
Adaptive Cruise Control
(ACC) with Low Speed
Follow Indicator (Amber)
Auto Idle Stop OFF
Indicator P. 90
P. 102
P. 102
P. 102
P. 102
P. 103
P. 106
Adaptive Cruise Control
(ACC) with Low Speed
Follow Indicator (White/
Green)
Lane Keeping Assist System
(LKAS) Indicator (Amber)
Lane Keeping Assist System
(LKAS) Indicator (White/
Green)
Safety Support Indicator
(Amber)
Safety Support Indicator
(Green/Gray)
*1
*1
*1
* Not available on all models
22 ACURA RDX-31TJB6300.book 80 ページ 2021年8月2日 月曜日 午前11時0分
Page 96 of 709
94
uuIndicators u
Instrument Panel
IndicatorNameOn/BlinkingExplanationMessage
Low Fuel
Indicator
(Amber)
•Comes on when the fuel reserve is
running low (approximately 2.4
U.S. gal./9.1 Liter left).• Comes on - Refuel your vehicle as soon
as possible.
●Blinks if there is a problem with the
fuel gauge.●Blinks - Have your vehicle checked by a
dealer.
Anti-lock Brake
System ( ABS)
Indicator
• Comes on if there is a problem with
the ABS.• Stays on constantly - Have your vehicle
checked by a dealer. With this indicator
on, your vehicle still has normal braking
ability but no anti-lock function.
2 Anti-lock Brake System (ABS) P. 552
22 ACURA RDX-31TJB6300.book 94 ページ 2021年8月2日 月曜日 午前11時0分