Page 608 of 709
606
uuReplacing Light Bulbs uTaillights/Brake and Back-Up Lights
Maintenance
Taillights/Brake an d Back-Up Lights
Taillights/brake and back-up li ghts are LED type. Have an authorized Acura dealer
inspect and replace the light assembly.
Rear License Plate Light
Rear license plate light is LED type. Have an authorized Acura dealer inspect and
replace the light assembly.
High-Mount Brake Light
High-mount brake light is LED type. Have an authorized Acura dealer inspect and
replace the light assembly.
Puddle Lights*
Puddle lights are LED type. Have an author ized Acura dealer inspect and replace the
light assembly.
* Not available on all models
22 ACURA RDX-31TJB6300.book 606 ページ 2021年8月2日 月曜日 午前11時0分
Page 634 of 709

632
uuCleaning uExterior Care
Maintenance
Aluminum is susceptible to deterioration caused by salt and other road
contaminants. When necessary, as early as possible use a sponge and mild detergent
to wipe away these contaminants. Do no t use a stiff brush or harsh chemicals
(including some commercial wheel cleaners). These can damage the protective finish
on aluminum alloy wheels, resulting in corrosion. Depending on the type of finish,
the wheels also may lose their luster or appear burnished. To avoid water stains,
wipe the wheels dry with a cloth while they are still wet.
The inside lenses of exterior lights (headli ghts, brake lights, etc.) may fog temporarily
if you have driven in the rain, or after the vehicle has been run through a car wash.
Dew condensation also may build up inside the lenses when there is a significant
enough difference between the ambient and inside lens temperatures (similar to
vehicle windows fogging up in rainy conditions). These conditions are natural
processes, not structural design problems in the exterior lights.
Lens design characteristics may result in mo isture developing on the light lens frame
surfaces. This also is not a malfunction.
However, if you see large amounts of wa ter accumulation, or large water drops
building up inside the lenses, have your vehicle inspected by a dealer.
■Maintaining Aluminum Wheels
■Fogged Exterior Light Lenses
22 ACURA RDX-31TJB6300.book 632 ページ 2021年8月2日 月曜日 午前11時0分
Page 639 of 709

637Continued
Handling the Unexpected
If a Tire Goes Flat
Changing a Flat Tire
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually
to reduce speed. Then, stop in a safe plac e. Replace the flat tire with a compact
spare tire. Go to a dealer as soon as possib le to have the full-size tire repaired or
replaced.
1. Park the vehicle on a firm, level, non-slippery surface and apply the parking brake.
2. Change the gear position to
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF
(LOCK).
Vehicles with a compact spare tire
1 Changing a Flat Tire
Follow compact spare precautions:
Periodically check the tire pressure of the compact
spare. It should be set to the specified pressure.
Specified Pressure: 60 psi (420 kPa, 4.2 kgf/cm
2)
When driving with the compact spare tire, keep the
vehicle speed under 50 mph (80 km/h). Replace with
a full-size tire as soon as possible.
The compact spare tire and wheel in your vehicle are
specifically for this model. Do not use them with
another vehicle. Do not us e another type of compact
spare tire or wheel with your vehicle.
Do not mount tire chains on a compact spare tire.
If a chain-mounted front tire goes flat, remove one of
the full-size rear tires and replace it with the compact
spare tire. Remove the flat front tire and replace it
with the full-size tire that was removed from the rear.
Mount the tire chains on the front tire.
Do not use a puncture-repairi ng agent on a flat tire,
as it can damage the tire pressure sensor.
22 ACURA RDX-31TJB6300.book 637 ページ 2021年8月2日 月曜日 午前11時0分
Page 647 of 709

645
uuIf a Tire Goes Flat uTemporarily Repairing a Flat Tire
Continued
Handling the Unexpected
Temporarily Repairing a Flat Tire
If the tire has a large cut or is otherwise severely damaged, you will need to have the
vehicle towed. If the tire only has a small puncture, from a nail for instance, you can
use the temporary tire repair kit so that you can drive to the nearest service station
for a more permanent repair.
If a tire goes flat while driving, grasp the steering wheel firmly, and brake gradually
to reduce speed. Then, stop in a safe place.
1. Park the vehicle on a firm, level, and n on-slippery surface and apply the parking
brake.
2. Change the gear position to
(P.
3. Turn on the hazard warning lights an d set the power mode to VEHICLE OFF
(LOCK).
Vehicles with temporary tire repair kit
1 Temporarily Repairing a Flat Tire
The kit should not be used in the following situations.
Instead, contact a dealer or roadside assistance to
have the vehicle towed.
•The tire sealant has expired.
•More than one tire is punctured.•The puncture or cut is larger than 3/16 inch (4.8 mm).
•The tire side wall is damaged or the puncture is
outside the contact area.
•Damage has been caused by driving with the tire
extremely under inflated.
•The tire bead is no longer seated.
•The rim is damaged.
Do not remove a nail or screw that punctured the
tire. If you remove it from the tire, you may not be
able to repair the puncture using the kit.
NOTICE
Do not use a puncture-repairing agent other than the
one provided in the kit that came with your vehicle. If
a different agent is used, you may permanently
damage the tire pressure sensor.
When the puncture is:Kit Use
Smaller than 3/16 inch (4.8 mm)Yes
Larger than 3/16 inch (4.8 mm)No
Contact
Area
22 ACURA RDX-31TJB6300.book 645 ページ 2021年8月2日 月曜日 午前11時0分
Page 671 of 709

669
uuIndicator, Coming On/BlinkinguIf the Brake System Indicator (Red) Comes On or Blinks
Handling the Unexpected
If the Brake System Indicator (Red) Comes On or
Blinks
■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
Depress the brake pedal lightly to check pedal pressure.
• If normal, check the brake fluid level the next time you stop.
• If abnormal, take immediate acti on. If necessary, downshift the
transmission to slow the vehicle using engine braking.
■Reasons for the indicator to blink
• There is a problem with the electric parking brake system.
■What to do when the indicator blinks
• Avoid using the parking brake and have your vehicle checked by a
dealer immediately.
1 If the Brake System Indicator (Red) Comes On or Blinks
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 (red) and ABS indicator
come on simultaneously , the electronic brake
distribution system is not wo rking. This can result in
vehicle instability under sudden braking.
Have your vehicle inspecte d by a dealer immediately.
If the Brake System Indicator (Red) blinks at the same
time when the Brake System Indicator (Amber) comes
on, the parking br ake may not work.
Avoid using the parking brak e and have your vehicle
checked by a dealer immediately. 2 If the Brake System Indicator (Red) Comes
On or Blinks at the Same Time When the
Brake System Indicator (Amber) Comes On
P. 671
U.S.
Canada
22 ACURA RDX-31TJB6300.book 669 ページ 2021年8月2日 月曜日 午前11時0分
Page 675 of 709
673
uuIndicator, Coming On/BlinkinguIf the Transmission System Indicator Blinks along with the Warning Message
Handling the Unexpected
If the Transmission System Indicator Blinks along
with the Warning Message
■Reasons for the indicator to blink
The transmission is malfunctioning.
■What to do when the indicator blinks
• Immediately have your vehicle inspected by
a dealer.
• Change the gear position to
(N after
starting the engine.
u Check if the
(N position in the
instrument panel and the indicator on
the
(N button light/blink.
u The engine cannot be turned on unless
the parking brake is set.
2 Starting the Engine P. 443
1If the Transmission System In dicator Blinks along with the
Warning Message
You may not be able to start the engine.
Make sure to set the pa rking brake when parking
your vehicle.
Call a professional towing service if you need to tow
your vehicle. 2 Emergency Towing P. 681
22 ACURA RDX-31TJB6300.book 673 ページ 2021年8月2日 月曜日 午前11時0分
Page 688 of 709

686
Information
Specifications
■Vehicle Specifications
■ Air Conditioning
ModelRDX
No. of Passengers:
Front 2
Rear 3
Total 5
Weights:Gross Vehicle
Weight RatingSee the certification label on the driver’s
doorjamb
Gross Axle Weight
Rating (Front)See the certification label on the driver’s
doorjamb
Gross Axle Weight
Rating (Rear)See the certification label on the driver’s
doorjamb
Gross Combined
Weight Rating U.S.: 5,975 lbs (2,710 kg)
Canada: 2,710 kg
Refrigerant TypeHFO-1234yf (R-1234yf)
Charge Quantity 17.8 – 19.6 oz (505 – 555 g)
Lubricant TypeND-OIL14 (POE)
Quantity 4.27 – 5.19 cu-in (70 – 85 cm3)
■
Engine Specifications
■ Fuel
■ Washer Fluid
Displacement121.76 cu-in (1,996 cm3)
Spark Plugs NGK DILKAR8P8SY
TypeUnleaded premium gasoline, pump octane
number 91 or higher
Fuel Tank Capacity 17.1 US gal (64.7 L)
Tank CapacityU.S.: 2.6 US qt (2.5 L)
Canada: 5.8 US qt (5.5 L)
■ Light Bulbs
Headlights (Low Beam)LED
Headlights (High Beam) LED
Fog Lights*LED
Parking/Daytime Running Lights LED
Front Turn Signal LightsLED
Side Turn Signal Lights
(on Door Mirrors) LED
Front Side Marker LightsLED
Brake Lights LED
Rear Side Marker LightsLED
Brake/Taillights LED
TaillightsLED
Back-Up Lights LED
Rear Turn Signal Lights21 W (Amber/Silver)
High-Mount Brake Light LED
Rear License Plate LightLED
Puddle Lights*LEDInterior LightsFront and Rear Map LightsLEDFront and Rear Ambient LightsLEDVanity Mirror Lights1.4 WDoor Pocket Lights*LEDCenter Pocket LightLEDDoor Courtesy Lights3.4 WGlove Box Light1.4 WCargo Area LightLEDDoor Inner Handle LightsLEDFoot LightsLED
* Not available on all models
22 ACURA RDX-31TJB6300.book 686 ページ 2021年8月2日 月曜日 午前11時0分
Page 694 of 709
692
uuEmissions Testing uTesting of Readiness Codes
Information
7. Select a nearby, lightly traveled major hi ghway where you can maintain a speed
of 50 to 60 mph (80 to 97 km/h) for at least 20 minutes. Drive on the highway in
(D. Do not use cruise control. When tra ffic allows, drive for 90 seconds without
moving the accelerator pedal. (Vehicle spee d may vary slightly; this is okay.) If you
cannot do this for a continuous 90 seconds because of traffic conditions, drive for
at least 30 seconds, then repeat it two mo re times (for a total of 90 seconds).
8. Drive in city or suburban traffic for at le ast 10 minutes. When traffic conditions
allow, let the vehicle coast for several se conds without using the accelerator pedal
or the brake pedal.
9. Park the vehicle and leave the engine off for 30 minutes.
22 ACURA RDX-31TJB6300.book 692 ページ 2021年8月2日 月曜日 午前11時0分