2012 Acura ZDX wheel size

245
uuWhen Driving uSH-AWD ® (Super Handling-All Wheel DriveTM)
Driving
SH-AWD ® (Super Handling-All Wheel DriveTM)
The system controls and transfers varying amounts of engine torque to each wheel
in accordance with the driving conditions.
SH-AWD® helps to enhance driving stability, and lets you handle situations like
slippery surfaces, such as snow, sand, mud, and steep hill, better than when driving
with two wheel drive. However, the system does not help to enhance braking. Be
precautious about the following:
• It is still your responsibility to drive sa fely when you steer, accelerate, and apply
brakes.
• Leave a sufficient margin when braking on slippery surfaces.1SH-AWD ® (Super Handling-All Wheel DriveTM)
NOTICEAvoid continuously driving in sand or mud where a
wheel is likely to spin out, and do not drive once the
SH-AWD ® indicator starts blinking. Driving
continuously under such conditions can damage the
system’s torque distribution unit.
Do not drive through deep water.
The SH-AWD ® system may not function properly if
tire type and size are mixed.
Make sure to use the same size and type of tire, and
the air pressures as specified.

255
uuBraking uABS (Anti-lock Brake System)
Driving
ABS (Anti-lock Brake System)
Helps prevent the wheels from locking up, an d helps you retain steering control by
pumping the brakes rapidly, much faster than you.
The electronic brake distribution (EBD) sy stem, which is part of the ABS, also
balances the front-to-rear braking distri bution according to vehicle loading.
You should never pump th e brake pedal. Let the ABS work for you by always
keeping firm, steady pressure on the brake pedal. This is sometimes referred to as
“stomp and steer.”
■ABS operation
The brake pedal may pulsate slightly when the ABS is working. Keep holding the
pedal firmly down. On dry pavement, you will need to press on the brake pedal very
hard before the ABS activates. However, you may feel the ABS activate immediately
if you are trying to stop on snow or ice.
When the vehicle speed goes under 6 mph (10 km/h), the ABS stops.
■ABS1 ABS (Anti-lock Brake System)
NOTICEThe ABS may not function correctly if you use an
incorrect tire type and size.
When the ABS indicator comes on while driving,
there may be a problem with the system.
While normal braking is no t affected, there is a
possibility of the ABS not operating. Have the vehicle
checked by a dealer immediately.
The ABS does not reduce the ti me or distance it takes
to stop the vehicle. It only helps with steering control
during hard braking.
In the following cases, your vehicle may need more
stopping distance than a vehicle without the ABS:
•When driving on rough road surfaces, including
when driving on uneven surfaces, such as gravel or
snow.
•When tire chains are installed.
You may hear a motor sound coming from the
engine compartmen t while system checks are being
performed immediately after starting the engine or
while driving. This is normal.

300
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 comb ination of handling, tread life, and comfort.
Refer to the driver’s doorjamb label or spec ification’s page for the specified pressure.
Underinflated tires wear unevenly, adversel y 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 pressu re with a tire gauge.
At least once a month or before long trip s, use a gauge to measure the pressure in
all tires, including the spare. Even tires in good condition can lose 1 to 2 psi (10 to
20 kPa, 0.1 to 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 tread. Replace the tire if you find any cuts,
splits, or cracks in the si de 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. 305
•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
release 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. New tires and any that have
been removed and reinstalled should be properly
balanced.
High speed driving
We recommend that you do not drive faster than the
posted speed limits and conditions allow. If you drive
at sustained high speeds (over 99 mph or 160 km/h),
adjust the cold tire pressures as shown below to
avoid excessive heat build up and sudden tire failure.
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 instructions in this owner’s
manual regarding tire inflation and
maintenance.
Tire SizeP255/50R19 103H
Pressure (front) 33 psi (227 kPa, 2.3 kgf/cm2)

306
uuChecking and Maintaining Tires uTire and Wheel Replacement
Maintenance
Tire and Wheel Replacement
Replace your tires with radials of the sa me size, load range, speed rating, and
maximum cold tire pressure rating (as show n on the tire’s sidewall). Using tires of a
different size or construction can cause the ABS and VSA ® (vehicle stability assist)
system to work incorrectly.
It is best to replace all four tires at the same time. If that isn’t possible, replace the
front or rear tires in pairs.
Make sure that the wheel’s specificati ons match those of the original wheels.
If you replace a wheel, only use TPMS sp ecified wheels approved for your vehicle.1Tire and Wheel Replacement
3WARNING
Installing improper tires on your vehicle can
affect handling and stability. This can cause
a crash in which you can be seriously hurt or
killed.
Always use the size and type of tires
recommended in this owner’s manual.

308
uuChecking and Maintaining Tires uWinter Tires
Maintenance
Winter Tires
If driving on snowy or frozen roads, mount all season marked M+S tires, snow tires,
or tire chains; reduce speed ; and maintain sufficient dist ance between vehicles when
driving.
Be particularly careful when operating the steering wheel or brakes to prevent
skidding.
Use tire chains, snow tires, or all season ti res when necessary or according to the law.
When mounting, refer to the following points.
For winter tires:
• Select the size and load ranges that are the same as the original tires.
• Mount the tires to all four wheels.
For tire chains:
• Install them on the front tires only.
• Because your vehicle has limited tire clearance, we strongly recommend using the
chains listed below:
• Follow the chain manufacturer’s instruction when installing. Mount them as
tightly as you can.
• Check that the chains do not to uch the brake lines or suspension.
• Drive slowly.
Cable-type: SCC Super Z-6#SZ 435
1Winter Tires
NOTICETraction devices that are the wrong size or improperly
installed can damage your vehicle’s brake lines,
suspension, body, and wheels. Stop driving if they are
hitting any part of the vehicle.
When tire chains are mounted, follow the chain
manufacturer’s instructio ns regarding vehicle
operational limits.
3WARNING
Using the wrong chains, or not properly
installing chains, can damage the brake
lines and cause a crash in which you can be
seriously injured or killed.
Follow all instructions in this owner’s
manual regarding the selection and use of
tire chains.

319Continued
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 possible to have the full-size tire repaired or
replaced.
1. Park the vehicle on firm, level, and non-slippery ground.
2. Put the shift lever in
P.
3. Set the parking brake.
4. Turn on the hazard warn ing lights and turn the ignition switch to LOCK
0*1.
*1: Models with the keyless access system have an ENGINE START/STOP button
instead of an ig nition switch.
1Changing a Flat Tire
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 use 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-repairing agent on a flat tire,
as it can dama ge the tire pressure sensor.

350
Information
Specifications
■Vehicle Specifications
*1: The GCWR must be reduced 2 percent for every 1,000 feet (305
meters) of elevation.
■Engine Specifications
■ Fuel
■ Battery
ModelAcura ZDX
No. of Passengers:
Front 2
Rear 3
Total 5
Weights:Gross Vehicle
Weight Rating 5,534 lbs (2,510 kg)
Gross Axle Weight
Rating (Front)2,921 lbs (1,325 kg)Gross Axle Weight
Rating (Rear)2,679 lbs (1,215 kg)
Gross Combined
Weight
*1
Rating (GCWR) 6,593 lbs (2,990 kg)
Air Conditioning:Refrigerant Type HFC-134a (R-134a)Charge Quantity16.9 – 18.7 oz (480 – 530 g)Lubricant TypeND-OIL 8
Displacement223.5 cu-in (3,664 cm3)
Spark Plugs NGK ILZKR7B-11S
DENSO SXU22HCR11S
Fuel:
TypePremium unleaded gasoline, Pump octane
number of 91 or higher
Fuel Tank Capacity 21.00 US gal (79.5 ℓ)
Capacity/Type55AH(5)/65AH(20)
■ Washer Fluid
■ Light Bulbs
■ Brake Fluid
■ Transmission FluidTank Capacity5.2 US qt (4.9 ℓ)
Headlights (High/Low Beam)35W (D2S)
Daytime Running Lights 60W (HB3)
Fog Lights55W (H11)
Front Turn Signal/Parking Lights 28/8W (Amber)
Front Side Marker Lights5W
Side Turn Signal Lights
(on Door Mirrors) LED
Rear Turn Signal Lights21W
Rear Side Marker Lights 3 CP
Back-Up Lights21W
Stop/Taillights 21/5W
High-Mount Brake LightLED
Rear License Plate Lights 5W
Cargo Area Lights8W
Interior Lights
Front and Rear Map
LightsLED
Vanity Mirror Lights2WDoor Courtesy Lights3.4WConsole Compartment Light1.4WGlove Box Light1.4WFoot LightLEDDoor Inner Handle Light*LED
SpecifiedHonda Heavy Duty Brake Fluid DOT 3
SpecifiedAcura ATF DW-1
(automatic transmission fluid)
Capacity Change 3.3 US qt (3.1 ℓ)
■ Rear Differential Fluid
■ Transfer Assembly Fluid
■ Power Steering Fluid
■ Engine Oil
■ Engine Coolant
■ TireSpecifiedAcura All Wheel Drive Fluid (DPSF)
Capacity Change 2.67 US qt (2.53 ℓ)
Specified·SAE 90 or SAE 80W-90 Viscosity Hypoid Gear Oil
·API Service Classified GL4 or GL5 only
Capacity Change 0.45 US qt (0.43 ℓ)
SpecifiedAcura Power Steering Fluid
Recommended·Acura Genuine Motor Oil 5W-20
·API Premium-grade 5W-20 detergent oil
Capacity Change 4.2 US qt (4.0 ℓ)
Change
including
filter
4.5 US qt (4.3 ℓ)
SpecifiedHonda Long-Life Antifreeze/Coolant Type2
Ratio 50/50 with distilled water
Capacity1.77 US gal (6.7 ℓ)
(change including the remaining
0.18 US gal (0.675 ℓ) in the reserve tank)
RegularSizeP255/50R19 103HPressure
psi (kPa [kgf/cm2])32 (220 [2.2])
Compact
Spare Size T165/80D17 104M
Pressure
psi (kPa [kgf/cm
2])
60 (420 [4.2])
Wheel SizeRegular19 x 8.5 JCompact Spare17 x 4 T
* Not available on all models