2012 Acura ZDX warning

258
uuBraking uCMBSTM (Collision Mitigation Braking SystemTM)*
Driving
The system has three alert stages for a possible collis ion. However, depending on the circumstances, CMBSTM may not go through all of
the stages before init iating the last stage.
■Collision Alert Stages
Distance between vehicles
CMBSTM
The radar sensor
detects a vehicleE-pretensionerAudio & Visual WARNINGSBraking
Stage one
There is a risk of
a collision with
the vehicle
ahead of you.
—
BRAKE flashes
on the multi-
information
display.
—
A beep sounds
and BRAKE
flashes on the
multi-
information
display.
Stage two
The risk of a
collision has
increased, time
to respond is
reduced.
Retracts the driver’s seat belt
gently a few times, providing
a physical warning.
Lightly
applied
Stage three
The CMBSTM
determines that
a collision is
unavoidable.
Forcefully tightens driver and
front passenger seat belts.
Forcefully applied
Your
Vehicle Vehicle
Ahead
Your
VehicleVehicle
Ahead
Your
VehicleVehicle
Ahead

uuRefueling uHow to Refuel
264
Driving
Qualifying gasoline retailers will, in most ca ses, identify their gasoline as having met
“TOP TIER Detergent Gasolin e” standards at the retail location. This fuel is
guaranteed to contain the proper level of detergent additives and be free of metallic
additives. The proper level of detergent additives, and absence of harmful metallic
additives in gasoline, help avoid build-up of deposits in your engine and emission
control system.
For further important fuel-related information for your vehicle, or on information on
gasoline that does not contain MMT, visit My Acura at owners.acura.com. In
Canada, visit www.acura.ca for additional information on gasoline. For more
information on top tier gasoline, visit www.toptiergas.com.
■Fuel tank capacity: 21.00 US gal (79.5 liters)
How to Refuel
1.Stop your vehicle with the service station
pump on the left side of the vehicle in the
rear.
2. Turn off the engine.
3. Unlock the driver’s door using the master
door lock switch.
u The fuel fill door on the outer side of the
vehicle will unlock.
1How to Refuel
3WARNING
Gasoline is highly flammable and explosive.
You can be burned or seriously injured
when handling fuel.
• Stop the engine, and keep heat, sparks,
and flame away.
• Handle fuel only outdoors.
• Wipe up spills immediately.
Master Door
Lock Switch To Unlock
To Lock

267
Driving
Accessories and Modifications
Accessories
When installing accessories, check the following:
•Do not install accessories on the windshi eld. They can obstruct your view and
delay your reaction to driving conditions.
• Do not install accessories on the side pillars or across the side windows.
Accessories installed in th ese areas may interfere with proper operation of the
side curtain airbags.
• Be sure electronic accessories do not overlo ad electrical circuits or interfere with
proper operation of your vehicle.
2 Fuses P. 338
•Before installing any electronic accessory, have the installer contact a dealer for
assistance. If possible, have a deal er inspect the final installation.
Modifications
Do not modify your vehicle or use non-Acura components that can affect its
handling, stability, and reliability.
Overall vehicle performance can be affected . Always make sure all equipment is
properly installed and maintained, and that it meets federal, state, province,
territory, and local regulations.
1 Accessories and Modifications
Acura Genuine accessorie s are recommended to
ensure proper operation on your vehicle.
3WARNING
Improper accessories or modifications can
affect your vehicle’s handling, stability, and
performance, and cause a crash in which
you can be seriously hurt or killed.
Follow all instructions in this owner’s
manual regarding accessories and
modifications.

271
uuBefore Performing Maintenance uSafety When Performing Maintenance
Maintenance
Safety When Performing Maintenance
Some of the most important safe ty precautions are given here.
However, we cannot warn you of every conceivable hazard that can arise in
performing maintenance. Only you can decide whether or not you should perform
a given task.
• To reduce the possibility of fire or expl osion, keep cigarettes, sparks, and flames
away from the battery and all fuel related parts.
• To clean parts, use a comm ercially available degreaser or parts cleaner, not
gasoline.
• Wear eye protection and pr otective clothing when working with the battery or
compressed air.
• Engine exhaust contains carbon monoxide, which is poisonous and can kill you.
u Only operate the engine if th ere is sufficient ventilation.
• The vehicle must be in a stationary condition.
u Make sure your vehicle is parked on level ground, the parking brake is set, and
the engine is off.
• Be aware that hot parts can burn you.
u Make sure to let the engine and exha ust system cool thoroughly before
touching vehicle parts.
• Be aware that moving parts can injure you.
u Do not start the engine unless instruct ed, and keep your hands and limbs away
from moving parts.
■Maintenance Safety
■Vehicle Safety
1 Safety When Performing Maintenance
3WARNING
Improperly maintaining this vehicle or
failing to correct a problem before driving
can cause a crash in which you can be
seriously hurt or killed.
Always follow the inspection and
maintenance recommendations according
to the schedules in this owner’s manual.
3WARNING
Failure to properly follow maintenance
instructions and precautions can cause you
to be seriously hurt or killed.
Always follow the procedures and
precautions in this owner’s manual.

uuMaintenance Under the Hood uEngine Coolant
286
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
NOTICEPour the fluid slowly and carefully 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

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)

uuChecking and Maintaining Tires uDOT Tire Quality Grading (U.S. Vehicles)
304
Maintenance
The traction grades, from highest to lowest, are AA, A, B, and C.
Those grades represent the tire’s ability to stop on wet pavement
as measured under controlled conditions on specified
government test surfaces of asphal t and concrete. A tire marked
C may have poor traction performance.
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of heat and its
ability to dissipate heat when te sted under controlled conditions
on a specified indoor laboratory test wheel. Sustained high
temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temp erature can lead to sudden tire
failure. The grade C corresponds to a level of performance which
all passenger car tires must meet under the Federal Motor Vehicle
Safety Standard No. 109. Grades B and A represent higher levels
of performance on the laboratory test wheel than the minimum
required by law.
■Traction
■Temperature
1 Traction
Warning: The traction grade
assigned to this tire is based on
straight-ahead braking traction tests,
and does not include acceleration,
cornering, hydroplaning, or peak
traction characteristics.
1Temperature
Warning: The temperature grade for
this tire is establishe d for a tire that is
properly inflated and not
overloaded. Excessive speed,
underinflation, or excessive loading,
either separately or in combination,
can cause heat buildup and possible
tire failure.

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.