2011 Acura RDX differential

If this indicator blinks while driving,
it indicates the differential
temperature is too high.
You will also see an‘‘SH-AWD DIFF
TEMP. HIGH ’’message on the multi-
information display (see page 80).
Pull to the side of the road when it is
safe, shift to Park, and let the engine
idle until the indicator goes out. If
the indicator does not go out, take
your vehicle to a dealer to have it
checked.
For more information, see page 385.Continuing to drive with the SH-AWD
indicator blinking may cause serious
damage to the system.
Low Tire Pressure/TPMS
Indicator
This indicator normally comes on for
a few seconds when you turn the
ignition switch to the ON (II)
position.
This indicator has two functions:
1. If it comes on while driving, it indicates that one or more of your
vehicle's tires are significantly low
on pressure. You will also see a
‘‘CHECK TIRE
PRESSURE ’’message on the multi-
information display (see page 79).
Check the tire pressure monitor on
the multi-information display and
determine the cause (see page 392).
If this happens, pull to the side of the
road when it is safe, check which tire
has lost pressure on the multi-
information display, and determine
the cause. If it is because of a flat tire,
have the flat tire repaired as soon as
possible. If two or more tires are
underinflated, call a professional
towing service. For more
information, see page 475.
CONTINUED
Instrument Panel Indicators
71
Instruments and Controls
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Each torque indicator is displayed as
a bar graph divided into 5 segments.
The number of segments represents
the amount of torque distributed to
each wheel.
When there is only a slight change in
torque distribution while driving,
such as cruising on level roads at the
same speed, the torque distribution
monitor may stop displaying the
amount of torque. This is not a
system problem. The monitor will
show the amount if the system
senses any change in torque
distribution.
If the SH-AWD indicator blinks while
driving, it indicates the differential
temperature is too high. You will also
see an‘‘SH-AWD DIFF TEMP
HIGH ’’message on the multi-
information display. If this happens,
pull to the side of the road when it is
safe, shift to Park, and let the engine
idle until the indicator goes out. If
the indicator does not go out, take
your vehicle to a dealer to have it
checked.
If the SH-AWD indicator on the
instrument panel stays on, and the
‘‘ CHECK SH-AWD SYSTEM ’’
message also appears on the multi-
information display, there is a
problem with the SH-AWD system.
Your vehicle still has normal front-
wheel drive with vehicle stability
assist (VSA), but does not have the
advantages of SH-AWD. Have your
vehicle checked by a dealer as soon
as possible.
Super Handling-All Wheel Drive ™(SH-AWD
®) System
385
Driving
10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Crossing a Stream
Avoid driving through deep water. If
you encounter water in your route (a
small stream or large puddle, for
example), evaluate it carefully before
going ahead. Make sure it is shallow,
flowing slowly, and has firm ground
underneath. If you are not sure of the
depth or the ground, turn around and
find another route.
Driving through deep water can also
damage your vehicle. The water can
get into the transmission and
differential, diluting the lubricant and
causing an eventual failure. It can
also wash the grease out of the wheel
bearings.If You Get Stuck
Avoid driving on soft sand, deep
mud, or other surfaces where you
could get stuck. If you do happen to
get stuck because of inclement
weather or other conditions, choose
a safe and appropriate course of
action.
You should never use a jack to try
getting unstuck. A jack only works
on firm, level ground. Also, your
vehicle could easily slip off the jack
and hurt you or someone else.
If you spin the wheels excessively
trying to get unstuck, you may
overheat the components of the
SH-AWD system. The SH-AWD
indicator on the instrument panel will
blink to indicate the rear differential
temperature is too high.
You will also see an
‘‘SH-AWD DIFF
TEMP. HIGH ’’message on the multi-
information display (see page 385).
If this happens, stop and allow
everything to cool down. The
SH-AWD indicator goes off after the
rear differential temperature drops.
Off-Highway Driving Guidelines
407
Driving
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SymbolMaintenance Main Items
A
●Replace engine oil
ꭧ 1
B
●Replace engine oil
ꭧ1and oil filter
●Inspect front and rear brakes●Check parking brake adjustment●Inspect these items:●Tie rod ends, steering gear box, and boots●Suspension components●Driveshaft boots●Brake hoses and lines (including ABS/VSA)●All fluid levels and condition of fluids●Exhaust system
＃
●Fuel lines and connections
＃
ꭧ1: If the message ‘‘SERVICE ’’does not appear more than 12 months after
the display is reset, change the engine oil every year.
＃: See information on maintenance and emissions warranty on page 417.
NOTE:
●Independent of maintenance message in the Information Display,
replace the brake fluid every 3 years.●Inspect idle speed every 160,000 miles (256,000 km).●Adjust the valves during services A, B, 1, 2, or 3 if they are noisy. Symbol Maintenance Sub Items
1
●Rotate tires
2●Replace air cleaner element If you drive in dusty conditions, replace every 15,000
miles (24,000 km).●Replace dust and pollen filterIf you drive primarily in urban areas that have high
concentrations of soot in the air from industry and from
diesel-powered vehicles, replace every 15,000 miles
(24,000 km).●Inspect drive belt
3●Replace transmission and transfer
ꭧ 2fluid
Driving in mountainous areas at very low vehicle speeds
or trailer towing results in higher transmission and
transfer temperatures. This requires transmission and
transfer fluid changes more frequently than
recommended by the Maintenance Minder. If you
regularly drive your vehicle under these conditions, have
the transmission and transfer fluid changed at 60,000
miles (100,000 km), then every 30,000 miles (48,000 km).
4
●Replace spark plugs●Inspect valve clearance
5●Replace engine coolant
6●Replace rear differential fluid
ꭧ 2
Driving in mountainous areas at very low vehicle speeds
or trailer towing results in higher level of mechanical
(shear) stress to fluid. This requires differential fluid
changes more frequently than recommended by the
Maintenance Minder. If you regularly drive your vehicle
under these conditions, have the differential fluid
changed at 7,500 miles (12,000 km), then every 15,000
miles (24,000 km).
ꭧ2: SH-AWD only
Maintenance Minder™
Maintenance Minder
41810/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

DimensionsLength182.5 in (4,635 mm)
Width 73.6 in (1,870 mm)
Height 65.2 in (1,655 mm)
Wheelbase 104.3 in (2,650 mm)
Track Front 61.9 in (1,572 mm)
Rear 62.6 in (1,590 mm)WeightsGross vehicle weight rating See the certification label attached to
the driver's doorjamb.EngineType Water cooled 4-stroke DOHC i-VTEC
4 cylinder gasoline engine with turbo charger, intercooler
Bore x Stroke 3.39 x 3.90 in (86.0 x 99.0 mm)
Displacement 140.3 cu-in (2,300 cm
3)
Compression ratio 8.8
Spark plugs SILKR8A-S (NGK)
Seating CapacitiesTotal 5
Front 2
Rear 3
CapacitiesFuel tankApprox.
18.0 US gal (68 L)
Engine oil Change
ꭧ 1
Including
filter 5.0 US qt (4.7 L)
Without filter 4.8 US qt (4.5 L)
Total 6.1 US qt (5.8 L)
Engine coolant Change
ꭧ 2
1.85 US gal (7.0 L)
Total 2.22 US gal (8.4 L)
Automatic
transmission fluid Change
2WD 3.0 US qt (2.8 L)
4WD 3.1 US qt (2.9 L)
Total 2WD 8.8 US qt (8.3 L)
4WD 8.2 US qt (7.8 L)
Rear differential
fluid (4WD) Change
2.67 US qt (2.53 L)
Total 2.93 US qt (2.77 L)
Transfer assembly
fluid (4WD) Change
0.45 US qt (0.43 L)
Total 0.48 US qt (0.45 L)
Windshield
washer reservoir U.S. Vehicles 2.6 US qt (2.5 L)
Canada
Vehicles 4.8 US qt (4.5 L)
ꭧ1: Excluding the oil remaining in the engine
ꭧ2: Including the coolant in the reserve tank and that remaining in the engine Reserve tank capacity:
0.18 US gal (0.7 L)
Specifications48010/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu

Gasoline:
Premium unleaded gasoline, pump
octane number of 91 or higher.Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the catalytic converter.
Fuel Tank Capacity:18.0 US gal (68 L)
Required Engine Oil;
Always use Mobil 1
®5W-30 or an
equivalent oil that meets the
Acura HTO-06 standard.
Oil change capacity (including
filter):
5.0 US qt (4.7 L) Automatic Transmission Fluid:
Acura ATF-Z1
(automatic transmission fluid)
(see page 427).
On models with SH-AWDRear Differential Fluid:
Use Acura ATF-Z1
(automatic transmission fluid)
only.
Capacity:
SH-AWD differential case
2.67 US qt (2.53 L)On models with SH-AWDTransfer Assembly Fluid:
SAE 90 or SAE 80W-90 viscosity
hypoid gear oil, API service
classified GL4 or GL5 only. Power Steering Fluid:
Acura Power Steering Fluid
preferred, or another brand of
power steering fluid as a
temporary replacement. Do not
use ATF (see page 430).
Brake Fluid:
Honda Heavy Duty Brake Fluid
DOT 3 preferred, or a DOT 3 or
DOT 4 brake fluid as a temporary
replacement (see page 429).
Tire Pressure (measured cold):
Front/Rear:
32 psi (220 kPa , 2.2 kgf/cm
2)
Spare Tire Pressure:
60 psi (420 kPa , 4.2 kgf/cm2)
Service Information Summary10/06/08 17:42:32 11 ACURA RDX MMC North America Owner's M 50 31STK640 enu