176 STARTING AND OPERATING
ParkSense Rear Park Assist Sensors
The four ParkSense sensors, located in the rear fascia/bumper,
monitor the area behind the vehicle that is within the sensors’
field of view. The sensors can detect obstacles, in the horizontal
direction, from approximately 12 inches (30 cm) up to 55 inches
(140 cm) from the center of the rear fascia/bumper and up to
24 inches (60 cm) from the corners of the rear fascia/bumper,
depending on the location, type and orientation of the obstacle.
ParkSense Rear Park Assist Sensors Locations If several obstacles are detected, the ParkSense system indi
-
cates the nearest obstacle.
The minimum height of a detectable obstacle corresponds to
the maximum height of an obstacle that would clear the
underside of the vehicle during the parking maneuver.
ParkSense Rear Park Assist Alerts
If an obstacle is behind the vehicle when REVERSE gear is
engaged, an audible alert is activated.
The tones emitted by the loudspeaker inform the driver that
the vehicle is approaching an obstacle. The pauses between
the tones are directly proportional to the distance from the
obstacle. Pulses emitted in quick succession indicate the
presence of a very close obstacle. A continuous tone indicates
that the obstacle is less than 12 inches (30 cm) away.
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STARTING AND OPERATING 185
Gross Combination Weight Rating (GCWR)
The GCWR is the total allowable weight of your vehicle and
trailer when weighed in combination.
Gross Trailer Weight (GTW)
The GTW is the weight of the trailer plus the weight of all
cargo, consumables and equipment (permanent or tempo-
rary) loaded in or on the trailer in its "loaded and ready for
operation" condition.
The recommended way to measure GTW is to put your fully
loaded trailer on a vehicle scale. The entire weight of the
trailer must be supported by the scale.
Gross Axle Weight Rating (GAWR)
The GAWR is the maximum capacity of the front and rear
axles. Distribute the load over the front and rear axles evenly.
Make sure that you do not exceed either front or rear GAWR.
Refer to “Vehicle Loading/Vehicle Certification Label” in
this chapter for further information. Tongue Weight (TW)
The tongue weight is the downward force exerted on the
hitch ball by the trailer. You must consider this as part of the
load on your vehicle.
Trailer Frontal Area
The frontal area is the maximum height multiplied by the
maximum width of the front of a trailer.
Trailer Sway Control
The Trailer Sway Control can be a mechanical telescoping
link that can be installed between the hitch receiver and the
trailer tongue that typically provides adjustable friction asso
-
ciated with the telescoping motion to dampen any unwanted
trailer swaying motions while traveling.WARNING!
It is important that you do not exceed the maximum front
or rear GAWR. A dangerous driving condition can result
if either rating is exceeded. You could lose control of the
vehicle and have a collision.
5
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268 SERVICING AND MAINTENANCE
Tire Sizing Chart EXAMPLE:
Example Size Designation: P215/65R15XL 95H, 215/65R15 96H, LT235/85R16C, T145/80D18 103M, 31x10.5 R15 LT
P = Passenger car tire size based on US design standards, or
"....blank...." = Passenger car tire based on European design standards, or
LT = Light truck tire based on US design standards, or
T or S = Temporary spare tire or
31 = Overall diameter in inches (in)
215, 235, 145 = Section width in millimeters (mm)
65, 85, 80 = Aspect ratio in percent (%)
• Ratio of section height to section width of tire, or
10.5 = Section width in inches (in)
R = Construction code
• "R" means radial construction, or
• "D" means diagonal or bias construction
15, 16, 18 = Rim diameter in inches (in)
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