Jeep 2010 Grand Cherokee Owner's Manual page 122

When the ignition is turned to the ON position, the
warning display will turn ON all of its LEDs for about
one second. Each side of the warning display has six
yellow and two red LEDs. The vehicle is close to the
obstacle when the red LED is ON.
WARNING DISPLAY DISTANCES
DISPLAY LED
1st LED
2nd LED
3rd LED
4th LED
5th LED
6th LED
7th LED
8th LED
OBSTACLE DISTANCE FROM:
REAR CORNERS REAR CENTER
59 in (150 cm)
51 in (130 cm)
45 in (115 cm)
31.5 in (80 cm) 39 in (100 cm)
25.5 in (65 cm) 33.5 in (85 cm)
20 in (50 cm)
16 in (40 cm)
6 in (15 cm)
UNDERSTANDING THE FEATURES OF YOUR VEHICLE 121
The system dimly illuminates the two outer most yellow
LEDs when it is ON and detecting no obstacles. The
following chart shows the warning display operation
when the system is detecting an obstacle:
LED COLOR
28 in (70 cm)
20 in (50 cm)
12 in (30 cm)
AUDIBLE SIGNAL
Yellow Yes, Half Second
Yellow None
Yellow None
Yellow None
Yellow None
Yellow None
Red Yes, Intermittent
Red Yes, Continuous
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