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Discussion Starter #1
Had my tires rotated and balanced this weekend. Since then my park sensors do not pick anything up.

I thought they were just dirty so I cleaned them off. Seemed to work immediately after that. I even put the parking brake on, put it in reverse and walked behind it and they were all active.

Now again this morning, no familiar beeping as I back out of the garage, or as I back over the parking block.

Is there a calibration for the park sense?
 

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They arn't just turned off with the button on the dash are they?
 

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I bet they jiggled the connector loose when servicing your spare tire? Let us know if that was the problem. john
 

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Discussion Starter #7
I cleaned off the park sensors, they weren't very dirty at all, and they seem to have come back to life. I looked underneath and nothing seemed to be amiss with the wiring, I'm sure they didn't touch the spare.

I'm writing it off as an anomaly unless it starts again.
 

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Park Assist no beeps until RED...

My park assist doesn't beep until I get Red lights. The owner's manual says it should beep at yellow and beep again at red and then steady beep at 2 reds.

Anyone else ever have that issue? What resolution?

Dealer says it was normal and I said "Can't be". So I'll be taking it back for that issue, but I want some facts first...

Your assistance greatly appreciated..
 

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artmanr said:
My park assist doesn't beep until I get Red lights. The owner's manual says it should beep at yellow and beep again at red and then steady beep at 2 reds.

Anyone else ever have that issue? What resolution?

Dealer says it was normal and I said "Can't be". So I'll be taking it back for that issue, but I want some facts first...

Your assistance greatly appreciated..
Best thing to do is show the dealer what it says in the manual.
 

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Dealer says one thing Manual Says Another

jeep5253 said:
Best thing to do is show the dealer what it says in the manual.
OK....I need to take a poll. Everyone test their Park Assist and let me know when you hear the first BEEP.

List your year and the light color and number (for me it's 2006: first Red).

I SWEAR the manual says the beep should be heard on the first Yellow Light, but the dealer says NOPE. Says they changed it and I have a new "module".

Sounds funny to me....but not funny...

Your help appreciated...

AR
 

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artmanr said:
OK....I need to take a poll. Everyone test their Park Assist and let me know when you hear the first BEEP.

List your year and the light color and number (for me it's 2006: first Red).
I also have an 06 and mine also beeps at the first red
 

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From the Owner's Manual:

REAR PARK ASSIST SYSTEM— IF EQUIPPED
The Rear Park Assist System provides visual and audible
indications of the distance between the rear fascia and the
detected obstacle when backing up. Refer to the Warning
Section and Note Section for limitations of this system
and recommendations.
The Rear Park Assist System will remember the last
system state (enabled or disabled) from the last ignition
cycle when the ignition is changed to the RUN/ON
position.
The Rear Park Assist System can be active only when the
shifter is in R (Reverse). If the Rear Park Assist System is
enabled at this shifter position, the system will be active
until the vehicle speed is increased to approximately 11
mph (18 km/h) or above. The system will be active again
if the vehicle speed is decreased to speeds less than
approximately 10 mph (16 km/h).

Rear Park Assist Sensors
The four Rear Park Assist Sensors, located in the rear
fascia, monitor the area behind the vehicle that is within
the sensors’ field of view. The monitored area seems oval
in shape.
The sensors can detect obstacles from approximately 11.8
inches (30 cm) up to 59 inches (150 cm) from the rear
fascia in the horizontal direction, depending on the
location and orientation of the obstacle and the type of
obstacle.

Rear Park Assist Warning Display
The Rear Park Assist Warning Display, located in the
headliner near the flipper glass, provides both visual and
audible warnings to indicate the distance between the
rear fascia and the detected obstacle.

When the ignition is changed to the RUN/ON position,
the warning display will turn ON all of its LEDs for
about 1 second. Each side of the warning display has 6
yellow and 2 red LEDs. The vehicle is close to the obstacle
when the red LED is ON.

When the obstacle is detected at a distance of about 59
inches (150 cm) from the rear fascia, the outermost LEDs
of the warning display will be ON with increased brightness.
Along with the LED, a half second tone will occur.
As the distance of the detected obstacle to the rear fascia
decreases, more LEDs are illuminated. When the warning
display has the first 5 yellow LEDs ON, the warning
display will actuate an intermittent tone for about 10
seconds. The radio will be muted while the tone is
actuated. The intermittent tone will increase in frequency
as each additional LED is lit.

When the detected obstacle is about 11.8 inches (30 cm)
from the rear fascia, the warning display will actuate a
continuous tone for about 10 seconds, and it will turn ON
all 8 LEDs, including both RED LEDs, on the corresponding
side of the display. The radio will be muted while the
tone is actuated.
When the obstacle is less than 11.8 inches (30 cm) from
the rear fascia, the warning display will either have all 8
LEDs ON (obstacle detected) or it will have only the
outermost LEDs ON with decreased brightness (obstacle
not detected), depending on the location of the obstacle.
 

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jeep5253 said:
From the Owner's Manual:

When the obstacle is detected at a distance of about 59
inches (150 cm) from the rear fascia, the outermost LEDs
of the warning display will be ON with increased brightness.
Along with the LED, a half second tone will occur.
As the distance of the detected obstacle to the rear fascia
decreases, more LEDs are illuminated. When the warning
display has the first 5 yellow LEDs ON, the warning
display will actuate an intermittent tone for about 10
seconds. The radio will be muted while the tone is
actuated. The intermittent tone will increase in frequency
as each additional LED is lit.
It may say this but obviously from those who have posted this is not acurate.
 

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a49erFan said:
It may say this but obviously from those who have posted this is not acurate.
Just putting it here for those that don't read their manuals or don't have one.
 

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My 2006 also works as the manual states... beep on yellow, faster beep with 4 yellows, and really fast with red. Almost solid tone just before you hit something. Yes, I made that mistake of not trusting the sensor (laugh).

;)
 

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My '08 is as manual states - first a brief "dummy look at me" tone when the first yellow lights up, then when I'm close and it goes to the first red, it starts getting more demanding in frequency and then when it all lit up it is constant on...as in "OK, dummy now is the time to stop..."
 
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