I have a 04 f250 6.0, I have noticed my reverse aid sensors is not working right when it is cold out. It will beep solid like something is right behind me but there is nothing there. When it warms up outside it is fine. Have any of you guys had this problem?
Thanks!
Travis.

 

Mine does it periodically too. It usually only does it in high humidity or rain, or after you wash it when its cold. Moisture condensates and/or freezes between the emitter and the little plastic cover, and interrupts the signal. Not too much you can do about it, as far as im aware, its sort of a nuisance, but oh well. I suppose its a small cost; the backup sensors are great IMO.

 

I also heard that if you're backing up w/ the tailgate down, it'll set it off..

I hope you get it figured out..

Russ

 

Mine have been "fogged" coming out of a warm garage into the cold. This set them off. And yes, if the tailgate is down they go off. Even with that I think they are great. I know when the tone goes steady its time to stop or crush a ricer.

 

Mine do it when temps below 5 degrees.

 

Mine does it after it rains.

 

I bet someone could really drive you guys nuts by putting a small piece of black electrical tape over a sensor

Nah, that's too plain mean...

Have a great day..

Russ

 

Cases where the RSS/FSS give warnings but nothing is within range of the vehicle sensors, or give warnings for three (3) seconds then ceases, the occurrence may be due to any of the following reasons.

BLOCKED/CONTAMINATED PROXIMITY SENSOR SURFACE:
Proximity sensor surfaces may be covered with snow, ice, dirt or mud. There is a gap between the sensor membrane and its plastic housing that must remain clear (Figure 1). If this space is contaminated with any foreign material the system may sound a continuous tone or intermittent tone. The sensor surface can be cleaned by a high pressure water spray.

SIDE COVERAGE SENSOR:
There is side/rear coverage that extends approximately 46 cm (18 inches) perpendicular from the side rear fascia. Side coverage is a desirable feature in a parking situation where the vehicle is involved in a very tight turn with little rearward movement, or where the vehicle is backing parallel to a large, extending obstacle such as a garage wall. If there is no encroachment between any of the outer sensors and an obstacle, then the warning will sound for three (3) seconds and cease. If vehicle or the obstacle begin to move closer to each other, then the warning will begin again. Obstacles within 25 cm (10 inches) of the fascia will always be reported with a continuous tone. This is considered normal operation.

ABNORMAL ROAD SURFACES:
The RSS/FSS may give warnings due to certain road surfaces with surface projections such as rocks, broken pavement, unplowed snow covered roads. This is considered normal operation.

OTHER POSSIBLE CAUSES:
Very wet weather conditions, such as mist, frost or snow may provoke occasional warnings. The system may detect liftgate while open and certain trailer hitches and/or bicycle racks. External ultrasonic noise may be detected (high velocity air, machinery). This is considered normal operation.



Clean proximity sensors with a dry shop towel, and if required wash with water or a high pressure water wash if necessary to ensure that the membrane gap is free of any dirt or contamination

 

That's some great info.. I didn't even consider the hitch being a possible cause..

Thanks

Russ

 

Was wondering if there was a way to adjust the sensors.Like upor down?

 

You think Ford should place some sensors up front to warn us just before running over a lowered Honda or such???? LOL

 

Sensors who needs a Sensors went you got a backup camera, No noise

 

I can tell my wife to be quiet when i back up lol.

 

Mine don't come on until I'm less that 4' away. How far from an object is the norm?

 

hey satcom40 where did you get the backup camera?