Trucks & Trailers - Chevy Parking Assist / Disable

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View Full Version : Chevy Parking Assist / Disable


demjjm
05-13-2011, 07:28 PM
Ok, I recently bought a 2011 Chevy truck, and the Rear Parking Assist has me confused. It is the simple bumper mounted sensors with the button in the truck to disable it. Here is the thing; when I press the "disable" button, the button lights up, and the dashboard confirms that the "parking assist is disabled". However when I back up to and then tow the trailer, I get a "parking assist sensor blocked / see owners manual" error message. I can the press the "check mark" button on the left side of the dash to acknowledge to error, but why in the heck do they have the "disable" button if it doesn't seem to do anything, other than mute the warning beeps?

Does anyone else have this system, and is this how yours operates?? ;? Am I missing something? ;?


ReelWork
05-13-2011, 07:51 PM
My wife's Armada has this - push the button to turn it off and it lights up (dim), push it again and enable. Can't say much more than that.

me00351
05-14-2011, 03:09 AM
I have the same system on my 2011 GMC Denali and it does the same thing.
The most surprising aspect of the "parking assist" is that it won't work if I leave the hitch ballmount in the receiver. Odd, because most trucks have the ballmount attached 100% of the time. My previous GM vehicle was a 2007 Tahoe and its parking assist worked fine even with the ballmount . I think that the engineers need to rework this system.


demjjm
05-14-2011, 06:17 AM
Atleast I know I am not crazy, however what is the disable button for?

ReelWork, after disabling the system, it still gives the error message.

rwidman
05-14-2011, 06:26 AM
Ok, I recently bought a 2011 Chevy truck, and the Rear Parking Assist has me confused. It is the simple bumper mounted sensors with the button in the truck to disable it. Here is the thing; when I press the "disable" button, the button lights up, and the dashboard confirms that the "parking assist is disabled". However when I back up to and then tow the trailer, I get a "parking assist sensor blocked / see owners manual" error message. I can the press the "check mark" button on the left side of the dash to acknowledge to error, but why in the heck do they have the "disable" button if it doesn't seem to do anything, other than mute the warning beeps?

Does anyone else have this system, and is this how yours operates?? ;? Am I missing something? ;?

Assuming that you bought this new from a dealer, why not visit the dealership and ask them about it? If nobody knows, they should be able to find out for you.

LMychajluk
05-14-2011, 06:41 AM
I have an '07 Chevy. On mine (as long as I leave the reciever in the hitch) it stays disabled, which is fine. The problem here is that every time I start the truck I need to hit the check button to clear the warning that it's disabled off the dash.

boattrip
05-14-2011, 04:00 PM
I've got a 2010 tahoe. No problems at all if just the hitch is in. When I hook to a trailer or put in a hitch cargo carrier, I get the message it's blocked. I clear it off and go about my way. After you unhook the trailer or take the hitch carrier out, it resets itself and goes back to working properly after a few minutes.

thebigcomfy
05-15-2011, 06:14 PM
ive got an 09. does the same thing. before i had the lift and drop down hitch the park assist would not work with the hitch in, now that its lower i guess its out of the way. weird design, nothings wrong

vertigo
05-15-2011, 06:18 PM
I have an '07 Chevy. On mine (as long as I leave the reciever in the hitch) it stays disabled, which is fine. The problem here is that every time I start the truck I need to hit the check button to clear the warning that it's disabled off the dash.
08 Sierra and mine is the same way.
Just push the check to acknowledge the error and all is good.

MakoMyDay
05-17-2011, 07:53 AM
It senses a trailer there and turns itself off. You can also manually turn it off with the button. If it "sees" your hitch while not towing, get a lower hitch with more drop and it will no longer see it

demjjm
05-17-2011, 12:49 PM
I understand how the system works, and how to clear the error message. The part that everyone is missing is "what is the disable button for?"

If I am in the driveway and hit the disable button, then I hook up the trailer, I still get the blocked error message and need to clear it. What does the disable button do? Why even have it?

from my first post .....

when I press the "disable" button, the button lights up, and the dashboard confirms that the "parking assist is disabled". However when I back up to and then tow the trailer, I get a "parking assist sensor blocked / see owners manual" error message. I can the press the "check mark" button on the left side of the dash to acknowledge to error, but why in the heck do they have the "disable" button if it doesn't seem to do anything, other than mute the warning beeps?

MakoMyDay
05-17-2011, 02:55 PM
r, but why in the heck do they have the "disable" button if it doesn't seem to do anything, other than mute the warning beeps?


You're answering your own question. That's the whole point of the button--to turn off the beeps.

me00351
05-18-2011, 03:58 AM
I agree that it isn't well thought out. I'd like to be able to select my own default settings for things like this. I want to leave my ballmount attached all the time and have accepted that my backup sensors won't work. Lowering the ball height makes it work but then my trailer is not level. A level trailer is much more important to me than the backup sensors.
Pushing the "P" button to deactivate it should do the trick but I imagine that GM's attorneys told the engineers to remind us with "parking assist sensor blocked / see owners manual"

ericinmich
05-19-2011, 09:43 AM
Are you aware that you have to push the button on every ignition cycle to turn the system off? It comes back on by default, and if it's on and sees the trailer while going forward, the error message comes up because it thinks the system is broken.

demjjm
05-19-2011, 01:43 PM
Are you aware that you have to push the button on every ignition cycle to turn the system off? It comes back on by default, and if it's on and sees the trailer while going forward, the error message comes up because it thinks the system is broken.

I wish it was just based on ignition cycles. The 2011 GM system apparently is not. Also the service department was not aware how it worked until I showed them. Again in the same ignition cycle this is what happens .....

when I press the "disable" button, the button lights up, and the dashboard confirms that the "parking assist is disabled". However when I back up to and then tow the trailer, I get a "parking assist sensor blocked / see owners manual" error message. I can the press the "check mark" button on the left side of the dash to acknowledge to error, but why in the heck do they have the "disable" button if it doesn't seem to do anything, other than mute the warning beeps?


As "Mako" stated I guess the only point is to shut off the warning beeps, but in actuality you still get a warning and beeps for the blocked sensor error, even with the system disabled.... so go figure.

rwidman
05-20-2011, 02:38 PM
I guess I'm behind the times. The "parking assist" on my truck is the mirrors. ;)

bayrunner16
05-20-2011, 02:53 PM
Can't you just pull the fuse out?

Bob's Garage
05-21-2011, 04:19 AM
:rofl:I guess I'm behind the times. The "parking assist" on my truck is the mirrors. ;):rofl:

westhunt@airspd.net
05-21-2011, 07:27 AM
Pushing the "P" button to deactivate it should do the trick but I imagine that GM's attorneys told the engineers to remind us with "parking assist sensor blocked / see owners manual"

I think you're right on about the attorneys -- My 08 GMC has the park assist. I can't leave the ball hitch in, or I get the beeping.
When you plug in your trailer lights, the system should automatically disable the "beeps", but it will give you the "disabled" message, which you will need to acknowledge.
It's a system that was designed by engineers, run through the attorneys, and then programmed by the computer jocks.
I decided to disable mine with the button a few months ago. I backed into a concrete post -- $5500 for a new bumper / quarter panel..... :banghead:
I leave my ball hitch off now, and tolerate the beeping.
:rofl::rofl:

salty bones
05-27-2011, 05:22 AM
I have a 2010 and it does the same thing and I hate it. The engineers at GM should be taken behind the wood shed and whipped with a leather strap. I'd like to just cut the thing off but I guess you cant.

Jr75
05-28-2011, 06:30 PM
I've went as far as crawling under the rear bumper and pulling the wires off the 4 sensors and pulling the fuse out. Then I got a "Service parking assist" messege everytime.

bladenbullet
05-28-2011, 07:41 PM
the attorney statement is corredt...i managed the service dept in a gmc dealer for several years and it was a common concern...problem is there are enough people who would love a lawsuit if they ran over their kid cause they were counting on a system to look for them that the company has to spend more time covering its ass-ets than making systems that make sense to regular people...

thats all there is too it...

and the drop of the ball can make a difference whether the system sees the hitch or not...if theres something back there its liable to spot it...

demjjm
05-31-2011, 06:25 AM
If I manually disable the function by pressing a button on the dash, where is liability on GM. Again my gripe is not that it goes off with a ball connected, the tailgate down, or when towing; I get all of that. My gripe is that when you disable the system, you still get the sensor blocked error message. Of course it is blocked, that is why I pressed the disabled button to begin with. I towed the jetski trailer with an Expedition, and once the system was disabled with the button, that was it, the system was shut down.

me00351
06-20-2011, 03:15 AM
I found this info at Diesel Place .
I haven't tried it yet but will do so soon.
Disabling Rear
Park Assist

On 2007-2011 Silverado and Sierra models, owners or
aftermarket upfitters that remove the rear bumper, install
a different rear bumper, add a different box/flat bed/cube
box/hitch or make other modifications to the rear of the
truck, may need to disable the Rear Park Assist option
(RPO UD7) from the vehicle.
Follow the instructions below for the model year of the
vehicle involved:
1. For all model years, disable the Rear Park Assist
module by removing the OBS DET fuse 20 (10
amp) from the left instrument panel fuse block
2a. For 2007-2009 models, contact Techline
Customer Support at 1-800-828-6860 to obtain an
Instrument Panel Cluster (IPC) calibration to
disable the Rear Park Assist option.
2b. For 2010-2011 models, remove power to the IPC
for several minutes by disconnecting the battery
and then reconnect. When power is restored, the
IPC will not see the Park Assist Module (disabled
in Step 1) on the low speed data buss. It will
reconfigure the IPC without Rear Park Assist.
After this process is complete, the Park Assist
Warning Messages will not be displayed.

me00351
06-23-2011, 05:09 AM
I just performed the procedure listed above and it worked perfectly.
I pulled the OBS DET fuse 20 (10amp) from the left instrument panel fuse block.

Instead of disconnecting the battery as instructed, I pulled the IPC fuse in the main fuse panel under the hood. It took me 5 minutes.

bayrunner16
06-24-2011, 06:48 AM
Can't you just pull the fuse out?


gotta love fuses.



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