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Puzzling 2008 Aspen Park Assist issue. Any ideas?

Old 12-01-2018, 01:41 PM
Junior Member
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Join Date: Mar 2013
Posts: 23
Default Puzzling 2008 Aspen Park Assist issue. Any ideas?

So I recently purchased an ‘08, and it displays the “Service Park Assist System” message in the overhead console.

I’ve replaced all four sensors, cleaned the harness connectors, checked as much of the wiring as I could get my eyes on and even swapped out two different PA modules and it still does not work.

At one point I did get a “Can’t communicate with park assist module” code after changing the module, which I cleared with my tuner. Made no difference. Disconnected the negative terminal many times between swapping out components. Same result.

I usually get the warning beep and four solid red lights in the rear bar whenever I put it into reverse. Sometimes nothing.

I know I’m probably going to be stuck going to the dealership, but does anyone have any ideas as to what else could be the issue here?

Old 12-02-2018, 10:48 AM
Senior Member
Join Date: Sep 2014
Location: Dallas, TX
Posts: 264

Many of the components on this truck require "Programming" in to the system. More than likely, it was something that went wrong with the program in the first place. I would of had the dealer diagnose the issue before even trying to replace components. May not be anything wrong with the sensors or the modules. Just a simple re-program.
Old 12-03-2018, 04:44 AM
Junior Member
Join Date: Oct 2018
Posts: 21
Default Sensors

Where did you get the sensors?
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