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Found 6 results

  1. Hey guys, I have a 2010 GMC Sierra SLE Crew Cab. I am having an odd issue with the rear parking assist throwing three different variations of codes on my dash. 1. Service Park Assist (Most Common) 2. Park Assist Blocked (Never blocked, iced over, or trailer hitch installed) 3. Park Assis off My issues is that when I put it in reverse with the ebrake on I can go back and listen to the sensors and all of them work but one. Upon further inspection I swapped two sensors locations (i.e. removed two sensors and swapped sensor locations) the once seemed faulty sensor worked and the other working sensor stopped working. This discover lead me to believe that I had a bad wiring harness. So I bought a new harness from Amazon and slapped it in and the same thing is happening. My next question is could it be the park assist module? I took the seat out and inspected the module connectors and wires and they look nearly brand new besides a thin layer of dust on the outside. I believe that all evidence points to the module, but I wanted to get some other opinions before I chucked any more money at it. Appreciate any and all advice you have to offer.
  2. I have a 2011 GMC Sierra Denali with a park assist problem I’m hoping someone can help me solve. A couple months ago, I started getting a sporadic “park assist blocked” error. This is pretty common as the sensors are covered in snow in the winter. However, I then noticed the sensors began to work sporadically even if they were clear. A month or so after that, the message changed to “service park assist” and the system automatically disables itself. The button on the dash shows the system is off all the time and when I try to turn it back on, the orange light flashes for two seconds but then disables itself again. I’ve checked the fuse and unplugged the battery but have not been able to get it to reset. Does this seem like a sensor issue or a control module? Any ideas for next steps? Unfortunately since the system is disabled all the time I can’t check to see if one sensor is malfunctioning as I’ve read about on other forums. Update: when I started my truck once this week it randomly worked for 10 seconds then disabled itself again and hasn’t worked since.
  3. I have a 2011 Sierra SLT 1500 Extended Cab, I have rear parking sensors and back up camera which displays in my rear view mirror. I was in an accident and a lot of my front end is being replaced, (bumper, grill, etc). Since I already have rear parking sensors I was curious to know how difficult and expensive it would be, if it’s even practical, to install parking sensors on the front as well. Any input would be great! Thanks!
  4. So onstar light comes on and “cal” where compass used to be is there now.. front center and right park assist now flashes and seat buzzes every time I slow to a crawl... onstar call says gps is gone... move had GMC 3/4 diesels, 3/4 HD, 1/2s... always Denali... this truck is a horrible build... 2017 1500 Denali... control arm banging (of course off warranty)... seat left side caved in (no I’m not obese), fan buzz (off warranty), “Chrome” on plastic all pitting, coating on wheels all falling off, so so many issues I never had on last 5 GMC trucks.... now get to go pay to have GPS and park assist fixed.... thinking it may be Toyota time after 5 fully loaded Denali’s....
  5. I’m trying to install new front end parking sensors to my 2016 GMC Sierra like @pgamboa on his YouTube video. Only not sure what todo with the front bumper, I’m trying to save money and not have to buy a new one with the sensor holes since mine current one is in excellent condition. Does anybody know how can I get the layout for the holes for exact placement and size? I figured I can drill them out myself but I’ve already looked everywhere online and can’t find anything on this. My last option would be go find a truck and physically measure them out, can anyone help?
  6. Hey everyone, I don't normally post much mechanical because I'm not. But thought this might help someone since I couldn't find much about it when I searched. My garage door came down and clipped my bumper slightly and apparently popped the right rear sensor out of the round "plastic bezel" that holds it in the bumper. Of course when I backed up the first time after this, my right rear signaled a obstruction -- I thought "what the heck?". I found the sensor still in the bumper, still connected to the wire. IGNORE THIS PARAGRAPH TO SAVE TIME IF YOU'D LIKE AS I PUT SOME WHINY LANGUAGE IN IT ABOUT 2015 CHEVY SILVERADO'S ENGINEERING, QUALITY, AND OUT OF WARRANTY COSTS THAT HAS ME A BIT PERTURBED -- But much to my surprise, it wasn't just a matter of putting it back in the "bezel" (which would take like 30 seconds) because you can't fit your hand into the bumper to do that. "No problem I thought"--I'll simply remove the plastic step on the bumper on that side to get access (probably a 5-10 minute delay) -- I figured it was the reason the chevy engineers didn't provide access from under the bumper. But "noooooo", that plastic step doesn't come off unless you take off the bumper apparently -- Really? Probably the same design team that designed the condenser that develops a hole ($1000+ repair if out of warranty) or the guys that painted my 2015 truck at the factory that is now peeling -- but I digress! Back to the sensor, since I couldn't get access -- I put a small piece of Velcro on the back of the sensor (you can grab the wired sensor with a finger and pull it out of the hole in the front of the rear bumper). I then put the mating Velcro on the end of a skinny tool (8" socket wrench extension). Then I mated up the two and poked the sensor back into the bracket and pulled the tool out/off the sensor. Worked like a champ! Somebody is going to wonder why there's a piece of Velcro on the back of that sensor someday -- but a Chevy engineer will understand (oops there a go again). Incidentally, it looks like the middle sensors are completely accessible. I know this "sensor dislodging" may be rare but I assume that some sensors do go bad and this technique would work to replace a sensor. Come on GM, engineer the truck for ease of repair!
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