Multiple Error Codes - 2017 Silverado 1500 WT

[Zachary Best]

Really at a crossroads trying to find the problem I am facing with my 2017 Silverado 1500 WT, with 85K miles. This all started after 4th of July, went to a touchless carwash. I was throwing 3 separate codes. Also, as of today when I shift into R or D the transmission clunks and the D flashes on the dash, the truck seems to be in a limp home mode. I have replaced the battery with the hope that was causing all the weird electrical issues, but that worked for one drive, then all the lights came back along with 2 additional codes & limp home mode. 

 

The codes I am plagued with are as follows:

• p10e4
• p0700 
• p129d
• p2534
• p2535

 

I have crawled around the engine bay and the underside with no obvious signs of damage to the wiring harness. Only thing I can think of is a ground issue, but have not seen other people with this same problem. 

 

Any help would be greatly appreciated!

[rlcole321]

Heres a web site that can help you.

Powertrain OBD2-OBDII Codes List Definition, Description and Repair Information | Page 1 | Engine-Codes.com

Load the code in the top right corner, and click on the ones for "Chevy"

[anthonymason59223051]

that thread has a pdf in a reply about a TSB for the p10e4 and p2535 that sets due to water intrusion into headlight housings and/or the connectors to them. i also just had the p10e4, p2535, and p0700 set yesterday. the 2 codes listed will not trip the MIL but will will store the code. the p0700 seems to be a separate issue that i have yet to diagnose on my truck being a generic code that basically says "something is wrong"

 

after doing some quick research, it looks like all of the codes you are experiencing besides the p0700 all have me thinking to have you look into your headlightsand/ or connectors for a start

Edited July 13, 2023 by anthonymason59223051
more information

[anthonymason59223051]

update to the issues i had on mine, the headlight housing had a cracked housing on the top going from the adjuster around the front and back around the upper mount along with a hole just over the HID ballast, with standing water in the bottom of the headlight. i pulled the headlight out, drained it, scuffed and epoxied the crack back into place with some JB plastic weld. got the pieces to puzzle-piece the hole and epoxied it as well. drilled a couple drain holes in case the epoxy doesnt hold. a $25 repair for now until i can get the funds for a new set of OE housings at a price of $1,200 up to $1,600 (each). the p0700 my truck threw was for the DRL. i would highly suggest taking the assembly out and inspect for cracks or moisture.

[retired tech]

i had almost the same prob. check for water in the headlight assy. you cant see the water you have to remove the headlight assy and take out the bulb socket when i pulled mine there was at least 1/2  gallon of water put a new headlight assy in and no more codes i just had a small hole in the lens hope this helps