Sign up for FREE! Become a GM-Trucks.com Member Today!
In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience.
By David Ottenbacher
Hello, for the past two years my truck (2015 Sierra 1500 All Terrain) has been intermittently flashing service lights saying the to service ABS, to service stabillitrac, and to service parking sensors. This would happen a few times a month and would immediately go away and I would think that it was just an annoying bug. But since about a month ago, when making low speed left turns, as well as any size bump, caused it to happen. This worsens into ABS light and stabillitrac light on for one day. While this happened you could feel the ABS pumping at when braking normally. This too went away the next day. I took the truck to the dealer for a diagnostic and told them all of this as well. After the $190 diagnosis they said it was the following codes (attached photo)
C0035-04, C0040-04, and C0035-0F.
they told me both front hubs were bad and needed replacement. They wanted $1800 for parts and labor. I told them thank you and paid the diagnosis and took the truck home. After the dealer the trucks electronics and 10x worse. Now the ABS and Stabillitrac lights stay on permanently, the brake light dings and flashes with any turn of the steering wheel. Also getting constant service ABS, service trailer brakes, Service stabillitrac, and reduced steering assist. I bought both front hubs and wheel speed sensors. I installed them and torqued everything back to spec. After reconnecting the battery and taking a test drive nothing had changed. I took the top panel from the dash off and did the ground mods. Again, no change. I’m going crazy trying to find the problem. I the. Took the truck to autozone for a code read. It still says the same three codes and it did, even after replacing the parts and sensors the dealer said would work. If anyone knows what the cause is it would be much appreciated. Thanks in advance, Dave
Bought this vehicle brand new. I love it, and perfect for myself, my family, and the fact it's Diesel puts the cherry on top for me. But... now things have started. We have currently 1,137 miles on the vehicle and had the first message populated:
- Service steering column lock. (see photo)
Everything else worked, remote start, standard start, and the vehicle had zero issues. The following day from our road trip, we had to go to the DMV with our out-of-state paperwork to submit for plates. My wife now received a new message.
- Service emissions system. See owners manual. (see photo)
She drove to the DMV and left to get the smog paperwork. Then a new issue:
- Vehicle remote start isn't working. (see photo)
She is in the car and tries to start... Nothing. She tries again. It starts, and she drives it to a local dealer. They come to look and scheduled us for an appointment. She drives the vehicle now, and Onstar now shows the emission issue. ( see photo ) We now can't register the vehicle in California, because, the check engine light is on, emissions warning, and they won't smog it until it's corrected.
I noticed that none of these issues happened until it updated the software in the vehicle. I'm hoping this is something that can be fixed. I've been looking around for answers and only finding more issues that are all pretty shitty. Sorry, no better way to say it. I've also seen a post of people saying, “deal with it, it's a new breed of vehicles,” etc. I’d challenge that answer. No one should pay this much for a vehicle and face these issues I'm reading about.
So here's what I'm going to do, document everything, and I mean everything. This will be for everyone who may have this issue now or who may come across it.
My opinion...but I'm not a mechanic, is that there is a massive software and hardware issue with these models. I believe GM internally has to know about this from Dealers, Customer Service, Compliance Reports, etc. I'm sure all issues are in the queue to be address or fixed. I do, however, feel with the challenges of physical hardware that they chose a vendor that was most cost-effective, which is a component of these issues a long with the capability to support the software complexity of the current models.
Or maybe I'm just wearing a tin hat, who knows.
So, I open this up to you. Any advice, similar issues, outcomes you've faced, and other topics, please comment below.
May the journey of dealership visits begin. Hopefully, this journey isn't to long.
By Seth Trebatoski
New to this site, just bought a new 2021 Silverado LT Trail Boss a few weeks ago. One of the first things I am doing to this truck is upgrading the few halogen bulbs that GM decided to keep on it. The Rear backup and license plate lights all went super smooth, no issue. But when I went to remove the front blinker bulb from the housing I was faced with a different configuration than what I've seen. The place where you would normally find the circular grip for twisting out the bulb has a small hex head there in place, and it does not look to actually come apart (Please see attached picture). I think that I might have a different blinker than what normally comes with this trim (and I think it may already be LED) but I am unable to find anything online that resembles or mentions this configuration. I am only able to find the typical bulb backing which does not match mine.
Does anyone have insight to this or possibly know what kind of blinker I have? I have included a picture of the back of the blinker as well as the light housing itself as I think it too looks slightly different than others I have seen.
Thanks in advance!
Recently Browsing 0 members
No registered users viewing this page.
Who's Online 48 Members, 0 Anonymous, 3,183 Guests (See full list)
- Tim Mahoney
- Luke Ouellet
- Anthony Ruisinger
- Mike Organ
- Brody Rens
- Nicholas Golde
- Paul Forrest
- Pete Whitten
- Jerry fronk
- Joshua Morales
- Erin Bond
- RAYS B4U
- Jeff Jorgenson
- Joe Loughlin