Jump to content

Service 4WD Light

aggietke00
 Share

Recommended Posts

David J. Miller New Member

David J. Miller

Posted
Posted
On 11/11/2019 at 5:30 PM, Trail Boss said:

Same issue... 2019 Custom Trail Boss... @1800 miles, towed to dealer as parking brake would not disengage (computer reprogrammed); 4100 miles, service 4wd and parking brake engaged, was able to get electronic brake to disengage (been at dealer for 2 weeks, replacing actuator and contacts).  Was given a loaner vehicle.  Hoping to get vehicle back soon and that this fix works!

 

11/16/19 -- vehicle still at dealer, waiting on "new connectors"!!!

Any luck? I'm sitting in a parking lot as we speak, with this issue... and I'm mad as hell. Haven't even made my first payment on the truck yet. 

  • Replies 139
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Popular Days

Popular Posts

Pinnacle
Pinnacle

Yes, we've had 3 trucks and done them all with no questions asked. Our dealerships always tries to go above and beyond. 

Mariah Forar
Mariah Forar

1/27/19 @ 5:35 am my truck threw this code.. "Service 4WD" after attempting to switch it from AUTO to 2HI. I was not moving, the truck was in neutral and I had just driven it the day before about 100

Colossus
Colossus

No.  They have their fair share of issues.  If you want a truck with fewer issues, go back about 10 years to the GMT-900s (without AFM) or even the GMT-800s.  Find a low millage and you'll have a GREA

Posted Images

David J. Miller New Member

David J. Miller

Posted
Posted (edited)
On 11/11/2019 at 5:30 PM, Trail Boss said:

Same issue... 2019 Custom Trail Boss... @1800 miles, towed to dealer as parking brake would not disengage (computer reprogrammed); 4100 miles, service 4wd and parking brake engaged, was able to get electronic brake to disengage (been at dealer for 2 weeks, replacing actuator and contacts).  Was given a loaner vehicle.  Hoping to get vehicle back soon and that this fix works!

 

11/16/19 -- vehicle still at dealer, waiting on "new connectors"!!!

Any luck? Literally sitting in a parking lot with this same problem. Haven't even made my first payment. 

Edited by David J. Miller
  • 2 weeks later...
Kingstruck New Member

Kingstruck

Posted
Posted

I have a 2019 GMC Sierra 1500, with all of the same issues, it started when the truck had approx. 1500 km it, now it has 39,000 km and the issue is ongoing with no resolution in sight. This truck has had 4 recalls on it and the transfer case was one of them, still happening almost every time I use 4 wheel drive. I feel your pain I live in Northern Alberta Canada and there is a reason I bought a truck with 4 wheel drive, because I want/need to use it.

Bob Ross Enthusiast

Bob Ross

Posted
Posted

Well this hit me today. Driving on a dirt road about 56*F dry conditions. Switched from auto to 2H just before I hit pavement again and got the service 4wd and the orange light for the indicator. Drove home about 5 miles parks and waited for about 5 mins. I restarted and it’s all still there. I take mine to the dealer tomorrow for warranty work on it. I hope it’s a fast fix but these posts don’t seem good. 

44E3E4C3-7AB1-4B4F-B67F-3259E4C2DF46.jpeg

19Sierra Enthusiast

19Sierra

Posted
Posted

I'm starting to wonder with the gm plants shutting down for now if the sensor for mine will ever come in. Lol

  • 2 weeks later...
Mhugg226 Enthusiast

Mhugg226

Posted
Posted

Hey Guys,

 

Had the same issue you guys have been reporting, but with a slightly different twist. When I start my truck it gave me the service 4wd message and the 4wd indicator on the dash went yellow. Parking brake engaged. Brought it to the dealer today and the code came back as Transfer Case Control Module C15A9 5A - Range Actuator Position Sensor and Transfer Case Range Position Sensor Not Plausible.

 

They "Fixed It" by reprogramming the TCCM.

 

Less than 12 hours later it reoccured.

 

Is there a fix, and if so what is it???

IMG_1483.jpg

19Sierra Enthusiast

19Sierra

Posted
Posted
20 hours ago, Mhugg226 said:

Hey Guys,

 

Had the same issue you guys have been reporting, but with a slightly different twist. When I start my truck it gave me the service 4wd message and the 4wd indicator on the dash went yellow. Parking brake engaged. Brought it to the dealer today and the code came back as Transfer Case Control Module C15A9 5A - Range Actuator Position Sensor and Transfer Case Range Position Sensor Not Plausible.

 

They "Fixed It" by reprogramming the TCCM.

 

Less than 12 hours later it reoccured.

 

Is there a fix, and if so what is it???

 

Mine is the same code. They tried the reprogramming but that didnt work for mine either. They said it's the sensor now but it's been on national backorder since beginning of February. 

Mhugg226 Enthusiast

Mhugg226

Posted
Posted
On 3/28/2020 at 6:24 PM, 19Sierra said:

Mine is the same code. They tried the reprogramming but that didnt work for mine either. They said it's the sensor now but it's been on national backorder since beginning of February. 

So i've contacted the dealer and they are have ordered the sensors and expect them in 3-5 days (highly doubt this will happen).

 

I've also reached out to GM customer care and im trying to work something out with them. I'm tired of all the headache of this truck. Are the 20's and better? does anyone have any tips for dealing with them?

19Sierra Enthusiast

19Sierra

Posted
Posted
5 hours ago, Mhugg226 said:

So i've contacted the dealer and they are have ordered the sensors and expect them in 3-5 days (highly doubt this will happen).

 

I've also reached out to GM customer care and im trying to work something out with them. I'm tired of all the headache of this truck. Are the 20's and better? does anyone have any tips for dealing with them?

Good luck, hopefully the sensors come in as that would mean they are no longer on national backorder. As for dealing with them just be persistent but stay polite, they are a pain in the a**. There go to seems to be just call it a software anomaly Lol.

Colossus Senior Enthusiast

Colossus

Posted
Posted
On 3/30/2020 at 12:32 PM, Mhugg226 said:

So i've contacted the dealer and they are have ordered the sensors and expect them in 3-5 days (highly doubt this will happen).

 

I've also reached out to GM customer care and im trying to work something out with them. I'm tired of all the headache of this truck. Are the 20's and better? does anyone have any tips for dealing with them?

No.  They have their fair share of issues.  If you want a truck with fewer issues, go back about 10 years to the GMT-900s (without AFM) or even the GMT-800s.  Find a low millage and you'll have a GREAT truck!  Or go get a Crapota Tundra :( Sucks to say that but they have the fewest issues out of Dodge, GM, Ford, and Nissan. 

  • Like 1
Mhugg226 Enthusiast

Mhugg226

Posted
Posted
On 3/30/2020 at 7:39 PM, 19Sierra said:

Good luck, hopefully the sensors come in as that would mean they are no longer on national backorder. As for dealing with them just be persistent but stay polite, they are a pain in the a**. There go to seems to be just call it a software anomaly Lol.

Sensors came in and they are currently installing them... hopefully thats the fix.....

19Sierra Enthusiast

19Sierra

Posted
Posted
23 minutes ago, Mhugg226 said:

Sensors came in and they are currently installing them... hopefully thats the fix.....

Good for you, sucks for me though mine are still supposedly on national backorder. Lol do you know which sensors they are? Maybe you are getting different sensors replaced.

Mhugg226 Enthusiast

Mhugg226

Posted
Posted

Truck is back and working for now.. they replaced the transfer case range position sensor... truck threw both C15A9 5A and C11AD 08 codes at them

19Sierra Enthusiast

19Sierra

Posted
Posted
4 hours ago, Mhugg226 said:

Truck is back and working for now.. they replaced the transfer case range position sensor... truck threw both C15A9 5A and C11AD 08 codes at them

Yup that's the sensor I've been waiting on. Lol 

Mhugg226 Enthusiast

Mhugg226

Posted
Posted
7 minutes ago, 19Sierra said:

Yup that's the sensor I've been waiting on. Lol 

I'm located in Canada, perhaps the Canadian PDC's had stock and the US is out of stock?

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing

  • Latest Articles

  • Posts

    • Gkistler
      2015 Sierra Denali L86 cyl 5 misfire at idle

      By Gkistler · Posted

      Hi friends - first time poster. I have a 2015 sierra Denali with 150k miles, I’m the second owner and she’s given me 75k of great service. I run a pulse AFM disable device. Starting Thursday when I exited the freeway after a short local ride it started idling rough, with an obvious misfire shake and was down on low end power.  I got it home and hooked it up to my scannner and found no codes but in live data a pretty bad misfire on cylinder 5. I replaced the coil, plug and wire with all new OE replacements (Delphi gn10165 coil, acdelco wire and 41-168 plug). It’s still behaving the same way after firing the parts cannon at it.   I know cyl 5 is a non AFM cylinder so I am not thinking this is AFM related but I’m kinda at a loss. injector? Bent pushrod? It’s running too well over 1k rpm to suggest those IMO. Has anyone chase this issue before and what was it? Any suggestions? 
    • zibzer2
      Pulsating Noise 4Cyl Mode

      By zibzer2 · Posted

      2017 Silverado L83 5.3l 6speed transmission Hello, not a new member but havent posted in a while and my old signup info isnt working so had to create a new account. anyways, I have an issue with my truck and hope someone can spread some light on whats happening: -when it goes to 4cyl mode it makes a clunk sound (but not when coasting or going downhill) -when in 4 cyl mode and under load it makes a load pulsating sound (not a tick). -goes away completely when in M5 gear or when plugging in an AFM delete. Im guessing it is one of 2 things but im not convinced of either to be honest. 1. lifter stuck in v8 mode 2. torque converter shudder realistically it doesn't seem like the TC as there is no physical vibration , and it never happens in v8 mode. but maybe? and wouldnt a lifter make a sound whether with load or not? any ideas let me know please. thank you!  
    • Chuck FB
      Some Assembly is Required

      By Chuck FB · Posted

      Which has made me wonder with the various engine failures of a few brands in the last few years, is it sub par materials such as lifters etc causing failures, or bearing clearances on the crank etc or perhaps bad designing of an engine physically or causing too much load on the components due to the hp/torque they can push out of them. Or is the oil viscosity and additive package of current oils or a lack of oil flow by an oil pump not able to supply sufficient oil at idle or under high load at low rpm. Or is it every item I listed that combined together has pushed the limits so far to the left that there is hardly a margin of safety left and add in some fuel dilution and too long of an OCI and premature engine failure is the result ?. 
    • Grumpy Bear
      Some Assembly is Required

      By Grumpy Bear · Posted

      He is not saying that an SAE *W20 will have more viscosity than a *W40 due to MORE VII polymers. He is saying that although multiple *W40 may post in the PDS the same or similar 100 C and 150 C viscosities that the blenders choice of modifier TYPE and AMOUNT to get his chosen base to grade will not give identical real world viscosities in shear and at temperature. All will pass the SII test but not all will pass the 100 C HTHS (unpublished value) testing the blender does and relies on to get the required by law "percentage improvement' referenced to his last great work.    Tis the problem with the lie. Once told others are required to support it. 
    • PunchT37
      Parking Brake - Automatic Engagement Questions

      By PunchT37 · Posted

      I have a `25, 1500 that auto sets on incline. Never knew that at first. I have the electronic shifter. Just think if it didn`t do that? Unlike a mechanical shift that you can muscle out of park, how would you get this thing out? That would be a problem.   What I found out later is, I don`t have to push the button to release. Just put it in gear.   Setting parameters? Don`t know if it`s possible.

  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...