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problem with autotrack

toyotatech

By toyotatech
in Ask A GM Technician

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toyotatech Enthusiast

toyotatech

Posted
Posted

I have a 2003 1500HD with autotrack. I will be driving down the road and I will look down and see that the red light for neutral will be on in the autotrack switches. Everything seems fine with the truck while driving. It's just that the red neutral light is on instead of the yellow 2WD light. If you cycle the ignition key, The 2WD light will be on and it doesn't happen again for about a week.

 

Thank You, John.

GM-Tech Senior Enthusiast

GM-Tech

Posted
Posted

*usually* this is a problem with the encoder motor sensor, but there are a dozen or more TSB's on various 4wd problems, and it could be any number of things. It'd be really helpful to know what, if any, codes exist in the system.

 

Do you ever get a "Service 4wd" message on the DIC?

toyotatech Enthusiast

toyotatech

Posted
  • Author
Posted

I never get the "Service 4wd" message. Just the red neutral light on the switch. The last time it happened it was raining out. The light seemed to stay on longer. I had to cycle the key a few more times. Is there any way to get 4wd codes without a chevy scan tool?

mauro9181 New Member

mauro9181

Posted
Posted

I've had the same problem with mine for the past 10k miles. I got a "service 4wd" light to come on, they replaced an actuator. About 2k later, everytime i started my truck, the switch in the dash would be in a different position (mostly "neutral" but also "auto" and one particular time it liked "4 low" a bunch of times). I've taken it to the dealer 4 or 5 times now. They've replaced the in-dash switch twice, the decoder on the transfer case twice, another piece that's just under the dash. I think pretty much they've replaced everything except the wires and transfer case. Each time i've taken it in and they've replaced something, about 2-3k miles later it starts up again.

 

This last time they kept it over night and replaced the decoder on the transfer case. They even said they took the new decoder out, put the old back in and tweaked it a little and NONE of the lights came on. They put the new decoder back in and gave the truck back to me. They told me straight up that they aren't 100% sure that they've rectified the problem yet, but there is no sense in them keeping the truck i might as well drive it until it acts up again.

 

That was about 500 miles ago...i'm afraid it might be acting up again because tonight i started my truck and it was in "auto" and i didn't put it there to start with. I'm waiting for it to repeat itself more or give me the "service 4wd" message.

 

I've written to GM Customer Service about this...along with another problem i had with my speedometer...i keep calling my "specialist" to see how things are going, but he hasn't returned my call in probably a month now. I'll keep trying...

 

My only advice would be to keep chugging along. I love my vehicle and don't want to claim 'lemon' but i'm afraid i might have one. :troll:

 

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