Question about 2001 Chevrolet Silverado 1500

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My 4wd lights are not working and the message center says to service 4wd what does that mean

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There is an electric motor that switches the transfercase from 2 to 4 wd. They are bad about sticking. Sometimes you can reset them by disconnecting the negative battery post for a few minutes. If that doesn't work carry it to the dealer. They will find the problem quicker than a regular shop.

Posted on Nov 08, 2010

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4 wheel will not work. the selector switch will show it is in but front tires will not engage No messages on control center


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I have a 2002 gmc Yukon.4wd.....the message center light keep flashing..showing a flashing battery red...i got a new battery and alt is good. its causing all lights to go Dem n cut off.


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No 4wd selection. no lights on dash for 4wd selection. "service 4wd" comes from message center


What you will need to do is get the codes from the transfer Case control module.(TCCM).This will help in finding the cause.Let me know what codes you find and I`ll be glad to help you further.Good luck.

Jan 30, 2011 | Chevrolet 1500 Cars & Trucks

1 Answer

GMC Yukon XL is stuck in auto 4wd. Service 4wd light is on message center.


First get the codes from the transfer case control module.This will help in diagnosing the problem.You can try pushing the 2hi and 4lo buttons simultaneously for 10 seconds.This should put the transfer case in neutral. Then try going to 2 hi.See if this will get it out of 4wd.Let me know what you find.If you need more help let me know Good luck.

Mar 02, 2010 | 2001 GMC Yukon XL

1 Answer

Computer message service 4wd switch


this is common in jeeps i researched the same thing for mine becuase mine flashes but most everyone says its pretty much a dummy light and alot of people have replaced the information center in there jeeps and still had the same problem so i just let it be it doesnt really bother me to much.

Oct 01, 2009 | 1993 Jeep Grand Cherokee

1 Answer

Lights for 4WD selector not on


I had this happen on my chev as well a couple of times, once it was the solenoid switch for the automatic transfer case. Another time the ground wire for the switch was corroded and shorting out. There is a new software updgrade available as well that might fix if this is a recurring issue.

Sep 07, 2009 | 2005 Chevrolet Silverado

1 Answer

The service 4wd switch light shows on the display sometimes


Check the information about VIC (Vehicle Information Center)in here: ZJ-Secc-8E-Instrument-Cluster-and-Gauges (Section 8E Page 11 and next)

Maybe is an reminder about service or maintenace time.

Good luck!!!

Jun 02, 2009 | 1994 Jeep Grand Cherokee

1 Answer

Message center: "4WD SERVICE " LITe on.


sound like a relay problem under your hood is a fuse box with relays and fuses check them that should be your problem....

Aug 15, 2008 | 2001 GMC Yukon

1 Answer

Message center states service 4wd


not sure about the fuel gauge, but I am willing to bet you need a new 4wd switch. This is pretty common on these trucks.

The fuel thing might be a bad cluster. This is also a common problem on the gm vehicles. I have 2 silverados, an impala and a malibu and they all have had funky problems with the clusters.

Brew

Jun 13, 2008 | 2000 Chevrolet Silverado 1500

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