on my 04 Silverado. What usually is the problem that causes this?
Thanks.
- posted
17 years ago
Service 4WD message
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- posted
17 years ago
On a/my 2000 Silverado LT Z-71 the Service 4WD message was
caused by cold solder joints in the dash 4 button 4x4 push button
switches.... Dealer fixed/ replaced switch problem under GMPP warranty.
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- posted
17 years ago
I was getting intermittent "Service 4WD" messages on my 03 Silverado LT Z71. I took it to the dealer today to have it looked at before my extended warranty was up and they found it showing code C0550 and that there was a TSB on this problem. The dealer reprogrammed the transfer case shift control module. I have not driven it much today, but seems fine so far, will let you know if problem reoccurs.
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- posted
16 years ago
Well, almost a month from the day (Apr 27, 2007) that the dealer reprogrammed the transfer case shift control module, my "Service 4WD" message came back on. I took it back to the dealer today and they retrieved code C0327 from computer and they replaced the encoder sensor per Service Bulletin #03-04-21-001D. Fortunately, they waived my $100 deductible on my extended warranty! Hopefully the problem is fixed now!!!