Service 4WD light comes on ..

[riobball]

I have a 1999 Chevrolet Blazer 4wd ZR2 Package (121,000 miles)

For the last few days the Service 4WD light comes on around 15 minutes into a drive. The light will go off on a restart and may or may not reappear for a day or so.


Any thoughts or suggestions? Any more info you need from me?

Thanks in advance for any help.

[BlazerLT]

please use the search feature, this has been discussed many times.