No four wheel dash light. on 1999 Chevrolet Blazer

No lights on four wheel drive dash. No lights for two-wheel, auto 4WD, 4lo, 4hi.

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3 answers
Find someone with a tech2 scan tool, and scan the transfer case module for your problem. Semper Fi!
Is it engaging properly? If so, may just be the bulb is burnt out. Otherwise, refer to answer#1.
agree with both answers