what do i try to fix when truck wont get out of 4wd on 2003 Chevrolet Silverado 2500 HD

truck will not come out of 4wd

Asked by for the 2003 Chevrolet Silverado 2500 HD
3 answers
You know there was a recall on this mine slammed into 4 wheel drive all by its self and when i took it to the dealer they told me there was a recall and they fixed it
start with scanning codes and posting so we can adv
possible actuator not retracting...