When this happens on my 1998 blazer, I disconnect the battery for a few hours and let the computer have to reboot then it works. 2wd to 4wd can be done with the vehicle moving less than 30 mph but to go into 4wd-lo i stop and put it into neutral then push the button and the same for coming out of 4wd-lo.
The tail light bulb is probably okay, it's the front signal light that is burned out, this would cause the rear light to blink rapid.
Blinking red light signifies alertness or danger.
Stop. Treat the blinking red light as a stop sign.
brake light on dash blinking
Need to know which light is blinking.
When you see a blinking yellow light, proceed with caution.
which light is blinking??need more info
Usually fast blinking means one of the light bulbs is burnt out or ready to go. Check that all your bulbs are working.
The LED light on your device may be blinking to indicate a notification, low battery, or an error. Check the device's manual for specific meanings of the blinking pattern.
The light on your device may be blinking to indicate that it is receiving or transmitting data, or to alert you to a notification or a low battery.
If your check engine light is blinking that means an ignition misfire has been detected
When the overdrive off light is blinking that means a malfunction has been detected