I own a 93 Grand Cherokee and the message center will occasionally display "Service 4WD Switch." This message is usually preceeded by 3 beeps, which I don't think is of any consquence other than an alert. The previous owners said they took it to a Jeep dealer and they had no idea what the problem was.

Before I take it in to have it looked at I like to have some idea of what the problem might be so I at least look like I have a clue.

Thanks for any help.

most of the time when the SERVICE 4WD Light message come on it is because the Transfer Case is low on fluid (ATF)