won't shift out of first gear on 1998 Cadillac Catera

Someone told me that a relay switch could be the cause of it not shifting out of first gear. Is that right? Could it be that simple?

Asked by for the 1998 Cadillac Catera
Hi, Were you able to determine what was causing the shifting problem? Was there a "relay switch" causing this? That doesn't sound right, but anything is possible, it sounds more like the transmission is having internal problems.
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