Okay. This code is set when there is a variance in speed from the transmission input and output shafts. It can be a simple sensor issue or a more complex internal problem. There are several recalls for Vue transmissions but I do not think yours falls under this problem. Yours sounds more like an internal belt issue which Saturn has a technical bulletin for as shown below. This usually requires replacement of the case cover and filter and sometimes the belt depending on the damage. Let me know if you need more help.
Bulletin No.: 04-07-30-024E
Date: June 09, 2006
No Movement in Drive or Reverse with or without DTC P0741, P0742, P0841, P1756, P1758, or P1882 (Replace Case Cover Assembly and Filter) Models:
2002 Saturn VUE - Retrofitted with a 2003 or 2004 VT25E (VTi) Transaxle (RPO M16/M75)
2003-2004 Saturn ION
2003-2005 Saturn VUE
with VT25E (VTi) Transaxle (RPO M16/M75)
This bulletin is being revised to add additional Correction information. Please discard Corporate Bulletin Number 04-07-30-024D (Section 07 - Transmission/Transaxle).
Some customers may comment on the vehicle not moving in the "D" (Drive) or "R" (Reverse) gear selection positions. In many cases, the transaxle will also produce an audible grind or whine noise when attempting to operate in drive or reverse. The Service Engine Soon (SES) telltale may be illuminated with DTCs P0741, P0742, P0841, P1756, P1758, or P1882 set.
This condition may occur when the VT25E transaxle belt has malfunctioned.