Bad powertrain mount or worn CV joint or high idle speed or torque converter problem.
Is there park and nurtural?
Your trans fluid could be low or your trans is on it's way out the door.Some cars,reverse is the first to go.Good luck.If the fluid is not low,drop the pan replace the filter and put a trans additive in when you fill it up after the trans service.The best additive is called trans-x.
trans is slipping
The most common problem I have seen is a failed motor or trans mount.
internal trans problem need new trans sorry
it may be the slave cylinder or clutch master cylinder
A "speed" sensor can affect the shifting of the trans.A "speed" sensor can affect the shifting of the trans.
Do you have a check engine light. I have had problems with my 01 Lanos and the check engine light came on and it was the oxygen sensor so that may be your problem
first check fuses,then bulbs,then reverse switch on trans mission,it might need replacing,its screw into your transmission.
I'm having the same problem with my trans. I've read online that these trans have a lot of problems with the input and output speed sensors.
Rev servo inop for some reason. Takeit to the trans shop.
Check transmission fluid level if full you have an internal trans. problem Check transmission fluid level if full you have an internal trans. problem