Instead of checking the fluid level yourself, you should:
* Consult your owner's manual: This is the most reliable source for information specific to your vehicle. It will tell you the transmission type and any maintenance requirements, including whether or not a fluid check is necessary.
* Have a mechanic check it: If you suspect a problem with your transmission (rough shifting, slipping, noises, etc.), take your Grand Am to a qualified mechanic. They have the proper tools and knowledge to diagnose and address any transmission issues, including checking the fluid level (if possible on your specific model) and condition.
Why no dipstick? Modern automatic transmissions often use sealed systems for better reliability and to prevent leaks. The fluid level is generally checked by a professional using specialized equipment. Attempting to check the fluid level improperly can be difficult and could damage the transmission.