The dipstick is usually located near the back of the engine, somewhere in the general area between the engine and the firewall. It's often a long, slender dipstick with a handle that has markings for "ADD" and "FULL" or similar indicators. It might be dark-colored metal or have a bright plastic handle.
Here's how to try and find it:
1. Consult your owner's manual: This is your best bet. It should clearly show the location of the transmission dipstick and any specific instructions for checking and adding fluid.
2. Look carefully around the engine: Start by visually inspecting the engine bay. Pay close attention to the area between the engine and the firewall, focusing on long, slender rods or tubes that might have a handle.
3. Use a flashlight: Engine bays are dark, so a flashlight is essential for a thorough search.
4. Feel around (carefully): Once you've visually checked, carefully feel around in the general area, being mindful not to touch hot components.
Important Note: If you can't locate the dipstick, do not attempt to add transmission fluid blindly. Incorrectly adding fluid can cause serious damage to the transmission. It's best to take your Probe to a qualified mechanic to have the fluid level checked and topped off. They have the proper tools and knowledge to safely perform this task.