Where do you put the transmission fluid on a 1999 Chevy Tahoe?

The transmission fluid dipstick on a 1999 Chevy Tahoe is located on the passenger side of the engine compartment. It's usually a long, thin dipstick with markings for "Add" and "Full". However, be aware that some 1999 Tahoes may have a different transmission type (e.g., 4L60E, 4L80E) and the location of the dipstick might vary slightly depending on the specific transmission.

To be absolutely certain, consult your owner's manual. It will show you exactly where the dipstick is located and provide specific instructions for checking and adding transmission fluid. If you don't have the manual, you can usually find a digital copy online through a Chevrolet parts website or a site specializing in vehicle manuals.

Don't rely solely on online information for this; the owner's manual is the best source for this kind of information about your specific vehicle.