Where is the transmission shift solenoid located on a 2001 Chevrolet Suburban?

The transmission shift solenoid on a 2001 Chevrolet Suburban isn't located in a single, easily accessible spot. It's inside the transmission itself. This means you'll need to remove the transmission to access it.

There are multiple shift solenoids within the transmission valve body. To find the specific solenoid you need (if you have a malfunctioning one), you'll need either a repair manual specific to your Suburban's transmission type (likely a 4L60E, but you should verify) or a schematic of the valve body. The manual will show their location and how to access them after removing the valve body from the transmission.

Accessing the solenoids is a complex job requiring specialized tools and knowledge of automotive transmissions. It's generally not a DIY task for someone without significant experience. You'll likely need to take it to a qualified transmission repair shop.