Is 02 sensor bank 2 on the passenger side 2003 chevy suburban?

On a 2003 Chevy Suburban, Bank 2 is generally the passenger side. Therefore, the O2 sensor in Bank 2 would be located on the passenger side. However, it's crucial to consult a repair manual specific to your Suburban's engine (e.g., 5.3L, 6.0L) to be absolutely certain of the exact sensor location. The exhaust manifold design can vary slightly.