Where is the 2017 chevy cruze o2 sensor located?

Your 2017 Chevrolet Cruze will have two different oxygen sensors -- a single downstream and a single upstream. Different makes and models typically have between 2 and 5, so You're on the lower end of the range -- that's great, because it's overall fewer parts to need to replace! To find Your upstream oxygen sensor (the one before the catalytic converter), take a look under the hood. You'll see the sensor below the engine, on the exhaust manifold, with a wire (likely white) coming from it. This is slightly to the right of Your oil dipstick. The downstream oxygen sensor is located on the exhaust pipe, immediately to the rear of the engine. You can typically reach it with a long extension from the top since it is upward facing, but most people choose to work from underneath the car.