Rear Heated Oxygen Sensor

WARNING: This page is about a different car, the 2024 Kia Sorento. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect the negative (-) battery terminal.
(Refer to Engine Electrical System - "AUXILIARY BATTERY ")
Disconnect the heated oxygen sensor connector (A).

Courtesy of KIA MOTORS AMERICA, INC.
Remove the connector (A) from the bracket by pulling it in the direction of arrow.

Courtesy of KIA MOTORS AMERICA, INC.
Separate the rear heated oxygen sensor wiring (A) from the fixing clip.

Courtesy of KIA MOTORS AMERICA, INC.
Remove the rear engine room under cover (A) by removing the nuts and bolts.
Tightening torque:

7.8-11.8 N.m (0.8 - 1.2 kgf.m, 5.8 - 8.7 lb.ft)

Courtesy of KIA MOTORS AMERICA, INC.
Remove the rear heated oxygen sensor (A) by using the SST (09392 - 1Y100 or 09392 - 2H100).
Tightening torque:

39.2 - 49.1 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.2 lb.ft)

Courtesy of KIA MOTORS AMERICA, INC.