The wheels on your vehicle were aligned and balanced carefully at the factory to give you the longest tire life and best overall performance.
In most cases, you will not need to have your wheels aligned again. However, if you notice unusual tire wear or your vehicle pulling one way or the other, the alignment may need to be reset.
If you notice your vehicle vibrating when driving on a smooth road, your wheels may need to be rebalanced.
CAUTION
Improper wheel weights can damage your vehicle's aluminum wheels. Use only approved wheel weights.
Kia Niro 2017 (DE HEV) Service Manual: Sub Frame Repair procedures
Removal
1.
Disconnect the battery negative cable.
2.
Remove the universal bolt (A).
Tightening torque :
32.4 - 37.3 N·m (3.3 - 3.8 kgf·m, 23.9 - 27.5 lb·ft)
...
Kia Niro (DE HEV) Owners Manual: SRS Care
The SRS is virtually maintenance-free and so there are no parts you can safely
service by yourself. If the SRS air bag warning light does not illuminate, or continuously
remains on, we recommend that the system be inspected by an authorized Kia dealer.
WARNING
Modification to SRS components ...