Hyundai Sonata: Front Seats / Manual adjustment

Forward and rearward adjustment

To move the seat forward or rearward:

1. Pull up the seat slide adjustment lever and hold it.

2. Slide the seat to the position you desire.

3. Release the lever and make sure the seat is locked in place. Move forward and rearward without using the lever. If the seat moves, it is not locked properly.

Seatback angle

To recline the seatback:

1. Lean forward slightly and lift up the seatback lever.

2. Carefully lean back on the seat and adjust the seatback to the position you desire.

3. Release the lever and make sure the seatback is locked in place. (The lever MUST return to its original position for the seatback to lock.)

Reclining seatback

Sitting in a reclined position when the vehicle is in motion can be dangerous. Even when buckled up, the protection of your restraint system (seat belts and air bags) is greatly reduced by reclining your seatback.

WARNING

NEVER ride with a reclined seatback when the vehicle is moving.

Riding with a reclined seatback increases your chance of serious or fatal injuries in the event of a collision or sudden stop.

Drivers and passengers should ALWAYS sit well back in their seats, properly belted, and with the seatbacks upright.

Seat belts must be snug against your hips and chest to work properly. When the seatback is reclined, the shoulder belt cannot do its job because it will not be snug against your chest. Instead, it will be in front of you. During an accident, you could be thrown into the seat belt, causing neck or other injuries.

The more the seatback is reclined, the greater chance the passenger’s hips will slide under the lap belt or the passenger's neck will strike the shoulder belt.

Seat cushion height

To change the height of the seat cushion:

Front Seats
WARNING Take the following precautions when adjusting your seat: NEVER attempt to adjust the seat while the vehicle is moving. The seat could respond with unexpected movement and may cause loss of ...

Power adjustment
The front seat can be adjusted by using the control switches located on the outside of the seat cushion. Before driving, adjust the seat to the proper position so that you can easily control the ste ...

Other information:

Hyundai Sonata LF 2014-2019 Owners Manual: LKAS malfunction
Check LKAS LKAS failure indicator The LKAS failure indicator (yellow) will illuminate if the LKAS is not working properly. Have your vehicle checked by an authorized HYUNDAI dealer. WARNING The driver is responsible for accurate steering. Turn off the system and drive the vehicle in below situa ...

Hyundai Sonata LF 2014-2019 Service Manual: Master Cylinder Repair procedures
Removal 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the air cleaner assembly (A). 3. Disconnect the brake fluid level switch connector (A). 4. Remove the brake fluid from the master cylinder reservoir with a syringe.     †...

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