Hyundai Sonata: Restrictions in handling keys
When leaving keys with parking lot and valet attendants, the following procedures will ensure that your vehicle’s trunk and glove box compartment can only be opened with the master key.
Lock
When leaving the key with a parking lot attendant or valet, perform the following and leave the sub key with the attendant. The sub key can start the engine and operate door locks only.

Trunk
1. Open the trunk lid.
2. Set the trunk lid control switch to LOCK position (
).
3. Close the trunk lid.
Glove box
Close and lock the glove box using the master key.
Lock release
Trunk
1. Open the trunk lid with the master key.
2. Set the trunk lid control switch to UNLOCK position (
).
3. Close the trunk lid.
In this position the trunk will open with the trunk lid release button or transmitter. The trunk can never be opened with the sub key.
Glove box
Unlock the glove box using the mechanical key.
Key operations
(1) Master key (M)
Used to start the engine, lock and unlock the doors, lock and unlock the glove
box, and open the trunk.
(2) Sub key (S)
Used only to start the engine and lock and unlock the do ...
Immobilizer system
Your vehicle is equipped with an electronic engine immobilizer system to reduce
the risk of unauthorized vehicle use.
Your immobilizer system is comprised of a small transponder in the ignition key ...
See also:
Automatic transaxle operation
The automatic transaxle has 6 forward speeds and one reverse speed. The individual
speeds are selected automatically, depending on the position of the shift lever.
To move the shift lever from th ...
Troubleshooting
Troubleshooting
Symptom
Suspect area
Engine will not start or struggle to start
Vapor hose damaged or disconnected
Engine strugg ...
Knock Sensor (KS). Specifications
Specification
Item
Specification
Capacitance (pF)
850 ~ 1,150
...
