
The vehicle identification number (VIN) is the number used in registering your car and in all legal matters pertaining to its ownership, etc.
The number is punched on the floor under the passenger seat. To check the number, open the cover.

The VIN is also on a plate attached to the top of the dashboard. The number on the plate can easily be seen through the windshield from outside.
Recommended SAE viscosity number
Vehicle certification labelHyundai Tucson (LM) 2010-2015 Service Manual: Back-up Lamp Switch Repair procedures
Inspection
1.
Disconnect the back up lamp switch connector (A).
2.
Check the continuity between no. 1 and 2 terminals of backup
lamp switch. When the shift lever is in reverse, there should be
continuity.
3.
If necessary, repair or replace the backup lamp switch.
Replacement
1. ...
Hyundai Tucson (LM) 2010-2015 Service Manual: DBC Switch Repair procedures
Inspection
1.
Turn ignition switch OFF and disconnect the negative (-) battery cable.
2.
Remove the crash pad side switch assembly.
(Refer to Body - "Crash Pad")
3.
Check the continuity between the switch terminals as the DBC switch is engaged. ...