Hyundai Elantra: Air Conditioning System / PM Sensor
Description and operation
Monitor the air quality inside the vehicle in real time (PM sensor) and display the status on the screen.
Automatically operate when fine dust concentration is high (Condition: Bet mode + A/C ON + 3rd speed or higher)
Components and components location

Repair procedures
1. | Disconnect the negative (-) battery terminal. |
2. | Remove the crash pad air vent [RH]. (Refer to Body (Interior and Exterior) - "Crash Pad Air Vent") |
3. | Loosen the mounting screw and remove the PM sensor (A). 
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4. | Install in the reverse order of removal. •
| Replace any damaged clips |
•
| Make sure the connector is connected properly. |
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Description
DescriptionThe auto defogging sensor is installed on the front window glass. The sensor judges and sends signal if moisture occurs to blow out wind for defogging...
Other information:
These two warning lights illuminate at the
same time while driving:
When the ABS and regular brake system
may not work normally.
In this case, have the vehicle inspected
by an authorized HYUNDAI dealer.
WARNING
Electronic Brake Force Distribution
(EBD) System Warning Light
When both ABS and Parking Brake &
Brake Fluid Warning Lights are on, the
brake system will not work normally
and ..
Troubleshooting
Trouble symptom
Suspect area
Remedy
Clutch slipping•
Car will not respond to engine speed during acceleration •
Insufficient vehicle speed •
Lack of power during uphill driving Insufficient pedal free playAdjustClogged hydrauli..