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The 2015 Hyundai Elantra comes with an oil pressure switch that is situated inside the engine compartment, specifically at the back of the engine block on the upper part. If you discover that the switch is not working properly, you will have to replace it. The parts alone for this replacement can range from $30 to $87. If you opt to have a mechanic or auto technician do the replacement, you will need to budget an extra $50 to $160 for labor. Signs of a defective oil pressure switch include the oil pressure light turning on, the gauge flashing as the sensor loses power, and the oil pressure reading dropping to 0 and not changing while driving.
The oil pressure sensor for the 2015 Hyundai Elantra is situated at the rear and upper part of the engine area, securely fastened to the engine block.