Hyundai Kia Rear Parking Radar Sensor 4MT271H7D

Hyundai Kia 4MT271H7D parking sensor: your parking assistance regains its voice

It only takes one silent sensor for the entire system to go haywire: continuous beeping, an alert that never stops, or complete silence at the exact moment you need to be warned. This Hyundai Kia parking sensor uses the manufacturer's 4MT271H7D reference and restores a parking assistance system that has become temperamental. As you reverse, the cadence becomes clear and progressive again, and parallel parking in the evening stops being a game of chance. It is exactly the part you are looking for when the original Hyundai parking sensor gives up after a few winters.

Original references covered by this Hyundai and Kia sensor

The manufacturer lists this sensor as equivalent to references 4MT271H7D, 4MS271H7D, 4MS271H7C, 96890-A5000, 95720-3U100, and 957203U100. It is a wide range of parts, typical of components shared between the two brands in the group: a Kia parking sensor and its Hyundai equivalent very often share the same mold and connector. However, the golden rule remains the same for any part with a reference number: note the number engraved on the back of your original sensor and compare it to this list before ordering. An identical OEM reference 96890-A5000 is worth more than ten descriptions.

How a new sensor changes the radar's behavior

A parking sensor ages in two ways: the ultrasonic membrane loses sensitivity, and moisture eventually damages the connector contacts. The result is the same—erratic distances, alerts triggered by nothing, or a module that cuts off the faulty channel. Replacing the defective element restores consistent measurements across all four channels to the control unit. On a Hyundai parking sensor, this is often the only intervention required: the control box itself rarely fails.

• OEM-reference parking sensor—designed according to the original dimensions, with an identical connector and thread
• Compatible with Hyundai and Kia—one sensor for two brands in the same group, depending on the reference
• Individual replacement—you only replace the faulty channel, not the entire kit
• No electronic adjustment—the module recognizes the new sensor as soon as it is powered on
• Rear or front parking assistance sensor—depending on the original location on your vehicle

Replacing the parking sensor on your Hyundai or Kia

The work is done from the rear of the bumper. Depending on the model, you must either partially remove the bumper or access it through the wheel arch after removing the protective cover. The sensor clips out of its retaining ring, the connector is released by pressing the tab, and the new part fits exactly into the same housing. This parking sensor replacement requires about an hour of patience and two spare clips just in case. Compatibility and the exact location must be checked before installation according to your vehicle's version.

How to identify which of the four sensors is faulty?

The simplest method costs nothing: turn the ignition on, put the car in reverse, and place your hand a few centimeters from each sensor one by one. A healthy sensor vibrates very slightly and emits an ultrasonic clicking sound perceptible to the touch; a dead sensor remains completely inert. If your vehicle displays fault codes via the diagnostic port, the parking assistance control unit directly identifies the affected channel. A defective parking sensor also gives itself away with a continuous alert as soon as reverse gear is engaged, even when there is no obstacle in front of it.

Detection and maneuvering parts selected by Becquet Voiture

For parts with a reference number, we refuse vague listings: a sensor is chosen based on a number, not a photo. We therefore publish all the references listed by the manufacturer and invite you to cross-check them with yours. Our French-speaking team is happy to read the number engraved on your parking sensor with you before you confirm the order.

Note the reference of your original sensor and order the 4MT271H7D sensor, which will restore a stress-free reverse gear to your Hyundai or Kia.

Type: Parking sensor / ultrasonic sensor, parking assistance
Listed OEM references: 4MT271H7D, 4MS271H7D, 4MS271H7C, 96890-A5000, 95720-3U100, 957203U100
Compatible brands: Hyundai, Kia
Years: Depending on version and reference—check before installation
Operation: Ultrasonic
Packaging: 1 sensor
Installation: Identical replacement in the original bumper retaining ring
Adjustment: No programming required