Keep your parking assist reading clearly with the Standard Ignition Parking Aid Sensor PPS104. This ultrasonic sensor mounts in the bumper, sending and receiving sound pulses to gauge the distance between your vehicle and nearby objects, then feeds that signal to the parking-aid system so it can warn the driver during low-speed maneuvers. It's a direct-fit replacement cataloged for the FRONT OUTER and REAR INNER positions on the listed Toyota applications.
- Ultrasonic detection: emits and receives sound waves to measure proximity to obstacles and relay that data to the parking-assist module.
- Position: cataloged for the FRONT OUTER and REAR INNER sensor locations.
- Direct-fit: a direct-fit replacement for the listed applications.
- Signs it may need replacing: continuous beeping, no alert tones, or inaccurate/false readings — diagnose the cause before replacing, as a fault may lie in the wiring or module.
Fitment: 2016-2018 Toyota Prius, 2020-2021 Toyota Prius, and 2017-2021 Toyota Prius Prime.
Interchange: BWS104 · PASA138 · PAS1512 · 800-4133 · 8004133 · 8934148040A3 · Manufacturer part number PPS104.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this parking aid sensor do?
It's an ultrasonic sensor that emits and receives sound pulses to measure the distance to nearby objects, relaying that signal to the parking-assist system to alert the driver during low-speed maneuvers.
Which vehicles does the PPS104 fit?
It fits the 2016-2018 and 2020-2021 Toyota Prius, plus the 2017-2021 Toyota Prius Prime. Check the Buyer's Guide tab to confirm your vehicle.
What position is this sensor for?
It is cataloged for the FRONT OUTER and REAR INNER sensor positions on the listed applications.
What are signs this sensor may need replacing?
Continuous beeping, missing alert tones, or false/inaccurate readings can indicate a failed sensor. Diagnose the system first, since wiring or the module can also cause these symptoms.
What numbers does this sensor interchange with?
It replaces BWS104, PASA138, PAS1512, 800-4133 (8004133), and 8934148040A3. Its own manufacturer part number is PPS104.
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