2018 Toyota Prius Electrical Parts

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

4 Battery parts are listed for the 2018 Toyota Prius, from BOSCH, DEKA, FVP and 1 other brand.

Part numbers include BOSCH S6566B, DEKA 9A140R and FVP PLN1AGM, among others listed above.

This table covers the Battery Air filters. Typical signs include restricted flow — long cranking, weak airflow, or dirty fluid after a short interval. Seat the new filter so it cannot bypass, and use the grade the notes call for. Read more

One part is listed for the 2018 Toyota Prius — WIX WP11025.

This table covers the Battery Cooling fans. Typical signs include overheating at idle, a fan that never comes on, or a blade that hits the shroud. Confirm the fan command and the relay before replacing the assembly. Read more

2 Battery Cooling Fan parts are listed for the 2018 Toyota Prius, from FOUR SEASONS and GPD.

Part numbers include FOUR SEASONS 76808 and GPD 2312075.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Battery Current Sensor parts for the 2018 Toyota Prius come from WELLS.

Listed part numbers: WELLS 5S17121 and WELLS 5S17122.

This table covers the terminals and clamps that connect cables to the battery posts. Read more

3 Battery Terminal parts are listed for the 2018 Toyota Prius, from BECK/ARNLEY, DORMAN and STANDARD MOTOR PRODUCTS.

This group includes BECK/ARNLEY 2060001, DORMAN 926515 and STANDARD MOTOR PRODUCTS BP100P.

This table covers the Blind Spot Detection sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Blind Spot Detection Sensor parts for the 2018 Toyota Prius come from WELLS.

This group includes WELLS 5S16569 and WELLS 5S16573.

This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Cruise Control Distance Sensor parts are listed for the 2018 Toyota Prius, from DORMAN and WELLS.

Part numbers include DORMAN 601743 and WELLS 5S17123.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

BUSSMANN supplies the 10 Fuse parts for the 2018 Toyota Prius. BUSSMANN ATM20LP carries the "Popular" badge.

The 10 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM10LP is listed in this group.

In the 15 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM15LP.

In the 20 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM20LP.

The 25 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM25LP is listed in this group.

The 30 Amp section lists 2 options from BUSSMANN — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMX30LP is listed in this group.

The 5 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM5LP is listed in this group.

The 50 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMX50LP is listed in this group.

2 ungrouped parts are not assigned to a grade, with the same engine-level match.

This table covers the horns mounted in the front of the vehicle. Read more

FIAMM supplies the 13 Horn parts for the 2018 Toyota Prius. FIAMM 7210223 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 7 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 7210223.

The Standard Replacement section lists 6 options from FIAMM — built to original-equipment specification. FIAMM 7201223 is listed in this group.

This table covers the Hybrid Battery Voltage sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

One part is listed for the 2018 Toyota Prius — STANDARD MOTOR PRODUCTS BSC35.

This table covers the ultrasonic park-aid sensors in the bumper. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

10 Parking Aid Sensor parts for the 2018 Toyota Prius come from STANDARD MOTOR PRODUCTS. The "Popular" part is STANDARD MOTOR PRODUCTS PPS166.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: DORMAN 601497.