44 Electrical bulb & socket parts are listed for the 2020 Toyota Prius, in 9 part types, covering the 1.8L L4 ELECTRIC/GAS engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2020 Toyota Prius, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Map / Reading Light Bulb (7 parts), Outside Mirror Illumination Lamp Bulb (7 parts) and Side Marker Light Bulb (7 parts). The other 6 part types cover the remaining 23 parts.
Every part on this page is matched to the 1.8L L4 ELECTRIC/GAS — the only engine offered in the 2020 Toyota Prius.
The most listed brands for 2020 Toyota Prius electrical bulb & socket parts are SYLVANIA (30 parts), WAGNER (7 parts) and PEAK (4 parts), plus 1 more brand. Quality grades include LED, Extended Life and Standard Replacement.
12 parts on this 2020 Toyota Prius page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA 168LL (Door Panel Light Bulb). Click any part number to see every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
| SYLVANIA | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Back Up / Reverse Lamp Bulb parts are listed for the 2020 Toyota Prius, from SYLVANIA and WAGNER. SYLVANIA 921LL carries the "Popular" badge.
The Extended Life section lists 2 options from SYLVANIA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 921ST is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, WAGNER supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 921WLED.
The Standard Replacement section lists 2 options from WAGNER and SYLVANIA — built to original-equipment specification. WAGNER 921 is listed in this group.
This group includes SYLVANIA 921LL and SYLVANIA 921ST and the remaining parts above.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base4.900 Watt | View on Amazon |
| SYLVANIA | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 4.90 W | View on Amazon |
This table covers the replacement bulbs for the Door Panel Light. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Door Panel Light Bulb parts for the 2020 Toyota Prius come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA 168LL.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 168LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 168ST.
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 168SL is listed in this group.
Standard Replacement: 2 parts, from WAGNER and SYLVANIA. A representative part number is WAGNER 168.
Listed part numbers: SYLVANIA 168LL and SYLVANIA 168ST, plus the other parts above.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA | 168SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base4.900 Watt | View on Amazon |
| SYLVANIA | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 4.90 W | View on Amazon |
This table covers the bulbs in the map / reading lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Map / Reading Light Bulb parts are listed for the 2020 Toyota Prius, from SYLVANIA, WAGNER and PHILIPS. SYLVANIA 168LL carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 168LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 168ST is listed in this group.
LED (instant-on, long life, energy-saving): 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 194RLED.
The Standard Replacement section: 2 options from WAGNER and SYLVANIA. WAGNER 168 is listed in this group.
Part numbers include SYLVANIA 168LL and SYLVANIA 168ST, among others listed above.
Outside Mirror Illumination Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 168LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168ST | 🇺🇸 US 🇨🇦 CA | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
| SYLVANIA | 168BLED | 🇺🇸 US 🇨🇦 CA | ZEVO | View on Amazon |
| SYLVANIA | 168BSL | 🇺🇸 US 🇨🇦 CA | LED | View on Amazon |
| SYLVANIA | 168LED | 🇺🇸 US 🇨🇦 CA | ZEVOCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 168 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.2dWattage: 4.90 W | View on Amazon |
This table covers the replacement bulbs for the Outside Mirror Illumination Lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
SYLVANIA supplies the 7 Outside Mirror Illumination Lamp Bulb parts for the 2020 Toyota Prius. SYLVANIA 168LL carries the "Popular" badge.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 168LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 168ST is listed in this group.
LED (instant-on, long life, energy-saving): 4 parts, from SYLVANIA. A representative part number is SYLVANIA 168SL.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 168 is listed in this group.
This group includes SYLVANIA 168LL, SYLVANIA 168ST and SYLVANIA 168SL and the remaining parts above.
Parking Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA | 2825BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 2825 | 🇺🇸 US 🇨🇦 CA | Parking LightBulb | View on Amazon |
This table covers the bulbs in the parking lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
6 Parking Lamp Bulb parts for the 2020 Toyota Prius come from 2 brands — SYLVANIA and PEAK. The "Popular" part is SYLVANIA 2825LL.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825ST.
The LED (instant-on, long life, energy-saving) section: 2 options from SYLVANIA. SYLVANIA 2825SL is listed in this group.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, plus the other parts above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA | 2825BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 2825 | 🇺🇸 US 🇨🇦 CA | FrontBulb | View on Amazon |
This table covers the bulbs in the side-marker lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Side Marker Light Bulb parts are listed for the 2020 Toyota Prius, from SYLVANIA, PHILIPS and PEAK. SYLVANIA 2825LL carries the "Popular" badge.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2825LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 2825ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and PHILIPS. A representative part number is PHILIPS 194RLED.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 2825 is listed in this group.
1 ungrouped part is not assigned to a grade, with the same engine-level match.
This group includes SYLVANIA 2825LL, SYLVANIA 2825ST and PHILIPS 194RLED and the remaining parts above.
Step / Courtesy Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 168 | 🇺🇸 US 🇨🇦 CA | Step or Courtesy LightInterior Door Light Bulb | View on Amazon |
This table covers the bulbs in the step and courtesy lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
One part is listed for the 2020 Toyota Prius — PEAK 168.
Trunk / Cargo Area Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 168 | 🇺🇸 US 🇨🇦 CA | Trunk LightLuggage Compartment Light Bulb | View on Amazon |
| PHILIPS | 194RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
This table covers the bulbs in the trunk or cargo-area lamp. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
2 Trunk / Cargo Area Light Bulb parts for the 2020 Toyota Prius come from 2 brands — PEAK and PHILIPS.
Part numbers include PEAK 168 and PHILIPS 194RLED.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7440ALL | 🇺🇸 US 🇨🇦 CA | AmberBase Type: W3X16D | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7440A | 🇺🇸 US 🇨🇦 CA | Amber | View on Amazon |
This table covers the bulbs in the turn-signal lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
SYLVANIA supplies both parts for the 2020 Toyota Prius.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7440ALL is listed in this group.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 7440A is listed in this group.
This group includes SYLVANIA 7440ALL and SYLVANIA 7440A.
Buying Electrical Bulb & Socket Parts for a 2020 Toyota Prius
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Confirm you have the 1.8L L4 ELECTRIC/GAS engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Map / Reading Light Bulb and Outside Mirror Illumination Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2020 Toyota Prius?
Our catalog currently lists 44 electrical bulb & socket parts for the 2020 Toyota Prius across 9 subcategories and 4 brands, covering the 1.8L L4 ELECTRIC/GAS engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2020 Toyota Prius?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2020 Toyota Prius was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2020 Toyota Prius?
Every part on this page is matched to the 1.8L L4 ELECTRIC/GAS engine. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2020 Toyota Prius
Electrical Bulb & Socket Parts for Other Toyota Prius Years
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