This page lists 17 electrical switch & relay parts for the 2021 Genesis G80, across 8 part types, covering both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Genesis G80, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches. Most of the listed parts are Oil Pressure Sender / Switch (4 parts), Brake Light Switch (3 parts) and A/C Refrigerant Pressure Switch (2 parts). The other 5 part types cover the remaining 8 parts.
The 2021 Genesis G80 was sold with both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged. All 17 parts on this page fit every engine.
The most listed brands for 2021 Genesis G80 electrical switch & relay parts are WELLS (8 parts), VEMO (2 parts) and HYUNDAI (2 parts), plus 4 more brands.
Each part number listed for the 2021 Genesis G80 opens a page with every vehicle that part fits.
A/C Pressure Safety Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| VEMO Fits: all 2021 G80 engines | V52730043 | 🇺🇸 US 🇨🇦 CA | FR Cooler - Dual Full Auto A/CDouble Pipe IHX | View on Amazon |
This table covers the A/C Pressure Safety switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
One part is listed for the 2021 Genesis G80 — VEMO V52730043.
A/C Refrigerant Pressure Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 G80 engines | 97721D2000 | 🇺🇸 US | Included with liquid line, suction hose, discharge hose, hose and tube assembly | View on Amazon |
| UAC Fits: all 2021 G80 engines | SW9969C | 🇺🇸 US 🇨🇦 CA | Pressure Transducer | View on Amazon |
This table covers the pressure switches on the A/C circuit. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 A/C Refrigerant Pressure Switch parts for the 2021 Genesis G80 come from 2 brands — HYUNDAI and UAC. Every part fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged.
Listed part numbers: HYUNDAI 97721D2000 and UAC SW9969C.
Accessory Power Relay
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HYUNDAI Fits: all 2021 G80 engines | 952302P020 | 🇺🇸 US | Rear | View on Amazon |
This table covers the relays that control the Accessory Power circuit. Typical signs include a click with no action, or a circuit that works only when you swap in a known-good relay. Swap with an identical relay in the fuse box before buying — it is the fastest test there is.
One part is listed for the 2021 Genesis G80 — HYUNDAI 952302P020.
Brake Light Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS Fits: all 2021 G80 engines | SLS612 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| VEMO Fits: all 2021 G80 engines | V52730052 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WELLS Fits: all 2021 G80 engines | 1S16381 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the pedal-mounted switch that turns on the brake lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
3 Brake Light Switch parts for the 2021 Genesis G80 come from 3 brands — STANDARD MOTOR PRODUCTS, VEMO and WELLS. Every part fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged.
Listed part numbers: STANDARD MOTOR PRODUCTS SLS612, VEMO V52730052 and WELLS 1S16381.
Dimmer Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G80 engines | 1S18020 | 🇺🇸 US 🇨🇦 CA | without heated steering wheel | View on Amazon |
| WELLS Fits: all 2021 G80 engines | 1S18021 | 🇺🇸 US 🇨🇦 CA | with heated steering wheel | View on Amazon |
This table covers the dimmer switches that select headlamp high and low beam. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
WELLS supplies both parts for the 2021 Genesis G80. All of them fit every engine offered in the 2021 G80.
This group includes WELLS 1S18020 and WELLS 1S18021.
Headlamp Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G80 engines | 1S18020 | 🇺🇸 US 🇨🇦 CA | without heated steering wheel | View on Amazon |
| WELLS Fits: all 2021 G80 engines | 1S18021 | 🇺🇸 US 🇨🇦 CA | with heated steering wheel | View on Amazon |
This table covers the column or dash switches that control the exterior lamps. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
WELLS supplies both parts for the 2021 Genesis G80. All of them fit every engine offered in the 2021 G80.
Listed part numbers: WELLS 1S18020 and WELLS 1S18021.
Oil Pressure Sender / Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| FACET Fits: all 2021 G80 engines | 250071 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GPD Fits: all 2021 G80 engines | 1816562 | 🇺🇸 US 🇨🇦 CA | with Light | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: all 2021 G80 engines | PS772 | 🇺🇸 US 🇨🇦 CA | with 4 Blade Terminals | View on Amazon |
| WELLS Fits: all 2021 G80 engines | 1S17782 | 🇺🇸 US 🇨🇦 CA | View on Amazon |
This table covers the senders and switches that report oil pressure to the gauge or lamp. Typical signs include a lamp that stays on, or a gauge that never moves. Confirm power and ground at the connector before replacing the sender or switch.
4 Oil Pressure Sender / Switch parts for the 2021 Genesis G80 come from 4 brands — FACET, GPD, STANDARD MOTOR PRODUCTS and 1 other brand. Every part fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged.
Part numbers include FACET 250071, GPD 1816562 and STANDARD MOTOR PRODUCTS PS772, among others listed above.
Turn Signal Switch
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: all 2021 G80 engines | 1S18020 | 🇺🇸 US 🇨🇦 CA | without heated steering wheel | View on Amazon |
| WELLS Fits: all 2021 G80 engines | 1S18021 | 🇺🇸 US 🇨🇦 CA | with heated steering wheel | View on Amazon |
This table covers the combination / turn-signal switches. Typical signs include a function that works intermittently, or a click without the accessory coming on. Inspect the connector behind the switch; heat-damaged terminals will kill the new part too.
2 Turn Signal Switch parts for the 2021 Genesis G80 come from WELLS. Every part fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged.
Part numbers include WELLS 1S18020 and WELLS 1S18021.
Buying Electrical Switch & Relay Parts for a 2021 Genesis G80
On this vehicle, the switch and relay system covers the switches, relays and flashers that route power to everything the driver touches.
- You do not need to pick an engine: every electrical switch & relay part on this page fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Oil Pressure Sender / Switch and Brake Light Switch .
Frequently Asked Questions
How many electrical switch & relay parts fit the 2021 Genesis G80?
Our catalog currently lists 17 electrical switch & relay parts for the 2021 Genesis G80 across 8 subcategories and 7 brands, covering both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical switch & relay parts differ between 2021 Genesis G80 engines?
No. On this page every electrical switch & relay part fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical switch & relay problems on a 2021 Genesis G80?
Common symptoms include accessories that work intermittently, a click without action, or one function dead while its fuse tests fine. 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, inspect the connector terminals behind any failed switch — heat damage there will kill the new part too.
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 2021 Genesis G80 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 2021 Genesis G80?
Every part on this page already fits both the 2.5L L4 Turbocharged and the 3.5L V6 Turbocharged. Then swap a suspect relay with an identical known-good one from the fuse box before buying — it is the fastest diagnostic there is. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Genesis G80
Electrical Switch & Relay Parts for Other Genesis G80 Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.