Installation Instructions:

1. Locate and remove the instrument panel fuse box cover (FBC). Page 7-64, Genesis G80 Manual (2018).

2. Inside the fuse/relay box cover, you can find the fuse/relay label describing fuse/relay names and capacities. Locate the BRAKE SWITCH fuse. Page 7-64, Genesis G80 Manual (2018).

3. Remove the BRAKE SWITCH fuse.

4. Press-fit the BLH connector into the BRAKE SWITCH fuse position.

   1. Verify that the BLH Fuse is secured and engaged properly into the BLH Fuse Box as shipping may have caused BLH Fuse to disengage.

5. Route BLH Switch through the bottom opening of the FBC. Flex FBC opening to avoid marring.

   1. If equipped with the optional Switch Backshell (SBS) upgrade, slide and snap the SBS through the rear opening of the FBC.

   2. If equipped with the optional G80 Boost Launch Harness Fuse Box Cover (BLHFBC) upgrade, simple install the BLHFBC in the OEM position.

6. Press the “1” or “ON” side of the BLH Switch.

7. Press Engine Start/Stop button to turn vehicle on.

8. If vehicle turns on as normal, installation is complete.

9. If vehicle does not turn on and the BRAKE SWITCH FUSE icon is illuminated on the dashboard, see Troubleshooting section.

How to use your BLH for a boosted launch?

1. Deactivate the Electronic Stability Control (ESC) System: State 2 -

   1. Press the ESC OFF button for more than 3 seconds. “ESC OFF” indicator icon will illuminate on dashboard and ESC OFF warning chime will sound. At this state, the engine control function and brake control function do not operate. Page 3-98 & 5-49, Genesis G80 Manual (2018).

2. Activate SPORT Mode -

   1. Press the Drive Mode button twice. “SPORT” indicator Icon will illuminate on dashboard and SPORT mode is active. At this stage, after accelerating and releasing the accelerator pedal, the gear and engine speed RPM may not drop as soon as in NORMAL mode. Page 3-101& 5-56, Genesis G80 Manual (2018).

3. Switch Boost Launch Harness (BLH) to the OFF position -

   1. Press the “O” or “OFF” side of the BLH Switch. At this stage, the engine or ECU does not register when your brake pedal is pressed.

      1. WARNING: When continuing to drive after initial launch, the ESC icon, above the ESC OFF icon, will illuminate after or soon after the initial launch. At this stage, the engine may not respond to the accelerator as it does under routine conditions and engine RPM may not increase even if you press the accelerator pedal deeply. This is to maintain the stability and traction of the vehicle and does not indicate a problem. Page 5-48, Genesis G80 Manual (2018).

4. Build Boost and Launch! The Learning Curve –

   1. Forcefully apply and hold the brake pedal to its maximum pressed position.

   2. Apply pressure to the accelerator pedal to initialize boost build by increasing engine RPM (shall not exceed over 2,700 RPM to avoid engine failure) within a period of 1 second or less followed by IMMEDIATELY releasing the brake pedal and fully pressing the accelerator pedal for Wide Open Throttle acceleration.

      1. CAUTION – SERIOUS INJURY OR DEATH RISK:

         1. Only experienced drivers shall use!

         2. Maintain a forceful or firm grip on the steering wheel at all times. Failure to do so may result in loss of control, leading to serious injury or death.

         3. Prevent tire spin by manually shifting gears as required. Improper handling may cause the vehicle to lose traction, resulting in accidents with potentially fatal consequences.

         4. Exercise extreme caution and adhere strictly to safe driving practices to minimize the risk of harm to yourself and others.

      2. CAUTION – VEHICLE AND ENGINE FAILURE RISK:

         1. Excessive boost pressure may result in severe engine damage, including detonation, engine failure, or overall vehicle malfunction.

         2. It is crucial to understand that the user assumes full responsibility and bears sole accountability for any related damages, injury or death.

      3. Note to user: Performance gains are user or driver dependent with an expected Learning Curve. Practice under safe conditions and within a closed safe non-public environment is expected. See full disclaimer.

5. Return to normal driving condition after Initial Launch –

   1. Bring the vehicle to a complete and safe stop.

   2. Activate the Electronic Stability Control System –

      1. Press the “1” or “ON” side of the BLH Switch.

      2. Press the Engine Start/Stop button to turn off the vehicle.

         1. Open the driver’s side door. Wait for all electronics/illuminated icons to turn off. Close the driver’s side door.

      3. Press the Engine Start/Stop button to turn on the vehicle.

         1. The ESC icons illuminate, then turn off if the ESC system is operating normally. Page 5-49, Genesis G80 Manual (2018).

      4. You are now back to normal driving conditions.

To see product description for full details, see our product listing here.