How to Put Hyundai Genesis into EPB Service Mode

Last Updated: June 26, 2026

Quick Answer

To put your Hyundai Genesis into EPB (Electronic Parking Brake) service mode, turn the ignition ON (engine off), press and hold the EPB switch in the release direction, then press and hold the brake pedal. Release the EPB switch, press it again once while keeping the brake pedal pressed, and watch for the EPB indicator to start flashing. This sequence works for most 2015–2020 Genesis models and allows safe rear brake pad or rotor replacement without damaging the parking brake actuators.

What Is EPB Service Mode and Why Do You Need It?

Electronic Parking Brake (EPB) service mode is a diagnostic state that fully retracts the rear parking brake actuators. When you work on the rear brakes—replacing pads, rotors, or calipers—the EPB motors must be in their fully released position. Otherwise, you cannot push the caliper pistons back, and forcing them can strip internal gears or burn out the actuator motor.

When Do You Need EPB Service Mode?

• Rear brake pad replacement – Most common reason. The pistons must retract to fit new, thicker pads.
• Rotor resurfacing or replacement – The caliper must slide off freely.
• Caliper overhaul or replacement – You need to disconnect the hydraulic line and remove the entire assembly.
• Any work requiring piston retraction – Even if you're just inspecting the rear brakes, entering service mode prevents accidental damage.

Risks of Skipping Service Mode

Attempting to push back the caliper piston while the EPB is still engaged can:

• Damage the internal worm gear of the EPB actuator
• Burn out the actuator motor
• Trigger fault codes like C1622 (EPB motor stuck) or C1623 (EPB switch malfunction)
• Lead to expensive caliper assembly replacement (often only available as a complete unit)

These repairs often require dealer-level scan tools to reset. It's far easier to spend 30 seconds entering service mode correctly.

Tools and Preparation

Before you begin, gather the following:

Vehicle Conditions

• Battery voltage above 12V – Low voltage can prevent the EPB control module from entering service mode. If the battery is weak, charge it first or use a jump pack.
• Engine off, ignition ON – For push-button start, press the START button twice without touching the brake pedal. The dashboard should illuminate.
• No active fault codes – If you have a check engine light or ABS warning, scan the system and clear any EPB-related codes before attempting the sequence.
• Confirm your model year – The procedure differs between first-generation (2009–2014) and second-generation (2015–2020) Hyundai Genesis. This guide focuses on the 2015–2020 models.

Step-by-Step Procedure (Most Common Method for 2015–2020 Genesis)

Follow these steps exactly. Timing and order matter.

1. Set Up the Vehicle

Park on level ground. Engage the regular parking brake initially (it will release when you enter service mode). Turn the ignition ON with the engine off. Make sure the transmission is in Park (for automatic) or Neutral (for manual, if applicable). Ensure no accessories are running.

2. Enter Service Mode via EPB Switch

Locate the EPB switch. It sits between the front seats, near the center console. On most Genesis models, it is a rocker switch: pulling up applies the parking brake, pushing down releases it.

1. Press and HOLD the EPB switch in the release direction (push down). Keep holding it.
2. While holding the switch, press and HOLD the brake pedal with your left foot.
3. Release the EPB switch (but keep the brake pedal pressed).
4. Press the EPB switch once (pull up, as if applying the brake) while still pressing the brake pedal.
5. Hold that position for about 3 seconds.

What to expect: The EPB indicator light on the dashboard will start flashing (about once per second). You may hear the rear actuators retract. The parking brake will disengage automatically.

3. Verify Service Mode Activation

• The EPB indicator should flash continuously.
• You should be able to spin the rear wheels freely by hand (if the vehicle is lifted).
• The caliper pistons will be fully retracted, making pad removal easy.

If the indicator does not flash, repeat the sequence. Common mistakes include holding the switch too briefly or releasing the brake pedal too early.

4. Perform Rear Brake Service

Now you can safely lift the vehicle, remove the rear wheels, and access the brakes. Jack up the rear and secure it on jack stands. Remove the caliper bolts (usually two 14mm or 17mm bolts) and lift the caliper off. The pads will slide out without resistance.

Important: Do not manually force the EPB actuator. If the pads still seem stuck, re-check that service mode is active. Forcing the actuator can break the motor.

5. Exit Service Mode

After completing the brake work:

1. Reinstall the caliper, pads, and wheels.
2. Lower the vehicle to the ground.
3. Turn the ignition OFF and wait 10 seconds.
4. Start the engine.
5. Press the EPB switch to apply the parking brake (pull up). The system will automatically re-calibrate.
6. Verify the EPB indicator light is solid (not flashing). The brake should engage and hold the vehicle.

Test by shifting into Drive and gently releasing the brake pedal—the car should not roll.

Detailed Troubleshooting Steps

Issue A: Service Mode Won’t Activate

• Check battery voltage. Below 12V can halt the procedure. Charge or jump-start the battery.
• Verify switch orientation. On some Genesis trims, the release direction is pulling up, not pushing down. Try the opposite direction in step 2.
• Clear fault codes first. Use an OBD2 scanner to check for EPB-related codes (C1622, C1623, C1624). Clear them and retry.
• Hold each step longer. A quick tap often fails. Hold the switch for a full 3–4 seconds in each step.
• Try alternate sequence. Some 2015 models require a different pattern: press brake pedal first, then pull EPB switch up and hold, then release. Refer to your owner's manual for the exact method.

Issue B: EPB Re-engages After Service Mode

• System timeout. Service mode automatically exits after 5–10 minutes. Re-enter if you need more time.
• Ignition cycled. Turning the ignition OFF cancels service mode. Keep the ignition ON until the job is done.
• Interference from other controls. Pressing any button on the center console or touching the brake pedal again may exit the mode. Stay still.

Issue C: Brake Pads Still Stuck After Activation

• Manual override. Some rear calipers have a hex or Torx screw on the back. You can turn it to manually retract the piston. Use this only if service mode absolutely failed, as it can damage the actuator if the EPB is still engaged.
• Scan tool forced retraction. If the switch method fails repeatedly, use a dedicated scan tool with EPB service mode (e.g., Autel MaxiCOM, Launch X431, Hyundai GDS). These tools can command retraction directly.

Issue D: Error Codes After Exiting Service Mode

• Re-calibration needed. Drive the vehicle slowly (under 10 mph) and apply the EPB once. The system will often self-clear minor faults.
• Professional reset. If codes persist, a dealer-level scan tool may be required to teach the actuator end positions. Some independent shops with high-end scanners can do this.

Alternative Methods by Model Year and Trim

2009–2014 Hyundai Genesis (First Generation)

These models do not have a switch-based service mode. The EPB system is simpler. To service the rear brakes:

• Manual hex key retraction. Look for an 8mm hex (Allen) socket on the back of the caliper. Turn it clockwise to retract the piston. You may need to first release the EPB via a scan tool or by applying and releasing the switch several times.
• Scan tool method. Use a compatible OBD2 tool with "EPB Maintenance" or "Rear Brake Service" option.

Genesis G80 / G90 (2017+)

The procedure is identical to the 2015–2020 Genesis. However, if your car has a rotary dial shifter, make sure it is in Park. For hybrid models, press the START button twice (Key On) but keep the gear selector in P.

Genesis G70 (2019+)

The EPB switch location may vary. On some G70 models, the switch is near the cup holder on the center console. The sequence remains the same.

Genesis GV80 / GV70 (2021+)

These newer SUVs often require a different procedure. Some models use a 10-second hold of the EPB switch with foot on the brake. Others require a scan tool. Always consult the owner's manual for the exact method.

When to Use a Scan Tool Instead

While the switch method works for most 2015–2020 Genesis owners, a scan tool offers several advantages:

• Faster entry and exit – No need to memorize sequences. Just select "EPB Service Mode" from the menu.
• Troubleshooting – Scan tools read and clear fault codes that block service mode entry.
• Multiple retraction types – Some tools can retract only one side at a time, useful for asymmetric jobs.
• Model-specific quirks – The Genesis G90, for instance, has a "brake pad change" option in the infotainment system. A scan tool bypasses that step.

If you work on multiple vehicles regularly, a mid-range scanner like the Autel AP200 or Launch CRP123X (about $200–$300) pays for itself quickly.

Safety Precautions

• Always use jack stands. Never rely on a hydraulic jack alone. The EPB cannot be trusted during service.
• Do not force the caliper piston. If it resists, re-enter service mode or use a manual retractor tool.
• Wear gloves. Brake dust contains particles that can irritate skin and lungs.
• Disconnect the battery? Not necessary for this procedure, but if you're working near the EPB module, consider disconnecting the negative terminal to prevent accidental activation.

Frequently Asked Questions (FAQ)

1. Can I put my Hyundai Genesis into EPB service mode without a scan tool?

Yes, for most 2015–2020 models you can use the switch sequence described above. For older 2009–2014 models, you'll need a scan tool or manual hex retraction.

2. What does EPB service mode actually do?

It retracts the rear parking brake actuators to their fully released position, allowing the caliper pistons to be pushed back without resistance.

3. How do I know if service mode is active?

The EPB indicator light on the dashboard will flash (usually once per second) while the system is in service mode. You should also be able to spin the rear wheels freely by hand.

4. What if my EPB switch doesn't have a "release" direction?

All Hyundai Genesis EPB switches are rocker-type—one direction applies the brake, the other releases. Consult your owner's manual for the exact orientation. Usually, pulling up applies and pushing down releases.

5. Can I drive with EPB service mode engaged?

No. Service mode is only for stationary brake service. Driving with it active may cause erratic braking or damage the EPB motor.

6. Why does my EPB service mode keep turning off?

The system may time out after a few minutes. Also, turning the ignition off or pressing any other control button can exit service mode.

7. Do I need a specific OBD2 scanner for EPB service?

Not necessarily, but many budget generic scanners lack EPB functions. Tools that support "Electronic Parking Brake Service" (Autel, Launch, Foxwell) work well. Some free smartphone apps may also have an EPB retract option, but reliability varies.

8. What happens if I force the caliper piston while the EPB is still engaged?

You risk damaging the internal worm gear or motor, leading to expensive caliper replacement. Always confirm service mode first.

9. Is the procedure the same for the Genesis GV80 or GV70?

No. The GV80 and GV70 (2021+) often require a scan tool or a different sequence (e.g., holding the EPB switch for 10 seconds with foot on brake). Always check the owner's manual.

10. Where can I find the exact procedure for my 2013 Genesis sedan?

For 2009–2014 Genesis, there is no switch-based service mode. You must manually retract the caliper using an 8mm hex wrench on the back of the caliper (after releasing the EPB with a scan tool).

About the Author: Erwin Salarda is an Automotive Service Equipment Technician based in the Philippines, specializing in computerized automotive diagnostic equipment such as OBD scanners and wheel alignment systems. Since 2012, he has been actively providing technical support, equipment installation, troubleshooting, after-sales service, and hands-on training for automotive service equipment used by workshops and automotive professionals.

He has received specialized training from international suppliers and manufacturers, including Launch X431 in Shenzhen, China, Lawrence Engineering Company in Guangzhou, China, and 3Excel Wheel Alignment Company in Shenzhen, China. Through these trainings, he developed advanced expertise in automotive diagnostics, calibration, wheel alignment systems, and computerized automotive service technologies.

Erwin Salarda provides professional after-sales support and technical training for automotive diagnostic and wheel alignment equipment, helping clients maximize the performance and proper use of their tools and systems. His experience covers equipment setup, software updates, calibration procedures, troubleshooting, and operational guidance for automotive workshops and service centers.

With more than a decade of experience in the automotive equipment industry, Erwin Salarda continues to support automotive businesses by delivering reliable technical expertise and practical training solutions.

For inquiries and equipment purchases, please visit https://carlifterph.com/

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