WZHDZ PowerStep Running Boards Instruction Manual

1. Product Overview

The WZHDZ PowerStep Running Boards are designed to provide convenient and safe entry and exit for Lexus NX models from 2015 to 2022. These electric, retractable side steps deploy automatically when a door is opened and retract when closed, offering a seamless user experience. Constructed from high-quality aircraft-grade aluminum, plastic, and stainless steel, they are built for durability and all-weather performance.

Key Features:

• Bearing Capacity: Engineered to support significant weight for passenger safety.
• Enhanced Safety: Features an anti-slip design to minimize accident risks.
• Side Protection: Provides additional protection to the vehicle body against side impacts.
• Anti-Skid Surface: Uneven or textured surface increases friction for secure footing.
• Reduced Entry/Exit Height: Facilitates easier access for children, the elderly, and individuals with physical limitations.

2. Package Contents

Before beginning installation, verify that all components listed below are present and undamaged.

• 2 x Side Steps (Running Boards)
• Mounting Brackets
• Mounting Hardware (Screws, bolts, washers, etc.)
• Wiring Harness
• ECU Control Box
• Installation Instruction Manual (this document)

Image 2.1: Overview of the complete WZHDZ PowerStep Running Board kit, including two running boards, mounting brackets, wiring, ECU control box, and hardware.

Image 2.2: Detailed view of individual components: pedals (running boards), brackets, IPX67 waterproof motor, wiring harness, ECU control box, and mounting screws.

3. Installation Instructions

Professional installation is highly recommended for this product. Incorrect installation may lead to product malfunction or damage to the vehicle. Ensure the vehicle is parked on a level surface, the engine is off, and the parking brake is engaged before starting.

3.1 Pre-Installation Steps

1. Unpack all components and verify against the package contents list.
2. Read through the entire instruction manual before beginning.
3. Gather necessary tools (not included): standard wrench set, socket set, wire cutters/strippers, electrical tape, drill (if required for specific vehicle models).
4. Identify the mounting points on your Lexus NX chassis. These running boards are designed to use existing attachment mounts.

3.2 Mounting Bracket Installation

1. Attach the mounting brackets to the designated points on the vehicle's frame. Ensure proper alignment and orientation for both driver and passenger sides.
2. Securely fasten the brackets using the provided mounting hardware. Do not fully tighten bolts until the running boards are in place.

Image 3.1: Detail of the aluminum manganese integrated support bracket, highlighting the stainless steel shaft for durability and damage-free installation.

3.3 Running Board Attachment

1. Carefully position each running board onto the installed brackets.
2. Align the mounting holes on the running board with the brackets.
3. Secure the running boards to the brackets using the remaining hardware.
4. Once both running boards are loosely attached, adjust their position for optimal fit and appearance.
5. Fully tighten all bolts and nuts, ensuring a secure and stable installation.

Image 3.2: The running board fully installed and deployed, showing its position relative to the vehicle's door.

3.4 Electrical Wiring

This step requires careful attention to vehicle electrical systems. If you are not comfortable with automotive wiring, seek professional assistance.

1. Connect the wiring harness to the ECU control box.
2. Route the wiring harness along the vehicle's frame, securing it with zip ties or clips to prevent snagging or damage.
3. Connect the appropriate wires to the vehicle's door trigger sensors (typically located near the door hinges or interior lighting circuits). Refer to your vehicle's service manual for specific wiring diagrams.
4. Connect the main power and ground wires to the vehicle's battery or a suitable power source, ensuring proper fusing.
5. Mount the ECU control box in a dry, secure location, away from excessive heat or moisture.

Image 3.3: The IPX67 waterproof motor, designed for durability and resistance to water and corrosion, with its specialized wiring clamp.

4. Operation

The WZHDZ PowerStep Running Boards operate automatically based on your vehicle's door activity.

4.1 Automatic Deployment

• When any vehicle door (driver or passenger) is opened, the corresponding running board will automatically deploy to the extended position.
• The deployment process is smooth and quiet, providing a stable step for entry.

4.2 Automatic Retraction

• After all doors are closed, the running boards will automatically retract to their stowed position beneath the vehicle.
• There may be a slight delay (typically a few seconds) before retraction to allow for safe exit.

Image 4.1: The running board in its deployed state, providing a wide and stable step.

Image 4.2: Detail of the running board's 13.6cm widened panel with non-slip engraving, designed for secure footing.

5. Maintenance

Regular maintenance ensures the longevity and proper function of your PowerStep Running Boards.

5.1 Cleaning

• Clean the running board surfaces regularly with mild soap and water to remove dirt, mud, and road grime.
• Avoid using abrasive cleaners or harsh chemicals, as these can damage the finish.
• Rinse thoroughly and dry with a soft cloth.

5.2 Inspection

• Periodically inspect all mounting hardware for tightness. Re-tighten any loose bolts or nuts.
• Check the wiring harness for any signs of wear, fraying, or damage. Ensure all connections are secure.
• Inspect the moving parts of the deployment mechanism for any obstructions or excessive dirt buildup. Clean as necessary.
• Ensure the running boards deploy and retract smoothly without grinding or unusual noises.

6. Troubleshooting

This section addresses common issues you might encounter with your PowerStep Running Boards.

7. Product Specifications

8. Warranty Information

This WZHDZ product is covered by a manufacturer's warranty for a period of 120 Days from the date of purchase. This warranty covers defects in materials and workmanship under normal use. It does not cover damage resulting from improper installation, accident, misuse, abuse, or unauthorized modifications.

For warranty claims, please retain your proof of purchase and contact the seller or manufacturer directly.

9. Customer Support

If you have any questions regarding the installation, operation, or maintenance of your WZHDZ PowerStep Running Boards, please refer to this manual first. For further assistance, technical support, or warranty inquiries, please contact the retailer from whom you purchased the product.

Always provide your product model number (DTB-NX-QH) and proof of purchase when seeking support.