1. Introduction
Welcome to the instruction manual for your UDIRC UD1201Pro M12 1/12 Scale High-Speed Brushless Off-Road RC Car. This manual provides essential information for the safe operation, maintenance, and optimal performance of your new remote control vehicle. Please read it thoroughly before first use.
2. Safety Information
⚠️ WARNING: Not suitable for children under 36 months due to small parts and potential choking hazards.
- Always operate the RC car in open areas, away from people, pets, and obstacles.
- Do not operate near water or in wet conditions unless the product is specifically rated as waterproof.
- Keep hands, hair, and loose clothing away from moving parts.
- Ensure batteries are correctly installed and charged according to manufacturer guidelines.
- Never leave charging batteries unattended.
- Store the RC car and its components in a cool, dry place when not in use.
- Adult supervision is recommended for users under 14 years of age.
3. Package Contents
Upon opening the box, please verify that all the following items are included:
- 1x UDIRC UD1201Pro M12 RC Car (RTR version includes pre-installed motor, ESC, and steering servo)
- 1x Remote Controller (Dumbo Remote Control suit)
- 1x Operating Instructions Manual (this document)
- Original Box
Note: Batteries are not included and must be purchased separately.
4. Specifications
The UDIRC UD1201Pro M12 is a 1:12 scale high-performance desert truck. Key specifications are detailed below:
| Feature | Specification (RTR version) |
|---|---|
| Model Number | UD1201PRO M12 |
| Scale | 1:12 |
| Dimensions (L x W x H) | 408 x 283 x 175 mm |
| Wheelbase | 245 mm |
| Tire Track | 230 mm |
| Ground Clearance | 40 mm |
| Tire Diameter | 110 mm |
| Tire Width | 55 mm |
| Adapter | 12 mm |
| Motor | 3660-3300KV Brushless Motor |
| Electronic Governor (ESC) | 60A Brushless Electric Adjustable |
| Steering Servo | 15KG Standard Steering Gear |
| Remote Control | Dumbo Remote Control Suit (Yes) |
| Control Channels | 6 channels |
| Controller Mode | MODE1, MODE2 |
| Remote Distance | 100m |
| Run Time | About 30 minutes |
| Material | Plastic, Metal |
| State of Assembly | Ready-to-Go |
| Recommended Age | 14+ years |

5. Initial Setup
Follow these steps to prepare your RC car for its first run:
- Install Batteries:
- Open the battery compartment on the RC car.
- Insert the recommended battery pack (not included) ensuring correct polarity. Secure the battery compartment.
- Open the battery compartment on the remote controller.
- Insert the required batteries (e.g., AA batteries, not included) ensuring correct polarity. Close the compartment.
- Power On Sequence:
- First, turn on the remote controller.
- Next, turn on the RC car. The car and controller should automatically pair.
- Pre-Drive Check:
- Check that the steering responds correctly to the remote controller inputs (left/right).
- Verify that the throttle responds correctly (forward/reverse).
- Inspect all wheels and suspension components for any visible damage or loose parts.


6. Operation
Your UDIRC UD1201Pro M12 is designed for high-speed off-road performance. Familiarize yourself with the remote controller and practice in an open, safe environment.
6.1 Remote Controller Functions
- Steering Wheel: Controls left and right direction.
- Throttle Trigger: Pull to move forward, push to reverse/brake.
- Trim Adjustments: Fine-tune steering and throttle to ensure the car drives straight and stops when the trigger is neutral.
- Mode Selection: The remote supports MODE1 and MODE2 for different control preferences. Refer to the remote controller's specific manual for details on switching modes.
6.2 Driving Tips
- Start with slow speeds to get a feel for the controls.
- Avoid sudden turns at high speeds to prevent rollovers.
- The car features LED lights for enhanced visibility, especially in low-light conditions.
- The new lifting wheel helps avoid somersaults during aggressive driving.


7. Maintenance
Regular maintenance will extend the lifespan and performance of your RC car.
- Cleaning: After each use, especially in dirty or dusty conditions, clean the car with a soft brush or compressed air. Avoid using water directly on electronic components.
- Lubrication: Periodically check and lubricate moving parts such as universal joints and differentials. The factory pre-installed steel universal joints are heat-treated and blackened for rust prevention.
- Inspections: Regularly inspect for loose screws, damaged parts, or worn tires. Replace any damaged components promptly.
- Battery Care: Always disconnect and remove batteries when the car is not in use. Store batteries in a safe, cool, dry place.





8. Troubleshooting
Here are some common issues and their potential solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Car does not respond | Low battery in car or remote; not paired; power switch off. | Charge/replace batteries; ensure car and remote are both on and paired. |
| Poor range or interference | Obstacles; other radio signals; low remote battery. | Move to an open area; check remote battery; avoid areas with strong interference. |
| Car pulls to one side | Steering trim not adjusted; damaged steering components. | Adjust steering trim on the remote; inspect steering linkage and servo for damage. |
| Reduced speed/power | Low car battery; motor/ESC overheating; debris in drivetrain. | Recharge car battery; allow components to cool; clean drivetrain. |
9. User Tips
- For optimal performance, ensure your batteries are fully charged before each use.
- Consider purchasing spare batteries to extend playtime.
- Practice in a large, open space to master control before attempting advanced maneuvers.
- Regularly check for loose screws, especially after high-impact driving, to prevent parts from falling off.
- The brushless motor and ESC are powerful; use caution when operating at high speeds.
10. Warranty and Support
For warranty information, technical support, or replacement parts, please contact the retailer or manufacturer directly. Keep your proof of purchase for any warranty claims.
This product is manufactured in Mainland China.





