How To Reset Ram Park Assist Sensor

  How To Reset Ram Park Assist Sensor


 How To Reset Ram Park Assist Sensor: Ram trucks, renowned for their rugged performance and advanced features, often come equipped with a sophisticated Park Assist Sensor system to aid drivers during parking and low-speed maneuvers. While these sensors enhance safety and convenience, occasional issues such as false alerts, sensor malfunctions, or system glitches may necessitate a reset. Resetting the Ram Park Assist Sensor is a valuable skill that allows owners to troubleshoot problems and restore optimal functionality. In this guide, we will explore the step-by-step process of how to reset the Park Assist Sensor in Ram trucks effectively.

Ram trucks have earned a reputation for their robust capability and innovative features, including the Park Assist Sensor system, which employs ultrasonic technology to detect obstacles and provide real-time feedback to the driver. These sensors are invaluable in helping drivers navigate tight parking spots and avoid collisions. However, like any advanced technology, they may encounter occasional issues that require attention.

This guide will delve into the reasons behind resetting the Park Assist Sensor system, the step-by-step process to perform the reset, and troubleshooting tips to address common sensor-related problems. Whether you’re an experienced Ram truck owner or a new driver seeking to optimize your vehicle’s safety features, understanding how to reset the Park Sensors is a valuable skill that ensures your Ram continues to deliver a safe and hassle-free driving experience.

How do you calibrate a rear parking sensor?

Make sure that the sensors of reverse parking are placed in a correct spot just in the middle of the bumper and ensure that they are not turning up or downward. If you found that the bumper is facing downward more than eight degrees then you need to compensate it with an angled sensor.

Access Calibration Mode:

Turn the ignition key to the “On” position without starting the engine, or if your vehicle has a push-button start, press the brake pedal and push the “Start” button without starting the engine.

Locate the button or control that allows you to access the calibration or sensor settings. This may be labeled “Park Assist,” “Parking Sensors,” or something similar. Refer to your owner’s manual if you’re unsure.

Enter Calibration Mode:

Follow the instructions in your owner’s manual to enter the calibration mode. This may involve pressing and holding a specific button or combination of buttons for a certain duration.

Follow Calibration Instructions:

Once in calibration mode, the vehicle’s display screen or infotainment system may provide instructions on what to do next.

Calibration often involves driving the vehicle at specific speeds or distances while the sensors recalibrate. This may include slowly backing up and then driving forward.

Some vehicles may require you to park near a wall or obstacle during calibration to ensure accurate readings.

Complete Calibration:

Follow the on-screen or audible prompts to complete the calibration process. This may take a few minutes.

Can you reset sensors?

To reset a sensor, turn the device over and look for the circle on the back labeled “RESET” (See photo below). Insert a paperclip or other thin wire through the label to make a hole, and depress the reset button. You’ll feel it ‘click’ when it is depressed (you should not have to press very hard).

Using an OBD-II Scanner:

  1. Obtain an OBD-II scanner or code reader. These devices are readily available at auto parts stores, online retailers, or through mechanics.
  2. Locate the vehicle’s OBD-II port, usually found under the dashboard near the driver’s seat.
  3. Plug the OBD-II scanner into the OBD-II port.
  4. Turn the vehicle’s ignition key to the “On” position without starting the engine or, if your vehicle has a push-button start, press the brake pedal and push the “Start” button without starting the engine.
  5. Follow the scanner’s instructions to establish a connection with the vehicle’s ECU.
  6. Once connected, navigate the scanner’s menu to read and clear DTCs. Select the option to clear DTCs or reset the system.
  7. Confirm the action when prompted by the scanner.
  8. Wait for the scanner to clear the DTCs and reset the sensor or system.
  9. Disconnect the OBD-II scanner from the vehicle.
  10. Turn off the vehicle’s ignition and then restart it to check if the sensor issue has been resolved.

Can parking sensors be recalibrated?

Calibration or aiming may need to be done after removal of the bumper cover, removal of the sensor, or an impact on or near the sensor. Most OEMs do not require a calibration but call for a system test after installation. These tests may use a scan tool along with other special tools.

Sensor Replacement: When a parking sensor is replaced due to damage or malfunction, recalibration is typically required. The new sensor must be calibrated to work in harmony with the existing sensor system.

Vehicle Alignment or Repairs: Significant changes to the vehicle’s alignment, such as after a collision repair or suspension work, can affect the accuracy of parking sensors. Recalibration helps ensure that the sensors provide accurate readings relative to the vehicle’s new alignment.

Sensor System Adjustment: Some parking sensor systems allow for user-adjustable settings, such as sensitivity or detection range. Recalibration may be necessary if you’ve made adjustments and want to return the system to its default or desired settings.

Sensor Misalignment: If a sensor becomes misaligned or displaced from its original position on the bumper or body of the vehicle, recalibration is needed to reestablish proper sensor positioning.

Software Updates: In some cases, recalibration may be part of a software update for the vehicle’s sensor system. Software updates can improve sensor performance and accuracy.

Does Ram have parking assist?

The ParkSense Rear Park Assist System is a valuable safety addition to your Chrysler, Dodge, Jeep or Ram.

Rear Park Assist: This feature uses sensors located in the rear bumper to detect obstacles behind the vehicle while in reverse. When an obstacle is detected, the system provides audible warnings that increase in frequency as the vehicle gets closer to the obstacle. Some systems also offer visual indicators on the dashboard or infotainment screen.

Front Park Assist: In addition to rear park assist, some Ram trucks are equipped with front park assist sensors, which provide similar warnings for obstacles in front of the vehicle. Front park assist is particularly useful for maneuvering in tight spaces and avoiding front-end collisions while parking.

Parallel and Perpendicular Parking Assistance: Some advanced versions of ParkSense offer automated parking assistance for parallel and perpendicular parking. The system can take over steering control to help the driver park the vehicle accurately.

ParkSense Display: The system may include a display on the vehicle’s infotainment screen, showing a visual representation of the vehicle and the detected obstacles, making it easier for drivers to gauge their proximity to objects.

On/Off Controls: Ram vehicles equipped with ParkSense typically allow drivers to enable or disable the system as needed, such as when towing a trailer or in specific driving conditions where sensor alerts may not be required.

Why is my park assist disabled?

Hello – most often, this message appears when something blocks the rear parking assist sensors on the rear bumper (dirt, snow, bumper stickers, trailer towing gear, etc.). Wipe off the sensors with a damp or soapy paper towel, drive forward 15-20 mph a short distance, and the message should go away.

Manual Deactivation: Many park assist systems can be manually turned on or off by the driver. Check your vehicle’s owner’s manual for instructions on how to enable or disable the park assist system using the controls or buttons provided on the dashboard or infotainment system.

Vehicle Speed: Park assist systems are typically designed to work at low speeds, particularly when parking or maneuvering in tight spaces. If you’re driving at higher speeds, the system may automatically disable itself to prevent unnecessary alerts.

Towing or Hauling: Some vehicles have a feature that automatically disables the park assist system when a trailer is attached or when towing or hauling heavy loads. This prevents false alerts caused by the presence of the trailer.

Obstructed Sensors: If the sensors are dirty, covered in snow or ice, or blocked by debris, they may not function correctly. Ensure that the sensors are clean and free from obstructions.

Sensor Malfunction: Like any electronic system, park assist sensors can malfunction or develop faults. If a sensor is damaged or not working correctly, it may cause the system to disable itself to prevent false alerts or errors.

Can parking sensors be repaired?

Damaged sensors are typically replaced and may require painting to match the vehicle. Vehicle makers often provide information on the painting of new sensors.

Dirty or Obstructed Sensors: If the sensors are dirty or covered in debris, they can provide inaccurate readings or fail to function correctly. In such cases, a simple cleaning of the sensors can often resolve the issue. Cleaning can typically be done using a soft, damp cloth or a sensor-safe cleaning solution.

Wiring or Electrical Issues: Parking sensors are connected to the vehicle’s electrical system, and problems with wiring, connectors, or electrical components can affect their operation. Repairing or replacing damaged wiring, connectors, or components can often resolve these issues.

Sensor Damage: If a parking sensor is physically damaged, such as by impact or collision, it may need to be replaced. However, if the damage is minor and limited to the sensor’s housing, it may be possible to repair or replace the damaged housing while retaining the sensor itself.

Sensor Calibration: Some issues with parking sensors can be resolved through sensor calibration. Calibration procedures can help ensure that the sensors provide accurate readings and alerts. Calibration may be necessary after sensor replacement or certain repairs.

Software Updates: Occasionally, issues with parking sensor systems can be related to software glitches. In such cases, a software update or reprogramming may be required to correct the problem.

What happens if a sensor is not calibrated?

Failure to calibrate a sensor when necessary can result in faulty information that will cause ADAS to operate improperly or not at all. Faulty sensor input can cause: A warning light or message on the instrument panel.

Inaccurate Readings: Sensor readings may become inaccurate and unreliable. This can lead to false alarms or, more critically, a failure to detect actual obstacles or hazards. In the case of parking sensors, inaccurate readings could result in the vehicle colliding with obstacles during parking or low-speed maneuvers.

Safety Concerns: Inaccurate sensor readings can pose safety risks, especially when sensors are used in safety-critical systems like advanced driver assistance systems (ADAS). For example, if sensors in an adaptive cruise control system are not properly calibrated, the vehicle may not maintain a safe following distance from the vehicle ahead.

False Alerts: Sensors may generate unnecessary alerts or warnings when no actual threat or obstacle is present. This can be annoying and distracting for the driver and may lead to a loss of confidence in the sensor system.

Reduced Effectiveness: The sensor system’s overall effectiveness is compromised when sensors are not calibrated. Drivers may become less reliant on the system, defeating the purpose of having it in the first place.

Decreased Efficiency: Inefficiencies in sensor systems can result in wasted energy and resources. For example, in industrial applications, improperly calibrated sensors may trigger unnecessary processes or consume excess power.

How long does it take for sensors to reset?

The car’s internal computer only resets after a set period where it checks all of its sensors once more. The reset can happen automatically after around 10 to 20 cycles. A cycle is a phase where you turn on the car and turn it off again. For other vehicles, you’ll have to drive around 50 to 100 miles before it resets.

Sensor Type: Different types of sensors in vehicles and other systems may have varying reset times. For example, resetting a simple temperature sensor may be nearly instantaneous, while resetting more complex sensors in advanced driver assistance systems (ADAS) could take longer.

System Complexity: The complexity of the sensor system and the number of sensors involved can influence reset times. Systems with multiple sensors may take longer to reset as each sensor goes through the calibration or initialization process.

Manual vs. Automatic: Some sensors can be manually reset by the user, while others may reset automatically. Manual resets are typically faster, as the user can initiate the process, while automatic resets occur as part of the sensor’s built-in functionality and may take longer.

Calibration Process: If the reset involves a calibration process, the time can vary depending on the complexity of the calibration procedure. Calibrating sensors may involve specific movements, measurements, or tests that can take minutes or more.

Sensor Health: The condition of the sensor can also impact reset times. If a sensor is malfunctioning or has hardware issues, it may take longer to reset or may not reset at all until the underlying issues are resolved.

 How To Reset Ram Park Assist Sensor


Resetting the Park Assist Sensor in your Ram truck is a practical skill that empowers you to address sensor-related issues and maintain the optimal performance of this valuable safety feature. 

In this guide, we’ve provided a comprehensive overview of why a reset might be necessary, the step-by-step process to perform the reset, and troubleshooting tips for common sensor-related problems. By following the instructions outlined in this guide and utilizing the troubleshooting techniques provided, you can confidently address sensor errors, false alerts, and system glitches, ensuring that your Ram’s Park Assist Sensor system continues to enhance your driving experience. 

Whether you’re an experienced Ram owner or new to the world of advanced automotive technologies, the ability to reset the Park Assist Sensors equips you with the knowledge and skills to keep your Ram operating at its best, making every parking maneuver safer and more convenient.

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