AutoCodes – Chevrolet – B172F 2018 Chevrolet Silverado

B172F 2018 Chevrolet Silverado Code - Driver Seat Cushion Right Rear Haptic Movement

Quick Answer

The safety alert seat provides a vibration in the driver’s seat bottom cushion to alert the driver of a number of concerns. Common causes include Faulty Driver Seat Cushion Right Rear Haptic Movement Motor, Driver Seat Cushion Right Rear Haptic Movement Motor harness is open or shorted, Drivers Seat Cushion Right Rear Haptic Movement Motor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: B172F 2018 Chevrolet Silverado indicates Driver Seat Cushion Right Rear Haptic Movement.
Common causes: Common causes include Faulty Driver Seat Cushion Right Rear Haptic Movement Motor, Driver Seat Cushion Right Rear Haptic Movement Motor harness is open or shorted, Drivers Seat Cushion Right Rear Haptic Movement Motor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 229

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Apr 21, 2023

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code B172F 2018 Chevrolet Silverado Description

The safety alert seat provides a vibration in the driver’s seat bottom cushion to alert the driver of a number of concerns. Two seat haptic movement motors are utilized to create the vibration and are located on the left and right sides of the seat cushion. Utilizing two motors allows the vibration to be localized to the left or right side of the seat, depending on the side of the vehicle generating the alert, or to vibrate both simultaneously.

The Seat Memory Control Module receives serial data messages from other modules and provides voltage to control the seat haptic movement motors. The Seat Memory Control Module will pulse the left, right, or both motors with the number of pulses requested over serial data. The Seat Memory Control Module monitors the control circuits for open, short to ground, and short to voltage conditions and will set Diagnostic Trouble Code (DTC) if a circuit fault is detected.

The seat haptic movement motor is DC motor located in the driver’s seat bottom cushion. Two seat haptic movement motors are used in the seat bottom cushion, positioned on the left and right side. An offset weight is attached to the motor. When activated, the spinning offset weight creates a vibration felt by the driver through the seat cushion.

Each seat haptic movement motor receives a constant chassis ground. The motor is controlled by the Seat Memory Control Module providing voltage through a dedicated control circuit. When an alert is required, the Seat Memory Control Module will apply voltage, activating the seat haptic movement motor.

OBDII Code B172F 2018 Chevrolet Silverado - Driver Seat Cushion Right Rear Haptic Movement - AutoCodes.com — B172F 2018 Chevrolet Silverado Code - Driver Seat Cushion Right Rear Haptic Movement

What does this mean?

What are the Possible Causes of the DTC B172F 2018 Chevrolet Silverado?

Faulty Driver Seat Cushion Right Rear Haptic Movement Motor
Driver Seat Cushion Right Rear Haptic Movement Motor harness is open or shorted
Drivers Seat Cushion Right Rear Haptic Movement Motor circuit poor electrical connection
Faulty Seat Memory Control Module

How to Fix the DTC B172F 2018 Chevrolet Silverado?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Buy the Haptic Motor: https://amzn.to/3H4LF0L

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What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B172F 2018 Chevrolet Silverado code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about B172F 2018 Chevrolet Silverado Code

1. What does OBDII code B172F mean for a 2018 Chevrolet Silverado?

This code indicates a fault related to the driver seat cushion right rear haptic movement system.

2. What are the common symptoms of OBDII code B172F in a 2018 Chevrolet Silverado?

Common symptoms include the loss of haptic feedback or movement in the right rear portion of the driver seat cushion.

3. What are the possible causes of OBDII code B172F in a 2018 Chevrolet Silverado?

Potential causes include a faulty haptic motor, wiring issues, or a malfunction in the control module of the seat cushion system.

4. How can I diagnose the issue related to OBDII code B172F in my 2018 Chevrolet Silverado?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific error code and then inspecting the haptic motor, wiring connections, and control module for any visible damage.

5. Can I still drive my 2018 Chevrolet Silverado with OBDII code B172F present?

It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to ensure the proper functioning of the seat cushion system.

6. How can I repair OBDII code B172F in my 2018 Chevrolet Silverado?

Repair options may include replacing the faulty haptic motor, repairing damaged wiring, or reprogramming the control module to resolve the issue.

7. Is it possible to reset OBDII code B172F in a 2018 Chevrolet Silverado without professional help?

While clearing the code with an OBDII scanner is possible, it is crucial to address the underlying cause to prevent the code from reoccurring.

8. Are there any DIY tips for troubleshooting OBDII code B172F in a 2018 Chevrolet Silverado?

DIY tips include checking the seat cushion connections, ensuring proper power supply to the haptic motor, and inspecting for any visible signs of damage.

9. How much does it typically cost to repair OBDII code B172F in a 2018 Chevrolet Silverado?

The cost of repair can vary depending on the specific cause of the issue, but it may range from a few hundred to a few thousand dollars, including parts and labor.

10. Can OBDII code B172F in a 2018 Chevrolet Silverado affect other vehicle systems?

While this code is specific to the driver seat cushion right rear haptic movement, it is essential to address it promptly to prevent any potential impact on other vehicle systems that may rely on the same control module or wiring.