B172F 2014 GMC Sierra 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 2014 GMC Sierra 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.
Code B172F 2014 GMC Sierra Description
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.
What are the Possible Causes of the DTC B172F 2014 GMC Sierra?
- 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 2014 GMC Sierra?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B172F 2014 GMC Sierra 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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Frequently Asked Questions about B172F 2014 GMC Sierra Code
1. What does OBDII code B172F mean on a 2014 GMC Sierra?
It indicates an issue with the driver seat cushion's right rear haptic motor, which controls vibration feedback for alerts like lane departure warnings.
2. What are the common symptoms of code B172F?
You may notice the driver seat's vibration alerts are weaker, intermittent, or completely non-functional on the right rear side.
3. What causes the B172F code to appear?
It can be triggered by a faulty haptic motor, loose or damaged wiring, poor electrical connections, or a malfunction in the seat module.
4. Can I still drive with the B172F code active?
Yes, the code does not affect drivability but may compromise safety alerts provided by the seat's vibration system.
5. How do I diagnose the B172F code?
Start by inspecting the wiring and connections under the driver seat for damage or corrosion, and use a scan tool to check for additional related codes.
6. How is the B172F code repaired?
Repairs may involve replacing the haptic motor, repairing damaged wiring, or reprogramming the seat control module if necessary.
7. Is the B172F code covered under warranty?
It depends on your vehicle's warranty terms, but issues with safety systems like the haptic motor may be covered under certain conditions.
8. What tools are needed to fix the B172F code?
You'll need a diagnostic scan tool, a multimeter for testing electrical connections, and basic tools to access the seat components.
9. Can I reset the B172F code without repairs?
You can clear the code with a scan tool, but it will likely return if the underlying issue isn’t resolved.
10. How much does it cost to fix the B172F code?
The cost varies depending on whether you need a new haptic motor, wiring repairs, or module reprogramming, typically ranging from $150 to $500.
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