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NHTSA ID Number: 10162104
Manufacturer Communication Number: PIT5659C
Summary
This Preliminary information communicates that a vehicle may be brought to the dealer with a complaint that the driver’s side power seat will not move at times. The dealer technician may find a code B3920. The technician is instructed to inspect the seat harness beneath the driver’s seat for being pinched between the memory seat module bracket and the seat frame tube. If damage is found to the harness the technician is instructed to repair or replace the harness as needed and reroute it to avoid future damage to the harness.
1 Affected Product
Vehicle
| CHEVROLET | BLAZER | 2019 |
SEOCONTENT-START
Bulletin No.: PIT5659C
Published date: 06/3/2019
Preliminary Information
PIT5659C Driver Side Power Seat Inoperative
Product Investigation Review Required
Models
| Brand: | Model: | Model Years: | VIN: | Engine: | Transmissions: | |
| from | to | |||||
| Chevrolet | Blazer | 2019 | All | All | All | All |
| Involved Region or Country | North America |
| Additional Options (RPO) | AAB |
| Condition | A vehicle may arrive at the dealer with a complaint that the driver’s side power seat will not move at times. Upon checking for codes a B3920 may be found. |
| Cause | The wire harness may be incorrectly routed below the seat frame tube and pinched between the memory seat module bracket and the seat cushion frame tube. |
Correction:
Inspect the seat harness for being routed below the seat frame tube instead of above it.
The harness can be seen by looking in from the front of the seat with the seat in a raised position.
- Seat Frame Tube
- Harness routed below seat frame tube allowing contact with MSM bracket
- Proper routing of harness above seat frame
If the harness is found to be routed below the seat frame tube inspect it for being pinched between the memory seat module bracket and the seat frame tube as shown below.
Unbolt the seat and flip it up to gain access.
Repair or replace the seat harness as needed.
Re-route the harness above the seat frame tube so that it will not become pinched or damaged.
See photo below showing harness properly routed above the seat frame tube.
If the harness is found to be routed properly follow SI for diagnosis of concern.
This PI may be converted to a Bulletin in the future if new information becomes available.
Warranty Information
For vehicles repaired under the Bumper-to-Bumper coverage (Canada Base Warranty coverage), use the following labor operation. Reference the Applicable Warranties section of Investigate Vehicle History (IVH) for coverage information.
| Labor Operation | Description | Labor Time |
| 7013300 | Front Seat Wiring Harness Inspection and repair or replace | ST |
Version History
| Version | 4 |
| Modified | 03/05/2019 – Created on.
03/06/2019 – Updated Correction Section 04/01/2019- Updated to add photo of correct harness routing and added information concerning X500. 06/3/2019- Removed information in Title and Condition for seat movement unwanted and removed information concerning X500 |
SEOCONTENT-END
Bulletin No.: PIT5659C
Published date: 06/3/2019
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