Seat Track: Service and Repair
SEAT TRACKSpecial Tool(s):
Special Tool(s)
Removal and Installation
WARNING:
- The safety belt pretensioner is a pyrotechnic device. Never probe a pretensioner electrical connector. Doing so could result in pretensioner or air bag deployment and could result in personal injury.
- Never probe the connectors on the air bag module. Doing so can result in air bag deployment, which can result in personal injury.
- To reduce the risk of personal injury, do not use any memory saver devices.
NOTE:
- If a seat equipped with a supplemental restraint system (SRS) component is being serviced, the SRS must be depowered.
- The air bag warning lamp illuminates when the RCM fuse is removed and the ignition switch is ON. This is normal operation and does not indicate a supplemental restraint system (SRS) fault.
- The SRS must be fully operational and free of faults before releasing the vehicle to the customer.
- Driver seat shown, passenger seat similar.
All seats
1. Remove the affected seat and depower the SRS.
2. Release the recliner handle cover tab and remove the handle.
3. Remove the LH side shield screw from behind the recliner handle.
4. Remove the front and rear LH side shield screws, disconnect the seat control switch (if equipped) and remove the LH side shield.
5. Remove the 2 RH side shield screws and remove the RH side shield.
6. If equipped, disconnect and detach the seat side air bag connector and route through the seat cushion frame for backrest removal, noting the routing for installation.
Climate controlled seats
7. Detach and disconnect the backrest thermo-electric device (TED) electrical connector and disconnect the backrest climate controlled seat duct from the climate controlled blower for backrest removal.
Memory seats
8. Disconnect the 3 memory seat motor position sensor electrical connectors and release any pin-type retainers attached to the seat cushion pan.
Heated seats
9. NOTE: Disconnect and release any remaining electrical connectors and pin-type retainers attached to the seat cushion and frame assembly.
Disconnect the 2 cushion heater mat electrical connectors from the backrest heater mat.
Manual seats
10. Disconnect the safety belt buckle pretensioner electrical connectors.
11. Remove the bolt and the safety belt buckle pretensioner.
- To install, tighten to 40 Nm (30 lb-ft).
12. Remove the 3 backrest-to-seat track bolts and remove the seat backrest from the seat.
- To install, tighten to 58 Nm (43 lb-ft).
Power seats
13. Remove the 4 backrest-to-seat track bolts and remove the seat backrest from the seat.
- To install, tighten to 58 Nm (43 lb-ft).
All seats
14. NOTE: Disconnect and release any remaining electrical connectors and pin-type retainers necessary to separate the seat cushion pan from the seat track and riser.
Remove the 4 seat track-to-seat cushion frame bolts and remove the seat cushion.
- To install, tighten to 25 Nm (18 lb-ft).
15. To install, reverse the removal procedure.
16. Install the affected seat and repower the SRS. Do not prove out the SRS at this time.
Passenger seats
17. CAUTION:
- There are 3 occupant classification sensor (OCS) system service kits available for this vehicle (base seat, heated seat and climate controlled seat). Always make sure the correct OCS service kit is installed.
- It is necessary to rezero the OCS system when a front passenger seat cushion is disassembled, a new trim cover installed, a seat side shield removed or an OCS service kit is installed. A diagnostic tool is used to trigger the active command to carry out rezeroing of the OCS system.
- Make sure the seat is completely assembled before rezeroing.
- The following precautions must be taken before rezeroing the OCS system:
- Make sure the OCS system components are connected and no faults are present.
- Make sure the OCS system is not at a temperature below 0°C (32°F) or above 45°C (113°F) when initiating the rezeroing process. If the vehicle has been exposed to extreme cold or hot temperatures, the vehicle must be exposed and kept at a temperature within the limits, 0°C to 45°C (32°F to 113°F) for a minimum of 30 minutes.
- Make sure nothing is present on the passenger seat before rezeroing and nothing is placed on the seat during the rezeroing process.
- Make sure a minimum 8 second time period has passed after cycling the ignition switch ON before the rezeroing process.
NOTE:
- For best results in rezeroing, the OCS system should be at or near room temperature, 10°C to 29°C (50°F to 85°F).
- The heater mat on the front passenger seat cushion is not serviceable separately. If a new heater mat is needed on the front passenger seat cushion a new occupant classification sensor (OCS) service kit, equipped with a heater mat, must be installed.
- If the first attempt to rezero the OCS system is unsuccessful, a second attempt must be made.
Rezero the occupant classification sensor.
- With the front passenger seat empty, use a diagnostic tool to trigger the active command and rezero the occupant classification sensor.
18. NOTE: The ignition switch must be cycled after rezeroing the OCS system.
Cycle the ignition switch from ON to OFF.
All seats
19. Prove out the supplemental restraint system (SRS) as follows:
Turn the ignition key from ON to OFF. Wait 10 seconds, then turn the key back to ON and visually monitor the air bag indicator with the air bag modules installed. The air bag indicator will light continuously for approximately 6 seconds and then turn off. If an air bag supplemental restraint system (SRS) fault is present, the air bag indicator will:
- fail to light.
- remain lit continuously.
- flash.
The flashing might not occur until approximately 30 seconds after the ignition switch has been turned from the OFF to the ON position. This is the time required for the restraints control module (RCM) to complete the testing of the SRS. If the air bag indicator is inoperative and a SRS fault exists, a chime will sound in a pattern of 5 sets of 5 beeps. If this occurs, the air bag indicator and any SRS fault discovered must be diagnosed and repaired.
Clear all continuous DTCs from the restraints control module using a diagnostic tool.