Drivers Power seat will not move and passengers window and both back windows will not operate. Happened at the same time. This is a 2002 XGL350.

Can you control the windows from the drivers seat? Do they operate from the individual seats?
Sounds like the switches may be bad... BUT - CHECK all the fuses...sometimes removing and re-installing the same switches makes the connections fresh again..(I have done this very thing).. and they work

The power windows on your vehicle are controlled by an electronic control module , as are the power mirrors !
Power Window System Components
The power window system consists of the following components:
• Driver door module (DDM)
• Passenger door module (PDM)
• Body control module (BCM)
• LR power window switch
• RR power window switch
• Window up and window down relays in each of the rear passenger window switches
• Window lockout switch
• Reversible power window motors in each of the doors (circuit breaker protected)
• LT DOOR CB 25A (System power for left rear window)
• RT DOOR CB 25A (System power for right rear window)

Your best bet , take your vehicle to a qualified repair shop.

Hi there:
Just two locations there:

Passenger compartment fuse panel
The fuse panel is located on the left hand side of the instrument panel facing the drivers side door.

osition 18 25A - Drivers Unlock Relay, All Unlock Relay, All Lock Relay, Power Seats


Power Distribution box
The power distribution box is located in the engine compartment.

Position 4 30A - Power Windows, Power Moon Roof, Power Seat


Hope this helps, also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

How to diagnose this problem ? Viewing wiring diagrams to see what all is invovled in these electrical circuit's , check power supply's an ground connection's using a DMM - digital multimeter !
What type power seat's ? does it have memory ,heated an cooled etc ?
Power Seats System Description and Operation
There are 2 options of power seat systems available in full size trucks. The first is 6 way driver and passenger power seats without memory. The second is an 8-way driver seat plus 4-way lumbar with memory, heat and optional cool function. While the passenger has 8-way power seats with heat and optional cool function. For the driver memory seat operation, refer to Memory Seats Description and Operation. Power seats without memory are completely controlled through the power seat switch. Battery voltage is supplied to the power seat switch through the power seat circuit breaker. While the seat adjuster switches are in an inactive state the switch contacts are closed to the power seat switch ground circuit. When a power seat switch is pressed to an active state the switch contact is closed to the battery voltage supply circuit. Each seat adjuster motor is controlled by the power seat switch through 2 motor control circuits. The seat adjuster motors are bidirectional and the direction of adjuster motor rotation is determined by which of the adjuster motor control circuits is switched to battery voltage while the other remains grounded.

If it has memory seat's there is a control module !
Battery voltage is supplied to the driver seat module through a 25 A circuit breaker. The driver seat module supplies the seat adjuster switch assembly with a battery positive reference voltage. While the seat adjuster switches are in an inactive state the switch contacts are closed to the adjuster switch common circuit.
Both right side windows have a seperate power supply from the left side window's ,has RT DOORS circuit breaker CB1 - 25amp. location left instrument panel fuse block . Circuit breaker's very rarely fail .Do the door lock's work on that side of the vehicle ? The windows won't work with their own switche's ?
The DDS controls the passenger window through a GMLAN message to the PDS. When a power window switch is activated in the up or down positions the PDS supplies power and ground to the window motor control circuits to drive the window motor in the required direction. Prior to activating a power window motor the PDS will supply the control circuit with a low current bias voltage in order to determine that a short to ground condition does not exist, and during window motor operation the PDS continues to monitor the motor current to verify proper window motor operation. (Scan tool support is available for this system)
Check PDM fuse 4 15 amp ,this supply's B+ voltage to the DOORLOCK/WINDOW switch passenger side . Check for broken wires inside the flex boot from the body to the passenger door .

Power Windows Operation
The vehicle is equipped with power windows controlled by the door modules. Each passenger door power window can be operated, either from a switch built into the driver door switch assembly (DDSA), or from a switch mounted locally on its associated door. The driver door power window can only be operated from the switch built into the DDSA.
If the driver door module (DDM) receives a window switch request from any of the window switches built into the DDSA, the DDM checks the Class 2 serial data to see if conditions are correct (i.e. ignition switch position) to permit window operation to occur. If conditions are correct, the DDM, either supplies power and ground to its associated window motor, or sends a command via the power door serial data line to the passenger door module controlling the window. The passenger door module controlling the window then supplies power and ground to its associated window motor to move the window as requested.
When one of the local window switches mounted on one of the passenger doors is operated, the associated passenger door module examines the request and checks to see if there are any messages from the DDM prohibiting the window operation. If conditions are correct, and no prohibitive messages have been received from the DDM, the associated passenger door module then supplies power and ground to its associated window motor to move the window as requested.


Class 2 data network wires under the carpet behind driver seat. Water shorts out the network an and it won't work .
your looking for tan/white wire's and a connector . This is where the problem is .

Fig. Front Window Controls-4 Door(c) (2002)




Fig. Power, Ground and Window Controls-4 Door(c) (2002)

Hope this help (reemmber rated this post).

sounds like your wendow regulator is going out

REMOVE THE DOOR PANEL TO GET TO THE WINDOW MOTOR. REMOVE THE CONNECTOR ON THE MOTOR. LOOP A TEST LIGHT FROM BOTH TERMINALS. WITH THE KEY ON AND BOTH SWITCHES IN PLACE, CHECK TO OPERATION OF THE SWITCHES. IF THE LIGHT COMES ON IN BOTH DIRECTION THE WINDOW MOTOR IS BAD.

THERE IS A CIRCUIT BREAKER BUILT INTO THE WINDOW MOTOR. SOMETIME HITTING THE MOTOR WITH MAKE THE CIRCUIT BREAKER RESET BUT THE MOTOR WONT LAST LONG DOING THAT.

ALSO TRY PULLING DOWN ON THE WINDOW WHILE TRYING THE SWITCHES. THE WINDOW COULD JUST BE STUCK. THIS HAPPENED TO ME.

the fuses when you open up the drivers side door towards the top there should be a panel that you can remove to find the fuses but it may also be a relay that has gone bad in the engine compartment fuses and relay bay or the switch for the windows has gone bad try the driver side switch if it doesnt work try  the switchs for the individual windows on there doors.

Hopefully by now you have resolved your problem but my truck had that problem and I had to replace the motor for the window controls.