Sunroof does not operate, stuck open - 2006 Lexus RX400h Used Cars

check fuse and relay if good than possible motor ot track problem their should be a mechanical bypass that will let you close it if stuck open the following information is courtesy of monte carlo forum

To check the condition of your original sunroof guides:

1. Gl*** in closed position.
2. Locate & remove 3 torx bolts on each side of sunroof glass. Lift glass out of sunroof opening & set aside in a safe place.
3. Locate "J" shaped cover plate at front of sunroof track assembly. Remove 2 torx bolts from each cover plate.
4. Lift up bracket to remove.
5. Inspect the plastic guides on each side. The sunroof cables attach to guides on front outer corner. Inspect this area closely for damage.
6. Do not operate the sunroof with the J plates removed.

Troubleshooting:

If the sunroof guides are not broken & the glass is a uniform height along the rear edge your problem may be a stripped gear inside the motor. The motor has a manual override:

1. Get access to the motor by removing the map light/switch console or lowering the front of the headliner.
2. Insert a large standard screwdriver into the nylon bushing at the center of the motor hub. Push up & turn the screwdriver to manually move the sunroof glass. If the unit will fully open & close manually, you most likely only need a replacement motor.

If your sunroof is stuck in the open position follow these steps to get it closed:

1. Remove the glass.
2. Try to close the unit without the glass. Many times one side will still be operational and close correctly.
3. Try to slide the inoperable lift arm forward. If it moves, slide it forward until it stops.
4. You now need to slide the original plastic guide forward to lower the arm to the closed position. Using a standard screwdriver, push it forward. The lift arm should begin to lower.
5. If the lift arm will still not fully lower, remove the J plate as explained above, sometimes the sunroof cable will need to be lifted up to allow the guide to fully slide forward.
6. Reinstall glass.

Check the fuse. If that is good then try listening for the motor trying to operate. If you can hear the motor trying to operate then you must have a stuck sunroof.

Hi Thomas , First you should have it diagnosed by someone who has the tool to do so ! upscale scan tool , factory scan tool !
Diagnostic Starting Point - Roof
Begin the diagnosis with the Diagnostic System Check - Power Sunroof . The Diagnostic System Check will provide the following information:
?€¢
The identification of the control modules which command the system

?€¢
The ability of the control modules to communicate through the serial data circuit

?€¢
The identification of any stored DTCs and their status

The use of the Diagnostic System Check will identify the correct procedure for diagnosing the system and where the procedure is located.
Symptoms
When no DTCs ( diagnostic trouble codes ) are present, begin symptom diagnosis by reviewing the Sunroof Description and Operation . Reviewing the Description and Operation information will help you determine the correct symptom diagnostic procedure when a malfunction exists. Reviewing the Description and Operation information will also help you determine if the condition described by the customer is normal operation. Refer to Symptoms - Roof in order to identify the correct procedure for diagnosing the system and where the procedure is located.
Important: If the suspected cause of an inoperative sunroof is a power interruption to the sunroof module, the sunroof must be re-initialized. Refer to Sunroof Motor/Actuator Synchronization .
Important: The following must be completed before using the symptom tables.

1. Perform Diagnostic Starting Point - Roof in order to verify that all of the following are true:
?€¢
There are no DTCs set.



?€¢
The control module(s) can communicate via the serial data link.


2. Review the system operation in order to familiarize yourself with the system functions. Refer to Sunroof Description and Operation .

Visual/Physical Inspection
?€¢
Inspect for aftermarket devices which could affect the operation of the Power Sunroof system. Refer to Checking Aftermarket Accessories in Wiring Systems.

?€¢
Inspect the easily accessible or visible system components for obvious damage or conditions which could cause the symptom.

Intermittent
Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Testing for Intermittent Conditions and Poor Connections in Wiring Systems.
Symptom List
Refer to a symptom diagnostic procedure from the following list in order to diagnose the symptom:
?€¢
Power Sunroof Inoperative

?€¢
Power Sunroof Does Not Open to Express Position

?€¢
Retained Accessory Power (RAP) On After Timeout in Retained Accessory Power, if the power sunroof should operate longer than 20 minutes after the ignition has been turned OFF

This information is right out of GMC service repair manual !
Sunroof Motor/Actuator Synchronization
Synchronization will be necessary anytime the sunroof module battery positive voltage circuit is interrupted. The sunroof module will be synchronized when the controller learns the full vent position. The sunroof system will ignore any open request until the system has been synchronized.
To synchronize the sunroof:

1. Turn ON the ignition, with the engine OFF.
2. Using the close/tilt up portion of the sunroof switch, operate the sunroof glass until it reaches the full vent position.
3. Verify that the system operates normally.

Once the sunroof glass reaches the full vent position, the actual position is stored in the memory of the sunroof module. The sunroof module will stop the motor one motor revolution before the defined actual positions.

might try spraying white lithium grease on the slides and open and close few times my g6 did the same thing grease it and open and closed a few times then it work

If you remove any gear that is coupling it to the motor you should be able to slide it back to where you want. I would put gear back just to hold it in place and keep it from moving. But you do have to replace that gearbox for future operation.

i think it might be the open and close buttom has something wrong or the motor of the sunroof it is better that it is seen by a specialist

If the motor is stuck, you can probably hold the switch to the forward position, and smack the roof. This may allow the motor to start working. I don't think there is any way to do it manually.

The first thing to check is the motor it should be under the interior light for operation and next is the tracking system for the sunroof and try to lubricate it so the roof does not hang up these motors on volvo sunroofs are not that strong and even a stuck gasket around the top can make it stuck beacause of the rubber getting hot from the sun

hello,your sunroof operated with a motor,better to send your car in a dealer,maybe adjustment of railing only,ty

The sunroof continues to open and close normally from front to back, but the vent stays open.