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Jon
Jon, ASE Certified Technician
Category: Chrysler
Satisfied Customers: 310
Experience:  Master Chrysler Jeep Dodge technician
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We have a 2011 Chrysler 300C. We recently had to replace the

Customer Question

We have a 2011 Chrysler 300C. We recently had to replace the alternator and now our sunroof is all out of wacky. PLEEEEEEEASE help! The sunroof doesn't seal properly and once we manipulate it to seal the sunshade will not close all the way. We think it needs "calibrating?" but no help from the web yet.
Submitted: 1 year ago.
Category: Chrysler
Expert:  Jon replied 1 year ago.

Hi, is it a dual pane or single pane sunroof?

Customer: replied 1 year ago.
Its a dual pane
Expert:  Jon replied 1 year ago.

Ok, give this procedure a shot. If it doesn't take care of your issue, I have a few other procedures.

DUAL PANE SUNROOF OR SUNSHADE OVERRIDE POSITION CALIBRATION

SLIDING GLASS

The sliding glass panel motor stalls when the glass reaches the fully vented position and the electronic motor module learns that position (hard stop), then counts the number of motor rotations to know where the fully closed and fully open positions of the glass are located. The following procedure causes a previously calibrated and properly operating electronic motor module to relearn the fully vented motor stall position.

  1. Be certain electrical system voltage is at or above 12.5 volts.

  2. Be certain the key is in the ignition switch and the switch is in the ON position.

  3. Be certain the power sunshade is open at least beyond the back of the sliding glass panel opening.

  4. Depress and hold the VENT push button of the sunroof switch until the sliding glass panel is in the fully vented position or until the motor will not drive the glass any further towards the fully vented position.

  5. Open the driver side front door.

  6. Turn the ignition switch to the OFF position.

  7. Within 2 seconds, turn the ignition switch back to the ON position.

  8. Within 2 seconds, depress and hold the VENT push button of the sunroof switch for about ten seconds. At the end of ten seconds, the motor will try to drive the sliding glass panel to the fully vented position. Once motor stall is detected the electronic module will write that stall position to memory as the new glass position.

  9. Verify sliding glass panel motor operation by cycling the glass to fully opened, fully closed, fully vented, then fully closed again.

SUNSHADE

The sunshade motor stalls when the shade reaches the fully closed position and the electronic motor module learns that position (hard stop), then counts the number of motor rotations to know where the mid-opened and fully opened positions of the shade are located. The following procedure causes a previously calibrated and properly operating electronic motor module to relearn the fully closed motor stall position.

  1. Be certain electrical system voltage is at or above 12.5 volts.

  2. Be certain the key is in the ignition switch and the switch is in the ON position.

  3. Be certain the sliding glass panel is in the fully closed position.

  4. Depress and hold the CLOSE push button of the sunshade switch until the shade is in the fully closed position or until the motor will not drive the shade any further towards the fully closed position.

  5. Open the driver side front door.

  6. Turn the ignition switch to the OFF position.

  7. Within 2 seconds, turn the ignition switch back to the ON position.

  8. Within 2 seconds, depress and hold the CLOSE push button of the sunshade switch for about ten seconds. At the end of ten seconds, the motor will try to drive the shade to the fully closed position. Once motor stall is detected, the electronic module will write that stall position to memory as the new shade position.

  9. Verify sunshade motor operation by cycling the shade to mid-opened, fully opened, then fully closed again.
Customer: replied 1 year ago.
We have a push button start. So is the "On" position the "ACC" position, or the "Run" position?
Expert:  Jon replied 1 year ago.

Run position. I'd start the engine and do it with the engine running whenever it asks for the on position. That way your battery voltage will definitely be above 12.5 as long as the alternator is working.

Customer: replied 1 year ago.
I'm on the road traveling at the moment. As soon as I can, I'll stop to try your instructions.
Expert:  Jon replied 1 year ago.

Ok, let me know how you make out.

Customer: replied 1 year ago.
That didn't work for us!
Expert:  Jon replied 1 year ago.

Ok,try this one and I have 1 more if this doesn't work.

DUAL PANE SUNROOF

A new motor is shipped uncalibrated with no vehicle cycles having been run. After installation and connection of the wire harness, the following steps must be taken to initialize the new motor and module unit.

NOTE:

Verify that the battery is in good condition prior to performing this procedure. Do not leave the vehicle on a battery charger while performing this procedure. If the voltage at the sunroof motor and module unit drops below 11 volts or exceeds 15 volts at anytime while this procedure is being performed, the motor and module initialization procedure will not be properly completed.

SUNROOF

  1. Turn the ignition switch to the ON position.

  2. Depress and hold the VENT push button of the sunroof switch until the sliding glass panel has moved to the fully vented position.

  3. Be certain that the sunshade has opened to at least beyond the back of the sliding glass panel opening before finishing the sunroof motor and module initialization.

  4. Depress the VENT push button of the sunroof switch and release. The sliding glass panel should travel to the fully vented position.

  5. Depress the CLOSE push button of the sunroof switch and release. The sliding glass panel should travel past the fully closed position, then reverse direction back to fully closed to set the sunroof seal.

  6. Depress the OPEN push button of the sunroof switch and release. The sliding glass panel should travel to the fully opened position.

  7. Depress the CLOSE push button of the sunroof switch and release. The sliding glass panel should travel to the fully closed position.

  8. Repeat Steps 4 through 7 for at least 5 complete sliding glass panel cycles (VENT, CLOSE, OPEN, CLOSE).

SUNSHADE

  1. Turn the ignition switch to the ON position.

  2. Depress and hold the CLOSE push button of the sunroof switch until the sliding sunshade panel has moved to the fully closed position.

  3. Be certain that the sunroof sliding glass panel is in the fully closed position before finishing the sunshade motor and module initialization.

  4. Depress the OPEN push button of the sunshade switch and release. The sunshade panel should travel to the mid-open position at least beyond the back of the sliding glass panel opening.

  5. Depress the OPEN push button of the sunshade switch again and release. The sunshade panel should travel to the fully opened position.

  6. Depress the CLOSE push button of the sunshade switch and release. The sunshade panel should travel to the fully closed position.

  7. Repeat Steps 4 through 6 for at least 5 complete sunshade panel cycles (MID-OPEN, FULL-OPEN, CLOSE).

Customer: replied 1 year ago.
My husband received the last instructions you sent from another mechanic and they didn't work either. (they were for a 2011 Chrysler 300 V6. And we have a 2011 Chrysler 300C V8)
Expert:  Jon replied 1 year ago.

Engine size shouldn't matter regarding the sunroof. Here is the last procedure I have from Chrysler's website. Let me know if this one works.

DUAL PANE SUNROOF OR SUNSHADE OBSTACLE DETECTION UPDATE

The obstacle detection function (also known as Excessive Force Limitation/EFL) updates the sunroof sliding glass panel and sunshade closing profiles after each successful CLOSE event as long as temperature and voltage are within a normal range. Being certain that these parameters are within range and cycling the sliding glass panel and sunshade will update the obstacle detection settings in the electronic module software.

  • Be certain electrical system voltage is at or above 12.5 volts.
  • Be certain vehicle is in an area that is near room temperature - 20 to 25° C (68 to 77° F).
  • Be certain the key is in the ignition switch and the switch is in the ON position.
  • Be certain there are no physical binds or blockages to sliding glass panel or sunshade travel.

SLIDING GLASS

  1. Be certain the power sunshade is in the fully open position.

  2. Depress the VENT push button of the sunroof switch so that the sliding glass panel travels to the fully vented position.

  3. Depress the CLOSE push button of the sunroof switch so that the sliding glass panel travels to the fully closed position.

  4. Depress the OPEN push button of the sunroof switch so that the sliding glass panel travels to the fully opened position.

  5. Depress the CLOSE push button of the sunroof switch so that the sliding glass panel travels to the fully closed position.

  6. Repeat Steps 2 through 5 for at least 5 complete sliding glass panel cycles (VENT, CLOSE, OPEN, CLOSE).

SUNSHADE

  1. Be certain the sunroof sliding glass is in the fully closed position.

  2. Depress the OPEN push button of the sunshade switch so that the shade travels to the mid-open position.

  3. Depress the OPEN push button of the sunshade switch again so that the shade travels to the fully opened position.

  4. Depress the CLOSE push button of the sunshade switch so that the shade travels to the fully closed position.

  5. Repeat Steps 2 through 4 for at least 5 complete sunshade panel cycles (MID-OPEN, FULL-OPEN, CLOSE).
Expert:  Jon replied 1 year ago.

Here is one more for obstacle detection override but it's not really a calibration procedure:

techCONNECT Content

08 - Electrical/8N - Power Systems/Power Top, Sunroof/MOTOR, Sunroof/Standard Procedure

SUNROOF OR SUNSHADE OBSTACLE DETECTION REVERSAL OVERRIDE

SINGLE PANE

There are two methods for overriding the obstacle detection feature if the single pane sunroof sliding glass is unable to close due to a known blockage condition (ice, leaves, debris in track).

OVERRIDE - METHOD 1

Depress and hold the CLOSE push button of the sunroof switch during the close. The sunroof will be in override mode during the close.

OVERRIDE - METHOD 2

Once the sunroof encounters and reverses on an obstacle during express (one touch) closing three consecutive times, the sunroof will be in override mode. All push button commands will be in manual mode (no one-touch or express mode) while the obstacle detection feature is in override mode.

EXITING OVERRIDE MODE

Any sunroof obstacle detection override mode is exited by reaching the close position. Once the override has been exited, all normal operations will resume including the obstacle detection feature.

DUAL PANE

There are two methods for overriding the obstacle detection feature if the dual pane sunroof sliding glass panel or sunshade is unable to close due to a known blockage condition (ice, leaves, debris in track).

OVERRIDE - METHOD 1

Depress and hold the CLOSE push button of the sunroof or sunshade switch during the initial close, during the reversal and for 2 seconds after the reversal stops. If the CLOSE push button is released at any time between the initial close and the end of the 2 seconds after the reversal stops, the sunroof or sunshade will not enter override mode. Once the CLOSE push button has been held through these events, the sunroof or sunshade will be in primary override mode. All CLOSE push button commands will be in manual mode (no one-touch or express mode) while the obstacle detection feature is in primary override mode.

OVERRIDE - METHOD 2

Once the sunroof or sunshade encounters and reverses on an obstacle during closing three consecutive times with no other sunroof or sunshade push button switches being depressed, the fourth time the CLOSE push button is depressed, the sunroof or sunshade will be in override mode. All push button commands will be in manual mode (no one-touch or express mode) while the obstacle detection feature is in override mode.

EXITING OVERRIDE MODE

Any sunroof or sunshade obstacle detection override mode is exited by either reaching the close position or by depressing any sunroof or sunshade switch push button except CLOSE to remove the obstacle. Once the override has been exited, all normal operations will resume including the obstacle detection feature.

Expert:  Jon replied 1 year ago.

If none of these work, let me know.