Emergency Program (Safety Mode)

If a malfunction causes the GS 20 to activate the emergency program, the transmission fault indicator and the Check Engine Light in the instrument cluster both illuminate (CAN signal activation) and electronic control terminates.

The transmission shifts manually in the following sequence:

• For range selector lever positions D, 4, 3 or 2, fifth gear is immediately activated (no electrical control). P, R and N positions operate normally.
• Torque converter lock up clutch is not functional.
• Reverse lock out is also not functional.

If the vehicle is stopped and restarted with this condition, the vehicle drives normally until the condition that initially caused the emergency program activation is once again detected.

If the initial problem was a power down of the GS 20 control module, the transmission will shift manually in the following sequence:

• For range selector lever position D, 4, 3 or 2, fourth gear is immediately selected. P, R and N positions operate normally.
• Torque converter lock up clutch is not functional.
• Reverse lock out is also not functional.