Fleet Key Option - Adding Keys - keywords 6E2 6E8 circle code deterrent enforcement law lock module plus police TDM theft

This PI was superseded to update models and model years. Please discard PIT4376.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Key and Theft Information for Fleet Vehicles equipped with RPO 6E2 or 6E8.

Vehicle Fleet Mode

Fleet vehicles with RPO 6E2 or 6E8 should be checked to verify that the TDM is in fleet mode prior to attempting to add keys. The parameter that shows "Fleet Vehicle" must say "yes" other wise the vehicle will act as any other non-fleet vehicle. If the Fleet Vehicle is "Yes" follow the information below for additional information for adding keys, if the Fleet Vehicle is "No" refer to the directions below for "Converting a vehicle to a fleet vehicle".

Note about Adding Keys:: After confirming the vehicle is a fleet vehicle, any number of keys may be added to suit the customer's needs. The new keys must be NEW BLANK KEYS with a "circle plus" on the shank of the key. These new keys only need to be learned to 1 vehicle in the fleet in order to start all vehicles within the fleet that have the same RPO 6E2 or 6E8.

Learning new keys - follow steps 1-3 below:

1. Use the original key that starts the vehicle to turn the ignition to run and then to off.
2. Within 10 seconds of turning to off, insert the new Blank Key and turn the ignition to run. Leave the ignition in run for 5 seconds and then turn off and remove the key.
3. The new key should be capable of starting all vehicles in the Fleet.

Troubleshooting learning new keys:

For problems with learning new keys, use the Tech 2 to navigate to the the TDM Learn Key Data to check the additional parameter items "Transponder Key" and "Valid Key" as shown in steps A and B below:

A) Transponder Key Parameter:

Insert the new blank key into the ignition and turn to run. If the key is communicating with the vehicle the parameter "Transponder Key" will transition to "Present". If this parameter is showing "Not Present" the wrong type of key or a bad key may be the cause. Attempt to learn a new blank circle plus key.

If the "Transponder Key" parameter shows "Present" but the new key is not starting the vehicle, Follow the instructions in section B to check the parameter "Valid Key".

B) Valid Key Parameter:

If the "Valid Key" parameter says "NO" then attempt to learn the key using the adding keys method discussed above. After performing the learn procedure, check the Valid Key parameter again. If the parameter transitioned to "Yes" the key should now start the vehicle. If the parameter stays "No" after performing the learn procedure, dispose of the key and try a new one as it may have been learned to a different vehicle. After learning the new keys, use the scan tool to clear all DTCs.

Converting a vehicle to a Fleet Vehicle:

If you are referencing this document you should have determined that the vehicle you are working on was configured incorrectly and the "Fleet Status" IS NOT "Active" in the Theft Deterrent Module. To confirm the vehicle is not a fleet vehicle, check the parameter under "Theft Deterrent module Learn Key Data" for Fleet Vehicle status. Follow this process only if the fleet status states "No" and the customer wants this vehicle converted "Fleet Status" and the vehicle has RPOs 6E2 or 6E8.

Note: Before performing this procedure you will need to ensure that you have the correct Blank Fleet Key that is precut to match the vehicle based on RPO, please see the GM part numbers below to ensure correct useage:

15926907 for 6E2

15926908 for 6E8

Perform the following steps for fleet conversion:

1. Use the original key that starts the vehicle to turn the ignition to run and then to off.
2. Within 10 seconds of turning to off, insert the new Blank Fleet Key and turn the ignition to run. Leave the ignition in run for 5 seconds and then turn off and remove the key.

Note: The security telltale may come on during the configuration. This is normal during this procedure.

3. The vehicle is now configured for fleet and all keys from the fleet will start this vehicle.

Note: The original keys can no longer be used to start the vehicle after it is configured to fleet mode. A one-time start with the original key may be possible but this is due to the TDM staying in a "Post Release state" for 8 seconds after the ignition is turned to off. During this post release time another key authentication does not take place.

4. Dispose of the original keys to keep them from being mixed in with other valid fleet keys. The original keys will never start another vehicle again.
5. To confirm you have successfully configured the vehicle to fleet mode using the Tech 2, follow the menus to the theft deterrent module and then access the "learn key data" to verify that the "Fleet Vehicle parameter" shows "Yes". If the parameter still states "No" perform the "adding keys procedure" again using the same new Blank Fleet Key. If this is unsuccessful, confirm the Transponder Key parameter is active "present". If not, replace key with a new Blank Fleet Key from the list above.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.