Keyless Entry - Transmitter Inop./Panic Button Missing
57 Remote transmitter key does not function remotely and/or red panic button missing57 09 29
2012503/5
November 24, 2009.
Supersedes Technical Service Bulletin Group 57 number 08-09 dated November 5, 2008 for reasons listed below.
Affected Vehicles
Condition
^ Remote transmitter key electronically does not lock and/or unlock the doors/trunk.
^ Remote transmitter key panic button is missing.
The key still functions mechanically.
Technical Background
^ Voltage loss due to insufficient battery contacts within the remote transmitter key.
^ Fault codes found in the access start control unit, address word 05, are:
-- DTC 00955 (Key 1, lower limit not reached).
-- DTC 00956 (Key 2, lower limit not reached).
-- DTC 00957 (Key 3, lower limit not reached).
-- DTC 00958 (Key 4, lower limit not reached).
^ Panic button mounting tabs break, allowing panic button to separate from remote transmitter key.
Production Solution
^ Introduction of gold battery contacts.
^ Introduction of improved panic button mounting tabs.
Service
1. Verify the number of remote transmitter keys that do not function.
^ If two or more remote transmitter keys do not function, perform central locking system diagnosis.
^ If one remote transmitter key does not function, check remote transmitter key battery voltage.
-- If 2.9 volts or below, replace battery.
-- If 3.0 volts or higher, replace remote transmitter key. Match the new remote transmitter key to the immobilizer system using the procedures as outlined in Guided Fault Finding or Guided Functions of the 5051 / 5051B / 5052 scan tools.
2. If the panic button is missing, replace the remote transmitter key.
Match the new remote transmitter key to the immobilizer system using the procedures as outlined in Guided Fault Finding or Guided Functions of the 5051 / 5051B / 5052 scan tools.
Warranty
Required Parts and Tools
Additional Information
All parts and service references provided in this TSB are subject to change and/or removal. Always check with your Parts Department and service manuals for the latest information.