Changed alternator 06 impala now my tmps and key fod dont work. Replaced battery in k.fob still not working cant relearn either from dic in vechile

if you have remote start dealer needs to flash it

retry replacing battery new doesnt mean cant be defective if it is good than fob needs a relearn different cars have different relearn that you can perform but if the fob has other features such as start that will have to be done at dealer ----
Free Keyless Remote Fob Entry programming instructions procedures for all... look up your vehicle and will have instructions one how to program fob --will also tell if need to be done at dealer

immobilizer relearn. might need a locksmith, mobile diagnostic or dealer to relearn security. BUT FIRST check youtube and see if there is a procedure you can do yourself. a lot of the times there is. Regards, Tim

Take it to a car place like Kragen or Auto Zone or take it to a GM dealer.

new battery in fob doesnt mean it cant be faulty retry with a different new battery and or that it is installed correctly -also sometimes a fob will have to be relearned or flashed and that usually means a visit to dealer or service station thats authorized to do so--and if their was rust and oxidation i would recheck and reclean those components again and test continuity

There are 4 methods for programming key fobs. Up to 4 key fobs may be programmed to the remote control door lock receiver (RCDLR). Each programmed key fob is given a position of #1-#4 in the RCDLR memory.
Method 1 - Key Fob Quick Learn This procedure will add key fobs. Fobs will be numbered in sequence based on when they are programmed; if 2 fobs are currently programmed to the RCDLR, a fob programmed using this method will be numbered as Fob 3. This procedure requires that you have a known good key fob, a replacement key fob, and the vehicles mechanical key.

Important: This procedure is not available when the maximum number of fobs (4) have been programmed. If 4 key fobs are programmed to this RCDLR and this method is attempted, the driver information center (DIC) will display MAX FOBS LEARNED and the programming procedure will exit. Method 4 must be used in this instance.


The vehicle must be OFF.
Place a known key fob within the interior of the vehicle.
Insert the vehicle key in the driver door lock cylinder located in the driver door handle and cycle the key 5 times within 5 seconds.
The DIC will display a message: READY FOR FOB X (X = fob 2, 3, or 4).
Place the replacement key fob in the console fob pocket with the buttons facing forward.
A beep will occur and the DIC will display: READY FOR FOB X (X = fob 3 or 4) or MAX FOBS LEARNED.
If programming additional key fobs, repeat steps 5 and 6, or press the OFF/ACC portion of the ignition switch to exit programming mode.
Operate the active portion of each key fob in order to finalize the programming sequence and verify correct system operation.


Method 2 - Key Fob Slot Programming

This procedure will add or replace a key fob. Method 2 allows you to choose which location (slot) the unprogrammed fob will be learned to. If you are replacing a key fob, this method will erase the previously known key fob programmed to that particular slot. This procedure requires that you have a known good key fob, a replacement key fob, the vehicle mechanical key, and a scan tool.

Important: This procedure is not available when the maximum number of fobs (4) have been programmed. If 4 key fobs are programmed to this RCDLR and this method is attempted, the DIC will display MAX FOBS LEARNED and the programming procedure will exit. Method 4 must be used in this instance.


The vehicle must be OFF.
Place a known key fob within the interior of the vehicle.
Install a scan tool.
Use the scan tool, to access the following:
• Vehicle Control Systems

• Computer/Integrating Systems

• Module Replacement/Setup

• RCDLR

• Program Key Fobs

Insert the vehicle key in the driver door lock cylinder located in the driver door handle and cycle the key 5 times within 5 seconds.
Select Fob X (X = 1, 2, 3, or 4) on the scan tool. This will be the slot you wish to program to.
Place the replacement key fob in the console pocket with the buttons facing forward. A beep will occur indicating programming completion. The previously known fob is now erased.
If programming additional key fobs, repeat steps 4-8, or press the OFF/ACC portion of the ignition switch to exit programming.
Remove the scan tool.
Operate the active portion of each key fob in order to finalize the programming sequence and verify correct system operation.


Method 3 - Key Fob Auto Learn

This procedure will first erase all known key fobs. The procedure will then program a single or multiple key fobs. Method 3 is a series of three 10-minute key cycles, for a total of 30 minutes. This procedure requires that you have a replacement key fob and the vehicle mechanical key.

Important: All previously programmed key fobs will be erased upon completion of the 30-minute programming procedure. The order in which the key fobs are programmed will determine its numbering position within the RCDLR memory. The first key fob programmed will be key fob #1, and the second key fob programmed will be key fob #2. The number stamped on the key fob case is for reference only: #2 can be programmed as #1.
Do not place any known good key fobs in the vicinity of the vehicle when programming with Method 3. If the RCDLR recognizes a known good key fob during Method 3 programming, the programming mode will resort to Method 1.


The vehicle must be OFF.
Place the replacement key fob in the console pocket with the buttons facing forward.
Insert the vehicle key in the driver door lock cylinder located in the driver door handle and cycle the key 5 times within 5 seconds.
The DIC will display a message: OFF/ACC TO LEARN.
Press the OFF/ACC portion of the ignition button.
The DIC will display a message: WAIT 10 MINUTES, then it will count down from 10 to 0, one minute at a time.
When the counter reaches 0, DIC will display OFF/ACC TO LEARN.
Repeat steps 5-7 two more times, for a total of 30 minutes.
The DIC will display a message: OFF/ACC TO LEARN.
Press the OFF/ACC portion of the ignition button.
A beep will occur and the DIC will display: READY FOR FOB 1. At this time all previously known key fobs have been erased. When fob 1 is programmed a beep will be heard and the DIC will display a message: READY FOR FOB 2.
Additional key fobs can be programmed by taking fob 1 out of the pocket and inserting fob 2. If desired, up to 4 fobs can be programmed. Once 4 fobs have been learned, the DIC will display a message: MAX FOBS LEARNED, and automatically exit the program mode.
If learning less than 4 key fobs, press the OFF/ACC portion of the ignition button to exit the program mode.
Operate the active portion of each key fob in order to finalize the programming sequence and verify correct system operation.


Method 4 - Service Programming System Fob Programming

This procedure is a 10-minute relearn procedure using the Techline Terminal with SPS software. Once the 10-minute timer has expired, the fobs can be programmed similar to Method 2 using slot programming. A scan tool, Techline Terminal, and a replacement key fob are required to perform this procedure.

Place the vehicle in the Vehicle On, Engine Off mode.
Connect a scan tool to the vehicle.
Insure that all power consuming devices are turned OFF on the vehicle.
With a scan tool, select Request Info under Service Programming System and follow the scan tool on-screen instructions.
Disconnect the scan tool from the vehicle and connect the scan tool to a Techline Terminal with the current Service Programming System (SPS) software.
Turn the vehicle OFF.
On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions. Ensure the correct programming procedure is selected based on component being replaced or programmed. See Important above.
Disconnect the scan tool from the Techline Terminal and re-connect the scan tool to the vehicle.
With a scan tool, select Program ECU under Service Programming System.
At this point the scan tool must remain connected for the duration of the 10 minute relearn procedure.
When the 10 minute relearn procedure has completed, use the scan tool to access the following:
• Vehicle Control Systems

• Computer/Integrating Systems

• Module Replacement/Setup

• RCDLR

• Program Key Fobs

Select Fob X (X = 1, 2, 3, or 4) on the scan tool. This will be the slot you wish to program to.
Place the replacement key fob in the console pocket with the buttons facing forward. A beep will occur indicating programming completion. The previously known fob is now erased.
If programming additional key fobs, repeat steps 12-13, or press the OFF/ACC portion of the ignition switch to exit programming.
Remove the scan tool.
Operate the active portion of each key fob in order to finalize the programming sequence and verify correct system operation.

Take the key apart, replace the battery. The car needs to relearn the key, so stick it in the ignition, turn the car to the "on" setting without starting, press the unlock button on the fob. Thats it!

It's possible the key fob itself was bad and not the battery. Do you have another key fob. It may need to be relearned.

need to take it to dealer to relearn key fob,but they dont lose programming often,prob not working cuz it was dropped and the battery terminal insde broke off and not making contact,,

Hello and thank you for choosing fixya.com. I would suggest taking your vehicle to a local auto parts store and request to have a diagnosis done. (while auto stores vary, this is usually a free service and only takes a couple minutes to complete) to see if any codes are brought up. If so, the representative can tell you what the codes mean, and what needs replaced or repaired. Let them know of the situation. Even if no codes show up, ask them to clear the codes. If this does not work, do the following. 1: make sure that the batter in your key fob is inserted correctly, and that it is the correct size and type. 2. Disconnect the + Positive cable on your battery. This will reset your the vehicles computer. Maybe this will allow the vechile to code up with the fob. If not, I would take it to dealership, or backto an auto part store for further assitance.

I thank greatly for choosing fixya.com. I hope this information is useful to you and helps you get your fob working again. Let me know if you need further assistance, or have any questions or comments. Feel free to rate this information at your earliest convenience.