Were is the antenna for a 2003 cts keyless fob

According to GM there are 3 components in the RCDLR or RKE remote keyless entry system. My key fobs with new batteries only work standing right next to the car. The range of the key fob dropped at that the same time my TPMS tire pressure monitoring system repair warning came on my dashboard. The problem is that there are 4 different components on the 2015 Malibu. I will provide the GM part numbers for these, if you please tell me where they are and also how to replace them: #13583559 Remote Control Door Lock Receiver #13502554 Antenna #13502551 Ignition Lock Key Transmitter Antenna #13502549 Low Frequency Console Antenna

NO FOBS DETECTED
Refer to Keyless Entry System Description and Operation

Keyless Entry System Description and Operation - Passive
Passive keyless entry allows entry to a locked vehicle without pressing any buttons on the keyless entry transmitter. You must only have the transmitter with you. This passive system is also part of the vehicle starting system. It allows you to start and run the vehicle having only the transmitter as your key. The passive entry and starting system use low frequency antennas in 4 different areas on the vehicle to determine the location of the transmitter. When passively opening a locked door or the rear compartment lid, you must have a programmed transmitter with you in your pocket, purse, or briefcase. As a customer opens the door handle or presses rear compartment touch pad, the low frequency antenna sends out a challenge to the keyless entry transmitter. The transmitter must be in a one meter range of the door or rear compartment lid in order to receive the challenge. If the challenge is met, the transmitter will respond, allowing the door to be unlocked and opened. Passive entry allows you to operate the following features:
• Passive door unlock/unlatch
• Passive rear compartment lid release
• Illuminated entry lamps
• Vehicle starting
The keyless entry system has the following components:
• Keyless entry transmitters
• LH and RH door antennas (part of the door handle assembly)
• Rear compartment antenna
• Console passive antenna
• Console active antenna
• Instrument Panel Module (IPM)
• Rear Integration Module (RIM)
• Remote Control Door Lock Receiver (RCDLR)
• External RF Antenna (includes coax from RCDLR to back glass)

Remote Control Door Lock Receiver (RCDLR)
The RCDLR is a multi-function module which controls all the vehicles antennas for passive keyless entry functions. The RCDLR also acts as the receiver for active keyless entry and tire pressure monitoring (TPM) functions, as well as controlling all immobilizer functions.
The RCDLR's RF antenna is located in the back glass, and there is a coax cable connecting the glass antenna to the module located in the trunk.

Your best bet , take it to a qualified repair shop that has the factory Tech 2 scan tool or someother professional type scanner that can read • Rear Integration Module (RIM) DTC'S - diagnostic trouble codes .

Several autoparts stores have test devices for the Key Fobs. They hope to sell you batteries but the plus side to that is they test the signals emitted from your Key Fobs free.

I do not know the wiring in your model, but you should have a power source for the matching component for the Remote. Check the fuses and then Web search for transmitter antenna location and that may help if the antenna is loose and you can reconnect it.

Which antenna lead are you attempting to replace. There are multiple leads available for this vehicle. See link: https://www.wholesalegmpartsonline.com/products/Cadillac/CTS/CABLE-Radio-Antenna/3023484/25706702.html?partner=googlebase_adwords_parts_oe_make_model&kwd=&origin=pla&gclid=EAIaIQobChMItqncgtDl2AIVTbnACh1mOwwNEAQYAiABEgLqjPD_BwE

2007 Chevy Impala Keyless Entry: Keyless Entry Only ...

www.2carpros.com/questions/2007-chevrolet-impala-chevy-keyless-entry

Dec 30, 2010 - CHEVY KEYLESS ENTRY ... 2006-2007 Chevrolet Impala, Monte Carlo ... Remove the clips holding the RCDLR antenna wire at the RCDLR module and along the "A" pillar. 5. ... Connect the new antenna to the RCDLR antenna module. 11.... The existing antenna is grounded into another wiring harness.

TPMS and key FOB range problems - LS1TECH

ls1tech.com/forums/ls4.../719926-tpms-key-fob-range-problems.html

May 24, 2007 - 2006-2007 Chevrolet Impala, Monte Carlo ... Remove the clips holding the RCDLR antenna wire at the RCDLR module and along the "A" pillar.

Buick Workshop Manuals > Lucerne V6-3.8L (2007 ...

There are several methods of doing this - but your 2003 requires that you either go to the dealer for them to add a FOB with special equipment (ask if they'll do it for free - can't hurt). If you have time to kill, you can do it yourself with Method 3 as described and found at:

Key Fob Reprogramming General Cadillac Forums

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.

Good luck!

Testing would need to be done , scan tool hooked up checking DTC'S - diagnostic trouble codes . View data etc...
Keyless Entry System Description and Operation - Active
The keyless entry system is a vehicle entry device. The keyless entry system is used in conjunction with the door locks to unlock the vehicle. Keyless entry will lock/unlock a door or open the rear compartment lid when a corresponding button on the keyless entry transmitter is pressed. This is accomplished by the transmitter sending a radio frequency to the remote control door lock receiver (RCDLR). The RCDLR interprets the signal and activates the requested function via a serial data message. A low transmitter battery or radio frequency (RF) interference from aftermarket devices, such as 2-way radios, power inverters, computers, etc., may cause a system malfunction. High RF traffic areas, such as gas stations that use pay-at-the-pump RF transponders, may also cause interference that could lead to a malfunction. Keyless entry allows you to operate the following features:
• Door lock/unlock
• Rear compartment lid release
• Illuminated entry lamps
• Panic alarm/Vehicle locator
• Remote vehicle start

Your best bet , take it to a qualified repair shop . Dealer

You need to ask the guy you purchased the system from, we have no information on any add on, the factory oneworks through the BCM as far as I know.

The battery in the FOB may be bad/weak look in the glove box and see if there is a small pocket tha the fob will fit in, if so put the fob there and see if it will start, if it does then the fob is weak.

check antenna cable connections at radio & antenna.suspect power antenna if equipped.