RS Focus registered yesterday 19th March Keyless entry but remote fobs do not lock or unlock car. The car was driven back yesterday hav ing now covered 114 miles alarm was going off last night but thats stopped. Noticed immobioliser red light flashed on during journey home. Stopped car switched off and then restarted. This cleared the light. AA came out today the engineer phoned several people for technical help but went away baffled. Thje car will unlock with remote when in pocket when door handle operated and locks up on leaving, however no indication that this has happened eg indicators flash.

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 .

The Lock's lock from the door switches ? If they do it's not a fuse problem . Which of these does your vehicle have ?
Keyless Entry System Description and Operation (with Accessory 2 Way Remote)
Keyless Entry System Description and Operation (without Accessory 2 Way remote)

The keyless entry system is a vehicle entry device. The keyless entry system is used in conjunction with the body control module (BCM) to remotely activate certain vehicle features. Keyless entry will lock/unlock the doors/liftgate 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 to the BCM. A low transmitter or vehicle 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 may also cause interference that could lead to a malfunction. Keyless entry allows you to operate the following components:
• Door locks
• Liftgate lock
• Vehicle locator/Panic alarm
• Illuminated entry lamps
• Remote vehicle start
The keyless entry system has the following components:
• Keyless entry transmitters
• Keyless entry antenna
• 2 Way Advanced Remote Start RCDLR
• BCM

Your best bet , take it to a GM dealer .

Viper Keyless Entry Systems

https://www.viper.com/car/keylessentry/

Viper is the industry leader in keyless entry systems. Add the convenience of keylessentry to virtually any vehicle - even vehicles without power door locks!

Alarms, Remote Car Starters, Keyless Entry & Locks - JC ...

www.jcwhitney.com > Audio, Video & Electronics

20 out of 32 products in Alarms, Remote Car Starters, Keyless Entry & Locks ..... ofKeyless Entry & Car Alarms allow you to lock and unlock power door locks.
How to program your keyless entry keypad - Ford Ownerhttps://owner.ford.com/.../locks.../how-to-program...Ford Motor CompanyDiscover how to lock and unlock your doors and how to program memory settings that will adjust seats & mirrors for each driver.SecuriCode™ Keyless Entry Keypad - Ford Ownerowner.ford.com/.../locks.../securicode-keyless-entr...Ford Motor CompanyLearn how to set a 5 digit SecuriCode on the Ford keyless entry keypad. ... Sign out. Register/Sign In · Your Vehicle. Service & Maintenance. Service & .... vehicle's SecuriCode keypad to lock and unlock your doors without having to use a key. ... Thekeypad will go into an anti-scan mode if you enter the wrong code seven ...How Programming Your Keyless Entry Can Make ... - Ford Life

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

does your unlock button work in car? If it does, do you have another keyless entry key fob? If so does it work? If you just replaced the battery you can try removing battery and cleaning contacts within remote. I know some of the nissan altimas had the same issue and the only solution was a new key fob. Good Luck

Here's a link to program your fobs,need to do both at the same time. 2008 Subaru Forester Key Fob Remote Programming Instructions

Do you have a keyless entry FOB. If you do replace the battery then program the system. Unlock the doors turn the ignition key to the "ON" position then press either the lock or unlock button of the FOB turn the ignition key off.Now turn the ignition key on again and press either button on the FOB. Turn the ignition off again. Do this 3 times. This initiates programming for the power door locks. Press the lock button of each remote one at a time to be stored in memory. this must be done within 10 seconds of each remote.
3 remotes max. Turn the ignition off and remove the key to complete programming procedure. then test each remote.

Instructions to program a keyless entry remote for a Chevy Silverado. They also work on 2003, 2004 and 2006 Suburbans.

1. Close all the vehicle doors.
2. Insert the ignition key into the ignition lock cylinder.
3. Press and hold the DOOR unlock switch.
4. While holding the DOOR lock switch in the unlock position, cycle the ignition ON, OFF, ON, OFF.
5. Release the DOOR unlock switch. The doors will lock and unlock to confirm the program mode.
6. Press and hold the LOCK button and the UNLOCK button simultaneously on one keyless remote. After a delay of approximately 15 seconds, the doors will lock and unlock to confirm the programming of that transmitter.
7. Repeat the previous step to program up to four transmitters.
8. Turn the ignition switch to the RUN (one more click forward) position in order to exit the keyless entry transmitter mode.
9. Operate the transmitter functions in order to verify correct system operation

TRY PUTTING IT IN IGNITION TURN IT SO DASH LIGHTS UP THEN PRESS THE FOB WORKED ON MY CAR BUT MINE WAS A ASTRA