How many remotes can I program to work at a time?

How many remotes can I program to work at a time?
Experienced mechanics share their insights in answering this question :
Up to 8 remotes can be programmed to work with one vehicle. Having at least one spare is a good idea.

Tip

If one remote is replaced, any remotes currently programmed to work with the vehicle must be reprogrammed alongside the replacement remote.

How to Identify and Fix Common car Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced mechanics :

Yeah both should carry, no issues. You will occasionally get an alert if one of you leaves the car for an errand. make sure you really do both have your fobs.
Prevents Lockouts – If you manage to get locked out of your car, you can save yourself the cost of calling a locksmith by having a second key fob at your home. Sharing Vehicles – If your vehicle is used by more than one person, it`s much more convenient to have two remotes on hand instead of sharing one.
If it works, your Chevrolet Silverado has a remote start. Remote start is available in most models past 2010, but if you`re unsure, look for this button.
The remote vehicle start feature allows you to turn on your car from outside of the vehicle, using the remote keyless entry (RKE) transmitter. When you use the remote vehicle start, your engine will run for 10 minutes, or until you start driving.
To find out if you have the remote start option, you must first take a look at your key fob. The remote-start button is shaped like a curved arrow. If your key fob has this button, that means that your car is equipped with Remote Start. To try remote start, press the lock-shaped button that locks the car once.
You could reprogram a key fob to a different vehicle as long as the key is the same for the vehicle. In this case, if the key can go into the doors and unlock them, then you would need to do the following: Remove the battery from the key fob and put it back in (unless you put in a new battery)
NOTE: This ignition key has a chip hidden inside of the plastic head. It is a part of your automobile security system to prevent theft. Therefore, you MUST get it both: cut and programmed. Cutting only will NOT allow you to start the engine.
This usually happens because of low batteries, but shock can also cause the fob to lose its pairing. Most remotes can be reset, so check your car`s user manual for the resetting sequence. If resetting fails to solve the problem, the fob will need to be reprogrammed.
In short, yes. There are so many frequencies that can be used so occasionally a key fob assigned to one car may work on another. The odds that there are two cars within the vicinity of one another where that can happen are rare, but it does happen.
New cars typically come with two remote control keys. But, many consumers are surprised when they are given a single key after purchasing used cars from a dealership, and they are understandably upset when they learn that it will cost $300-$400 to purchase another key.
You usually get (2) keys with a new car. Some makes and models include a third key that is used as a restricted or valet key (key that restricts certain functions or speed levels).
A handful of manufacturers will allow you to program a single key, even if you don`t have a key that works. Keep in mind that you`ll still need to have the key cut to fit the ignition, which means you`ll need to provide proof of ownership to a locksmith.
Silverado also is equipped with segment-exclusive OnStar Directions & Connections with Turn-by-Turn Navigation and Automatic Crash Response, SiriusXM satellite radio, Bluetooth for phone and USB connectivity.
There are a few points to keep in mind when using remote-start. First, the engine will only run for 15 minutes. You can repeat the aforementioned steps within 30 seconds of the first start to extend run time by 15 minutes, for a total of 30 minutes. You`re only allowed one extension.
The vehicle runs for up to 10 minutes for each Remote Start session before it automatically shuts off. You can Remote Start a maximum of two times. Note: The vehicle runs for a max for 20 min run time (Remote Start x2) before either opening door or manually starting the vehicle.
The 3X lock system works by pressing the lock button 3X consecutively within 5 seconds from your factory keyless entry key fob. The remote start hardware we integrate with your vehicle understands that receiving a lock command three times is an instruction to start, and it begins the process of starting.
If you are within 200 feet of your vehicle, you can use your Chevy key fob to start your engine: Press the lock button on your key fob to secure the vehicle. Immediately after pressing the lock, press and hold the remote start button for at least four seconds.
Manufacturers such as LiftMaster, Craftsman, and Chamberlain garage door openers are sold with remotes that have three buttons so if you have more than one garage door, then each door opener can be programmed to any one of the three buttons.
No Programming

If you allow a key fob with a battery to go dead, it can lose its initial programming. This is because any key fob must be “paired” to the car it is meant to operate.

Typically, you do not need to reprogram the key fob after changing the battery. However, if you`ve replaced not just the batteries but also some of the internal wiring and electronics, you may need to reprogram it by pairing it with your vehicle once again.
Will the old key still work? For transponder-style keys, while the actual metal key will likely still work to open doors, the key may NOT start the ignition, since the car has been reprogrammed to activate from a new remote signal (for safety purposes so that a lost or stolen key cannot be used to access your vehicle).
Transponder Keys

They are a combination of the mechanical key, but with a transponder in the key head. The transponder links up with the vehicle and confirms the key is a valid one. This two-step process adds cost to replacing the key, as the transponder needs to be replaced and programmed as well.

A key fob battery will usually last around three to four years before it will need to be replaced.
Reasons for Transponder Car Key Reprogramming

A car`s on-board computers is accessible when it recognises the microchip inside transponder car keys, and without this the car will not open or start, which is the case sometimes when the keys unique code cannot be read. When this happens car key reprogramming is required.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

My ignition chime, radio, clock, dome light quit working at same time. The next day my keyless remotes quit working as well. What
ANSWER : The devices that failed may be on a common circuit and thus a relay, fuse, fusible link, or ground might be the issue. The keyless remote, although wireless, activates a vehicle circuit and that circuit, too, may have experienced some sort of failure, like the others. Your issue is primarily an electrical fault and thus the recommended service to get it repaired is an electrical component/circuit diagnostic. If you request that diagnostic, a certified mechanic will get this resolved. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

How many remotes can I program to work at a time?
ANSWER : Up to 8 remotes can be programmed to work with one vehicle. Having at least one spare is a good idea.

Tip

If one remote is replaced, any remotes currently programmed to work with the vehicle must be reprogrammed alongside the replacement remote.

Car alarm goes off every time when unlocking with a factory remote (remote auto start installed).
ANSWER : Hi there. After replacing the battery in the key fob remote, you will need to reprogram the remote to the vehicle. This is why the alarm is being tripped for the computer is not recognizing the remote. If you need further assistance with your remote, then seek out a professional, such as one from Your Mechanic, to help you.

Windshield wipers stopped working. They’ll suddenly stop working then suddenly start working again. Has been happening for a week.
ANSWER : The problem you are describing likely stems from an intermittent electrical fault in the wiper circuit. The windshield wiper system uses a small electric motor to move the wiper arms that you see on the windshield. That electric motor is controlled through a switch, relay, fuse, and wiring. One, or more, of those electrical components has failed although it is also possible that the mechanical arms are binding (seized, if the lubricant has dried out) thus causing the electric circuit to the motor to overload. Regardless of the underlying fault, if you request a non functioning wiper diagnostic/repair, the responding certified mechanic will get this taken care of for you. If you have further questions or concerns, do not hesitate to re-contact YourMechanic as we are always here to help you.

My dash board don’t work my front light work when I change my light into high beam and my back window won’t go down
ANSWER : As unfortunate as it is, your vehicle would be considered flood damaged. Diagnosing electrical problems in a flood damaged vehicle is nearly impossible. This would take many hours or even days to determine which wiring harnesses and circuits have been affected. Then nearly all of the wiring under the dash would likely require replacement as well as many sensors and switches. On a BMW vehicle, the amount of wires and switches are likely more than that of a lower end vehicle. Due to the inefficiency in cost, you would likely be able to purchase another BMW like yours for less than what it would cost to fix your car. Many insurance companies would consider this type of damage to total out the vehicle unfortuantely.

Central locking is no longer working.
ANSWER : It sounds like your vehicle has a problem with the body control module, mainly because you said the power locks are also inoperative from the door panel. The first thing I would suggest is to check the fuses, then have the body control module scanned. This might give you a fault code to work with or to help diagnose the issue. It may simply be a blown fuse. Beyond that, not much can be done without a test light, wiring schematic, and a good working knowledge of automotive electrical systems. At that point, I would recommend having the locking problem diagnosed by a professional technician.

An inconsistent starter motor that occasionally works perfectly now will not work. Then engine will not crank at all.
ANSWER : Hi there. It is possible for the starter to fail. But before replacing the starter, make sure that the battery cables are tight and clean. Then check the starter relay and make sure that the relay is clicking. If the relay is not clicking, then check for power to the relay. If there is power to the relay but there is no click, then the starter relay would need to be replaced. If there is no power to the relay, then either the wiring from the relay to the ignition switch has a break in it or the ignition switch is failing. If there is power to the relay and power to the starter motor, then the starter motor needs replaced. If you need further assistance with your no start issue, then seek out a professional, such as one from Your Mechanic, to help you.

need a way to retain the timing chain
ANSWER : The best way to approach this unfortunately is by using a timing chain tool retainer/holder tool. You may consider having an expert from YourMechanic come to your home replace the timing chain.