Although having a key fob is convenient, they all ultimately break down. You can almost certainly count on your car doors failing to unlock with the fob at some point, even if it’s simply a dead battery. Let’s go to find the reason why your Trailblazer key fob not working.
While there are a few possible causes for a Trailblazer key fob to cease working, you can usually check the majority of them on your own.
The most frequent fix for a Trailblazer key fob that isn’t functioning is a battery replacement. But what should you do if your key fob stops working after changing its batteries? You need to ascertain the situation’s nature first.
There is no way to suggest a fix without understanding the cause of a key fob that has stopped working after a battery change. If the car can’t find the key and won’t let you start the engine, it may potentially leave you stranded in some circumstances. But once you identify the issue, you can also identify a solution.
Is Your Trailblazer Key Fob Not Working?
The Trailblazer is one of the newer car types that don’t require traditional ignition keys to start the car. The majority of cars now feature keyless entry systems, which include a key fob transmitter and a receiver installed within the vehicle, thanks to technological advancements.
The key fob transmits coded signals to a receiver within the car, acting as a short-range radio transmitter. By hitting the push button, the receiver then carries out a specific action, such as locking or unlocking the doors or starting the engine.
Trailblazer key fobs are very useful because they make it impossible to lock your keys inside your vehicle. The Trailblazer occasionally fails to pick up signals from the key fob, though.
No-key error messages are very annoying because they prevent the user from entering the car or using the push-start button to start the vehicle. Every Trailblazer owner has experienced this problem at some point: the Trailblazer frequently fails to receive signals from the key fob.
Why Is Your Trailblazer Key Fob Not Working?
In addition to being inconvenient, Trailblazer not working can make you extremely stressed.
But don’t worry, sometimes simply replacing the battery will fix a remote. So let’s examine the most frequent causes of car remote failure and what you can do to fix them.
Out Of Battery
Lithium batteries, which have a long lifespan, are typically used to power remote controls. The battery will eventually need to be changed though. Thus, the battery should be checked first if your remote suddenly stops working.
Thankfully, batteries are easily accessible and quick to swap out. Consequently, fixing this is simple. Let’s get in touch with the mechanic, and they will assist you.
Rusted Button
After changing the batteries, a key fob can stop operating because the remote’s buttons have worn out. When a button is pressed, contacts on a key fob send signals to a circuit board. Both the contacts and the buttons may deteriorate to the point where they no longer touch.
The plastic disintegrating and exposing the contact is the most obvious sign of a worn button. You must rely on context cues without a visual cue. You might have a worn unlock button, for instance, if your key fob won’t unlock doors but still works to lock them.
Deprogramming
If a Trailblazer key fob not working after a battery change, it’s possible that it was deprogrammed. Deprogramming is the process of telling a vehicle’s onboard computer to delete all of the keys from its list of authorized users.
Pressing buttons on the remote control can result in deprogramming. Certain button combinations can instruct the onboard computer to invalidate all of the current keys. After changing the batteries, if more than one key fob stops working, deprogramming may be the cause.
To see if your Trailblazer has this capability, you can check online or in the handbook. If so, see if you can have your key reprogrammed yourself. Remember that if you don’t have a spare key, key fob programming might need to be done with special equipment.
Faulty Locks
A key fob’s malfunction following a battery swap might not be related to the key fob itself. You might need to fix the car door latches or have a Trailblazer door stuck in the lock position. In any event, a broken component of the lock may be the cause of the issue.
Checking to see if the remote is functional to open or lock one or more doors is the best way to determine whether a lock is broken or not. While it is possible for several door locks to malfunction simultaneously, if they begin to malfunction one at a time, it is also likely that your key is not to blame.
A Trailblazer door that won’t open from the inside or outside is a strong indicator that the key fob doesn’t need to be repaired. Broken locks are ones that won’t budge no matter what is done to them. You might need to fix your car’s trunk lock in addition to its doors.
Not using your car’s door locks is a bad idea. A big safety hazard arises if the doors do not open properly. Additionally, if your locks are not consistently locking, your security will suffer. As soon as damage begins to compromise usability, make sure to fix your locks.
Fault Key Fob
If your key fob suddenly ceased functioning after a battery change due to it being opened, stepped on, or getting wet, you should think a damaged key is to blame. Although not always, damage may be apparent.
A damaged key must be completely replaced, unlike one with worn buttons. Because of this, replacing a key fob with a damaged key will probably cost more money. Partial replacement can be an option if your problems are limited to the damaged housing.
Electricity Problems
In more severe circumstances, electrical system damage to the Trailblazer may be the cause of a key fob not functioning after a battery change. This might occur following maintenance on the Trailblaze during which the side panels or dashboard had to be taken off and put back on.
Wires become visible as panels are removed. They may unintentionally be damaged or disconnected while being serviced or when the panels are being reinstalled. Check for further electrical issues if this type of maintenance was recently completed before your key fob began to misbehave.
The car horn may no longer function, the lights may not turn on, and other electrical failures may occur in addition to key fob problems. An auto locksmith service is unable to resolve this kind of issue. An auto mechanic is more qualified and equipped to address common electrical issues.
How Can I Reprogram Trailblazer Key Fob Not Working?
A key fob needs to be successfully connected with the receiver unit in your Trailblazer in order to function securely. The fundamental steps for a typical key fob programming sequence are as follows:
- Close the door after stepping inside your Trailblazer.
- Put the ignition key in the lock
- Simply turn the key repeatedly from the locked position to the run position to start the car without actually starting it.
- You’ve turned the key too far if the engine cranks or starts. Turn it only to the run position; do not turn it to the start position.
- After you have cycled the key a few times, you will typically hear a chime. The chime should then sound a second time after you press one of the remote’s lock or unlock buttons.
- If the process was completed, the key fob remote should now function once more.
Final Thought
So, we help you find the reasons for the Trailblazer key fob not working. By contacting a locksmith, you may always lessen that intricacy. Many locksmith businesses give you the option of having a qualified specialist visit you to address your key fob issue. Replacing your Trailblazer key fob will frequently be the most straightforward solution. Please leave a contact below if you have any queries or would like to share your thoughts.