Jeff_Seymour
Member
Recently my key when I press it won't unlock the car. Do I need a new battery? And if so where do I get one from and what kind of battery?
Problems with unlocking car with remote
- Thread starter Jeff_Seymour
- Start date
Jeff_Seymour
Member
So I should just go to the dealer and get a battery? Because they usually charge you an arm and a leg for it
what I meant was Im not sure there is a battery that can be changed... but I might just be talking rubbish 
my understanding is that the car charges the key while you drive. Is the other key ok? Do you do lots of short journeys which may mean it isn't getting charged very much?
my understanding is that the car charges the key while you drive. Is the other key ok? Do you do lots of short journeys which may mean it isn't getting charged very much?
Jeff_Seymour
Member
How does the key get charged? Does it get charged by using it (putting it in the ignition)? 
Taken from the owners manual! 
1. Master keys with remote control
Each key is powered by an extended-life
battery that is charged automatically in the
ignition lock as you drive. For this reason,
use every master key at least twice a year to
keep its battery charged. Depending on
which master key is recognized when the
vehicle is unlocked, different settings are
called up and carried out in the vehicle, refer
to Key Memory on page 31.
1. Master keys with remote control
Each key is powered by an extended-life
battery that is charged automatically in the
ignition lock as you drive. For this reason,
use every master key at least twice a year to
keep its battery charged. Depending on
which master key is recognized when the
vehicle is unlocked, different settings are
called up and carried out in the vehicle, refer
to Key Memory on page 31.
Jeff_Seymour
Member
Now the question is how do I tell if I have been using the spare key or the master. Any ideas how to tell the difference between the 2 keys. The key I use now I use all the time. I use this key at least 3-4 times a day on short trips to work, gym or store.
Jeff_Seymour
Member
So now I have a problem because I use this master key all the time and it is not working all the time and it seems to be getting worse. 
Try this out you never know....
By the way IK the car def does charge up the key.
Quote:
Originally Posted by khanyam3
I was wondering if you can tell me the problem. I have 2 keys, one the key is able to lock/unlock via remote and open the trunk. My other key doesn't do any of the functions. Do the stealership need to program it?
I'm not talking about the valet key either.
I had the exact same symptoms with my 2nd key. The previous owner hadn't used the spare key in years, so the battery was dead. Even after recharging it wouldn't remotely unlock the car. I figured the battery was toast, being that it's 6 years old, but then I found this on another forum:
Quote:
1) Get in and close all doors.
2) Turn on the ignition and turn off quickly. (No more than 5 seconds) to start the process. Next action must take place within 30 seconds.
3) Remove the 1st key.
4) Hold the key up near your left shoulder (this is so it is closer to the remote receiver antenna - someone else suggested this).
5) Hold down the unlock button (which is button 1 on my key) and press the lock button 3 times (center button on my key). Release the unlock button and the doors lock, which confirms the operation.
6) Quickly repeat steps 4 & 5 for key #2 etc.
If it does not work, try doing the keys in opposite order. Key 2 then key1, vs 1 then 2.
If you have several keys, you'll have to reinitialize them all, quickly.
and it fixed my problem. Both keys now work fine, no dealer involvement necessary.
By the way IK the car def does charge up the key.
Quote:
Originally Posted by khanyam3
I was wondering if you can tell me the problem. I have 2 keys, one the key is able to lock/unlock via remote and open the trunk. My other key doesn't do any of the functions. Do the stealership need to program it?
I'm not talking about the valet key either.
I had the exact same symptoms with my 2nd key. The previous owner hadn't used the spare key in years, so the battery was dead. Even after recharging it wouldn't remotely unlock the car. I figured the battery was toast, being that it's 6 years old, but then I found this on another forum:
Quote:
1) Get in and close all doors.
2) Turn on the ignition and turn off quickly. (No more than 5 seconds) to start the process. Next action must take place within 30 seconds.
3) Remove the 1st key.
4) Hold the key up near your left shoulder (this is so it is closer to the remote receiver antenna - someone else suggested this).
5) Hold down the unlock button (which is button 1 on my key) and press the lock button 3 times (center button on my key). Release the unlock button and the doors lock, which confirms the operation.
6) Quickly repeat steps 4 & 5 for key #2 etc.
If it does not work, try doing the keys in opposite order. Key 2 then key1, vs 1 then 2.
If you have several keys, you'll have to reinitialize them all, quickly.
and it fixed my problem. Both keys now work fine, no dealer involvement necessary.
Jeff_Seymour
Member
3.0 Si Anderson, I will give it a try, you never know.