Getting into Your GM Vehicle
Retrieving the mechanical key
Buick uses the last two of GM’s three key fob (remote control or ‘clicker’) styles. Style 2 is a flip key, shown to the right. Simply press the unmarked chrome button to extend the mechanical key. It remains attached to the key fob.
If a key hole is visible at the back of the driver’s door handle, use the mechanical key to unlock the driver’s door. If a key hole is not visible, see below.
With the Style 3 key fob the mechanical key must removed from the fob for use getting into the vehicle. To remove the mechanical key, press the button on the side of the transmitter near the key ring, as shown, and pull the key out.
Once again, if a key hole is visible at the back of the driver’s door handle, use the mechanical key to unlock the driver’s door. If a key hole is not visible, see below.
In the majority of Buick models, a key hole is visible at the back of the driver’s door handle. So, simply insert the mechanical key and turn and you’re inside.
However, in the 2016 model year, Buick joined other GM models, hiding the key hole behind a cap at the back of the handle. Models affected to dat include the Envision and Lacrosse.
In these cases, the cap must be removed to reveal the key hole. To remove the cap, pull the door handle out to the open position. Insert the key into the slot on the bottom of the cap (3, right). Push it as far upwards as possible, then pry outward. And yes, you WILL feel like you are prying off a piece of your car! Move the cap rearward revealing the key cylinder. Now the mechanical key can be used in the cylinder. Look for a video here to help.
To replace the cap, insert the two tabs at the back of the cap between the black seal and the metal base. Pull the door handle out to the door open position and move the cap forward and press to snap it into place. You can then release the door handle.