GMC Dead Key Fob Help

Getting into Your GMC

Retrieving the Mechanical Key

GM Style 3Keyless or push button start GMC models use the third of three GM key styles. A mechanical key is held inside the fob and is needed to get 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 away.

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Getting Inside

Many GM models hide the key holes under a cap at the back of the driver’s door, and this includes the GMC GM Lock Cover RemoveAcadia and Terrain. 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 and hold upward pressure. 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.

Remember, getting IN the car is most important. If you have difficulty replacing the cap, don’t. Let your dealer do it when you get a new battery for your Key FOB!

Starting Your GMC

The large SUV’s from GM,  including the GMC Yukon, feature a transmitter Tahoe Escalade Suburban back-uppocket located in the face of the front of the inside of the center console, as shown to the right. Slide the transmitter into the pocket with the key ring facing out, buttons forward (in a Chevrolet Suburban we had on hand, the engine started with the buttons facing either way). It is a loose fit, but don’t be concerned. With the vehicle in Park or Neutral, press the brake pedal and the Start / Stop ignition button as normal. Check out the video here.

Terrain back up spotThe GMC Terrain small crossover SUV got its first taste of keyless ignition in the 2018 model. The back up location is in a cup holder. They are side by side (right) and the left side cup holder is used. As always, face the buttons up and with the vehicle in Park or Neutral, press the brake pedal and the Start / Stop ignition button as normal.

Malibu Impala back-upIn the GMC Acadia crossover, the pocket for the transmitter is located in the face of the rear of the inside of the center console pointing rearward. Slide the transmitter into the pocket with the key ring facing out, and the buttons up (or however it will fit!). With the vehicle in Park or Neutral, press the brake pedal and the Start / Stop ignition button as normal. And we have a video of the process here.

Note: If you have made an attempt to start the vehicle without success, there may be residual pressure in the brake system and a new warning light may appear (left) or text Engine Start Operation Indicatormessage to Step on the Brake. Press the brake pedal very, very hard when trying to start the vehicle again to be sure that the release switch behind the pedal is engaged. Check out this page for more!

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* Keep these instructions with you in our Dead Key FOB App. Search “Dead Key FOB” at your device’s store or click here.

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