A review of 2025 and 2026 GMC emergency open processes prompted a re-check of 2024. Sure enough, a subtle change was introduced in Acadia models that we missed at that time.
Emergency open processes become necessary when the battery in the key fob dies or when radio interference is present.
Acadia and Terrain remain the only GMC models that hide the key hole on the driver’s door under a cap that must be removed. In 2024, Acadia got a new type of cap, which was then added to Terrain in 2025
These models offer a “twist” on what is a very similar cap used in previous years. Both types feature a slot on the underside of the handle (right). However, the newer cap is much thinner than those from previous years.
To expose the key hole, insert the mechanical key into the slot. Turning the key counterclockwise releases the cap, which can then be pulled away (left).
The remainder of the GMC line feature a visible key hole, should one be needed.
The material on these pages is provided for information sharing purposes only and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business, nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.
Remember — only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.
The author has 30+ years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s, ME: MS, RPI, NY
GMC emergency open review sends us back to 2024
A review of 2025 and 2026 GMC emergency open processes prompted a re-check of 2024. Sure enough, a subtle change was introduced in Acadia models that we missed at that time.
Emergency open processes become necessary when the battery in the key fob dies or when radio interference is present.
Acadia and Terrain remain the only GMC models that hide the key hole on the driver’s door under a cap that must be removed. In 2024, Acadia got a new type of cap, which was then added to Terrain in 2025
The remainder of the GMC line feature a visible key hole, should one be needed.
Emergency open processes for GMC models can be seen here.
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The material on these pages is provided for information sharing purposes only and should not be used in lieu of an OEM service manual or factory authorized service procedure. We are not in the auto repair business, nor do we publish automotive service manuals. Nothing we include on these pages and posts has been reviewed, approved or authorized by any vehicle manufacturer.
Remember — only proper service and repair procedures will ensure the safe and reliable operation of your car. In addition, proper safety procedures and precautions, such as the use of safety goggles, the right tools and the equipment should be followed at all times to eliminate the possibility of personal injury or improper service which could damage the vehicle or compromise its safety.
Technology is always changing and what is current and accurate today may be literally out-of-date and inaccurate tomorrow. And when it comes to the current state of flux in the auto industry, nothing is more true.
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The author has 30+ years of automotive experience and has assembled the most extensive collection of symbols and warning lights anywhere (over 1,000!) and can help you open and start any keyless start car with a dead key fob battery. BA, St. Joseph’s, ME: MS, RPI, NY