Think You Locked Your Keys in the Trunk? Maybe Not…

Locked Your Keys in the Trunk?

In the world of Push Button or Keyless Start cars, three calls are commonly received by service departments and roadside assistance operators: lock outs, dead key fob batteries and keys “locked” in the trunk or behind the rear hatch.

Of the three, the lock out is most likely to require an actual visit from roadside assistance. The second, a dead fob battery, has a backup plan that you can find here at DashboardSymbols.com or in your owner’s manual – if you can get into the car.

The third, keys locked in the trunk or storage area, is usually a conceptual problem that is a result of the nature of “locked” when it comes to modern push button ignition systems.

And of course the length of the explanation highlights one of the many problems associated with advanced technology. Perceived as user-friendly, the details can be more than confusing.

So first, assuming, and yes we hate to use that word, that the battery in the fob is strong, closing the trunk with the fob inside does not lock your keys inside. Just as a driver can approach the car with the key fob in a pocket or purse and open a door with just a touch, there is also a touch spot or pad for the trunk.

The difference is, of course, that a door has a handle to pull while a trunk does not. Thus a sense of panic can easily arise in a driver who has not routinely opened the trunk using the touch pad. Feel for it – it will generally be a raised or depressed, rubberized bit above the license plate. It is not visible unless you bend over and look for it.

This takes us to the nature of “locked” on push button systems. A driver steps from his or her car and presses the lock button on the fob. The locks engage. However, he or she can approach the vehicle at any time and open it with just a touch, all because the vehicle is in constant communication with that key fob. The same is true for the trunk, even with the fob inside the trunk.

So is the vehicle locked?

Well yes – and no! If the driver is within range, anyone can walk up to vehicle and open it. However, most vehicles make it possible to lock all the doors from the inside, which overrides the touch system.

This can result in a lockout, if the interior lock switch is engaged when exiting the car – and leaving the keys inside. This is roadside assistance time, unless you are fortunate enough to have OnStar, or an equivalent service.

So just to confuse things further, many manufacturers have included a trunk lockout switch, usually located in the glove box. This allows a driver to lock the trunk with the switch, then manually lock the glove box and hand the key fob to a valet while keeping valuables protected. If that switch is engaged and the keys are in a closed trunk, its roadside assistance time again!

Truly though, in the vast majority of situations, if you have dropped the keys into the trunk and closed it, relax. If you have a push-button start system, simply touch the pad above the license plate or on the lift handle of your rear hatch and the trunk lid or hatch will pop open.

The video below will help as well.

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Remember that 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.

These posts are 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.

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.