You have to hold the "membrane" switch for about a second to release the trunk. A quick push won't do it.

 

slightly off topic...
Yes, but that location is where a few of my older old cars had their gas tank release, so the last few times I got gas, I mistakenly popped open the trunk for the gas station attendant (in NJ, it's full service only).

 

It does take a second for the trunk to open from the trunk lid switch, but a quick press will work. I routinely tap the button, drop my hand, wait a second, and then the trunk pops open. No need to keep the button pressed while waiting for the electronics to validate the key (I am assuming this is what is happening) and release the trunk.

While the front doors are constantly querying for a key (every second?) and usually knows a key is present before your hand reaches the door handle, I don't believe the trunk interfaces with the Bluetooth key until after the trunk switch is pressed.

-- Alan

 

Well I will be having them look at the trunk release button tomorrow while I get the car inspected. Will post when I get the news. Hopefully this is simply a matter of reprogramming what the key can do.

 

I believe it's RF not bluetooth.

 

Well took it to the dealership, and they said that the trunk latch wasn't plugged in. I made the smart remark, well it will never work that way will it? ;-). So all is good.

 

If you REALLY want to get them, ask them (the dealership, why they didn't perform the PDS (Pre-Delivery Service).

Part of the check sheet reads:You most likely paid for them to do perform the service.

Glad it was an "easy" fix.

 

As far as I know, there are only four modes for the TCH key (listing for each - type; function; mode; range):

- Bluetooth; doors, trunk, and start functions; only responds to queries from the car (front doors, trunk, and interior); range about 5 feet.

- non-Bluetooth RF; doors, trunk, and alarm functions; transmits only, and only when one of the fob buttons are pressed; significant range (over 50 feet, depending on battery strength and environment).

- RFID; starting function; passive (does not use the fob battery-gets its energy from the car); within about an inch of the START button.

- mechanical key; door function; does not transmit (does not use the fob battery!); zero range only!

If this summary is correct, then it is the Bluetooth RF that enables the door handle switches to unlock the doors. Anyone know differently?

-- Alan

 

alan_in_tempe — The following is my understanding about the different radio frequencies used by the TCH's systems:

• Smart Key: Fob-to-vehicle communication — 312-315 MHz (see TSB EL015-06 attached)
• Smart Key: Vehicle-to-fob communication — 134.2 kHz (see TSB EL015-06 attached)
• Bluetooth: 2.4 GHz
• Tire Pressue Monitor: 314.98 MHz (see page CH-73 from "TCH New Car Features" attached)

If this is correct, the Smart Key's communications aren't Bluetooth.

Stan

 

I interpret the TSB slightly differently.

134.2 kHz is used for all vehicle to key communications (such as key queries).
312-315 mHz is used for all key to vehicle communications (incl. response to queries from vehicle and button presses on key).

I agree, there's no mention of Bluetooth being used.