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  #11 (permalink)  
Old 02-12-2008, 11:51 PM
Active Enthusiast
 
Real Name: Marc
Location: Arlington Heights, IL (Chicagoland)
Hybrids: 2007 TCH - Desert Sand - Nav & Leather
Posts: 210
Default Re: Smart Key & Trunk Release

You have to hold the "membrane" switch for about a second to release the trunk. A quick push won't do it.
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  #12 (permalink)  
Old 02-13-2008, 04:38 AM
haroldo's Avatar
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Real Name: Larry
Location: New Jersey
Hybrids: non-NAV '08 "The Gray Lady"
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Default Re: Smart Key & Trunk Release

slightly off topic...
Quote:
Originally Posted by Bobfl View Post
Does trunk open from lever next to driver? ...
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).
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  #13 (permalink)  
Old 02-13-2008, 07:52 AM
Veracitorian Muser
 
Real Name: Alan
Location: Tempe, Arizona
Hybrids: Toyota Camry Hybrid
Posts: 194
Default Re: Smart Key & Trunk Release

Quote:
Originally Posted by n8kwx View Post
You have to hold the "membrane" switch for about a second to release the trunk. A quick push won't do it.
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
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  #14 (permalink)  
Old 02-15-2008, 05:47 PM
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Location: Massachuetts
Hybrids: Toyota Camry Hybrid
Posts: 9
Default Re: Smart Key & Trunk Release

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.

.


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  #15 (permalink)  
Old 02-15-2008, 06:24 PM
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Location: Canada
Hybrids: 2005 Toyota Prius Premium Package
Posts: 472
Default Re: Smart Key & Trunk Release

Quote:
Originally Posted by alan_in_tempe View Post
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
I believe it's RF not bluetooth.

.

Mods: EV mod, VVT-i emblem, sport pedals, OEM cargo mat, JDM Prius interior footwell lighting, Sylvania Silverstars 9003ST, DICE iPod kit, OEM all-weather mats, TomTom ONE v2, LED licence plate lights.
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  #16 (permalink)  
Old 02-16-2008, 01:28 PM
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Location: Massachuetts
Hybrids: Toyota Camry Hybrid
Posts: 9
Default Re: Smart Key & Trunk Release

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.

.


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  #17 (permalink)  
Old 02-16-2008, 04:35 PM
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Real Name: John
Location: King George, VA
Hybrids: 2007 Toyota Camry Hybrid
Posts: 124
Default Re: Smart Key & Trunk Release

Quote:
Originally Posted by captmiddy View Post
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:
C. Check the operation of the trunk opener — Check that the trunk lid is unlocked by pulling the outside handle.
You most likely paid for them to do perform the service.

Glad it was an "easy" fix.

.

John


2007 TCH -- Desert Sand, Bisque -- Original Equip: Leather Seats; NAV; Moonroof; Heated Seats
Completed Mods: Moved the side "HYBRID" emblem/badge to trunk lid; Mud Guards (Colored); Back-up Sensors; Door sill protector; ScanGauge II; Front Bra (Clear LLumar); Window Tinting (40 % Charcoal LLumar); Rear Deck Lid Spoiler
Mods in progress: None
Future mods:
Rear bumper appliqué, Sliding Center Armrest
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  #18 (permalink)  
Old 02-16-2008, 06:24 PM
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Real Name: Alan
Location: Tempe, Arizona
Hybrids: Toyota Camry Hybrid
Posts: 194
Default Re: Smart Key & Trunk Release

Quote:
Originally Posted by Tideland Prius View Post
I believe it's RF not bluetooth.
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
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  #19 (permalink)  
Old 02-20-2008, 09:49 AM
SPL SPL is offline
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Real Name: Stanley Lipshitz
Location: Waterloo, ON
Hybrids: 2007 Toyota Camry Hybrid
Posts: 825
Default Re: Smart Key & Trunk Release

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
Attached Files
File Type: pdf CH-71to77.pdf (58.7 KB, 12 views)
File Type: pdf TSB_EL015-06 - SMART KEY SPECIFICATIONS.pdf (77.7 KB, 15 views)

Last edited by SPL; 02-21-2008 at 09:07 AM. Reason: Corrected my first two points — see posts #20, 21 below.
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  #20 (permalink)  
Old 02-20-2008, 11:13 AM
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Real Name: Randy Morrow
Location: Ottawa, Canada
Hybrids: Titanium Toyota Camry w/ NAV (no energy screens)
Posts: 456
Default Re: Smart Key & Trunk Release

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.

.

--My hybrid came home!--
Ottawa owners check in here

Randy

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