Accessory Mode

[TrueBlue]

Anyone know of a way to lengthen the time the vehicle's accessory mode stays on, to longer than 5 minutes? Like maybe until it is manually turned off?

2023 LT

 

Thanks

[gemarsh]

37 minutes ago, TrueBlue said:

Anyone know of a way to lengthen the time the vehicle's accessory mode stays on, to longer than 5 minutes? Like maybe until it is manually turned off?

2023 LT

 

Thanks

You can hold the start button longer. Will stay on till you push button again. It's the old ON position. No way of changing the time of the old ACC position.

[TrueBlue]

Thanks. I had read this puts the truck into Diagnostic Mode. Not sure if this would be good or not, depending whether power to ignition circuits and/or injectors etc. is also applied. In the old days turning the key to "On" and leaving it without actually starting the vehicle could fry the points. Though I haven't owned a car with points for decades, lessons earned early sometimes leave us with a tendency to do things in an "old fashioned" way.

 

With vehicles getting smarter all the time, it seems that engineers tend to sometimes overlook the simpler functionalities, like this one, or like providing a dedicated button or icon to turn the screen off at will. I sometimes wonder how many crashes have occurred simply because somebody's attention is focused on the 3 or 4 presses needed to just turn the car's screen off.

Edited September 10, 2023 by TrueBlue

[redwngr]

 

There is an 'Accessory Mode and a Service Mode. 

Service mode puts power to more items and does not have the five minute timer.

 

Accessory Mode (Amber Indicator Light) :
This mode allows some electrical accessories to be used when the engine is off.
With the vehicle off, pressing the ENGINE START/STOP button one time without the
brake pedal applied will place the vehicle in accessory mode.
The vehicle will switch from accessory mode to off after five minutes to prevent battery rundown. 

 

 

Service Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp
as may be required for emission inspection purposes.

With the vehicle off, and the brake pedal not applied, pressing and holding the ENGINE START/STOP button for more than five seconds will place the vehicle in Service Mode.

The instruments and audio systems will operate as they do when the vehicle is on, but the vehicle will not be able to be driven. The engine will not start in Service Mode.

Press the ENGINE START/STOP button again to turn the vehicle off.

[TrueBlue]

Yes. What I'm trying to figure out is a way to length the amount of the time the RAP retains power, beyond the five minute mark.

[redwngr]

2 hours ago, TrueBlue said:

Yes. What I'm trying to figure out is a way to length the amount of the time the RAP retains power, beyond the five minute mark.

 

 

Upfitter docs have some more info.  

Looks like 40 minutes with fob in truck and 20 minutes if fob taken away

Service mode in the OM seems similar to Run Mode in the Upfitter docs. 

 

 

From 2023 1500 upfiitter docs:

Push Button Start

 

The ignition mode switch has 2 LEDs that indicate the vehicle power mode Amber for Accessory Mode and Green for Run or Start/Propulsion Modes. When the vehicle is in the OFF mode, both LED’s will be OFF.

 

Momentarily pressing the S38 On/Off Vehicle Switch button once, brake pedal not applied, the vehicle will enter into the Accessory Mode and the Amber LED will illuminate. The Accessory Mode will timeout after approximately 5 min to help reduce battery drain.

 

With the ignition OFF, brake pedal not pressed, then pressing and holding the S38 On/Off Vehicle Switch for 5 s will place the vehicle in Run Mode (Ignition ON without the Propulsion Mode Active).

The vehicle will stay powered up for approximately 40 minutes if the transmitter is in range, or 20 minutes if the transmitter is out of range, and the Green LED will illuminate.

 

With the ignition OFF brake pedal pressed, then press and release the iS38 On/Off Vehicle Switch, the vehicle will enter Start/Propulsion Mode and the Green LED will illuminate, the engine will crank and the engine will be running for Internal combustion engines (ICE), or Propulsion mode will go Active on Electric Vehicles (EV). The Propulsion Mode will timeout after approximately 30 minutes if the transmitter is in range, or 15 minutes if the transmitter is out of range. The timer will stop when the vehicle is shifted out of PARK or the brake pedal is pressed and released, the timer
will reset after the vehicle is placed back in PARK with the Propulsion Mode Active.

 

Both LED’s have the voltage supplied from the body control module (BCM). The ignition mode switch sends the ignition mode switch status to the passive entry passive start module (PEPS) and to the BCM. The PEPS module sends a redundant signal to the BCM with the ignition mode switch status

 

Edited September 10, 2023 by redwngr

[TrueBlue]

Sorry I didn't respond earlier, I just now saw your reply. Thanks!