Auto start-stop override module is now available!

[printf]

It's unfortunate that Buick doesn't allow you to turn it off, but this is a German-made vehicle and they are more hysterical about global warming and low fuel consumption.

The irony is that the Opel Insignia does have a deactivation button for start/stop. 🙂

 

[motoring]

Did another demo ride. A/c set to recycle mode less than max fan setting yet s/s did not turn on when stopped...strange since tans was in auto mode

 

[mooooo]

Did another demo ride. A/c set to recycle mode less than max fan setting yet s/s did not turn on when stopped...strange since tans was in auto mode

One of the things that drives whether stop/start works is battery charge and health. If it's been sitting, the battery will be partially drained, and may cancel auto-stop until it's recharged. (Which can take several hours of driving, to go from flat to full)

 

[IanMitch]

This is my second stop/start vehicle, and it doesn't bother me much at all... except... when inching into my garage. Damn thing shuts off when I'm inches from where I want to stop. I will need to train myself to slap into manual shift coming into the garage.

 

[FavaBean]

Another nuisance is when it's raining and you pull up to a light....Your car's windows start to fog because the defroster is no longer effective because the a/c shut down with the engine (and yes, recirc is off).

The windshield defroster is already too weak as it is!

 

[mooooo]

Another nuisance is when it's raining and you pull up to a light....Your car's windows start to fog because the defroster is no longer effective because the a/c shut down with the engine (and yes, recirc is off).

The windshield defroster is already too weak as it is!

It does that even when the autostop doesn't engage. There's clearly better flow of fresh air when the car is moving. In a modern vehicle, the AC compresor engages and disengages as required to maintain temperature (and can be disengaged by things like hard acceleration and engine temperature, too.), so shutting the engine off when it's not running won't do anything to hurt defogging performance.

The AC compressor is supposed to cancel autostart and can cause a restart. I haven't experienced that yet, it's too cold, but certainly other GM stuff I've driven works that way.

 

[FavaBean]

so shutting the engine off when it's not running won't do anything to hurt defogging performance.

Maybe I am misunderstanding your point, but the A/C compressor is shut down during the auto stop.

Normally when engine is running and the climate control is set to defrost, the A/C cycles on and off. A/C is critical when your windows are fogged. Without A/C, the windshield fogs even quicker on a rainy day.

In this scenario, it's raining and you're driving around with the setting on defrost. When you stop at a light the engine shuts down... And so does your a/c compressor. That's why windows begin to fog as the cabin humidity increases without the a/c on.

 

[mooooo]

Maybe I am misunderstanding your point, but the A/C compressor is shut down during the auto stop.

Normally when engine is running and the climate control is set to defrost, the A/C cycles on and off. A/C is critical when your windows are fogged. Without A/C, the windshield fogs even quicker on a rainy day.

In this scenario, it's raining and you're driving around with the setting on defrost. When you stop at a light the engine shuts down... And so does your a/c compressor. That's why windows begin to fog as the cabin humidity increases without the a/c on.

If the climate control system tells the AC compressor to run, the engine starts, or doesn't shut off in the first place when it was already running. If the AC isn't running, the engine will shut off. But, since the AC wasn't running anyway, the engine not running won't make the windows fog any faster.

 

[justiz00]

The irony is that the Opel Insignia does have a deactivation button for start/stop. 🙂



View attachment 14099

Maybe we should get a group buy going on this “Combo Switch” assembly, bet it’s less than $50 as the OEM ones are in the $20 range.

 

[FavaBean]

, or doesn't shut off in the first place when it was already running. If the AC isn't running, the engine will shut off.

THIS car absolutely shuts down when the A/C is on (except when set to max). Have you had the pleasure yet to drive it in hot weather?

If not, please post again when you have - but you may want to wait until the cabin temperature is comfortable again.

The climate control will eventually restart the car, but after the cabin temperature has changed and potentially after your windows have fogged up in the rain.

 

[Pacer69]

Not sure if it was posted earlier, but I've read you can also defeat it by switching gearbox to manual. FWIW.

 

[printf]

Does auto stop also engage if you're inching into a tight parking spot in reverse?

 

[mooooo]

Does auto stop also engage if you're inching into a tight parking spot in reverse?

IT will probably engage when you stop going forward. Changing gears restarts the engine. It won't stop unless you exceed the minimum restart speed.

 

[justiz00]

Does auto stop also engage if you're inching into a tight parking spot in reverse?

Doesn’t for me. I back into my garage every time and it has yet to engage in reverse.

 

[1500cc]

The switch will not work unless the wiring harness accommodates it and the software in the vehicle is programmed to recognize it.

I'd actually say the odds are pretty good that adding the hardware switch would enable the defeat in our vehicles. It saves money to use common parts, so I doubt GM would design a separate harness to remove the switch's circuit. Actually with the use of CAN buses in today's cars, I doubt that specific switch has its own wires anyhow; that whole switch cluster probably only has 4-6 wires running to it no matter how many things it does.

As to the software, again I doubt GM would spend money to modify and test code, when they were just planning to delete the physical switch.

 

[Rhetoric]

I'd actually say the odds are pretty good that adding the hardware switch would enable the defeat in our vehicles. It saves money to use common parts, so I doubt GM would design a separate harness to remove the switch's circuit. Actually with the use of CAN buses in today's cars, I doubt that specific switch has its own wires anyhow; that whole switch cluster probably only has 4-6 wires running to it no matter how many things it does.

As to the software, again I doubt GM would spend money to modify and test code, when they were just planning to delete the physical switch.

Pull the plate up and see if there is wiring there...

There is no wiring for the rear fog lamp like the Euro cars have. The housings themselves are also different. (I’ve verified in person.)

VW was really good at omitting wires and harnesses in the US spec cars if the Euro options were never going to be available. Not sure why GM would be any different.

 

[JohnMC2010]

Does auto stop also engage if you're inching into a tight parking spot in reverse?

Stop/Start only happens if you are in "Drive"

 

[4wheelforay]

Pull the plate up and see if there is wiring there...

There is no wiring for the rear fog lamp like the Euro cars have. The housings themselves are also different. (I’ve verified in person.)

VW was really good at omitting wires and harnesses in the US spec cars if the Euro options were never going to be available. Not sure why GM would be any different.

I read a while back that Mercedes had a specific wiring harness for EVERY trim, not just every model. I am very tempted to pop the cover and see what is underneath, might even be worth the risk of causing a rattle.

Does anyone have the wiring schematic for the Opel and TourX?

 

[1500cc]

Pull the plate up and see if there is wiring there...

Like I said above, with CAN buses and multiplexing, not every switch has its own wires running back to the computer. I'd bet the Insignia cluster has the exact same number of wires and same plug as ours, but the difference would be we have a dummy/blank switch for start/stop disable whereas their cluster adds the electronics to talk on the CAN bus.

There is no wiring for the rear fog lamp like the Euro cars have. The housings themselves are also different. (I’ve verified in person.)

Is that switch ahead of the gearshift along with the start/stop disable, or in a different location altogether? If in a different location, it might make sense to eliminate an entire harness leg that will never be used.
[/QUOTE]

 

[Rhetoric]

Is that switch ahead of the gearshift along with the start/stop disable, or in a different location altogether? If in a different location, it might make sense to eliminate an entire harness leg that will never be used.

No need to explain again. I understand how it works. I’m just speaking from experience as I’ve gone to the pain to retrofit European options into US spec cars and 90% of the time there has been no wiring there. Sure, the plug is the same, but I’ve had to add runs of wires, de-pin and re-pin, etc etc.

The rear fog shares the same headlight switch location as the US spec cars, but the switch is different and adds more buttons. I’m sure the plug is the same, but there are no wires back at the tail light end of the vehicle. Case in point: in my MKIV Jetta I ran a wire all the way from the headlamp switch to the rear fog bulb holder as there was no wiring there from the factory.