Considering a 2LS? Read This First!

[Angrybird 12]

Originally Posted by KILLA BEE

I Do have the 2Ls 2012 the rims and the stripes came with the car. BUT ima try that tapshift procedure TODAY
.just curious if it does do what it supposed to is it a GOOD THING??????.

I think it is just a feature reduction to encourage buyers to step up to an LT model. It also may be it was cheaper to produce without the true tap shift full feature.

If your car is upshifting in manual at the time you hit the paddle then more than likely you are already at or above the point it would have shifted in full automatic. Just try what I suggested and see what happens. That should remove any doubt.

[Jason@JacFab]

Originally Posted by Angrybird 12

I think it is just a feature reduction to encourage buyers to step up to an LT model. It also may be it was cheaper to produce without the true tap shift full feature.

If your car is upshifting in manual at the time you hit the paddle then more than likely you are already at or above the point it would have shifted in full automatic. Just try what I suggested and see what happens. That should remove any doubt.

I don't see how it could be cheaper to produce a 2LS without a "true tapshift"... It's still got the paddles. I would venture to say that it's all in the software.

[Angrybird 12]

Originally Posted by RacnJsn95

I don't see how it could be cheaper to produce a 2LS without a "true tapshift"... It's still got the paddles. I would venture to say that it's all in the software.

I guess there could be some internal sensors missing that will not allow it to be a true tap shift transmission. If the software is all, what would be the point in making it different? Most dealers don't even know there is a difference as do a lot of owners.

[KILLA BEE]

Originally Posted by Angrybird 12

His Onstar antenna is black and I think if you zoom in on the pic the roof ditch mouldings are also black. But I think even a non RS LT would have those.

Ok...it did what you said except for downshifting when slowing down....I'd rather redline the gears out like I been doing its more like manual then. its sound like some 2Ls owners can't do that. ..Im in first at 30-35 mph 2nd at 40 to 80mph and so on. I love it.!!!!!

[KILLA BEE]

Originally Posted by 911medic

Looking on my phone, the molding is hard to tell (thought it looked body colored), but yeah the shark fin is clearly non RS, for a 2012.

My 2LT (non RS) has black for both, so it could be one of those. I'm guessing he knows what he has and it's a 2LS, and he's just confused by the way ERS can seem to work like tapshift, though it's not really the same.

Don't know what the ERS is are BUT I can redline my gears if needed and it sure feels like a tapshift bro. And it gets my 0'60 time at 6.0. (I do have a catback exhsust tho)

[911medic]

Originally Posted by KILLA BEE

Don't know what the ERS is

If you read the first post you would.

Originally Posted by KILLA BEE

BUT I can redline my gears if needed and it sure feels like a tapshift bro. And it gets my 0'60 time at 6.0. (I do have a catback exhsust tho)

Yes, you can redline your gears if you manually upshift with ERS, but it's not tapshift. You're just setting the highest limit the transmission will shift to on it's own. If you set it to first, then second, then third, etc., you can have some control over the shifting similar to tapshift.

[Jason@JacFab]

Need to edit your 11/27/13 update. The 1LS cars can not use the 3.55 gears as they have the same 8.6" rear end as the SS, same for manual 1/2LT cars. Only the auto cars can use the 3.55's, and as you already noted, the 2LS needs the LT carrier.

[911medic]

Originally Posted by RacnJsn95

Need to edit your 11/27/13 update. The 1LS cars can not use the 3.55 gears as they have the same 8.6" rear end as the SS, same for manual 1/2LT cars. Only the auto cars can use the 3.55's, and as you already noted, the 2LS needs the LT carrier.

Thank you, sir. Updated.

[meissen]

After this thread was posted, I've been telling my dad about how the manual mode works with the ERS and it's not actually selecting the gear to drive in, rather just the maximum gear to shift into. He swore up and down that's not how his car works so I drove around with him in the snow last week. At least driving around as a passenger it appears that when he puts the car into manual mode that it really does let him select the gear that it's in - not just the max gear it'll shift into.

In the snow, he paddle shifts to 3rd gear to take off and he says it makes a noticeable difference in traction taking off in 3rd gear instead of 1st. He came to a stop and paddle shifted so it said 4th, then took off and the car lugged really bad like it was actually trying to take off in 4th gear.

I was in the passenger seat, so I can't confirm first hand and am going to try driving his car around when the temperatures warm up slightly and it's not all ice outside here in Metro Detroit, but my dad swears up and down his doesn't act like it has the ERS.

[911medic]

Originally Posted by meissen

After this thread was posted, I've been telling my dad about how the manual mode works with the ERS and it's not actually selecting the gear to drive in, rather just the maximum gear to shift into. He swore up and down that's not how his car works so I drove around with him in the snow last week. At least driving around as a passenger it appears that when he puts the car into manual mode that it really does let him select the gear that it's in - not just the max gear it'll shift into.

In the snow, he paddle shifts to 3rd gear to take off and he says it makes a noticeable difference in traction taking off in 3rd gear instead of 1st. He came to a stop and paddle shifted so it said 4th, then took off and the car lugged really bad like it was actually trying to take off in 4th gear.

I was in the passenger seat, so I can't confirm first hand and am going to try driving his car around when the temperatures warm up slightly and it's not all ice outside here in Metro Detroit, but my dad swears up and down his doesn't act like it has the ERS.

I would encourage you to investigate what your dad is saying and let us know what you find. I think many people can get fooled by a combination of their expectations of TapShift and the way ERS can mimic TapShift. It appears that those in this thread who have initially thought their 2LS had TapShift all discovered it actually doesn't, once they did some testing.

The description you gave above of your dad's use of the paddles to aid in snowy conditions tells me that he does not have TapShift. My car (with TapShift) will not allow shifting into any gear higher than second when the car is stopped. If I try to shift into 3rd or 4th (as you described your dad doing), the DIC says "shift denied." The car won't allow you to lug the engine that way by shifting into an inappropriate gear.

As to why the car behaved that way, lugging the engine when 4th was selected, my only guess (and that's purely what it is) is that StabiliTrak or traction control may have been kicking in. You wouldn't be able to see those indicators from the passenger seat.

But again, I encourage you to let us know what you find, once you get behind the wheel yourself. Another easy test is to put the car in manual mode while driving, set it for 4th or 5th gear (whatever is appropriate for the speed you're going) so M4/M5 is displayed, then slow to a stop without touching the paddles. If the DIC display stays on M4/M5, you have ERS. If the DIC shows the gears changing as the car automatically downshifts while slowing, it's TapShift. TapShift always shows the gear you're in, ERS only shows the max allowed gear, in the DIC.

[Angrybird 12]

Originally Posted by meissen

After this thread was posted, I've been telling my dad about how the manual mode works with the ERS and it's not actually selecting the gear to drive in, rather just the maximum gear to shift into. He swore up and down that's not how his car works so I drove around with him in the snow last week. At least driving around as a passenger it appears that when he puts the car into manual mode that it really does let him select the gear that it's in - not just the max gear it'll shift into.

In the snow, he paddle shifts to 3rd gear to take off and he says it makes a noticeable difference in traction taking off in 3rd gear instead of 1st. He came to a stop and paddle shifted so it said 4th, then took off and the car lugged really bad like it was actually trying to take off in 4th gear.

I was in the passenger seat, so I can't confirm first hand and am going to try driving his car around when the temperatures warm up slightly and it's not all ice outside here in Metro Detroit, but my dad swears up and down his doesn't act like it has the ERS.

On the TRUE tap shift V6 cars when you have it in manual you cannot select it to pull out in any gear other than first or second. Also if you have shifted up to fourth gear and slow down or stop it will automatically down shift and also indicate that it has in the DIC. It worked that way in my 2010 1LT and now in my 2012 1LT.
The snow is fooling you, get out on dry pavement.

[Jason@JacFab]

In my new 1LT with "tap shift" it will tell me "shift denied" as the above mentioned posts. It would never let you take off in 4th. What year is your Dad's car?

[meissen]

Yeah I'll definitely have to revisit once the snow melts a little more. If it displays on the DIC what gear it's in, I'm surprised my dad would be fooled into thinking he's in 4th gear if the DIC says he's in 1st.

[KILLA BEE]

as stated prior I have one of the first LFX engines built purchased it in 2011. I dont get it I can start off in 1,2,3,4,5 dont matter. Know shift denied lights no probs whatsoever. Even if its not a TRUE TAPSHIFT. It downshifts hard.every gear..pulls each gear .IT DOES THE JOB BIGTIIIIMMEEEEEE...