Speed Sensitive Power Steering (SSPS) - Adjustable?

[Syrup]

I went to the dealership today and they wont touch the steering i even offered to pay for the RS steering and they won't do it. anyone in my area know a dealership that will or have done it at? Daytona area

They should be willing to flash one of the available algorithms that match the hardware on your car, that's what I had done. But it is going to be nearly impossible these days to find a dealer that will flash an RS algorithm to a non-RS model. I think GM has started cracking down on this. But good luck in your quest, non the less.

-Syrup

 

[Sonic Matt]

the dealer wouldn't even flash the available algorithms to my car i asked after i said the RS they said they won't because it's not "broken"

 

[Syrup]

the dealer wouldn't even flash the available algorithms to my car i asked after i said the RS they said they won't because it's not "broken"

That's lame, but to be honest, it's probably not worth your time or money to even pay for anything other than an RS algorithm. The dealer gave me what was probably best of the available for my stock hardware (15" wheels) and the difference is hardly noticeable. I won't settle until I have the RS algorithm.

-Syrup

 

[Sonic Matt]

did the change atleast make it feel a little less touchy and more of a heavier feel? i have the 15 in wheels also and im a shaky guy due to medical problems(not like seizure shaky but hand shaky) and the steering is just so touchy can't stay in a straight line at high speeds yet they test drove it and said its fine.

 

[Syrup]

did the change atleast make it feel a little less touchy and more of a heavier feel? i have the 15 in wheels also and im a shaky guy due to medical problems and the steering is just so touchy can't stay in a straight line at high speeds yet they test drove it and said its fine.

At highway speeds, the car used to occasionally shimmy for a moment. That's how I can best describe it. I haven't had that happen since the flash, but it's only been a few weeks. The difference was so small that I may have been imagining a bigger difference than there actually was. I think bigger wheels and stiffer suspension will help more. I'm currently shopping for 17" wheels and then I'll look to get the RS flash. If you're really having problems driving as is and can't get or don't want wheels now, then try to find a dealer like I did. But there are other algorithms for different wheels and suspension (which I assume are better, but still not as good as the RS). But I sat around for nearly 3 hours and the difference want worth it. But the knowledge of the different algorithms was useful.

-Syrup

 

[Sonic Matt]

yeah the shimmy happens to me once in a while. I've been thinking of getting lowering springs and bigger wheels just don't have the money right now. just bought new tires for the 15s a month back too.

I've been reading the reviews on the sonic and all the highway speed wander ect. are people who own the ls with the 15 in wheels.

 

[Syrup]

yeah the shimmy happens to me once in a while. I've been thinking of getting lowering springs and bigger wheels just don't have the money right now. just bought new tires for the 15s a month back too.

I'm happy I wasn't the only one with the shimmy problem. Try mentioning that to the next dealer you talk to. That's what got my first dealer to agree to the RS flash before backing out later. And telling them that I haven't experienced the shimmy with a different flash should make them willing to do it because it is fixing a problem.

-Syrup

 

[2THEXTRM]

My 12 LT with 15's loved to wander on the highway. My 15 Dusk with 18's is like night n day difference. The sidewall size seems to make a difference with our ride height for sure. My Dakota with 35's went straighter at speed than my last sonic

Sent from my XT1254

 

[Sonic Matt]

there it is the true problem the dang 15 in rims

 

[Syrup]

So an update to my initial post on this thread:

I installed 17" wheels and Eibach lowering springs on my car. I was getting a shimmy on the highway occasionally still. I went to the dealer to get a different calibration thinking they would give me one of the calibrations for 17" wheels and stiffer suspension (i.e. an LTZ calibration or similar). However, when I was told there were 7 calibrations for my car, the tech meant 7 calibrations for the sonic model, only 3 of which could actually be flashed to my car because of my VIN. This meant that those 3 were only designed for 15" wheels and stock suspension. So I got the 3rd calibration put on which it turns out was closest to the RS (of my allotted 3). It seems fine--has mostly eliminated the shimmy and best of the 3--but I think I'll eventually have to get the RS some other way.

The disappointment thing was that I went for this calibration and to flash the OEM fog lights thinking they could do both fairly easily and not charge me so much. Well, they charged me for 2 hours, 1 hour each (their minimum). Granted, I was there that whole time, and longer, but I don't think I really needed to be. End rant.

-Syrup

 

[Llia]

Is there a way to disconnect the gearing or entire motor to reduce the load a disabled motor would add?