WOW…..thanks for this info!.. I had no idea this was an option. My ZL1 has a ton of suspension upgrades but I did keep my mag ride…..it doesn’t ride bad but I think I would do this update and reset just in case. Thanks again brother.
My ctsV has all oem mag suspension but the front is noticeably lower than other stock V’s. Has more rake to it. Maybe a recalibration would help level the car some. Never knew this was a thing. Thank you
This is pretty instresting. I installed Eibachs a while back and yes, going over bumps does feel a little strange and ride is rough at times. What exactly would I tell my Cadillac dealership over the phone that I need done? A trim height reset?
@@fasnuf 2012, Eibach "Coupe" springs. I have a Sedan (The coupe springs lower the front a little more than the Eibach "Sedan" springs). Since my TCM and ECM are tuned, would the "Trim Height Rest" rest my car back to OEM configuration? Another word, would I lose my tune?
Hey, thanks again for the info! My ZL1 is highly modified with custom tunes to both ECM and FSCM. I assume that Chevy would plug in to the OBD2 port to apply updates and a trim height reset to the SPC. Do you think Chevy would be able to apply the update and adjustment to the SPC without interfering with the current custom ECM and FSCM tunes? Any info would be greatly appreciated. Thanks!
I just had my 2017 Yukon Denali lowered 2 in the front and 3½ in the back and now it rides like exactly how you described it. Very springy, over reacting to every bump and dip. I'm hoping your solution will help resolve my issue...........
@@fasnuf, ok so my mechanic reset that Magnetic Leveling Module as directed, and it rode a little better but something was still off, so I decided to have all 4 wheels aligned, as that was recommended in the instructions of the lowering kit. Well it was way out of alignment and it took the shop a couple of hours to get it done, during which time they had the battery disconnected. And it was for such a long time that my phone was no longer paired to it. But after the alignment the Yukon rode much better, almost like original. I'm guessing that the battery being disconnected for so long reset the whole computer system and it learned all the new sensor readings. I no longer regret having it lowered.......... thanks for the video, because it was this video that kicked off what I did next to resolve the issue.........
So a few weeks have gone by and I'm noticing something else. From time to time I will tow a trailer and I'm noticing the same issue when I tow the trailer. If I hit a few bumps in a row, the Yukon is very unstable. I'm thinking this might be the height of the the Yukon after lowering the trailer onto the hitch. The auto pump does kick in, but I'm thinking it's not going up high enough, and the leveling system is once again trying to compensate. I might have to do a little trial and error with pump adjustment which is on the left side by the back tire.
Would the trim height reset be necessary/improve the ride if the front end was lifted instead of the rear being lowered? Would the reset then make the shock sim kit unnecessary?
"Trim height reset" - ok tyvm! I have a sound coming from the rear of my CT4-V that I think is coming from the Magna-ride... driving me crazy... any other idea's, people? Ty oh, the sound itself sounds like something lightly hitting the floor over bumps, definitely coming from the rear part of the car dull thumping... maybe even exhaust? but when I check, everything seems properly secured... The Stealer-ship says "Oh that's normal, ignore it" - Um no. Not for 65k. I don't think I'll ignore it at all... 😐
Anything that moves the sensor past its stock neutral position will cause an issue. I don't have first hand experience with lifting a Camaro and what kind of reaction it would have, but I'm positive it would benefit from a recalibration. Thanks for the comment.
Disconnecting the battery doesn't work and the module had an update needed as well so a dealer was required. Here's a video of an Auto scanner able to do the trim adjustment. ua-cam.com/video/ayJZwIJ0D6E/v-deo.html
WOW…..thanks for this info!.. I had no idea this was an option. My ZL1 has a ton of suspension upgrades but I did keep my mag ride…..it doesn’t ride bad but I think I would do this update and reset just in case. Thanks again brother.
Great info! Glad it worked for you. Hmmm ill have to see if my dealer can update mine.
If your ride seems a bit rough, it'll be worth a try.
My ctsV has all oem mag suspension but the front is noticeably lower than other stock V’s. Has more rake to it. Maybe a recalibration would help level the car some. Never knew this was a thing. Thank you
Unfortunately, it doesn’t have anything to do with leveling. The ride height of the car is set by your springs.
This is pretty instresting. I installed Eibachs a while back and yes, going over bumps does feel a little strange and ride is rough at times. What exactly would I tell my Cadillac dealership over the phone that I need done? A trim height reset?
Exactly, Trim Height Reset and look for any updates to the module while they're plugged in, How low did you go and what year is your car?
@@fasnuf 2012, Eibach "Coupe" springs. I have a Sedan (The coupe springs lower the front a little more than the Eibach "Sedan" springs). Since my TCM and ECM are tuned, would the "Trim Height Rest" rest my car back to OEM configuration? Another word, would I lose my tune?
@@TopFlightWR The reset only adjusts the Suspension Control Module. I'm tuned and have no issues with this update. They're separate controllers
Hey, thanks again for the info! My ZL1 is highly modified with custom tunes to both ECM and FSCM. I assume that Chevy would plug in to the OBD2 port to apply updates and a trim height reset to the SPC. Do you think Chevy would be able to apply the update and adjustment to the SPC without interfering with the current custom ECM and FSCM tunes? Any info would be greatly appreciated. Thanks!
The suspension module update doesnt affect your ECM or FPCM tune. I didnt have to tell mine...he knew by the cam lope it wasnt stock.
I would still tell the tech not to mess with your ECM tune.
@@fasnuf Thanks a lot......you are very helpful......... Now, wish me luck in finding a knowledgeable and competent Chevy dealer.
@@fasnuf if you don’t keep it private I would be curious as to which cam you have ?
I am curious as to why you lowered your ZL1, I like mine at the stock height and don’t do any road course racing.
Just wanted a lower look. I don’t track the car
I just had my 2017 Yukon Denali lowered 2 in the front and 3½ in the back and now it rides like exactly how you described it. Very springy, over reacting to every bump and dip. I'm hoping your solution will help resolve my issue...........
Let us know how it goes
@@fasnuf, ok so my mechanic reset that Magnetic Leveling Module as directed, and it rode a little better but something was still off, so I decided to have all 4 wheels aligned, as that was recommended in the instructions of the lowering kit. Well it was way out of alignment and it took the shop a couple of hours to get it done, during which time they had the battery disconnected. And it was for such a long time that my phone was no longer paired to it. But after the alignment the Yukon rode much better, almost like original. I'm guessing that the battery being disconnected for so long reset the whole computer system and it learned all the new sensor readings. I no longer regret having it lowered.......... thanks for the video, because it was this video that kicked off what I did next to resolve the issue.........
So a few weeks have gone by and I'm noticing something else. From time to time I will tow a trailer and I'm noticing the same issue when I tow the trailer. If I hit a few bumps in a row, the Yukon is very unstable. I'm thinking this might be the height of the the Yukon after lowering the trailer onto the hitch. The auto pump does kick in, but I'm thinking it's not going up high enough, and the leveling system is once again trying to compensate. I might have to do a little trial and error with pump adjustment which is on the left side by the back tire.
is this why my 2020 Cadillac escalade sometime feel like its sitting low then sometime it feel like its sitting high
My concern is I have flex fuel and a tune on my C7. If the dealer flashes the entire tune, Ill be needing a tow truck.
They should only be flashing the suspension module, not the Engine module.
@@fasnuf Thanks. Talked to the head tech just now at the local Chevrolet dealer. He said the same im safe
Would the trim height reset be necessary/improve the ride if the front end was lifted instead of the rear being lowered? Would the reset then make the shock sim kit unnecessary?
I can't say on yours if it will improve the ride or not, but anytime the sensor neutral point is changed, it should be recalibrated.
"Trim height reset" - ok tyvm! I have a sound coming from the rear of my CT4-V that I think is coming from the Magna-ride... driving me crazy... any other idea's, people? Ty
oh, the sound itself sounds like something lightly hitting the floor over bumps, definitely coming from the rear part of the car dull thumping... maybe even exhaust? but when I check, everything seems properly secured...
The Stealer-ship says "Oh that's normal, ignore it" - Um no. Not for 65k. I don't think I'll ignore it at all... 😐
Salem Oregon??
Which springs did you use to lower your Z?
BMR 1”. I have a video out
What about it with a lift
Anything that moves the sensor past its stock neutral position will cause an issue. I don't have first hand experience with lifting a Camaro and what kind of reaction it would have, but I'm positive it would benefit from a recalibration. Thanks for the comment.
@@fasnuf
Ahh definitely. And it wasn’t a Camaro not trying too build a donk here lol it’s for my 1500 Denali with a 8” lift
Disconnecting the battery fir 20 mins will do the same thing.
Disconnecting the battery doesn't work and the module had an update needed as well so a dealer was required. Here's a video of an Auto scanner able to do the trim adjustment. ua-cam.com/video/ayJZwIJ0D6E/v-deo.html
Thanks 👌
Thanks for watching