I'm getting the lift. For those that have it, I'm wondering how the memory function operates in the real world. I have a series of speed bumps that I have to navigate to and from work. I'd guess about 1/8 mile or so. I known I can manually lift the car and then put it down once I'm through but will the GPS/save function work for that long of a run? I don't want to go up and down for each of the 7 bumps/tables. I hope I'm explaining this well.

 

The memory feature works flawlessly. I have 4 cycles each way to work (on Fridays) and the key is to make sure to reduce your speed to 25mph or under about 50-75 feet before the lift is needed. Once lifted it will automatically return to normal height 50-60 feet after the GPS point or if you exceed 25mph.

 

According to the 2021 Owners Manual that I have:
1. Takes 3 seconds to raise.
2. lowers if speed exceeds 24 mph
3. lowers if you are 197 feet from the programmed location.
I'm not sure how far in advance it will start to raise for a stored location but I think I have read that it takes speed and position into consideration. In practice, I am not certain that it starts to raise in time, under some situations. I have a stored location for a restaurant parking lot, which is a right turn off of a busy, two lane road with a 55 mph speed limit. Because the lift will not operate until speed drops below 24 mph, and it takes 3 seconds after that, I think it is sometimes not fully lifted when I turn into the lot. I have never scraped though.

 

For the record I drive over speed bumps every day with no problem and no lift.

 

Same here…..I use the lift for steeper entry ways where you can’t count on an angle attack because of unknown cars coming the other way.

 

I have had mine for about a year and have over 13k miles on it. I have few places I have memorized around town, including my driveway and another on my street where it has those drainage dips for a crossing street. The others are railroad crossings that are not well integrated to the street. All are at places I would normally slow down. It has worked great the whole time.

 

If the total area to cover is longer than the 197 feet it will stay lifted for one cycle, at some point set the GPS then a second time. I would think it would maybe come back down and then go back up between speed bumps in such a large area.

As others have said tho, you almost don't need it for average ones. The approach angle is not bad and I have mine lowered an inch as well..

Love having the lift tho and it's gotten me out of some hairy places I didn't realize till it was almost too late, trying to turn into certain parking lots or intersections with dips etc. You will be glad you have it.

 

I have several places memorized in my front lift and it has performed flawlessly. The only issue I've had is if I'm very close to where I have it programmed to lift/lower and don't go the same way it may lift/lower unexpectedly. That hasn't cause me to scrape. After four Corvettes - all of them scraped somewhere I drove them - I love this feature.

 

I also have a set of speed bumps I drive over almost every day. As noted you can set the memory and then travel about 200 ft before the car lowers. An 1/8th mile is 660 ft so you would need 3 or 4 settings. Now for some reality since you asked about real world:
1. Lift or not you still need to slow down. As I first went over these bumps, I did not use the Lift and at 10 m/hr there was a little scraping. Using lift there was none. Using Lift at 20 mph/ there was some. So for me what lift does is it lets you go faster over speed bumps but you still need to slow to the speed an average car would go over them.
2. The Lift is very smooth and you really don't notice it so even if you set on every bump its not like you will be bouncing. The lift/drop is 1.5 inches. I don't notice it at all anymore and have to look for the Lift symbol to tell if car has raised.
3. There is some motor sound (bzzzz) for the 3 seconds but it is similar to typical road noise and with audio on it not noticeable.
4. There are a few speed bumps here that are exceptionally high, with visible deep scrapes and even with front lift I go very slow.
5. Perhaps, If you set the first memory setting and then go just 150ft and set a second lift etc the car does not lower so you are not going up/down but I did not try this.

Finally, I was undecided whether it was a worthwhile purchase considering my previous car was lower and no lift and I still must slow down, however i decided it is worth it in the fact that I am now riding over the speed bumps at a reasonable speed and not crawling into driveways etc, and anytime there appears to be a height discrepancy just hit the button.

 

I guess it depends on where you live. 1k miles on my new C8 and haven’t regretted it once or even needed it.
best of luck

 

I took my chances in my driveway and bought used without it. No problems so far.

 

I haven’t tested max distance but here’s what I’ve noticed-

When you raise and save the position, it will also save the spot where you lower it. It creates essentially a “lift zone” and will raise it whenever you hit that zone from either direction.

it will lower when you leave the zone or if hit you hit 25 mph.

 

I have three speed bumps at work. Initially programmed them and it worked flawlessly.

Later did tests and realized there was plenty of clearance so I cancelled them. All works fine.

Better to have it and not need it, I guess.

 

Some speed bumps where I live are wider than they should be and require the front lift. Also I work in and have family in San Francisco. The approach to most of the hills need a combination of front lift and approaching from an angle. Front lift was a wise investment for me. Also, don’t second guess if you can clear a hump or dip. Every time I’ve done this, I’ve scraped the bottom of the bumper. If you got front lift…..use it!

 

I don't think I've ever needed my front lift for speed bumps. However, there are plenty of driveways and entrances around where I live that require the front lift to avoid scraping and sometimes even the lift isn't enough.

 

As mentioned earlier, it is all about the geography. I have it and am glad to have it. I'm coming from a Saturn Sky Redline that has only about 3 1/2" (less than the C8 IIRC) of clearance and I'd scrape the fascia underbody regularly around town, resulting in a near-aneurysm for me and a not-so-pleasant F-BOMB tirade (from me) experience for my Wife.

As far as I know, I've only scraped the nose of the C8 once so far (1450 miles), and that was because I was in heavy traffic focusing on other vehicles and pedestrians. I didn't hit the button to raise it in time.

I did consider the lack of track adjustability for lowering, but my anticipated track time did not balance the everyday driving needs.

 

Nope, I don't think it works that way. The car will lower when you get about 200' from the programmed lift point (197' according to the manual). No such thing as a "lift zone".