Cruise control - Page 3

mack1a · #31 (**permalink**) 08-28-04, 10:19 AM

Since you car goes in frequently you might ask them for a Deville next time and try that one before you let anything from a CTX influence you nagatively.

Samboosa · #32 (**permalink**) 08-28-04, 11:23 AM

Quote:

Originally Posted by mack1a

Since you car goes in frequently you might ask them for a Deville next time and try that one before you let anything from a CTX influence you nagatively.

yeah i think i will

Terpnut · #33 (**permalink**) 08-28-04, 11:45 AM

Besides Mack and me, can anyone please confirm that they have the cruise control speed reset problem?

mack1a · #34 (**permalink**) 08-28-04, 04:22 PM

Terpnut, I went back to verify exactly what my problem is and it is slightly different than I stated the first time. First , I set the CC at 40 MPH. I then used the accelerate to bring it up to 45 MPH. After hitting set it then drifted down to 41 or so MPH. So in fact the CC speed did go up a bit but only after falling 4 MPH or so from the second setting.

In general, the CC is very slow to respond on the SRX. If you hit accelerate on a DTS it starts accelerating immediately, when you hit set it freezes right there. The SRX on the other hand sort of gasps first and actually drops down a bit before accelerating and then things seem to get complicated by transmission downshifts and all sorts of RPM build up, and a general hallablu about nothing from the engine comprtment.

All kidding aside, I could best characterize what happens as feeling like a turbo charger lag similar to what my old Turbo T-Bird had. (At least it had cruise control on the wheel ) Sorry, can't pass that up.
My vehicle was manufactured in 01/04 By the way, does anyone know when they changed from the radio free Europe on-Star antenna to the cute little stubby on the top?

Terpnut · #35 (**permalink**) 08-28-04, 11:02 PM

The problem you are experiencing is essentially the same. In your example, regardless of whether it sets at 40 or 41 mph, it does NOT set at the proper speed, i.e. 45 mph. Even if others do not notice or care, this is a major problem for me that must be fixed. And yes, the control is also sluggish and inexact even when it is working.

compfan03 · #36 (**permalink**) 08-28-04, 11:47 PM

My build is Feb 04 and I have the same cruise control problem - only way I can increase speed is to either
- press the accelerate button
or
- flip the cruise control off and then on again

mack1a · #37 (**permalink**) 08-30-04, 01:09 AM

I did a little more investigating. When CC set and established at 60 MPH I kicked it up to 70 clicked and it settled at about 67.

When you listen to the CC as it interacts with the engine it becomes obvious that there is a systemic design problem there. When you tell it to accelerate it lags then comes on with a substantial burst of throttle. From the amount of throttle applied it seems as if the CC is set up for a small 4 cylinder engine instead of a stomping V8.

Again, if you use a DeVille CC you can see the difference in that when you accelerate there is no lag and the tach does not jump the way it does on the SRX.

It's almost as if the whole CC (Stick and ECM) was lifted right off of a small 4 cylinder Chevy.

MortnCyn · #38 (**permalink**) 08-30-04, 09:07 AM

Tested the cruise control yesterday and it worked just as I thought it would. It is necessary to turn the cruise off and then on again if I want to increase speed setting using the accelerator pedal. Have never driven a GM that worked any differently. I read the manual (page 3-14) and it does state that you can accelerate and use the button on the end to reset at the higher speed.

I agree with mack1a that the Accelerate/Resume is not very smooth. I on occasion push and hold the A/R button and accelerate by foot. It is smoother and I feel I can get closer to the speed I want as opposed to using the switch only. Will admit that I am accustomed to turning GM cruise off and then back on when I want to reset at a higher speed. I will see what the dealer says and post later. Build date is 11/03

Terpnut · #39 (**permalink**) 08-30-04, 11:04 AM

Mort--I've driven SEVEN different late-model GM vehicles in the past 12 months, and have owned or driven countless other GM vehicles over the years, and NONE of them have ever had any problems resetting at a higher speed using the throttle and set. This is definitely an SRX-specific problem and Cadillac has acknowledged it. Also, just to be very clear on the problem's "scope", it is possible to reset at a higher speed IF the higher speed is over 10 mph higher than the original speed. Mack may have gotten into this "zone".

mack1a · #40 (**permalink**) 08-30-04, 11:43 AM

The sad thing is that you almost get used to an inferior solution. Then I drive the DeVille and have ocassion to use the CC. Then you have to come back to the SRX and go through the acclimation and lowering of expectations process all over gain.

The best way to get over the many minimal attributes of the SRX is to nail it while getting on the expressway. I finally figured out my fatal attraction with this thing. It goes faster and handles better than it looks like it should.

Johnz · #41 (**permalink**) 08-30-04, 01:58 PM

Quote:

Originally Posted by Terpnut

Mort--I've driven SEVEN different late-model GM vehicles in the past 12 months, and have owned or driven countless other GM vehicles over the years, and NONE of them have ever had any problems resetting at a higher speed using the throttle and set. This is definitely an SRX-specific problem and Cadillac has acknowledged it. Also, just to be very clear on the problem's "scope", it is possible to reset at a higher speed IF the higher speed is over 10 mph higher than the original speed. Mack may have gotten into this "zone".

I just dropped my car off at the dealer for an oil change and the front end recall. I got an Escalade with 2,000 miles on it for a loaner and the cruise works the same way. You cannot accelerate and reset it at the higher speed. I guess it's not just an SRX thing.

mack1a · #42 (**permalink**) 08-30-04, 05:35 PM

Is it the same CC on a stalk thing or is it the version on the DeVille

Johnz · #43 (**permalink**) 08-30-04, 06:23 PM

On the stalk

MortnCyn · #44 (**permalink**) 08-30-04, 07:20 PM

Quote:

Originally Posted by Terpnut

Mort--I've driven SEVEN different late-model GM vehicles in the past 12 months, and have owned or driven countless other GM vehicles over the years, and NONE of them have ever had any problems resetting at a higher speed using the throttle and set. This is definitely an SRX-specific problem and Cadillac has acknowledged it. Also, just to be very clear on the problem's "scope", it is possible to reset at a higher speed IF the higher speed is over 10 mph higher than the original speed. Mack may have gotten into this "zone".

Terpnut, you have to know I never read manuals or instructions until absolutely necessary. My company car is a 2000 Buick and the cruise works as you have stated. My experience with GM cruise control, other than the Buick and now the SRX, is on 1985 and older GM models. Since 1980 have been in a 280ZX, '85 Buick (that was for some reason a hand full on snow) , Lincolns, Explorer, and Expedition. As a creature of habit I assumed the cruise was the same on the Buick as older GM cars and proved it to myself on the SRX by trying it. Will have to try the 10 mph or higher change on the SRX. The Buick did not require a 10 mph change to set.

Terpnut · #45 (**permalink**) 09-08-04, 04:32 PM

So after several visits to the dealer, a sharply worded letter to Cadillac's GM and several phone calls to Cadillac Customer Service, their conclusion is:

1. There is no fix for the problem in our particular flawed production run
2. Cadillac took cover under their pathetic disclaimer that any functionality described in their user manual is "subject to change". Translation: GM does not promise that anything will actually WORK the way it is supposed to or at all.
3. The best they can offer me is free oil changes for 24 months/24,000 miles.