I've never had any issues with DreamDrive Pro (DDP), until today.
It was a brief moment of DDP not being available.
Typically when I have adaptive cruise control (acc) on and I need to pass a slower car, I try to change lanes in time to avoid acc slowing the speed because of the close proximity of the car I'm passing. When that strategy is not possible (i.e. car in next lane), I put my foot on the accelerator to match the current speed set through acc and then disengage acc. This avoids a sudden drop in speed because acc has been disengaged. I then manually speed up to make the pass, return to right lane and reengage acc.
Today, because the first strategy mentioned above and the speed I had acc set at, a car behind me in the passing lane was approaching at a fast rate of speed. So, instead of maintaining the acc speed to make the pass, I accelerated to make the pass, but did not disengage acc. I basically did an acc override as mentioned in the owner's manual. After making the pass and returning to the right lane, I let off the accelerator to allow acc to resume, as the owner's manual says. However, acc did not resume. I remembered from the manual that if acc is overridden for more than 60 seconds, it will disengage.
So, I pressed the DD button to reengage DD and the message "Dream Drive Unavailable" appeared followed by a brief sensor warning message and a Lane Departure Alert warning indicator. I continued manually controlling my speed and after about another minute or so, the warning indicator went away and DD functionality returned.
Bascially the override of acc by accelerating and not manually disengaging DD seemed to throw DD off.
I'm wondering if the override of acc also makes acc unavailble for a short period of time.
No reoccurence for the rest of the drive.
Rush hour traffic was starting, so I headed home.
I'll test again tomorrow.
Went for another drive today to test ACC.
Upon entering the car, after unlocking, the message "Dream Drive limited. Schedule service" brielfy appears on the left cockpit screen.
The Lane Departure warning indicator and another indicator appear. Should have taken a picture.
I do a hard reboot; warning indicators remain.
The warning indicators remain while the car is in reverse.
Once in drive, the indicators go away and never appeared again.
ACC is slow to engage; unresponsive button.
Unresponsive after pressing button two more times, then engages.
Same with disengaging; slow response.
Response time improves as I drive.
I keep ACC engaged, accelerate above set speed, decelerate to set speed, and let ACC resume; no warnings/messages.
I repeat the engage, accelerate, and decelerate cycle several times; no warnings/messages.
After the first 5 or so miles, everything seems fine.
Drove a total of 70 miles; no issues after the first 5.
Not sure what happened yesterday, but the slow buttons response today, that improved, seems to indicate more of a software issue than hardware.
However, the software seemed to adjust/correct while driving.
On a side note: driving this thing 70 miles feels like driving 20 miles.
Turn on the music, let ACC do its thing, and the system name of DreamDrive definitely seems appropriate.
Truly a dream to drive.