The cruise control on my 2003 Fleetwood DP will not de-activate when I hit the brake pedal. Scared the hell out of me the first time it happened (in a curve). I have lifted the pedal and checked for trash and there was not any. Could it be a fuse issue or is there a switch that may need replacing? Any suggestions would be appreciated.

Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.

I can't imagine how that could happen. Sounds like a computer problem. I remember years ago I was going down the road with cruise on and the speedometer cable broke which because it thought it was slowing down, it accelerated full tilt until i hit the brake. I would get it to a dealer.

rgatijnet1 wrote:Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.x2

Whatever it is, don't use the cruise. And get it fixed as soon as possible.

I had the same problem and it turned out to be a short. Don't know where it was because it was fixed by Freightliner while under warranty.

Cruise control will not de-activate when hitting brake pedal

rgatijnet1
Explorer III
Apr 10, 2014
Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.
powderman426
Explorer
Apr 10, 2014
I can't imagine how that could happen. Sounds like a computer problem. I remember years ago I was going down the road with cruise on and the speedometer cable broke which because it thought it was slowing down, it accelerated full tilt until i hit the brake. I would get it to a dealer.
jwoods61us
Explorer
Apr 10, 2014
rgatijnet1 wrote:
Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.

x2
BB_TX
Nomad
Apr 10, 2014
Whatever it is, don't use the cruise. And get it fixed as soon as possible.
tmmar
Explorer
Apr 10, 2014
I had the same problem and it turned out to be a short. Don't know where it was because it was fixed by Freightliner while under warranty.
the_bear_II
Explorer
Apr 10, 2014
The brake light switch is either defective or not adjusted properly. I've had brake light switches on two different vehicles vibrate loose and weren't making the proper contact with the brake pedal. I've also had a switch go bad.
DennisVR
Explorer
Apr 10, 2014
jwoods61us wrote:
rgatijnet1 wrote:
Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.

x2

x3
Happened to me on my car. Lets just say not a good feeling.
As others have said, check to see if you have brake lights. Mine had a broken wire at the switch.
Bumpyroad
Explorer
Apr 10, 2014
happened to me. the switch at the brake pedal wasn't completely plugged in or didn't quite make contact. it catches your attention quickly. ;)
bumpy
OhhWell
Explorer
Apr 10, 2014
DennisVR wrote:
jwoods61us wrote:
rgatijnet1 wrote:
Do your brake lights work? If not, then the problem is probably in the brake light circuit, not the cruise control.

x2

x3
Happened to me on my car. Lets just say not a good feeling.
As others have said, check to see if you have brake lights. Mine had a broken wire at the switch.

x4 with one slight addition. I don't know how relevant it is to motorhomes but on 2 of the cars I have owned, there were separate switches for brake lights and cruise control deactivation on the pedal. They were imports and older so once again, probably not relevant....
rgatijnet1
Explorer III
Apr 10, 2014
Naturally you want to be very familiar with the cruise control shut off switch by your left hand.