Car jerks when letting off brake
We are heading on our maiden voyage! I have a 2012 Toyota Sequioa pulling a 2017 Bullet 247BHSWE. I of course have a brake controller installed, but I'm struggling with getting it properly adjusted...
Forum Discussion
One thing that I have found that can make a P2 or P3 jerk in city traffic.
Both controllers have what is called a Hold function. Hold is activated when the brake light on the TV is on for more than 5 seconds and there is no active deceleration. The Hold function applies 25 percent of the full voltage that has been set into the controller.
This can happen if you have your foot on the brake with only enough pressure to activate the brake light but with little or no active braking.
I do this often in city traffic when I am anticipating having to stop for a red light or another vehicle.
When I feel the Hold function activate I just take my foot off the brake for a second or two. This will cause the jerk feeling described by the OP.
Another time this comes into play is backing a trailer into a parking slot. Sometimes I just remove the 7 way while parking the trailer. Also makes it easier to back onto leveling blocks as often the Hold function will come into play before I am on the blocks.
If the Hold function does come into play before getting on the leveling blocks it can cause the wheel to skid the block instead of climbing onto the block.
Both controllers have what is called a Hold function. Hold is activated when the brake light on the TV is on for more than 5 seconds and there is no active deceleration. The Hold function applies 25 percent of the full voltage that has been set into the controller.
This can happen if you have your foot on the brake with only enough pressure to activate the brake light but with little or no active braking.
I do this often in city traffic when I am anticipating having to stop for a red light or another vehicle.
When I feel the Hold function activate I just take my foot off the brake for a second or two. This will cause the jerk feeling described by the OP.
Another time this comes into play is backing a trailer into a parking slot. Sometimes I just remove the 7 way while parking the trailer. Also makes it easier to back onto leveling blocks as often the Hold function will come into play before I am on the blocks.
If the Hold function does come into play before getting on the leveling blocks it can cause the wheel to skid the block instead of climbing onto the block.
