You can program the trucks, as long as they are not locked out with a laptop. hold horn button on while turning on key, release only when "P" shows. This is parameters. H= Hours meters E= errors and D=diagnostic with "Pn" for part #s
At "P", turn throttle to Par 01. this is Max speed walking (without rabbit) or in coast. 0-42% IF ENABLED, hit horn button, the parameter showing will flash. If flashing, you can change it by rotating the throttle
Other parameters are 02, Maximum speed, with rabbit.. 0-100% Set it to what you want. recommend 80%
next is 03 Accelerate rate. 1-5 scale. 5 is gentle ! will toss the machine into the wall each time like a jack rabbit. Set it to 3
Don't mess with P4,P5,
P6 is max speed without rabbit. 0-66%
P7 is Accelerate rate for walking speed. 1-5 with 5 gentlest
Do not mess with other options!
Again, hit horn button to enable change, rotate throttle to raise or lower settings, hit horn to accept. And don't show the drivers this!