brake assist prob - flat towing - Ford C-Max Forum
LinkBack Thread Tools
post #1 of 2 Old 08-29-2018, 02:36 PM Thread Starter
Junior Member
Treece's Avatar
Join Date: Aug 2018
Posts: 2
brake assist prob - flat towing

Junior Member
Join: Aug 2018

13 minutes ago
Brake assist - Flat towing
I have towed my new 2017 C-Max a couple of times, with a Roadmaster Invisibrake in the car. So far, I've only had trouble with the car's brake assist overcompensating when I exited from the freeway. No matter how slowly or softly I pushed on the brake pedal, it felt like the car was determined stop the motorhome.*

Is there a way to keep that from happening? Would it help if I disconnected the battery when I towed the C-Max? I don't want to burn out my new Hytoad's brakes.
Treece is offline  
Sponsored Links
post #2 of 2 Old 08-29-2018, 10:55 PM Thread Starter
Junior Member
Treece's Avatar
Join Date: Aug 2018
Posts: 2
I may have found an answer. Taken from InvisiBrake Reference Information Doc on Roadmaster Invisibrake website:

4. Do not attach the vacuum booster line from the Invisibrake. If the vehicle exhibits symptoms of over-braking after the Invisibrake is installed, remove the 40A "Vacuum Pump" fuse under the hood while towing. A Fusemaster 76517 can be used for this purpose.

Re: Roadmaster invisibrake adjustments. Hybrids should*always start at 15 PSI and be adjusted up accordingly, depending on the vehicle.

Questions? Comments? Call ROADMASTER Customer Service at 1-800-669-9690
Treece is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford C-Max Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Forum Replies Last Post
Flat Towing C-Max niteowl001 Main Message Centre 2 08-28-2018 03:01 AM
Air Con Prob Oddgy The Good and the Bad..!! 2 05-23-2011 01:35 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome