Jump to content
  • Sign up for FREE! Become a GM-Trucks.com Member Today!

    In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. 

Safety Warning - Tekonsha Prodigy P2 trailer brake system

Recommended Posts

Not experienced by me but I found this on another site and this needs to be shared....

For anyone with a pre 2003 GM vehicle, if you are contemplating pulling a trailer with it, and need an electronic brake control, be aware...

GM apparently changed the position of a wire in the convenience center where this brake controller (tekonsha Prodigy P2) connects. If you have the "aftermarket harness" you need to change the position of the red wire.

The result of this mispositioned wire is, when you brake, it does nothing to the trailer brakes. But if it gets dark, the auto sensor that turns the headlights on will also activate the brakes on your trailer!

We'd only pulled our trailer short distances at relatively low speeds twice before last weekend. On the way up to the Fremont contest however, we ran through a pretty bad thunderstorm, and it got dark....AND.....my brakes started activating on the trailer for no apparent reason! I thought it might have been caused by a short. But heard back from the Tekonsha folks today, and they pointed out Tekonsha tech bulletin # TB0012.

Very fortunate this didn't cause a serious issue! In my opinion, they should have drawn attention to it so someone would know without actually experiencing the issue!

Link to post
Share on other sites
  • 4 years later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

By using this site, you agree to our Terms of Use.