After about 30 to 50 miles down the road towing camper, brake light comes on on our 2012 Dodge Durango . I suspect it is because the trailer brakes aren't being engaged well nuf by the brake controller. Is it possible for the Durango brake computer to pick up the extra load on the brakes and turn on the light ? If I play with the brake pedal and get the trailer brakes to engage, the light seems to stay off.I definitely want to try another tow vehicle brake controller, what is the best performing brake controller now on the market? I hear about something called the Prodigy.

try replacing the brake light switch in the truck.. it's like 12 dollars and 2 minutes to replace.Yes, Prodigy makes several units.. I like the P3.

The brake light wont come on because the turck doesn't think the trailer brakes are good enough.Brake light comes on if there's an issue with low pressure in the system, if there's a computer or a few other obscure reasons.I would check the brake fluid level first. After that I would make sure nothing is leaking, especially at the wheels.

If you are talking about the light on the dash that comes on. Check the brake fluid level as if it is low when you corner or stop, the light can come on. Also emergency brake, if it is not completely off can trigger light. Lastly if the ABS brake system is not working right it can trigger light too.

I had the dealer checkout the Durango brake system, found nothing wrong, no brake light from the start with ihe vehicle running by itself

start with the fluid level ,my kids new van had the brake light coming on ,googled it,said the fluid was a tad low,added fluid and problem gone. these newer cars ain,t nothing like the old days.

Brake light comes on on tow vehicle towing camper ???

Chuck_thehammer
Explorer
Oct 14, 2016
try replacing the brake light switch in the truck.. it's like 12 dollars and 2 minutes to replace.

Yes, Prodigy makes several units.. I like the P3.
ScottG
Nomad
Oct 14, 2016
The brake light wont come on because the turck doesn't think the trailer brakes are good enough.
Brake light comes on if there's an issue with low pressure in the system, if there's a computer or a few other obscure reasons.
I would check the brake fluid level first. After that I would make sure nothing is leaking, especially at the wheels.
Dr_Quick
Explorer II
Oct 14, 2016
If you are talking about the light on the dash that comes on. Check the brake fluid level as if it is low when you corner or stop, the light can come on. Also emergency brake, if it is not completely off can trigger light. Lastly if the ABS brake system is not working right it can trigger light too.
vicmitch
Explorer
Oct 14, 2016
I had the dealer checkout the Durango brake system, found nothing wrong, no brake light from the start with ihe vehicle running by itself
midnightsadie
Explorer II
Oct 14, 2016
start with the fluid level ,my kids new van had the brake light coming on ,googled it,said the fluid was a tad low,added fluid and problem gone. these newer cars ain,t nothing like the old days.
theoldwizard1
Explorer II
Oct 15, 2016
I agree on brake fluid level. Make sure it is right at the maximum.
budwich
Explorer
Oct 15, 2016
how about this... with your trailer attached, your vehicle is on a different level... probably slightly "back sagged" that plus "almost low" fluid is such that the light is coming on but not during normal "untowing" use. Just a guess at a scenario.
BuckyBadger
Explorer
Oct 15, 2016
Are you sure you didn't bump the parking break?
Is it still doing it or did it stop when you disconnected the trailer?
vicmitch
Explorer
Jan 19, 2018
Should have gotten back sooner.

On-line mechanic suggested error code should be readable while keeping the vehicle running, sure enuf, was able to get to the dealer with the light on, left it running outside service door, mechanic read out the error code Wifi on his computer, turned out to be code turned on by by a brake system part malfunctioning, the fix was covered by a tech bulletin, end of problem!!
BurbMan
Explorer II
Jan 19, 2018
Fantastic, everybody loves a story with a happy ending!! Glad you got it fixed!!