Throttle cut off when you brake on 2012 MDX

[leotravino]

Has anyone got a fix or work around for the throttle cut out when you touch the brakes on the 2012 MDX? I didn't run into the issue until after I took delivery when I traded in my 04. I thought it was a problem but the service guys said it was a safety feature. I am a spirited two foot driver and this issue has become a safety concern. If the brake is barely touched, the throttle is cut and it takes a couple of seconds to come back. Several times I have been caught out with my foot down and going nowhere. Any help would be greatly appreciated.

[tolson37]

Never noticed any lag on my 2012 but then I don't use 2 feet.


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[wrestrepo]

Originally Posted by leotravino

Has anyone got a fix or work around for the throttle cut out when you touch the brakes on the 2012 MDX? I didn't run into the issue until after I took delivery when I traded in my 04. I thought it was a problem but the service guys said it was a safety feature. I am a spirited two foot driver and this issue has become a safety concern. If the brake is barely touched, the throttle is cut and it takes a couple of seconds to come back. Several times I have been caught out with my foot down and going nowhere. Any help would be greatly appreciated.

I have to try it tomorrow, but I'm guessing if this is true it probably had to do with the Toyota lawsuits.


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[Edward98]

I haven't noticed this at all on my '12. I'm able preload the torque converter all the way up to 2k rpm with my foot on the brake.

[leotravino]

Have you tried touching the brake while accelerating? On mine when you move away from a stop and still have your foot on the gas and touch the brake the accelerator disconnects. Your dead in the water until your foot is off the brake.

[princelybug]

What the OP states is true. I tested it out tonight. But, it'll never affect almost any MDX driver. Ever.

[wrestrepo]

I have a 2012 and tested it out today, and yes, the throttle is cut off when you apply both at he same time.


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[hnr949]

I've never experienced that in my 2012. I'm driving it today and will give it a try though.. Are you heel and toeing your MDX?

[leotravino]

Not so much heel and toe as trail braking into a corner or sharp turn and then accelerating away. It never a happened on my 04 and I didn't find the problem on the X5 or Porsche SUV. It wouldn't be so bad if it didn't intrude at such a low threshold. I'm hoping for a fix, either an adjustment or software update.

[wrestrepo]

Originally Posted by leotravino

Not so much heel and toe as trail braking into a corner or sharp turn and then accelerating away. It never a happened on my 04 and I didn't find the problem on the X5 or Porsche SUV. It wouldn't be so bad if it didn't intrude at such a low threshold. I'm hoping for a fix, either an adjustment or software update.

It will never happen. They installed the override for a reason. As a matter of fact, is that legislation? Or forthcoming legislation?

[S/T-MDX]

Originally Posted by leotravino

Not so much heel and toe as trail braking into a corner or sharp turn and then accelerating away. It never a happened on my 04 and I didn't find the problem on the X5 or Porsche SUV. It wouldn't be so bad if it didn't intrude at such a low threshold. I'm hoping for a fix, either an adjustment or software update.

Ok, let's take your driving into its phases.

If you are trail braking (an SUV or not), it implies you have some basic concept of tracking. Trail braking does two things: keeps the momentum of your speed and also decreases understeer (with more bite on the front tires). But the price you pay is more wear on your brakes and front tires. Unless you are on a track with your MDX, this is not for street driving.

Since you are a spirited drive, the solution is not to disengage a safety feature but to maximize the features you have.

You are driving an all wheel drive which means you technically have more control of the car during its entire path from turn it to apex to track out - all other things being equal.

Therefore, try to brake a bit earlier or a bit harder to have a bit more weight transfer to the front wheels at entry and help with steering grip then get back on the gas pedal to increase traction, and keep squeezing the gas as needed to full throttle at track out. Being an all wheel drive, the rears will hep. [FYI the new RLX comes with rear wheel toe steering.]