Failing Brakes?

[that_macheguy]

Hello all. I have a 2021 GT Performance with about 17k miles. Since summer wheel steering wheel shakes super bad when braking but sometimes it doesn’t. I haven’t used one pedal driving in about a month and it still does this. This is what the rotors look like immediately after driving. Any ideas? Yes I have searched and seen some things but they were old posts. Is something like this covered under warranty or am I out of the brake warranty?

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[billyp]

sounds more like steering components (tie rod ends etc) than brakes. Do you feel pulsating in the brake pedal?

 

[HuntingPudel]

It looks like you have some pitting on the rotors (not a big deal) and some rust spots where water was trapped between the pads and the rotor. Try doing some emergency stops in a safe place from 35-50 mph.

 

[that_macheguy]

No just the steering wheel is where I feel it. This picture is after 50 miles of driving this morning.

 

[Auto Motive]

Hello all. I have a 2021 GT Performance with about 17k miles. Since summer wheel steering wheel shakes super bad when braking but sometimes it doesn’t. I haven’t used one pedal driving in about a month and it still does this. This is what the rotors look like immediately after driving. Any ideas? Yes I have searched and seen some things but they were old posts. Is something like this covered under warranty or am I out of the brake warranty?

Rotors looks scored. Those grooves shouldn't be there feel it with your fingernail and see if it's sticks. Although brakes aren't warranted I would definitely let the dealer check those brakes out and your rotors. Be careful. My wife's GTP just clocked 11,500 MI and brakes and rotors look new and we use Regen except once a month we use normal braking to clear it clean the rotors. Good luck

 

[Neil4Real]

Not using 1 pedal drive still doesn't use the friction brakes unless enough force is needed.

Switch to neutral and do a bunch of stops.

 

[HuntingPudel]

Not using 1 pedal drive still doesn't use the friction brakes unless enough force is needed.

Switch to neutral and do a bunch of stops.

Yup. Panic stops.

 

[Maquis]

There is a TSB for some 2021 models relating to pad material getting stuck to the rotor and causing issues. It doesn’t sound exactly like your problem, but might be worth checking.

 

[fangfow]

Hello all. I have a 2021 GT Performance with about 17k miles. Since summer wheel steering wheel shakes super bad when braking but sometimes it doesn’t. I haven’t used one pedal driving in about a month and it still does this. This is what the rotors look like immediately after driving. Any ideas? Yes I have searched and seen some things but they were old posts. Is something like this covered under warranty or am I out of the brake warranty?

I am experiencing the same with my GTPE; have a dealer appointment this Friday for my 20K mile service... I'll let you know what they say.

 

[Logal727]

No just the steering wheel is where I feel it. This picture is after 50 miles of driving this morning.

pretty sure those rotors are normal, like others said, put it in whisper and then switch to neutral and do some hard braking

 

[that_macheguy]

I am experiencing the same with my GTPE; have a dealer appointment this Friday for my 20K mile service... I'll let you know what they say.

Thank you!

 

[that_macheguy]

I have braked hard enough now many times to remove anything and the rotors still look like that. I’ve owned many cars and never once had rotors look this rough. They are usually shiny not dull. I have not been using one pedal and brake normally so it shouldn’t be a problem with that

 

[HuntingPudel]

The thing is, unless I have been hammering my car I need to panic stop every once in a while to prevent rotor corrosion. I only use 2PD, but the car utilizes so much regenerative braking that your pads don’t really contact the rotors forcefully enough to polish off the corrosion during normal use. I don’t hammer the car much due to the HVBJB issue, so I am mashing the brakes on a weekly basis (pretty much daily during the recent CA rains).

 

[Space Ghost GT]

There’s your problem right there. That’s never coming out. You’ll need new rotors. 1pd will give you the gift of corroded rotors. As many have said even with 2pd you still really need to jam on the binders. The stick it N trick will clean them up nice. Hyundai actually has a mode that will make you use the friction brakes 10 times in a row to keep the rotors alive. Ford needs to do the same with an update. Our cars aren’t getting enough pad material deposited on the rotor faces to keep this from happening in normal driving. Another problem with regen only braking systems.

 

[that_macheguy]

There’s your problem right there. That’s never coming out. You’ll need new rotors. 1pd will give you the gift of corroded rotors. As many have said even with 2pd you still really need to jam on the binders. The stick it N trick will clean them up nice. Hyundai actually has a mode that will make you use the friction brakes 10 times in a row to keep the rotors alive. Ford needs to do the same with an update. Our cars aren’t getting enough pad material deposited on the rotor faces to keep this from happening in normal driving. Another problem with regen only braking systems.

That’s what I thought. Thanks for your input.