Just got a Yaris - AT downshifts when braking? - Toyota Yaris Forums

Jlager · 07-26-2012, 01:43 AM

I just bought a 2009 Yaris 5-door hatchback and have noticed something that seems odd to me but maybe it's completely normal.

When driving at highway speeds going down a fairly steep hill if use the brake, it seems as if it downshifts into 3rd as soon as I touch the brake. This causes the car to jerk a bit. It isn't bad, just something I've never experienced driving an AT before.

Is this behavior by design (engine braking to assist with the braking?) or is there something wrong? It doesn't seem to happen if I'm driving on flat road at highway speeds and use the brake, only when going downhill.

*Astroman* · 07-26-2012, 01:46 AM

Totally normal for the AT. It's part of DFCO.

BLH · 07-26-2012, 06:15 AM

Normal. My 2007 is the same way.

Klink10 · 07-26-2012, 08:43 AM

Normal

otterhere · 07-26-2012, 12:30 PM

Normal here! 2008

Jlager · 07-26-2012, 12:47 PM

Glad to know it's normal, thanks guys!

charles nelson · 08-06-2012, 04:44 PM

I appreciate the downshift. My auto trans makes no noise or noticeable jerking. I have to go down several steep hills every day at 30mph. If I slow down to the required speed, the downshift and engine braking keeps me right at 30. I hated having to manually downshift or ride my brakes on my Jeep Liberty.

07-26-2012, 01:43 AM	#1
Jlager Drives: 2009 Yaris 5 door Join Date: Jul 2012 Location: Vancouver Posts: 3	Just got a Yaris - AT downshifts when braking? I just bought a 2009 Yaris 5-door hatchback and have noticed something that seems odd to me but maybe it's completely normal. When driving at highway speeds going down a fairly steep hill if use the brake, it seems as if it downshifts into 3rd as soon as I touch the brake. This causes the car to jerk a bit. It isn't bad, just something I've never experienced driving an AT before. Is this behavior by design (engine braking to assist with the braking?) or is there something wrong? It doesn't seem to happen if I'm driving on flat road at highway speeds and use the brake, only when going downhill.

07-26-2012, 01:46 AM	#2
Astroman Modded Moderator View User's Garage Drives: 07 Toyota Yaris, 71 Galaxie Join Date: Mar 2007 Location: Wenatchee, WA Posts: 3,670	Totally normal for the AT. It's part of DFCO. __________________ Please visit my online store for computer stuff and Official Yarisworld decals!

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07-26-2012, 06:15 AM	#3
BLH Drives: 2007 Yaris Sedan Join Date: Apr 2009 Location: CT Posts: 271	Normal. My 2007 is the same way.

07-26-2012, 08:43 AM	#4
Klink10 View User's Garage Drives: 2007 Yaris Liftback Join Date: Sep 2007 Location: 910 Posts: 1,229	Normal

07-26-2012, 12:30 PM	#5
otterhere Drives: 2008 Yaris 3-door Meteorite Join Date: Oct 2008 Location: Southeast Posts: 398	Normal here! 2008

07-26-2012, 12:47 PM	#6
Jlager Drives: 2009 Yaris 5 door Join Date: Jul 2012 Location: Vancouver Posts: 3	Glad to know it's normal, thanks guys!

08-06-2012, 04:44 PM	#7
charles nelson Drives: red Liftback Join Date: Aug 2007 Location: St Cloud Minnesota Posts: 68	I appreciate the downshift. My auto trans makes no noise or noticeable jerking. I have to go down several steep hills every day at 30mph. If I slow down to the required speed, the downshift and engine braking keeps me right at 30. I hated having to manually downshift or ride my brakes on my Jeep Liberty.