Strange Transmission Shift - Toyota Yaris Forums

chrisj · 10-19-2010, 10:37 AM

Wanted to post this here to see if what I've experienced is normal or not.

Sometimes (not all) when going downhill at speed if I touch the brake the transmission will gear down, like it's going from D to 3 or something (obviously I have an auto trans). It has only done it a couple of times since I've had the car, but it still seems odd.

Is this normal, or has anyone else experienced this? TIA.

CTScott · 10-19-2010, 10:44 AM

I think Toyota decided that the Yaris needed a Jake brake, like a tractor trailer. I definitely notice the same behavior with my A/T. If you are going down hill and don't the brake, the car coasts. If you tap it, the A/T engages and you get some serious engine braking.

chrisj · 10-19-2010, 10:48 AM

Thanks man. I thought we might be having problems. Whew. :)

BLH · 10-19-2010, 12:08 PM

Normal on my 2007 sedan.
Depending on my accelerator pedal position. Mine also stays in 3rd after getting to the bottom of the hill.

eTiMaGo · 10-19-2010, 12:15 PM

yep, I think they call it hill assist, it'll downshift earlier when going uphill too.

chrisj · 10-19-2010, 01:10 PM

It was just strange, since I've never had a car that did that.

krolos · 10-20-2010, 12:10 AM

Ya this is normal, I forgot the name of that feature but the owner
manual says somthing about it.

SimTronik · 10-20-2010, 12:47 AM

Same here. techno yaris lol

chrisj · 10-20-2010, 01:07 AM

Manual? LOL!

2007yariz · 10-21-2010, 06:44 PM

OH! That's engine braking. I always thought is the ABS doing its job...

10-19-2010, 10:37 AM	#1
chrisj Hooch Brewer-Shine Sipper View User's Garage Drives: 2009 5-dr LB Join Date: Aug 2010 Location: S. Jesus, Kentucky Posts: 646	Strange Transmission Shift Wanted to post this here to see if what I've experienced is normal or not. Sometimes (not all) when going downhill at speed if I touch the brake the transmission will gear down, like it's going from D to 3 or something (obviously I have an auto trans). It has only done it a couple of times since I've had the car, but it still seems odd. Is this normal, or has anyone else experienced this? TIA. __________________

10-19-2010, 10:48 AM	#3
chrisj Hooch Brewer-Shine Sipper View User's Garage Drives: 2009 5-dr LB Join Date: Aug 2010 Location: S. Jesus, Kentucky Posts: 646	Thanks man. I thought we might be having problems. Whew. :) __________________

10-19-2010, 12:15 PM	#5
eTiMaGo vroom vroom View User's Garage Drives: lil red 5-door Join Date: Sep 2006 Location: Bangkok, Thailand Posts: 7,744	yep, I think they call it hill assist, it'll downshift earlier when going uphill too. __________________ The price of freedom of religion, or of speech, or of the press, is that we must put up with a good deal of rubbish. - Robert Jackson Bye bye 1NZ...

10-19-2010, 01:10 PM	#6
chrisj Hooch Brewer-Shine Sipper View User's Garage Drives: 2009 5-dr LB Join Date: Aug 2010 Location: S. Jesus, Kentucky Posts: 646	It was just strange, since I've never had a car that did that. __________________

10-20-2010, 01:07 AM	#9
chrisj Hooch Brewer-Shine Sipper View User's Garage Drives: 2009 5-dr LB Join Date: Aug 2010 Location: S. Jesus, Kentucky Posts: 646	Manual? LOL! __________________

10-19-2010, 10:44 AM	#2
CTScott ULTIMATE View User's Garage Drives: 09 5dr LB, 2x 08 3dr LB Join Date: Oct 2008 Location: USA, CT Posts: 13,460	I think Toyota decided that the Yaris needed a Jake brake, like a tractor trailer. I definitely notice the same behavior with my A/T. If you are going down hill and don't the brake, the car coasts. If you tap it, the A/T engages and you get some serious engine braking.

10-19-2010, 12:08 PM	#4
BLH Drives: 2007 Yaris Sedan Join Date: Apr 2009 Location: CT Posts: 281	Normal on my 2007 sedan. Depending on my accelerator pedal position. Mine also stays in 3rd after getting to the bottom of the hill.

10-20-2010, 12:10 AM	#7
krolos Drives: 2008 yaris sedan Join Date: Jul 2010 Location: wa state Posts: 90	Ya this is normal, I forgot the name of that feature but the owner manual says somthing about it.

10-20-2010, 12:47 AM	#8
SimTronik Machinist View User's Garage Drives: Yaris sedan 2010 Join Date: Sep 2010 Location: Sts-Anges, Quebec, canada Posts: 198	Same here. techno yaris lol

10-21-2010, 06:44 PM	#10
2007yariz Drives: Yaris sedan Join Date: Jun 2010 Location: Northern Virginia Posts: 142	OH! That's engine braking. I always thought is the ABS doing its job...

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