Question about 2009 Toyota Highlander

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Cruise control does not work on downhill on my 2009 highlander sport...the car keeps increasing its speed.

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  • Toyota Master
  • 6,927 Answers

You need a code reader to read the codes to see if the input vehicle speed sensor may be at fault.

Posted on May 13, 2010

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Related Questions:

1 Answer

What causes the speed to fluctuate when you set the cruise control?


if it just started to happen you may have lost a magnet off the drive shaft. If it is a front wheel drive then you would have two magnets on the flywheel if you lost one magnet it would cause problems.
The other possible cause if the sensitivity setting is set too sensitive then the cruise control will surge .
Setting it lower will allow it to slowly respond to speed changes but if going up hill it will take a while to increase the acceleration . Or going down hill it could accelerate too much before the cruise control realises it is going downhill
Also a very wet road can cause the wheels to spin and cause the cruise control to lose the plot and accelerate to dangerous speeds.
I have had this happen to myself once so be wary of cruise control use in wet conditions.

Jan 14, 2017 | 1992 Honda Accord

1 Answer

When cruse is set, why does it not hold going down hill


Cruise control only maintains speed by utilizing the accelerator. To speed up it increases it and during slowing is removes it. The cruise control will not apply brakes in the event of a steep downhill run. In this case the vehicle will start to accelerate in the same manner as if the cruise control was not engaged. But in theses cases, most cruise controls, once the speed exceeds a certain amount above the set speed, will auto-disengage as a safety feature.

Oct 04, 2016 | 2004 Chevrolet Silverado 2500HD

1 Answer

Cruise control not working


cruise controls are dependent on the following sensors all working together
brake sensor
clutch sensor
auto--vehicle speed sensor
rpm's sensor
fuse for the cruise control
cruise control switch either or all not working will stop the cruise control from engaging
road speed at which you can engage the cruise control has to be above a reset speed before it will cut in and work

Sep 05, 2015 | 2009 Chevrolet Chevrolet Equinox LS

1 Answer

My 2011 Toyota Camry cruise control does not hold speed at all, when going downhill; is this normal?


Yes, cruse control only controls engine functions, it does not control braking.

Jun 22, 2015 | 2011 Toyota Camry

1 Answer

2010 Nissan Pathfinder Cruise Control issues


First I'll assume you haven't read the owners Manuel, Cruise control is not perfect on any vehicle. if coming to a hill put foot on gas to help rpm, going down hill put foot on brake to keep same speed, cruise control operates off of engine vacuum. Speed sensors can be affected by putting on smaller or bigger tires than what is on drivers door.

May 24, 2017 | 2010 Nissan Pathfinder

1 Answer

My 2011 Sonata cruise control stops working going down steep hills. The set light goes off. I had it set at 50mph but applied brakes when it increased to 70mph. Dealership says they can find nothing...


going down steep hills will all but over ride a cruise control, since the motor is trying to keep the vehicle slowed to what your desired speed that you set , unfortunately this doesn't always work,, as your speed increases, the motor can't keep the speed reduced, when you apply the brakes, the system shuts off, cruise controls were meant to be used pretty much on long flat surfaces with Low inclines ,,

Aug 25, 2011 | Hyundai Motor 2004 Sonata

2 Answers

2011 Hyundai Sonota Cruise Control: My new sonota's cruise control does not brake the vehicle when going down a hill. The car begins to increase its speed by over 20 km per hr and would exceed that amount...


I just bought a 2011 Sonata and am experiencing the same problem. Going downhill with cruise set at 55 mph; speed increased to 70 mph and was still accelerating (from the downhilll grade) when I finally pressed on the brake.
This is not normal. My Honda Accord never varied from the cruise setting by more than 3 or 4 mph ... going uphill or downhill.

Oct 12, 2010 | Hyundai Motor 2004 Sonata

1 Answer

Cruise control will not maitain the speed it is set on. going up a hill it gets slower and going down a hill it gets faster


My experience is that cruise control works on level roads, uphill you have to control speed yourself same for downhill. Exception is very powerful cars. Did it maintain speeds before? (uphill + downhill)

Mar 08, 2010 | 1994 Buick Park Avenue

1 Answer

2003 Toyota Highlander V6 Cruise Control problem


check to make sure you don't have a vacuum leak to the cruise system. sounds like it is loosing vacuum and taking a while to build up.

Jun 16, 2009 | 2003 Toyota Highlander

1 Answer

The indicator light goes on, but the cruise doesnt kick in. when it was working it was not working correctly. uphill it would not maintain speed and downhill it would increase in speed.


First, there was a recall for many Ford Motor cruise controls. Have a dealer run your VIN number to see if you are included or the repair has already been made. If you look at the cruise control cable and trace it back from the linkage there should be a vacuum hose connected to the part that this cable originates from. If you have a vacuum source check both the vacuum line and the part to see if there are splits or holes leaking vacuum. Your cruise will not work properly with a leak. Any other loose vacuum lines can affect it too!

May 13, 2009 | 2004 Lincoln Town Car

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