Santa FE SM (2001-06) :: Cruise Control - Transmission Downshifts And Back Occasionally
Dec 5, 2013
I have a 2005 Sante Fe 2.7 4WD with 168K miles. Last week I'm driving at 45 mph with cruise control on and it just downshifted to 3rd and then back to 4th in about 3 seconds.
It did this on the highway at 55 as well. I used the manual shift option and it works perfectly. It still shifts smoothly in auto mode but around every 5 minutes or so it will downshift and back again.
Here's what I know.
1. Using automatic mode in Drive it shifts smoothly from a stop to speed but then downshifts and back occasionally. It does this with Cruise Control on and off.
2. Using the manual mode and shifting on my own works perfectly. Even when the cruise control is on it doesn't skip or downshift.
What it could be?
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Same car I posted about a couple of days ago. It was running fine. My son was driving on the freeway, and tapped the brakes to disengage the cruise control, and the transmission just stopped working. It was not in gear after doing this and the transmission would not engage. It was nothing like a slipping transmission. The engine just revs with no resistance.
Got it towed home and checked the codes: P1529, generic 'Check Engine' light from the TCU; P0760 Transmission solenoid C and P0765 Transmission solenoid D. I have googled these codes individually, but not sure how they tie together.
Oh, I overfilled the transmission. Probably a quart too much because I didn't know how much extra I needed for the torque converter. I doubt this is the issue, but I will drain the excess. Where to check next?
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I have a 2003 2.7 auto. Quite suddenly the speedo and cruise control have stopped working. Everything else works just fine...
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My 2002 Santa FE's cruise control has stopped working, light comes on but no hold or anything, any obvious faults they have that I can try. I checked the fuse, that's OK...
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I was recently on a road trip, using my cruise control extensively (like usual) when it just quit working. I tried to reset to a lower speed, but it would rev itself back up to the original speed. I turned off the cruise control, drove a mile or so and turned it back on. The cruise dash light came on, but the right control buttons no longer worked. No check engine light. It's never worked since.
My local tire shop checked codes and found the tcm not communicating with the mod (cruise module?). I'm looking to take it to the dealer, but I'd like to be better informed with what I may be dealing with before I get there.
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I have a 2005 Santa Fe 2.7 ... My cruise control on the steering column began to work only intermittently. Now it doesn't work at all. It will turn on but won't set.
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My cruise control has been acting very funny lately. The light comes on normal all the time when I press on/off. However about half the time the cruise does not set when I press set. By this I mean, on Monday this week my cruise refused to set on my way to work, but on my way home it worked just fine. On Tuesday, the cruise worked perfect all day. Today, it did not work going to work or coming home.
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Never had any issues with it before and was working fine on a trip a couple of weeks ago. On the way home I had it on, we stopped to get some food, and then when we started up again cruise control wouldn't turn on at all. I tried turning on and then setting, but nothing happened so I don't think it's the light. Checked the fuse and it looks fine (no noticeable distortion or break to the wire anyway) and brake lights all work.
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I have a 2006 santa fe with th 2.7. The tail lights light up both films on both sides when you turn the lights on. Now the cruise control will turn on but it won't set the speed. I changed the brake switch and i tried to put it in the same exact spot. The old one was not sticking or anything. Now I was told the switch might need reset or something. I looked everywhere for shorts and sealed them up. Checked all the fuses which all are good. So im not sure whats going on. Now when you press the brake the small fuse will burn out.
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I have a 2004 Santa Fe GLS that the cruise control just stopped working. It will not turn on when I press the ON button. Could it be a blown fuse? I recently had a new AC compressor installed. Could it be related to that? Maybe something didn't get plugged back in?
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My Santa Fe 2004 V6 2.7L 97K recently downshifts and revs up while I'm driving. It happened about a week ago once or twice. I thought I was stepping on the gas too aggressively. But last 2-3 days it came back and more frequently to a point that I'm afraid to take it to the highway.
I checked the transmission oil, it looks pink and full. What problem am I potentially looking at? Would it be cheap to fix? Do Hyundai dealers cover it under the 10-year/100K mile warranty thing?
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Car is a 2001 Accent 1.6L 4 door automatic with about 130,000 miles on it.
Transmission shifts correctly into reverse, drive, neutral as well as manually shifting into 2nd and 1st. When in drive I will accelerate perfectly through 1st gear, shifts smoothly into 2nd gear then the problem arises. The car will shift ok into 3rd, but if I let off the gas to coast to a light or a corner, etc, the transmission physically downshifts or locks up in 3rd (like driving a stick, ie the car has drag like the converter is locked instead of freely coasting). It feels like 3rd gear but could be 2nd. When I go to accelerate again without coming to a stop the car has this same feeling of drag with no power and speeds up very slowly (almost like i am pulling something behind the car or am in a gear that is too high). If I give it enough gas to force a downshift it really slams that downshift. While the car accelerates through the rpm range after this downshift it will rev past the normal up-shift rpm until it finally slams into the higher gear. Or if i hold the gas steady at the higher rpm the car will suddenly slam into the higher gear. after all of this nonsense the car drives perfect through to OD. The problem is much worse going uphill and is consistent every time it is driven.
Also, sometimes the car would shake and vibrate when hitting the gas during this "drag feeling" until i let go and did it again. This is pretty random compared to the main problem but also seems to happen while the car is in 2nd or 3rd. This has been happening for about 5 months now and as far as i know was sudden. And on another note it suddenly was shifting fine the other day while driving it. I haven't driven it since then but this completely stumped me, as most problems will do when they magically disappear.
There is no check engine light, OD works fine and the car does not go into the safety mode where it will shift to 3rd gear on the highway. It's city driving that is the real headache (2nd and 3rd gear difficulties). Would the pulse generators cause this? bad TCM? i haven't scanned anything yet but will be within the next few days(at pep boys or similar) as well as ohming out pga and pgb. i have found resistance readings for pgb but nothing for pga, what should pga read? fluid is also within acceptable amount and color.
My initial thoughts were dirty or stuck solenoids/valves in the valve body and i was going to do a filter and fluid change with a quick valve body cleaning and check. But after researching on here I am starting to think it may be electrical. The only reason I put my scenario up is because it seems that everybody else who is having a similar problem is also having the "no reverse" or "shifting into 3rd on the highway" problems while i am not. On a random note, for my own piece of mind, how do the pulse generators work? Are they just reading ticks on a gear cog in the tranny or something? fluid flow?
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I found two times the cruise control auto on by itself while I was driving on the road.
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The Crusie control has a habit of not always operating. Sometimes it will sometimes it wont. I have tried switching off the ignition and restarting without success.
On occasions after not working for 30 or 40 miles it will start working again. Difficult to get the dealer to do anything as they cannot replicate the fault.
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My 2007 Santa developed these symptoms recently and need to know if they are related or independent.
1) ESC off message is always lit and button doesn't work.
I checked and replaced fuse 19 in engine bay. Light didn't lit up for next 500 feet and I was able to turn and off with ESC button near knee panel. after that it was back on. My guess is one of 2 Or both 40amp relays in engine bay for ESC is/are bad.
2) Cruise control on/off works but Set doesn't and Cruise is inoperable.
Don't see any fuses for cruise control in engine bay or interior fuse panel.
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Got our 2014 back in March and it still hangs in fourth gear after downshifting with the cruise on. Downshifting from 6th to 5th for small hills is fine but on steeper hills when it drops to 4th and hangs in there uncomfortably long.
What I've been doing is switching over to manual and bumping it up to 5th and then 6th. When I don't, it will hang in 4th and rev high and then eventually shift into 5th and 6th one right after the other long after the road has leveled out..
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I own Sta Fe 2014 DM CRDi 2.2L diesel engine automatic transmission. Recently I am encountering a problem on my unit, firstly the ABS, ESC, and Hill descent alarm indicator shows on my dash brought it to Hyundai and they replace wheel hub assembly on the rear right wheel. after a week it goes lit again but doesn't stays long it disappear right now it happens from time to time only. Secondly my cruise control wont engage the light stays on but could not keep the speed, Ive check the brake lights they are not busted. The service technician doesn't now what to do and no error code showing on the computer. Last is during start up transmission on neutral or park position the speedometer fluctuates then warning light on ABS, ESC appears.
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2010 UK Santa Fe manual box, suddenly will not set Cruise Control. At same time gear change advisory indicator also stopped working. OBDII tester will not initiate to check things out but first time I have tried this. Fuses checked all OK (I think).
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I have to press Cancel before I can get my cruise control to work. I had a problem about a year ago where my cruise control wasn't working, and found out that a blown brake light fuse was the problem. Now I turn my CC on and the "Cruise" light comes on, I then press the set button, and nothing. I then press the cancel button and then the set button and then the "Set" light comes on.
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My previous cars with adaptive cruise control didn't do this, but when the vehicle brakes itself, there is a very loud click. I'm assuming it's normal operation, but figured I'd ask here anyways.
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I drive a 2001 Toyota Tacoma 5 Speed manual and as recently as last Friday it seems to have developed a problem with third gear. Occasionally the gearshift will actually pop out of third gear back into neutral. It has happened randomly, but also it has happened at least once when I hit a rather large bump, it seemed to have literally knocked it loose from third gear. On one occasion I tested to see if I could pull it out of third gear without stepping on the clutch, and it worked once, but I have tried it again and it doesn't always let me.
To counter this problem I have been just pushing on the stick all the while in third gear to prevent it from popping out and that seems to work, but I'd like to find a real fix for it, and as usual, if possible, a cheap one.
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