2006 Toyota Tundra: adaptive cruise control problems

Filed Dec 5, 2010 · Acceleration, Electrical · 23,550 miles · VA

My 2006 toyota tundra pickup truck has developed maximum acceleration on seven (7) occasions when I made hard accelerations in order to pass other vehicles while also engaging the resume mode of the cruise control. On the first two (2) occasions I applied the brakes heavily with no results and my vehicle continued to accelerate and I was forced to knock the truck out of gear and the engine continued to run a max rpms and I keep pumping the gas pedal until the engine finally slowed. The last time a similar event occurred I had a open highway after passing a slower vehicle so I cut the ignition off and my vehicle slowed down, I turned the ignition back on and my truck went to max acceleration again. The third time I cut the ignition off I heard a thump in the floor board close the gas pedal and the vehicle slowed and operated normally when I turned the ignition back on. I was traveling on a interstate the first two times this problem happened and just avoided hitting other vehicles. On the last occasion I had time to try a different solution. In each event the breaks were not effective at all. On 12/2/10 my toyota dealers service dept. Checked my truck after I made the above complaint and found no problems. In the past I had raised the issue with the dealers service dept and regional toyota rep. And was told by both that the 06 tundra did not have acceleration problems. *tr updated 01/17/12 updated ivoq 03/30/12

Filed Feb 15, 2010 · Acceleration · NY

2006 toyota tundra cruise control, when in use and has to compensate for speed reduction goes into full throttle, no gradual speed increase, I have to immediately hit brakes and or turn off cruise control. Happens all the time when in use.

Filed Feb 8, 2010 · TX · crash

2006 toyota tundra., low speed ,no cruise control on ,weather drizzle. Going up a hill acclerated suddenly . Spun out crossed a median into oncoming traffic hit a guardrail and another car.

Filed Nov 21, 2009 · Acceleration, Fuel system · 36,000 miles · AZ

I am filing this complaint with reference to odi #' s 10183308 and 10288886. These odi's were put in by me. These are lead up's to this complaint. After the collision with the polaris I drove my vehicle home. The next day I drove the vehicle to tim's toyota in prescott az. Where the vehicle was purchased. They looked at the vehicle and said that they would call for a factory rep. To look at my vehicle. This was to be on nov. 9, 2009. I did drive my vehicle to yarnell az for deer season. I drove the vehicle back to prescott to meet with the factory rep. He did whatever they do and said he had all the information he needed. He also told me to go ahead and get an estimate for the repairs but not to have it repaired until I heard from toyota. The preliminary estimate is just shy of $2000.00. This estimate was given to jeff locke to be sent to toyota. My question to all of this is, why did toyota allow me to drive this vehicle after the meeting, when they know that I am driving a time bomb. Also why hasn't national highway safety involved itself into an investigation of its own? I now know the verbiage for the incident. It is called " sudden unintended acceleration" which is tied together with the cruise control, throttle body and other electrical, vacuum controlled , mechanical units. Look it up for yourselves. It will open your eyes to what is going on with this condition. My vehicle sits in my garage so anytime national highway safety wants to do an investigation is fine with me. Toyota has not done a proper evaluation of the issue. My insurance company is behind me 100% and is now going to contact toyota to try to find the cause for "sudden acceleration" and cruise control units to behave the way that they are. Racing to over 5000 RPM's and hunting gears the way they do is just not the way they are supposed to operate. Toyota would have us believe that a floor mat is at fault and now the whole pedal assembly. Or is it that we don't know the gas from the brake pedal?

Filed Oct 18, 2009 · Transmission · 36,000 miles · AZ · crash

Toyota tundra 2006 double cab 4wd automatic transmission. I was 4 wheeling and stopped behind a polaris, by approximately 5 feet. I was in drive and 4wd and brakes applied. I stopped because the polaris had stopped. All of a sudden with the brakes applied my tundra lunged forward at a very high RPM crashing into the polaris. At that point I put the transmission into park and shut the engine off. Had I not responded with the action I took I would have shoved the polaris with 2 people into a very deep wash. Needless to say there is a great deal of damage done to my toyota. The toyota has major damage to the front end. Had I not taken the action that I did, we all would have ended up in the deep wash with major injuries. When I arrived home I immediately called tim's toyota in prescott arizona where the vehicle was purchased. The 2 people that could help me with the situation were not available so a call to them tomorrow will be in order. I have not contacted my insurance as yet as I feel that toyota is the responsible party for the accident. I had written to you quite a long time ago regarding the cruise control surging to 5000 RPM's when approaching even a minor incline. So I don't use it anymore. I am afraid to drive my truck into my garage for fear that the truck will lunge forward, only this time it will crash into my HVAC and water heater, both are on propane.

Filed Feb 23, 2007 · Acceleration, Transmission · 3,500 miles · AZ

I was driving north out of phoenix arizona on I-17 just past black canyon city, with my cruise control set at 75 MPH. There is a very long hill going north to sunset point. Prior to approaching the hill I canceled the cruise so that the transmission wouldn't hunt gears. I drove up the hill at 65 to 75 MPH (no cruise). When I made the top of the hill at sunset point and leveled out, I accelerated the vehicle to 75 MPH and hit resume. The engine raced to 5200 RPM. I redline at 5700 RPM. The transmission did not follow suite. It was as if I was in neutral revving the engine. I immediately canceled the cruise and drove a mile or so without cruise, then decided to try it again. Everything worked normal. I have been in contact with my dealers service dept. And they are baffled. They have not looked at it as yet due to their schedule. As soon as they can get me in they will. They did say that there should have been a check engine light, but there was not. They are hoping that the onboard computer recorded it. Not only is this a major safety hazard, but it could have caused my engine to blow up. I'm not sure what reaction my wife would have had. She drives all the vehicles we have and they both have cruise, yet she is not that familiar wit RPM's and redlines and the issue that follow. When I have allowed the cruise to pull me up an incline it usually drops 1 or two gears and the RPM's are around 3000 to 3200. This I consider normal. I had a 1999 toyota tacoma with a six cylinder engine and cruise, so I am very familiar with the system. I purchased the vehicle from tim's toyota in prescott, I also brought to their attention a noise that I heard in the right front suspension and they are going to take care of it under a new recall that has not even been sent to customers, nor was the service dept aware of it.

Filed Dec 28, 2006 · Acceleration · NY

With cruise control engaged at 55 MPH any increase in incline will initiate a one or two gear downshift and substantial throttle application. Also when in cruise control using hand control stalk to increase speed slightly will initiate a one or two gear downshift and substantial throttle application. Both of these situations can startle the driver because of the abrupt changes and could cause an accident leading to injury/death.

Filed Nov 6, 2006 · Acceleration · VA

2006 toyota tundra:when cruise control is engaged, any hill or even minor incline initiates a downshift of one or two gears accompanied by full throttle acceleration does not occur, even on major hills sans cruise control. Dealer says this is normal. Action should be taken before an accident/death occurs.

Filed Jun 19, 2006 · Acceleration, Brakes · TX

Ltr from (tx) reporting problems with his 2006 tundra motor vehicle. *ts the cruise control has a problem down shifting 2 gears on minor grade for no reason, which caused the engine to rev to over 4000 rpms. The vehicle would not shift into overdrive while driving on the freeway. The brake will fade while sitting at a traffic light. The stopping distance on the vehicle was much longer than any other vehicle the consumer had driven. The vehicle was getting very poor gas mileage. There was an odor from the air condition. The tire sensor light illuminated, but it was resolved.

Filed Jun 5, 2006 · Electrical · 9,750 miles · MD

05/20/06 driving at approximately 62 MPH with cruise control on. Suddenly truck simply shuts off. It was as if key had been turned off. All systems were dead. Drifted over to side of road and came to a stop. After about 20 minutes of continued attempts was able to start truck and returned home. Dealer came with replacement SUV and took truck back to dealership. Have heard nothing since. Suggested they replace computer module, as replacing fuel pump did not eliminate problem.

Filed Apr 19, 2006 · Acceleration · 50 miles · VA

2006 tundra - have had truck only 2 weeks and took road trip. When using cruise control and starting up a modest hill vehicle will kick down from overdrive into drive, even though w/o cruise vehicle can handle hill fine in overdrive. This will bring rpms from 2000 to 3000. This is merely annoying. Sometimes will kick down past drive and into 3rd gear, bringing rpms to 5000 and cause the vehicle to accelerate rapidly on hill. This seems unsafe, especially in crowded or wet conditions. Have found numerous complaints from other tundra owners online. All say dealer and toyota claim this is "normal." toyota corporate office told me they consider this "normal" and recommend I not use cruise control in hilly areas. Must not have hilly areas where toyota engineers live.

Filed Oct 26, 2005 · Acceleration · 300 miles · FM

2006 tundra 4 door overspeed when driving in cruise control. When driving at highway speed with cruise control on and approaching a slight incline, the vehicle will drop into passing gear and the throttle will go to full throttle. This will cause the operator to lose control of the vehicle, especially on a rain slick road. This has happened many times, and although I am aware that it could happen, it still startles me when it occurs. If close behind another vehicle, this could lead to an rear end accident. The normal progression should be dropping out of overdrive, with a gradual acceleration to maintain set speed, and then back to overdrive when set speed is obtained. Dealer called toyota and they claimed this is normal operation. Documented with toyota dealer, and now with the federal safety agency. When accident occurs as a result of this overspeed, hopefully toyota will reset the computer control module to fix problem.