Problems with 2006 Chevrolet Cobalt VEHICLE SPEED CONTROL

Failure to communicate with tcm/ecm/pcm. this problem has caused several occurances where driving the vehicle has been hazardous. because of either the wiring or the tcm itself, i, the consumer, have nearly been in 2 accidents. at first i was told that it was the power steering assist module. replaced that and problem still occurred. when the problem occurs, the gauges jump up and down and completely stop working (speedometer and tachometer), transmission shifts extremely hard when accelerating, power steering illuminates in the data information box which in turn causes loss of power steering (replaced power steering assist motor, issue still happens, 1 occurance of loosing power steering and being able to stop before going off the side a mountain when trying to maneuver a right hand turn), check engine light illuminates, when shifting from park to reverse, reverse to neutral, neutral to drive, the transmission engages very hard and results in an audible "clunk". 1 occurance of vehicle switching gears into neutral from drive, while driving (shift lever still in drive position),passlock light also illuminates in dash. vehicle consistenly acts as it is going to stall (headlights and dash lights dim). checked alternator and battery, both in optimal working condition. presenting diagnostic code include p0700 and u0100. vehicle maintanence has been performed at 3,000 mile intervals but has been pulled off the road due to the 2 occurances of near accidents. vehicle has been experiencing issues for several months prior to removing it from opperation. i know for a fact, this cobalt is not the only one having this issue.

The vehicle can mess up from either driving down the highway or trying to accelerate the vehicle on city street or highway that the engine stalls and says "engine power reduced" the check engine light along with the t/c light comes on. it happens multiple times in just 30 minutes of driving, more for longer trips. it will even do it in 10 minutes of driving. you have to pull over and turn vehicle off for a few minutes and then it drives fine for maybe a mile down the road before it does it again, or, you can continue driving it with the pedal all the way to the floor board trying to get speed which if you do the car shifts gear very badly and rides rough but when you're trying to get to work on time you do what you have too. i have taken the vehicle to a mechanic 3 times over this. throttle body was changed (twice), they replaced the computer and cleaned the wires. one mechanic was the chevrolet dealership and they told me they needed it there when it happened to better diagnose the situation. i do not have the ability to let them just keep my vehicle. i have had this vehicle for a little over a year. i bought it used. i have a loan on the vehicle and i am scared to drive this any further than i have to because i know the vehicle will mess up. i have two children that i have to put in this vehicle to take places. this vehicle is extremely unsafe!!!!!!!!!!!!!!!!! i want help with this situation!! this first happened in november of 2016. i do not know the day specifically. i do remember it did not fall under the dealerships warranty that i got it from.

My ignition ion switch is very loose some times can't start car. my locks unlock and lock by them self..this happens while driving and while sitting still.

Tl* the contact owns a 2006 chevrolet cobalt. while driving various speeds, the steering wheel became difficult to maneuver when making left or right turns and the power steering warning indicator illuminated. in addition, the speedometer failed to display the actual speeds. the failures recurred numerous times. the vehicle was not taken to the dealer. the vehicle was not diagnosed or repaired. the contact also stated that the vehicle would jerk and hesitate to accelerate when depressing the accelerator pedal. when the accelerator pedal was depressed again, the vehicle would accelerate without warning. the manufacturer was not made aware of the failure. the approximate failure mileage was 150,000.

Power steering shuts off at intermittent times. the rpms go up and down and car sputters when this happens. this happens when driving and when the vehicle is standing still. it also almost dies at stop lights and stop signs. this happens on the highway and on city streets.

Tl* the contact owns a 2006 chevrolet cobalt. upon merging to enter the highway, the accelerator pedal became stuck and the brakes failed to respond when the brake pedal was depressed. the contact had to switch lanes, place the vehicle in neutral, and coast over to the side of the road. the vehicle stalled and was towed. the vehicle was not diagnosed or repaired. the manufacturer was notified of the failure. the approximate failure mileage was 249,900.

My problems are came about with the electronic power steering on this vehicle as i have searched and found the problem too be very common. found that it has been widely recalled including my model year with numerous complaints too the nhtsa. the first time it happened i was getting ready too go to a doctors appointment, the power steering message came on the dashboard, everything seemed too be working except the speedometer and it drove fine. on the way back home however the car would no shift past first gear. i took it too a mechanic that lives next too me. he said the wiring harness was bad, replaced it, got it back. drove fine with no problems for three weeks, even the driver front blinker was working which had never worked since i got the car back in march of this year. then after the three weeks the power steering message came back on and all the same symptoms are back, no speedometer, hard shifting if any, it even caused the engine light too come on this time which an auto parts store determined too be a random misfire. i changed the spark plugs and it went off. my theory is that the tcm is not grounded correctly too handle this and shorts out as i have found that others have grounded the tcm and it has fixed all the problems too their claim. i searched recalls on my car using the vin and my car is not listed on it and since this has been recurring and i've had all the problems everyone else has noted i feel that is a great concern. the message and all the effects happen as soon as i start the car if it's going too happen (so far). it first happened on the date indicated and then again on 11/15/2016.

I was driving the car on the highway, going about 38 mph and the power steering warning beeped and displayed on my dash. the steering tightened up a bit, and the car slowed down, as i was driving (i don't know what the car slowed down to because the speedometer then dropped to zero, but the tachometer continued to rev (i want to say) between 2 & 3 rpm, while the car was still in motion. the locks were clicking up and down too while this was all happening. then the car bucked and the speedometer began working. the power steering warning light remained lit during the whole time. i was able to pull into a parking lot for safety. this was clearly a driving safety issue due to the vehicle slowing down when the power steering warning light came on. there were other affected parts, but i was not able to select the boxes: electrical; other (speedometer) this also happened today: 07/10/16, prompting another complaint to be filed.

Tl* the contact owns a 2006 chevrolet cobalt. while driving 40 mph, the power steering seized and the engine light illuminated without warning. directly after, the vehicle jerked and accelerated without warning and the speedometer malfunctioned. the vehicle was not diagnosed or repaired. the manufacturer was not made aware of the issue. the failure mileage was 182,000.

After recall on ignition switch my car still stalls and the power locks go up and while driving and it sometimes will not come out of park

I was driving on the highway and my traction control came on. i lost steering control and my car started shifting rough and eventually my power deminished. now comes on periodically for a couple days then will go off and drive fine. also my airbag light stays on for passenger and shows it to be off. has done this since i bought it.

I was stopped at a stoplight. when the light turned green i put my foot on the gas pedal and the car would not move. as my foot left the brake pedal it still did not move. while still on the highway, i turned the car off and back on. once i turned it back on, the car was able to move as normal. the following friday, the same thing happened (i was stopped at a stop sign and could not accelerate afterstopping.) this happened multiple times (i turned the car off and on multiple times) and finally, as i was driving normally again with my foot on the accelerator, the car slowed down on its own and came to a stop on its own, as my foot was still on the accelerator. *tr

Traction control light came on. car started running very rough and then lost all traction and shut off. *tr

The vehicle started to emit an odor of fuel when parked, not running. a few days later a visible puddle of fuel was under the body of the car. this has been recurring every day since the first occurrence. now a visible leak from above the fuel tank can be seen dripping fuel at an accelerated rate. *tr

The first time this particular problem began, because there have been oh so many others, i turned on the car and a power steering messaged appeared. there was no check engine light or anything else, just the "power steering" message. this happened intermittently for about 2 months. then one evening while accelerating from a stop light, the car started to hop, the "power steering" message came on with a dinging alarm, the car slowed down to about 5 mph, and the power steering was gone, along with the breaks. it was extremely difficult to turn or stop the car. we were able to get it off the road, where we turned the engine off and on a few times. each time with no success in fixing the issue. finally after letting it rest for about 15 min, we were able to turn it on and it returned to normal. since then, intermittently the "power steering" message comes on and dings, the car hops, and the power steering goes out. i took it to the dealer and they said the steering column needs to be replaced at a cost of $800. i can't understand this, since my steering column has rarely been move, maybe a total of 30 since i bought the car in 2006. i am the original owner and very few people, outside of myself, have driven this car, lending to minimal adjusting of the steering column. *tr

On the first week of june 2014, my 2006 chevy cobalt went in for the safety recall 13454 (replacement of ignition switch). (this was the second recall this car has had.) on june 19th, 2014 with the new ignition switch installed by the local chevy dealership, while driving the car in town, at speeds of 20 and 30 mph the car lost power to steering, brakes which made difficult even to stop and maneuver safely off the road. the car lost most of the engine performance but stayed running. the car was then turned off and restarted, with dash light warnings of engine light, tc light and a car security emblem light on. the car ran with very limited power and strange clicking noise which was coming from the shifter. i have cell phone video of the shifter nob clicking along with cell picture of the dash warning lights that are on. car had to be "man handled" to get it to a safe destination. the battery was disconnected a then reconnected, with the thought of resetting computer. when battery was reconnected the car was 100% back to normal. for how long, is anyone guess, this strange occurrence has happened more than once. the car is scheduled to go to the chevy dealership for further diagnostics. they informed that it will be a week or so because their all booked up. what a pain in the (you fill the blank). if i had enough $$ to replace the car, i would have this car crushed so that i would no longer be responsible for any accidents it may cause. *tr

Tl* the contact owns a 2006 chevrolet cobalt. while driving at approximately 45 mph, the vehicle stalled without warning. in addition, the contact stated that a sulphur odor emitted from the vehicle. the vehicle was able to restart after an hour. the vehicle was inspected by an independent mechanic but was unable to diagnose the failure and the failure recurred. the vehicle was towed to the dealer where it was repaired under nhtsa campaign numbers: 14v047000 (air bags , electrical system) and 14v171000 (electrical system) but the failure recurred. the vehicle was taken back to the dealer where it was diagnosed that the throttle body needed to be cleaned and reset and the battery needed to be replaced. the vehicle was repaired but the failure recurred. the manufacturer was notified of the failure. the failure mileage was 153,113.

I was driving east on us hwy 2 at 55 mph when my car suddenly dropped speed to 35 mph and the engine light came on and the dash read red eng pwr. it was a very scary experience, i was able to coast to a side road as i live in northern wisconsin and there is not a shoulder to pull on to due to the high snow banks. i parked the car and shut it off and it had no power no speed control. i let it sit for 1 hour and when i turned it back on the engine light was off along with the dash reading and the car was normal. this is awful! this car is awful! *tr

I was driving on busy road car keeps almost stalling out. start up the car after 10 minutes car drives fine. next time i'm driving car is not accelerating. then car keeps stalling out. *tr

2006 chevy cobalt. consumer writes in regards to ignition switch recall. *smd the consumer called the dealer regarding the ignition switch recall. they informed him, it would be at least 3 weeks before the part would be available. the consumer stated with only 19,000 miles on the vehicle, within the last 6 months, the power windows stopped working and last month, the cruise control stopped working.*jb

Driving on 127 north toward lansing michigan at 75 miles per hour when the engine lost control causing the car to go no faster than 15 miles per hour on the highway. this is a safety risk to the driver as well as others. i have replaced the gas peddle sensor which did not correct the problem, next i will replace the throttle body. the codes can be reset to correct the problem temporary if you purchase a $300 dollar code reader. i have also had to replace the front bearings twice. on 2/16/2014 i hit a pot hole and knocked a bolt loose that holds the cars frame together so at this point the car is unsafe to drive. at least i'm hoping its loose and not broke. the car shakes terribly due to the frame bolt. this is a big safety concern. *tr

Tl* the contact owns a 2006 chevrolet cobalt. the contact stated that while driving 65 mph, with the cruise control activated, the brakes seized when depressed and did not deactivate the cruise control function. the contact crashed into a median strip and upon impact, the air bags failed to deploy. the contact sustained bruising, whiplash, and shoulder and neck injuries. the vehicle was neither repaired nor diagnosed. a police report was not filed. the manufacturer was not contacted. the failure was approximately 29,000..

Car stalls due to throttle position sensor defect. this happens when i come to a stop and the weather is cold. the choke gets stuck in either the open or the closed position. this has happened numerous times on numerous different occasions. i have been told by dealerships that this is a known problem which is why they keep the part in stock. however chevy/gm has not issued a recall. this part is far to expensive for me to replace. i would consider this a hazard due to the vehicle stalling in mid traffic which could result in an accident. i can keep the vehicle running by having one foot on the brake and one foot on the gas and putting the car in neutral as i come to a stop. this too could result in causing an accident as two feet are not suppose to be used to drive. *tr

This vehicle is not safe to drive and was not built right. the manufactures knew for many years that the chevy cobalt 2006 would have a leaking gasoline system, and they kept this faulty defect to themselves for many years before bring this issue to the customer. i was driving the vehicle leaking gas for a few years unit the crack was large enough for me to smell it, while not driving, the ignition switch; with the key in it while the car was in park has started the car engine without turning the key. the key wont come out of the ignition switch. the car has turned off on me on the freeway more than 9 times. the car turned off on me going in reverse, couldn't control the brake and steering power to move out of the pole . while driving in the freeway i have had to quickly react; putting my emergency lights on and praying to god a car doesn't hit me, while with the left had side is quickly waving at the vehicles coming from behind to stop. please help me. i have two children and im tired of being exposed to the dangers of this m defected life threatening vehicle. [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6). *tr

2006 chevrolet cobalt. consumer states several issues with vehicle related to recalls *tgw the consumer stated there was a smell of gasoline inside the vehicle, five sensors were bad, there was a problem with the fuel pump and fuel injection system. the rpm's jumped, when the vehicle was in cruise control mode, the cruise control would shut off for no reason. the consumer had a difficult time starting the vehicle, after she filled the tank, the vehicle would steer to the left, and there were times when the vehicle would jump out of gear. *jb

The power steering failed on yesterday september 6th, 2011. the mph needle does not move at all on the rpm needle. in order to get the vehicle to move what it seems to be 30 miles per hour i must press hard on the accelerator. there was a recall on the vehicle and i received a letter to have the car looked at by darcars dealership. i took the car to the dealership may 2011 and the representative stated that the steering column was replaced and everything is fine. now 4 months later the vehicle is in worse condition then it was prior to me taking it to the dealership. not sure what to do at this point. *tr

I was driving home one rainy day, about 45mph, dash lit up to shift. i looked and i was already in 5th. next second everything on dash went out. no speedometer, no shift light, no mileage or trip meter, nothing. only thing on dash that works is tach and digital display says power steering. already had an appointment for recall work for power steering assist motor, thought that maybe that was what was wrong so i kept appointment. when got back from dealer, they tell me they replaced power steering assist motor and they had noticed the dash display and had done scan and it showed the power steering motor is went out! bought this car for my daughter, to drive back in forth to school, scared for her to drive it the 90 miles a day she drives to college. thought this was just an isolated case but after checking online, i see that this is a major defect in these cars. something needs done before someone gets hurt or killed. *tr

When driving or at idle 2006 cobalt will stall when the heater or air conditioning is turned on. loss of power steering is lost as well as all other power. when the heater or air conditioner is turned off car will start again. there are no engine codes displayed. *tr

Tl*the contact owns 2006 chevrolet cobalt. the contact stated that when the brake pedal was engaged the vehicle stalled. the contact took the vehicle to the dealer several times, but was told that there was no code and the vehicle was functioning normally. after leaving the dealer the vehicle started to move forward and accelerate while the contact was sitting at a traffic light with the brake pedal engaged. the vehicle started to pull to the right when this occurred and abruptly made contact with a curb. the vehicle was towed to a different dealer for diagnostic testing to determine what caused the failure. the failure and current mileage was 44,800.

First time we had problem was christmas eve 2010 car stumbled. check engine light appeared t\c light appeared. car dinged power steering came up on info center all as we were on a country road on our way to our families christmas . we stopped shut car off my husband got out and checked all fluids and fuses all were ok then we. started car again and everything was back to normal for quite a awhile he said it might have just got confused there. then the problem popped up intermittently here and there .right around october 2011 not sure of exact date but me and 3 children where on our way across the state of indiana to see my husband that was working out of town and about 100miles into trip the cars power steering went out and made the car very hard to maneuver lights came on. as did in late 2010 so i pulled over and turned car off and did as my husband did and everything was good. but when i turned car back on it still had lights on so i called my husband and he told me to try unhook battery for like 10 minutes then hook back up and i did that and luckily it worked and we made it to where he was staying and we never had anymore problems till 9/15/12 when i was driving to see my mother and it happened again but this time in heavy traffic at a stop light and this time had all same symptoms but also a new one the transmission wouldn't shift from low gear. and it won't go off my husband researched on internet and found recalls for cobalts and numerous complaints of same steering problems but when i called gm and gave woman my vin she stated no recalls for my vehicle i don't understand if it is the same make of vehicle same problems they can pick and choose who has a problem and who doesn't. i am gonna try to solve this by taking to gm customer service,but if they not willing to work with me i will be more than happy to sign onto a class action lawsuit. *tr

Vehicle check engine light came on, followed by traction control light, along with severely reduced engine power. has occurred multiple times since, about every 3 months. have had diagnostics performed and it is a code p060e, which translates into 'indeterminate fault'. could result in major accident in it occurred while turning across lanes of traffic or at highway speeds as there is a sudden slowing. recurs about every 3-6months and after a few days, self corrects. *tr

My 2006 chevrolet cobalt ls 4 door sedan has the power steering go out quite frequently, two days ago my girlfriend was driving it and was stopped at a t-intersection. after making the stop she proceeded to make a left hand turn, at that time the vehicle accelerated uncontrollably and she ended up with all four tires jumping the curb. i do not know if the power steering went out at that particular moment, everything happened pretty quick. all i know is i have numerous concerns as to this cars road reliability. *tr

Starting the car and pulling out, the power steering not working, car hesitating when accelerating and then i pull over and shut the car off. i wait a few seconds and start the car again, and its running fine. this started a month or so after our purchase (used) on may 15,2009. the dealer did not have any weekend service. the date above is when we 1st reported for service. but turning the car off/on always fixed the problem. service dates-10/8/09,10/15/09,8/28/10,5/19/11.3/27/12. dealer couldn't find any dialogistic problems. i brought the car in & running, on 7/2/13, while running a mechanic drove it, said he knew the problem. dialogistic showed 2- cost $430. to repair. 2wks. later, happened again, dialogistic showed 6. estimate $6-$800 plus. too much to fix it. in the past 3 yrs., four times while driving at 60mph,on hwy., no power steering, gas hesitating, & down shifts to 25+/-while flooring the gas, car bucking, & speedometer bouncing b'twn.30-50. very freighting and once there was no place to stop. *tr

I have a 2006 chevy cobalt that has a power steering issue. the screen will display "power steering" which means that i have lost power steering. i have had steering column rattling randomly. my key gets stuck in the ignition, my cruise control does not work a long with my keyless entry i do not have any money to fix it . *tr

The cruise control on the car goes off by it self i was almost rearened by another car. *tr

Tl*the contact owns a 2006 chevrolet cobalt. while driving at unknown speeds, the vehicle automatically sped out of control. the vehicle veered off the road and struck a tree. the vehicle sustained a considerable amount of damage. the vehicle was towed to the dealer and they stated that there was a recall for the failure; however, they were never notified. the vehicle was repaired through her insurance agency at the cost of $6,971.29. the contact paid a $500 deductible. her vin was not included in the recall. the vehicle was diagnosed as having a faulty fuel injection system. the powertrain, recall number, and failure mileage were unknown. the current mileage was 6,800. updated 02-11-08 *bf updated 02/11/08 *tr

Events that lead to failure: 2006 chevrolet cobalt randomly shut off, instrument gauge needles randomly flicker/twitch, bad smell that in my opinion resembled a burnt food/sulfur combination. it started out lightly and randomly for a few weeks, but became heavier and constant over a week. a knocking noise came from the rear of the car, idle surged, and cruise control failed to disengage. failure & consequences: fire! component that failed was a canister/sending unit rear of the gas tank with the consequence of a fire and the total loss of my 2006 chevrolet cobalt. the evening prior i contacted my local dealer about the smell and i told them i have no warning lights on. the next day driving to the dealership the smell/odder intensified. my thoughts were, we'll at least they can't say they don't smell it or give me the "can't duplicate it" decision. i only made it halfway when my car had a major electrical/mechanical failure. i was assisted by cars traveling behind me as one pointed out my car was on fire and the car shut down, all without any warning lights! the fire severely burned the entire back half of the car. after being inspected by a very well seasoned fire inspector the fire was diagnosed to come from a canister/sending unit malfunction. again no warning lights gm! in my opinion the random shutting down of the car, the gauges twitching/flickering, the strange knocking noise and the smell/odder was all part of the same problem. corrected failures: in reference to the fire, that will be up to gm however, after reading the nhtsa alarming number of 2005-2007 chevrolet cobalt complaints and technical service bulletins one would be led to believe that there should be more than just a couple of recalls. *ak

2006 chevrolet cobalt sedan had 2 incidents of going out of control 9 days apart. first time was when car was put in reverse and slight tap of gas pedal resulted in car rapidly reversing until hit mud area on grass and light pole. second incident was when car was in forward and stopped to open trunk. car lunged forward with such force that it went through garage wall. air bags did not deploy either time. car towed to dealership. parts ordered to replace damage but not yet checked out mechanically to see what went wrong with forward & reverse incidents and why air bags did not deploy. *nm

Dt*: the contact stated upon initial acceleration onto the highway, the accelerator pedal stuck to the floorboard without warning. the contact quickly pulled to the side of the road and turned off the ignition which stopped the sudden acceleration. after restarting the engine, the problem persisted. the vehicle was inspected by a dealer who was unable to duplicate the problem. the manufacturer was not alerted. updated 12/15/2006 - *nm

Dt*: the contact stated while traveling various speeds, the vehicle stalled without warning. the dealership cannot duplicate the problem.

(1) car shuts itself off while i was driving down the freeway. during@ rush hour i veered away ( w-no power to car ),from traffic behind me. parked ,shut car off, took key out of ignition, then replaced and started it back up, and proceeded enroute. (2) after market cruise control failure to shut off and turn on. (3) result of above (2)after market cruise control takes its own mind and decides to fully accelerate until gearing down in hopes it 'awakes' the computer (automatic transmission),then cruise control will finally shut off. (consequence ) passenger had a heart attack. i called a taxi. "he's ok" (4) service air bags light have been on since 20,k miles i now have 47,xxx miles. (5)stock tires and rims wobble with irritating continous noises -can't ge rid of it. (6) stock seats driver and passenger sides both were installed incorrectlythey are really slantedlike this ( / \ ). (7) a clunking bucket sounding noise fills very slowly, (health problems) an odor is always present leaving me light headed ,nautious while driving, dizzy exiting car,and with breathing problems -like shortness of breath. i have severe back problems now, and can not sit in the car for more than 20 min, upon a break of fresh air and a walk for the spine. (8) brakes sound and feel (when applied),scratchy.@5,000 miles the chevy dealership had to turn and shave allready my disc brakes saying they were worn in. (9) my heater makes a lot of noises when using it. (10) acceleration hesitation. *jb

Dt*: the contact stated while driving 55 mph on the highway with the cruise control engaged, the brake pedal was depressed and the vehicle lurched forward without warning. multiple attempts were made to disengage the cruise control by constantly applying brake pressure, but the vehicle continued to accelerate. the vehicle suddenly careened through two lanes of traffic, struck a guardrail, and rolled over into an embankment where it finally came to a stop. the contact was wearing a seat belt, but minor injuries were sustained. due to the extensive body damage, the vehicle was deemed totaled. the police were alerted and a report was taken. the manufacturer was also alerted. updated 9/20/2006 - the air bags did not deploy. *nm

2006 chevy cobalt key comes out of ignition and it still runs. key gets locked in steering column and will not release. have to wait anywhere from 1 minute to 3 hours. radio shorted. automatic transmission slips and car will not accelerate (this happens while car is being driven). car will not start indicating a "lock key", have to cycle automatic shifter through gears before it will start. car will not start and just clicks. battery reads 12.21 volts. vehicle has a loose thumping noise in front axle area. all these indications generated a year after purchase and becoming more frequent. *tr

Dt*: the contact stated while driving 75 mph the cruise control would not deactivate. to deactivate the cruise control the brakes were applied at least 4 times each time harder than the time before in combination with turning the cruise control off. when it deactivated there was a loud grinding noise that was heard. within the next 20 minutes of driving the cruise control activated without being turned on, this occurred on 2 occasions. it was deactivated in the same manor as stated before. the vehicle was taken to dealer for inspection. the dealer test drove the vehicle however the problem could not be duplicated therefore no repairs were made.

2-incidents of sudden acceleration at freeway speeds: the first time the cruise was activated and on hitting resume the car took off on it's own. the coast function did not slow the car and turning off the cruise did not slow the car. i was in fairly light traffic and was able to steer and brake out of trouble until the accelerator returned to normal[the brakes only partially slowed the car because of the high speed involved]. about an hour later i was entering a freeway and at about 40-45 mph the accelerator went to the floor on its own again and i had only partial control of the car's speed. the cruise was off this time and again after a few minutes and miles the engine revved down to normal on its own. again traffic was fairly light so i was able to steer and brake through without a crash but in heavier traffic this would be a serious problem. the dealer test drove the car for about 18-miles but could not replicate the incident which is random and intermittent and their diagnostic tests showed these incidents never happened but believe me this is a real problem when these computers or electronic systems malfunction. general motors has opined that this is impossible which is a cover up since everything is controlled electronically. this is particularly dangerous since it happens at freeway speeds and the pedal goes to the max. *jb