2017 Toyota Corolla
Problems, recalls and owner-reported issues
Air bags is the leading concern among 189 owner complaints filed for this model year. This is the 17th highest complaint count among 26 Corolla model years with reports.
Of the 2017 reports, 47 involved a crash and 1 involved a fire. 44 people were injured.
What owners report most often
Recalls and investigations
Air bags, air bag/restraint control moduleJan 17, 2020
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2011-2019 Corolla, 2011-2013 Matrix, 2012-2018 Avalon, and 2013-2018 Avalon Hybrid vehicles. During certain crashes, the air bag electronic control unit (ECU) may malfunction, possibly disabling the deployment of the air bags and/or seat belt pretensioners.
In the event of a crash, air bags and/or seat belt pretensioners that do not deploy as intended may increase the risk of injury.
Toyota will notify owners, and dealers will inspect the ECU and install a noise filter between the air bag control module and its wire harness, as necessary, free of charge. Owners were notified of the safety risk beginning March 2, 2020. A second letter notifying owners of the remedy repair will be mailed between March 16, 2020 and June 27, 2020. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's numbers for this recall are 20TB03, 20TA03 and 20TA05.
Campaign 20V024000 on NHTSA.gov
Equipment, other, labelsJun 28, 2019
Southeast Toyota Distributors, LLC (SET) is recalling certain 2017-2019 Toyota Camry, Corolla, Rav4, Sienna, and Yaris iA vehicles equipped with factory-installed floor mats. The load carrying capacity modification label may be incorrect. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 110, "Tire Selection and Rims."
An incorrect label may lead to unintentionally overloading the vehicle, increasing the risk of a crash.
SET will notify owners and provide a corrected label for placement over the inaccurate label, free of charge. The recall began August 23, 2019. Owners may contact Toyota customer service at 1-888-270-9371. SET's number for this recall is SET19A.
Campaign 19V503000 on NHTSA.gov
Tires, temporary/emergency spare tireMay 2, 2017
Gulf States Toyota, Inc. (Gulf States) is recalling certain 2017 4Runner , 86, Avalon, Camry, Camry Hybrid, Corolla, Corolla iM, Highlander, Highlander Hybrid, Prius, Prius C, RAV4, RAV4 Hybrid, Sienna and Yaris vehicles. The spare tire air pressure was not adjusted to the proper pressure as stated on the Tire Pressure Label.
A spare tire that is not inflated to the proper value may not perform as intended, increasing the risk of a crash.
Gulf States will notify owners, and dealers will inspect the spare tires, adjusting their pressure as necessary, free of charge. The recall began June 15, 2017. Owners may contact Gulf States customer service at 1-800-444-1074. Toyota's number for this recall is 17R2.
Campaign 17V295000 on NHTSA.gov
Representative owner complaints: vehicle speed control
30 reports, newest first. Show all
Vehicle speed control, May 14, 2023
Recently purchased a used 2017 Toyota Corolla. During the test drive I did not attempt to use the cruise control as it was only driven on city or small highways. Travel with the car at those locations has been good. Yesterday while on a freeway, I used the cruise control. It started out okay, but when I got to a downhill or uphill location, the car engine got very loud. The rpm’s revved to an extremely high level and the car accelerated and kept accelerating beyond the cruise set speed. I became very scared and didn’t know what was happening. Luckily I had quick thinking to hit the brakes immediately. I actually pulled over and stopped due to the issue and my nerves. The engine looked okay so once calmed, I began traveling again. I wanted to use the cruise on the freeway, so attempted a second time later. The same exact thing happened in the uphill / downhill scenario. I realized there is something wrong and it is not a good issue at all! This morning I began researching things related to the car. Prior to my purchase, I had checked for any outstanding recalls (which there were none) and problems people may have had with this car. There were no general concerning things I saw. This morning I began searches specific to cruise control issues and found discussions and even videos pertaining to cruise problems. People mention an array of scenarios and possible reasons such as the brake pedal sensor not working. Then I came across this site where other people described the same exact problem and safety concern of mine. I agree with all of them that it is definitely scary and thank goodness the brake works otherwise it would be a MAJOR safety concern!! I am now concerned and wondering why after many people have problems with this, there is not a fix or something being done?
Vehicle speed control, May 27, 2022, crash
The contact owns a 2017 Toyota Corolla. The contact stated that while driving at an undisclosed speed, the engine revved and the vehicle experienced unintended acceleration. The vehicle crashed into a concrete barrier while turning into a parking space. The contact was not able to depress the brake pedal in time to stop the vehicle. No air bags were deployed. No injury was sustained and no medical attention was received. A police report was filed. The vehicle was towed to a body shop; however, the vehicle was not diagnosed nor repaired. The vehicle was not deemed totaled by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was approximately 55,000.
Vehicle speed control, Aug 31, 2021
Vehicle went out of control in regards of speed when traveling downhill with cruise control on. Vehicle began heavily decelerating and accelerating along with high engine rpm. This is extremely dangerous and I am unable to use cruise control because of it.
Power train, Vehicle speed control, Forward collision avoidance, Jul 10, 2021
I HAD TO DRIVE AROUND 600 MILES TO AND FROM FAMILY FUNERAL. AS OTHERS HAVE REPORTED THE CRUISE CONTROL ON A DOWN HILL SLOPE GOES OUT OF CONTROL. AS I REACHED THE TOP OF A HILL AND STARTED DOWN THE CRUISE CONTROL WOULD ACCELERATE TO 4000 RPM ( IT IS REALLY LOUD) THE SPEED WOULD START INCREASING AND GO 15-20 MPH OVER WHAT THE CRUISE CONTROL SPEED WAS SET AT. I HAD TO TURN OFF THE CRUISE CONTROL TO REGAIN CONTROL OVER THE SPEED. I WAS AFRAID THAT SOMETHING MIGHT HAPPEN IF I DID NOT. WHERE IT SEEMED MY CAR SHOULD DOWN SHIFT IT WAS NOT. SOMETHING IS WRONG WITH THE PROGRAMMING OF THE CRUISE CONTROL. THIS SHOULD NOT HAPPEN ON A DECLINE. ALSO, AT ONE POINT WHEN I WAS IN THE LEFT LANE AND A CAR PASSED ME ON THE RIGHT, MY CAR SLOWED DOWN REALLY QUICKLY. IF SOMEONE HAD BEEN BEHIND ME IT COULD HAVE CAUSED A SERIOUS ACCIDENT. THIS IS MY FOURTH TOYOTA AND I HAVE NEVER HAD THESE PROBLEMS BEFORE.
Vehicle speed control, Sep 27, 2020
WHEN GOING DOWN HILL, THE CRUISE CONTROL RACES THE ENGINE INTO HIGH RPM (4000+ RPM) RATHER THAN SLOWING THE ENGINE AND CONTROLLING THE CAR SPEED. IT HAS DONE THIS SINCE IT WAS NEW.
Vehicle speed control, Aug 19, 2019
WHEN CRUISE CONTROL ENGAGED, IF IT HITS A LEVEL OR DOWN HILL IT APPEARS TO DOWN SHIFT, BUT CONTINUE TO SPEED UP. IT SHOULD JUST REDUCE THE FUEL TO SLOW DOWN. THIS APPEARS TO BE A PROGRAM PROBLEM. THIS HAPPENS AT ALL SPEEDS. IT WAS BOUGHT USED FROM A TOYOTA DEALER. I HAVE NOT ASKED THE SERVICE DEPARTMENT YET.
Steering, Vehicle speed control, Fuel/propulsion system, May 21, 2019
WHILE DRIVING DOWN A DOWNGRADE WITH THE CRUISE CONTROL ENGAGED AND SET TO 65MPH, THE CVT TRANSMISSION DOWNSHIFTS, THE RPMS INCREASED AND THE VEHICLE ACCELERATED TO WELL OVER THE SPEED LIMIT. IT FELT LIKE I WAS LOSING CONTROL. I HAD TO ACTIVATE THE BRAKES TO DISENGAGE THE CRUISE CONTROL IN ORDER TO REDUCE MY SPEED TO BELOW THE POSTED SPEED LIMIT. I TRIED IT AGAIN ON ANOTHER DOWNGRADE AND THE SAME SITUATION WAS DUPLICATED. THE CAR WILL ALSO ENGAGE RPMS WHEN YOU ARE DOWNGRADING OR UPGRADING IN CRUISE CONTROL I DID NOT TAKE THE CAR INTO A DEALER SINCE THE ISSUE HAS BEEN REPORTED TO DEALERSHIPS WITH A SOLUTION TO THIS PROBLEM.
Vehicle speed control, Feb 17, 2019
WHEN GOING DOWNHILL ON CRUISE CONTROL MY COROLLA'S RPM'S GO UP TO 5000 AND INSTEAD OF KEEPING STABLE SPEEDS IT INCREASES THE SPEEDS. I FEEL LIKE I CAN'T CONTROL MY VEHICLE WHEN THIS HAPPENS. THIS IS A HUGE SAFETY ISSUE. I'M NOT SURE IF SOMETHING NEEDS TO BE RE-PROGRAMMED BUT I'VE SEEN SO MANY COMPLAINTS ON THIS ISSUE. I WOULDN'T BE SURPRISED IF A WRECK HAS HAPPENED BECAUSE OF THIS. TOYOTA NEEDS TO BE FORCED TO FIX THIS ISSUE BEFORE SOMEONE SERIOUSLY GETS HURT OR DIES.
Vehicle speed control, Dec 29, 2018
DISAPPOINTED WITH TOYOTA ON THIS, LAST ONE I WILL PURCHASE IF THEY ARE UNABLE TO PROVIDE A FIX! WHILE IN MOTION ON EVERY OCCASION THE CRUISE CONTROL IS ENGAGED AND THE VEHICLE IS ON A DECLINE THE CRUISE CONTROL DOES NOT MAINTAIN THE SET SPEED. THIS IS THE FIRST TIME OF 4 OTHER COROLLA'S I HAVE OWNED THAT RESPONDED LIKE THIS. DEPENDING ON THE SEVERITY OF THE DECLINE THE SPEED WILL INCREASE FROM 5 TO 15 MPH AND THE ENGINE REVS TO 4,000 RPMS IN AN ATTEMPT TO MAINTAIN SPEED. ADAM'S TOYOTA DEALERSHIP HAS STATED THAT THIS IS A NORMAL OCCURRENCE FOR ALL 2017 COROLLA'S CVT'S AND I MAINTAIN IT'S NOT AND CRUISE IS USELESS THEREFORE I SHOULD BE REIMBURSED. THE CRUISE CONTROL IN ALL OTHER VEHICLES (PRIOR COROLLA'S AND OTHER MAKES) I HAVE OWNED HAS MAINTAINED A CONSISTENT SPEED NO MATTER THE ROAD BEING TRAVELED. SINCE I HAVE OWNED THIS VEHICLE THIS ISSUE HAS OCCURRED EVERY TIME I HAVE ENGAGED THE CRUISE CONTROL. OTHERS ONLINE HAVE COMPLAINTS ON THIS ISSUE AS WELL. TOYOTA PLEASE PROVIDE FIX
Vehicle speed control, Dec 22, 2018
THE CVT TRANSMISSION MAKE A SOUND UNKNOW THE DEALER SAY ME THAT IS ALL NORMAL IN THE CAR FOR ME IS NOT NORMAL OTHER CARS CONTAIN CVT TRANSMISSION AND THIS SOUND NOT MAKE IN OTHERS CVT TRANSMISSION IS MORE MAKING SOUND IN CLIMB AND WHEN ON AIR CONDITIONER
Vehicle speed control, Service brakes, Visibility/wiper, Dec 20, 2018
WHILE COMING OUT OF A REVERED POSITION, I WAS DRIVING FORWARD AND MY BRAKES VIBRATED. THIS CAUSED MY CAR TO STALL WHILE IN THE DRIVING POSITION.
Vehicle speed control, Electronic stability control (ESC), Service brakes, Oct 12, 2018
RED BRAKE LIGHT, ABS, VSC, POWER STEERING, AND MIL LIGHTS CAME ON. DTC'S U0129.
Power train, Vehicle speed control, Engine, Sep 15, 2018
FROM A COMPLETE STOP WHEN ATTEMPTING TO ACCELERATE YOU CAN PUSH THE ACCELERATOR ALL THE WAY TO THE FLOOR AND IT WILL ACCELERATE EXTREMELY SLOW THEN WILL TAKE OFF CREATING ONE OF TWO SAFETY CONCERNS. EITHER YOU MUST FLOOR THE ACCELERATOR TO EVEN ATTEMPT TO KEEP UP WITH TRAFFIC OR FEATHER THE ACCELERATOR AND GET RUN OVER FROM BEHIND.
Vehicle speed control, Aug 30, 2018
AS OTHERS HAVE REPORTED THE CRUISE CONTROL ON A DOWN HILL SLOPE GOES OUT OF CONTROL. AS I REACH THE TOP OF THE HILL AND START DOWN THE CRUISE CONTROL WILL ACCELERATE TO 4000 RPM AND THE SPEED WILL INCREASE 10-15 MPH OVER WHAT THE CRUISE CONTROL IS SET AT. I MUST TURN OFF THE CRUISE CONTROL TO REGAIN CONTROL OVER THE SPEED. SOMETHING IS WRONG WITH THE PROGRAMMING OF THE CRUISE CONTROL. ON DOWN HILL THE CRUISE CONTROL SHOULD BE REDUCING FUEL TO MAINTAIN SPEED NOT INCREASE IT. I AM A POLICE OFFICER AND THIS CRUISE CONTROL IS A HAZARD.
Power train, Vehicle speed control, Jun 29, 2018
WHILE DRIVING DOWN A DOWNGRADE WITH THE CRUISE CONTROL ENGAGED AND SET TO 65MPH, THE CVT TRANSMISSION SEEMED TO DOWNSHIFT, THE RPM'S INCREASED AND THE VEHICLE ACCELERATED TO WELL OVER THE SPEED LIMIT. IT FELT LIKE I WAS LOSING CONTROL. I HAD TO ACTIVATE THE BRAKES TO DISENGAGE THE CRUISE CONTROL IN ORDER TO REDUCE MY SPEED TO BELOW THE POSTED SPEED LIMIT. I TRIED IT AGAIN ON ANOTHER DOWNGRADE AND THE SAME SITUATION WAS DUPLICATED. I DID NOT TAKE THE CAR INTO A DEALER SINCE THE ISSUE HAS BEEN REPORTED TO DEALERSHIPS WITH A SOLUTION TO THIS PROBLEM.
Vehicle speed control, Other or unspecified, Engine, May 26, 2018
BOUGHT THE CAR LAST APRIL, IT HAS GIVEN ME NO PROBLEMS, UNTIL NOW. THE CAR START TO LOOSE ACCELERATION WHEN DRIVING ALMOST GOT INTO TWO CAR ACCIDENT ON THE ROAD, CALLED TOYOTA BUT THEY WANT TO CHARGE ME TO INSPECT THE CAR, THE CAR SEEMS TO BE STUCK ON GEARS LIKE IF IT WAS ON NEATRUAL.
Vehicle speed control, Fuel/propulsion system, Apr 17, 2018
WAS DRIVING IN MIDDLE LANE OF INTERSTATE 10 WHEN VEHICLE LOST POWER. CAR WOULD NOT ACCELERATE. CAR COASTED FOR APPROX. 5 MINUTES. HAD TO PUT ON EMERGENCY FLASHER, PUT CAR IN PARK TO RESTART ENGINE. CARS COMING UP BEHIND ME DOING 75/80/85 MILES PER HOUR AND HAD TO SWERVE IMMEDIATELY TO KEEP FROM HITTING MY VEHICLE. I HAD A FRIEND IN PASSENGER SEAT AND WE WERE BOTH SCARED FOR OUR LIVES. TO THIS DAY, I AM AFRAID TO DRIVE ON INTERSTATE OR ANY OTHER BUSY HIGHWAY BECAUSE TOYOTA SAID THEY COULD NOT FIND ANY PROBLEM.
Vehicle speed control, Mar 21, 2018
ADAPTIVE CRUISE CONTROL CAUSES THE CAR TO DOWN-SHIFT UNNECESSARILY ON A STRAIGHT DOWNHILL GRADE AND SOMETIMES INCREASES THE SPEED BY AS MUCH AS 8-10 MPH. I FEEL OUT OF CONTROL, WHICH IS DANGEROUS. A TOYOTA TECHNICIAN HAS CONFIRMED THE SAME BEHAVIOR ON ANOTHER 2017 COROLLA. ON ONE OCCASION, ON A FREEWAY DOWNHILL WHERE THE SPEED COULD HAVE EASILY BEEN CONTROLLED BY LETTING OFF THE GAS, THE CAR DOWNSHIFTED TO D3, REVS WENT TO ABOUT 4000, AND THE SPEED INCREASED TO 70MPH - WHEN IT WAS SET TO ABOUT 62. ON ANOTHER OCCASION, ON A RELATIVELY FLAT, STRAIGHT FREEWAY ROAD, IT AGAIN DOWNSHIFTED FOR NO APPARENT REASON, AND THE SPEED AGAIN INCREASED OVER THE SET SPEED (OF COURSE THE REVS WERE HIGHER AGAIN). IN BOTH OF THE ABOVE CASES, THERE WAS NO CAR OR OTHER OBSTACLE IN FRONT OF ME THAT SHOULD CAUSE THE CAR TO SLOW DOWN. I'VE SEEN THE ADAPTIVE CRUISE RESPOND TO A CAR TOO CLOSE SO KNOW HOW THAT FEELS.
Air bags, Vehicle speed control, Mar 10, 2018, crash
MY CAR WAS STRUCK BY A CAR SPINNING OUT OF CONTROL MAINLY THE DRIVERS SIDE DOOR CENTER POST AND REAR DOOR. I THINK THE CAR IS TOTALED. THE PASSENGER REAR WHEEL IS BENT FROM THE IMPACT. NONE OF THE AIR BAGS DEPLOYED. THE POLICE OFFICERS THAT WORKED THE ACCIDENT WAS ASTONISHED. HE SAID THEY SHOULD HAVE DEPLOYED. MY CAR WAS MOVING ABOUT 15MPH THE CAR THAT HIT MINE WAS SPINNING VERY FAST. THE ROADS WERE SLICK AND IT WAS RAINING. THE IMPACT WAS ABOUT 40 TO 60MPH AT LEAST.
Suspension, Vehicle speed control, Service brakes, Feb 19, 2018
THE CRUISE CONTROL IS JUST AWFUL AND HAS BEEN SINCE I BOUGHT THE CAR BRAND NEW IN DECEMBER 2016. JUST AS SEVERAL OTHERS HAVE DESCRIBED, IT CANNOT CONTROL THE SPEED WHEN GOING DOWN HILL. IT RAISES THE RPM'S TRYING TO SLOW THE CAR DOWN, BUT IT ISN'T VERY EFFECTIVE. I'VE NEVER HAD ANOTHER CAR OR ANOTHER TOYOTA HAVE SUCH POOR SPEED CONTROL. SO MUCH, THAT I DON'T EVEN BOTHER TRYING TO USE IT ANYMORE. A COP ISN'T GOING TO LISTEN TO "MY CRUISE CONTROL WASN'T WORKING RIGHT" IF I GET PULLED OVER. THE BRAKES ALREADY FEEL LIKE THEY ARE WEARING OUT AT 26K MILES. MY 13 CAMRY HAD 30K AND THE BRAKES STILL FELT BRAND NEW. SAME WITH THE 15 SENTRA I HAD. THE SUSPENSION FEELS ROUGHER AND IS STARTING TO MAKE NOISES ALREADY. THIS CAR SHOULDN'T FEEL LIKE IT HAS 60K MILES ON IT ALREADY.
Vehicle speed control, Feb 13, 2018
THE VEHICLE DOES THIS 100% OF THE TIME. WHEN ON THE ADAPTIVE CRUISE CONTROL ON THE INTERSTATE THERE ARE OCCASIONS WHERE THE CRUISE WILL GO 14 MPH ABOVE THE SET LIMIT AND THE ENGINE IS AT 4000 RPM OR HIGHER. I TYPICALLY DRIVE AT 65 MPH ON THE INTERSTATE; THIS IS CAUSING ME TO GO TO OVER 75 MPH WHILE THE SYSTEM IS TRYING TO RECOVER BACK TO 65MPH. I ALSO OWN A 2017 TOYOTA RAV4 AND DRIVE THE SAME ROADS; THE CRUISE IS 'ROCK STEADY'. IT HOLDS AT A CONSTANT 65MPH.
Vehicle speed control, Other or unspecified, Fuel/propulsion system, Nov 30, 2017
CAR SPEEDS UP AT STOP OR LOW SPEEDS ON HIGHWAY AND STREETS STOP AND GO TRAFFIC
Vehicle speed control, Oct 30, 2017
ON INTERSTATE IN WESTERN MARYLAND AND WEST VIRGINIA, ROAD CURVES TO LEFT, GOING UPHILL (STEEP) AT 70 MPH AND 4000+ RPM IN DRIVE, 3 LANES, TRUCK IN "SLOW" RIGHT LANE (40MPH), COROLLA IN MIDDLE LANE, LEFT LANE EMPTY. SAFET SENSE "SEES" TRUCK AND HITS BRAKES. NO ONE BEHIND, THANKS. POSSIBLE REAR END COLLUSION. SERIOUS SAFETY FAULT. DIFFICULT FOR COROLLA TO REGAIN SPEED. DOES NOT HAPPEN ON RIGHT CURVE AS THOSE VEHICLES IN LEFT LANE ARE MOVING FASTER THAN COROLLA.
Vehicle speed control, Oct 23, 2017
THE VEHICLE WAS TRAVELING IN THE LEFT LANE OF A DIVIDED 4 LANE HIGHWAY AT A SPEED OF 55 MPH WITH THE SPEED CONTROL AND RADAR ENGAGED. THE ROAD CURVED SLIGHTLY TO THE RIGHT. THE VEHICLE APPROACHED A CAR STOPPED IN THE LEFT TURN LANE IN THE MEDIAN - NOT IT THE LANE OF TRAVEL. DUE TO THE CURVATURE OF THE ROAD, THE RADAR DETECTED THE STOPPED VEHICLE AND APPARENTLY BELIEVED IT TO BE IN THE PATH OF TRAVEL. THE RADAR/SPEED CONTROL SOUNDED ITS "COLLISION ALARM" AND RAPIDLY DECELERATED APPROXIMATELY 10 - 15 MPH BEFORE I COULD DISENGAGE IT AND REGAIN CONTROL. HAD THERE BEEN A VEHICLE FOLLOWING ME THIS COULD HAVE RESULTED IN A COLLISION AS A FOLLOWING DRIVER WOULD HAVE SEEN THAT THE LANE OF TRAVEL WAS CLEAR AND WOULD HAVE NO REASON TO EXPECT MY VEHICLE TO SUDDENLY DECELERATE. I HAVE EXPERIENCED SIMILAR ISSUES WHEN A VEHICLE IN FRONT OF ME TURNS RIGHT OR LEFT AT AN INTERSECTION. I CAN SEE THAT THE VEHICLE IS TURNING AND I KNOW HOW LONG IT WILL TAKE TO CLEAR THE TRAVEL LANE. THE RADAR SPEED CONTROL SYSTEM SEEMS TO DETECT THE SLOWING VEHICLE BUT TAKES A LONG TIME TO PROCESS WHAT IS HAPPENING. THE SPEED CONTROL WILL ABRUPTLY DECELERATE THE VEHICLE AFTER THE TURNING VEHICLE IS WELL OUT OF THE INTERSECTION. AGAIN, THE SUDDEN DECELERATION WITHOUT APPARENT TRAFFIC CONDITIONS TO WARRENT SUCH ACTION ARE A HAZARD TO THE VEHICLE AND ANY FOLLOWING VEHICLES. I TOOK THE VEHICLE TO THE SERVICE DEPARTMENT AT AT TOYOTA OF GOLDSBORO (NC) ON OCTOBER 23, 2017. THEIR OPINION WAS THAT THE SPEED CONTROL/RADAR WAS "OPERATING AS DESIGNED."
Vehicle speed control, Oct 6, 2017
SPEED CONTROL ENGAGED GOING DOWNHILL ON HIGHWAY AT 60 MPH - CAR ACCELERATES VERY QUICKLY TO OVER 70 MPH AND THE TAC GOES TO 4500. TO DISENGAGE I EITHER TURNOFF SPEED CONTROL OR BRAKE. THIS HAPPENED FOUR TIMES TODAY. I HAVE NEVER HAD A TOYOTA ACT LIKE THIS. USUALLY SPEED CONTROL MAINTAINS THE SPEED UPHILLL OR DOWNHILLL IN A VERY SMALL RANGE AND NEVER RACES THE ENGINE. THIS IS VERY DANGEROUS AND I WILL NOT USE SPEED CONTROL UNTIL I CAN GET THIS FIXED. TAKING TO TOYOTA MONDAY. I NOTICED THAT THERE ARE QUITE A FEW COMPLAINTS ON THE INTERNET ABOUT THIS EXACT PROBLEM.