The electronic speed control suddenly stopped working and no longer functions. the automatic stop feature causes the vehicle to lurch forward suddenly when you press the gas peddle following a stop. the dynamic braking suddenly engages while driving at highway speeds on the interstate and there are no other vehicles or obstructions in the area.
Tl* the contact owns a 2019 chevrolet equinox. while driving approximately 50 mph or higher with the adaptive cruise control engaged, the vehicle suddenly made a dinging noise and decelerated. the contact had to wait approximately two minutes before the vehicle returned to normal. the vehicle was not diagnosed or repaired. the dealer and manufacturer were not made aware of the failure. the approximate failure mileage was 11,345.
While on vacation traveling on 81s in va & doing 70 mph on the 3-lane hwy., without a warning a power reduction message appeared on the dash; then the check engine light came on. our vehicle went from 70 mph (posted speed) to 40 mph. in a matter of seconds. we had a tractor trailer pushing us & a car passing us on the left. had it not been for the fast reactions of my husband and help from the man above, we would now be 6' under. after shaking & gaining our wits, we consulted the vehicle handbook to check on a possible reason for the power reduction & how to proceed. this accident would have been logged as driver error, when actually it was vehicle malfunction. we left the vehicle in va at a chev dealership on monday & they advise it would be 4 days until they could work on the unit. we agreed to pick it up friday on our return trip to pa. the dealership called thurs. morning to advise it was ready. we had to request paperwork showing that it was worked on & that they found no issues with it, but that the check engine light went out. upon arriving home, we took the unit to our local dealership and while the unit did not register a code in the computer a mechanic did find---5242 vehicle has a u0100 lost communication with the ecu--checked communication with the pcm, tcm & bcm---no poor connections found at this time. the dealership drove the vehicle for two weeks, but could not duplicate the issue. it is with much trepidation that we must now drive this vehicle for 3 yrs. until our lease is up and will not be able to allow passengers in it for fear of this happening again and taking their lives too. we have read five reasons for the 2019 equinox to experience a power reduction, but none of them fit what we experienced. we would like to suggest further testing & investigation into this matter. our unit had 4,785 miles on it when this incident happened.
Traveling south on 81 in the far right lane, a triple lane highway. with heavy morning work traffic going 70 mph with an 18-wheeler pushing our vehicle & a car passing us on the left, our 2019 equinox dropped to 40 mph and a power reduction message appeared on the dash. the check engine light came on at the same time the speed dropped down 30 mph. it was by the grace of god that the 18-wheeler missed our vehicle and we were able to pull to the side of the road. my husband put the engine in park and revved the engine checking to see if the vehicle would take fuel. the power reduction light cleared off the screen, but the check engine light stayed on. we slowly traveled to a gas/comfort area (in woodstock, va) and read our vehicle handbook for possible reasons of power reduction---there were quite a few, but none that we could relate to. we stayed over night at a motel and monday (6/3/19) took our vehicle to the local chevrolet dealership. after being told they couldn't work on our vehicle until thursday, we had to continue our trip in a rental unit. we were contacted by the dealership on thursday (6/6/19) that our vehicle was ready for pickup. the unit threw no codes, but the check engine light did go out after their diagnostic check. we arranged to pick up our vehicle friday morning and drove it home with much trepidation. the unit was taken to our local chevrolet dealership, where it was purchased and they have been driving it to make the same mechanical defect occur; but to no avail. to face death once and survive, does not make one comfortable to drive the same vehicle. had we died after being hit by the 18-wheeler, the fault would have gone to driver's error as one reads in many accidents in the news.
While traveling on interstate at adaptive cruise control set at 72 a chevrolet traverse passed on the left at avery high speed as it passed my drivers door our equinox immediatley applied the brakes and rapidly slowed to 55mph when the traverse had passed our equinox resumed 72 mph