2020 Chevrolet Trax Reliability Report

Most reports here describe brakes locking up without warning at highway speed while the StabiliTrak and traction control lights come on. Repairs pile up: fuse block, master cylinder, coil pack, ABS module and brake booster. Cars sit at dealers for weeks between attempts. Other complaints cover a clunk when pulling away from a stop, Hill Assist rollback, a front lower control arm the dealer blamed on defective factory assembly, and service power steering warnings with shaking.

Failure to deploy in frontal and side impacts is the main complaint. Injuries include a concussion, a broken nose and spinal disc damage. In a crash at about 60 mph, the driver seatbelt also failed to lock. The front passenger occupant detection system can fail to sense a seated passenger. One report places this at 518 miles, and the dealer found the sensor within specification. A warning light that stays on is another complaint. These five reports include two crashes and four injuries.

Front brakes lock up while driving, including at interstate speed, with the StabiliTrak light on and an electronic brake control module code stored. Shops replace several parts without curing it, and dealers sometimes say nothing is wrong. Other reports describe the opposite problem. In one, the pedal needs several presses before the brakes grip. In another, a burst brake line between the master cylinder and ABS module sent the pedal to the floor, and the brake booster is suspected. The lockup pattern matches reports filed under suspension and power train.

The wheel can turn on its own and seize, and this has led to a crash into a parked car. Another crash followed a suspension part breaking. Power assist can cut out along with a service power steering warning, a speedometer reading zero and a total loss of power. Front lower control arms and tie rod ends wearing out early are reported at 23,300 miles. Two of the four complaints involve crashes.

Limp mode can cap speed at 9 mph. It comes with a code for a voltage mismatch between the accelerator pedal position sensor and the throttle position sensor. Clearing the code helps only briefly before the fault returns. A separate report says the hand parking brake does not hold the car when fully engaged, which is a risk on inclines. Another describes low RPM and slow acceleration with a B3935 code. With only three reports, no broad pattern is clear.

The wipers stop working properly because the wiper motor fails. One motor replacement is reported at 48,568 miles. Another report describes replacement motors lasting only about 2 months each, followed by a wiper transmission replacement. The third complaint is about an aftermarket wiper blade that peeled and broke apart in heavy rain. That is a problem with the blade, not with the car.

The driver door can scrape a person's leg as it swings open. One injury report says this drew blood and was not the first time it happened. The second complaint is broad. It describes jerking while driving, the car not starting after refueling unless the accelerator is pressed, and a sudden total shutdown while driving. It also mentions repeat dealer visits with 5 to 7 day repair times and no loaner car.