There are 12 stored owner reports matching the powertrain & transmission leading-label group for the 2020 Chevrolet Trax in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 12 of 12 matching reports.
Open the full vehicle complaint log (all categories)I was driving my car and was at a stop sign and the vehicle started acting odd and it felt like it was lunging me forward. I was concerned that it was going to do it without my control and after that it almost sluggish and stalling until I could get it out of the intersection. Took it to a repair shop and the whole turbo unit needs to be replaced with 38,000 miles on it.
The coolant reservoir is missing hoses which are supposed to be connected. The head gasket is completely blown out, which is under warranty. Excessive overheating—three signs light up on the dashboard: red thermometer indicating an overheating engine; check engine light; and check engine light with arrow pointing downward indicating engine speed to be reduced. Trax stopped in the middle of the traffic light on and 7/26/25 and had it towed.
The contact owns a 2020 Chevrolet Trax. The contact stated that while the vehicle was at a stop sign, the Hill Assist function failed to operate as intended. The contact removed her foot off the brake pedal and the vehicle rolled backwards. The vehicle was taken back to the dealer where the vehicle was purchased; however, the failure could not be duplicated. The vehicle was not repaired. The failure reoccurred. The vehicle was taken back to the dealer again. The contact was informed that the vehicle was taken to the Chevrolet dealer for a diagnostic test. The contact was informed that the failure was not duplicated. In addition, the contact was informed that it was normal for the vehicle to roll backward when the brake pedal was released. The vehicle was not repaired. The contact stated that the failure had started seven days after the vehicle was purchased. The manufacturer was not made aware of the failure. The failure mileage was approximately 36,900.
The initial problem was a defective shifter. It took over a month for a Chevrolet service department to get the vehicle in and fix the problem. By the time I brought the vehicle in to fix the shifter, the transmission was hesitating to switch gears, jerking at highway speeds and overall failing to shift and accelerate properly. This high speed jerk causes the seatbelt to lock up and hit my chest-causing pain while driving. This defect has caused pain, soreness and stiffness in my chest and neck. Dealership 1 (coggin Buick gmc of orange park- Jacksonville,fl) was notified upon drop off and did not fix the transmission issue. They claimed the only issue they found was the shifter. Dealership 2(Gordon Chevrolet- orange park fl) has made 3 attempts to locate and repair the problem and were “unable to duplicate the concern ” I have additional documentation from dealer 3(carmax Jacksonville west-Jacksonville, fl) where they have duplicated the concern 3 times on a 1 hour test drive. Chevrolet/General Motors are not taking accountability despite the vehicle still being under warranty.
My car brakes locked down while I was driving home from work, at 70 mph, posted speed limit. I got it to the dealership, it started out that it was a broken wire, now they tell me I need a new fuse box and it's not covered. My car was purchased in may of 2020 and has 47k miles on it. The repairs have gone from 412.00 dollars, not including the tow bill to 719.00 dollars, not including the tow bill. A fuse box shorting out at two years old, and locking down the brakes is absurd. I work at a trucking company and have 40+ years experience with no tickets or accidents, I don't know how my car didn't flip forward it stopped so hard, it's hard to think about what would have happened to someone with less driving experience than I have trying to control a car in the same instance. Please check on this, if you need to know, my car is now at Don Hall Chevrolet in Ashland KY, ph. 606-618-9616, my car is in their service center.
This is the 3rd time this has happened in our vehicle, my second complaint here. I was driving on the interstate at posted limit of 60 when brakes began locking up on me. I got it off to the side of the road, I thought my car was going to flip over the brakes locked down so hard. Service stabilitrak light came on, abs light and traction control light came on. I called the dealership who told me onstar provided the stabilitrak code for it. They told me it would be 160 to have it hooked up to diagnostics, that if it isn't covered by warranty it is a customer assumed cost. My husband replaced the ignition coil and spark plugs thinking that it was the problem, well over 200.00 for parts. The car is now doing the same thing, but I noticed it happened an incline, then realized it happened the 1st and 2nd time on a decline. I am now wondering if the transmission isn't going out at 47,363 odometer miles. The dealership is no help, they have the actual codes but won't provide them or tell me what's wrong. All I know is that for a 25,000 k car, it's dangerous. I am lucky I was able to maintain control of the vehicle on an interstate highway.
The vehicle looses power and jerks like the transmission is failing. It happens almost always when when going up a hill and also if the air conditioner is turned on the car can barely get out of its own way. I've almost been hit or rear ended several times trying to merge onto the highway because the car is jerking and barely wanting to move. I have now come to the point that I have to turn the AC off in a brand new car for for my own safety and to be able to get up to a normal speed when merging onto the highway. It has been doing this since I first got it but I didn't think there was really much I could do about it. I plan to call the dealer as well to have them look at it. There have never been any warning lights or any diagnostic issues detected but believe me a problem is there! Ive recently learned that the issues Im having with the jerking and barely any power when trying to accelerate has been a big issue in the Trax since 2016. And I can confirm its still happening! There were also a few instances with a warning light on the dash and it will tell me it can't detect something in the key and I couldn't start the car until I was able to get it to read properly after a few tries of removing the key. If my vehicle is needed for inspection, it is available at anytime!
TL* THE CONTACT OWNS A 2020 CHEVROLET TRAX. THE CONTACT STATED THAT THE VEHICLE HESITATED TO START. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS, THE VEHICLE FAILED TO ACCELERATE AS NEEDED. THERE WAS NO WARNING LIGHT ILLUMINATED. COVERT CHEVROLET BUICK GMC (702 TX-71, BASTROP, TX 78602) WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT THAT THERE WAS NOTHING WRONG WITH THE VEHICLE. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC AND DIAGNOSED THAT 3 OF THE FOUR CYLINDER WAS MISFIRING. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT TO TRADE THE VEHICLE IN ON A NEWER VEHICLE. THE FAILURE MILEAGE WAS 20,560.
WHEN I'M STOPPED AND I TAKE MY FOOT OFF THE BRAKE THE TRANSMISSION SLIPS AND SLAMS INTO GEAR
THERE IS A NOISE IN THE RIGHT PASSENGER DOOR, THE TRANSMISSION JERKS OFTEN WITHOUT GIVING IT GAS, AND THE RADIO SCREEN BLACKED OUT WHEN GOING OVER A RAILROAD TRACK
TL* THE CONTACT OWNS A 2020 CHEVROLET TRAX. THE CONTACT STATED WHILE DRIVING AT APPROXIMATELY 30 MPH, PASSENGER REACHED FOR AN ITEM IN THE CENTER CONSOLE AND INADVERTENTLY TOUCHED THE GEAR SHIFTIER. THE VEHICLE SHIFTED FROM DRIVE TO NEUTRAL WITH NO WARNING LIGHTS ILLUMINATING. THE CONTACT WAS ABLE TO BRAKE AND SHIFT BACK TO DRIVE. THE CONTACT STATED LATER TESTED THE SHIFTER WHILE PARKED IN DRIVEWAY, WAS ABLE TO SHIFT FROM DRIVE TO NEUTRAL WITH A LIGHT TOUCH. THE VEHICLE WAS TAKEN TO BICAL CHEVROLET OF VALLEY STREAM (709 W MERRICK RD, VALLEY STREAM, NY 11580) WHERE NO FAILURE WAS DIAGNOSED AND WAS INFORMED ALL VEHICLES WERE DESIGNED THAT WAY. THE MANUFACTURER WAS NOTIFIED, A CASE WAS OPENED AND AWAITING A RETURN CALL. THE FAILURE MILEAGE WAS APPROXIMATELY 900.
TL* THE CONTACT OWNS A 2020 CHEVROLET TRAX. THE CONTACT STATED THAT WHILE DRIVING AT AN UNDISCLOSED SPEED, THE TRANSMISSION SLIPPED AND INADVERTENTLY CHANGED GEARS WHILE THE VEHICLE SHUDDERED. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO (BENNETT CHEVROLET DEALER, (6721 E BLACK HORSE PIKE, EGG HARBOR TOWNSHIP, NJ 08234, (609) 641-0444) TO BE DIAGNOSED. THE TECHNICIAN WAS UNABLE TO DEDUCE THE CAUSE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. MANUFACTURER WAS MADE AWARE OF THE FAILURE AND INFORMED THE CONTACT TO TAKE THE VEHICLE BACK TO THE DEALER. THE FAILURE MILEAGE WAS APPROXIMATELY 13.
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
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Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.