There are 6 owner-reported speed control & cruise complaints for the 2007 Chevrolet Trailblazerin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Speedometer and rms needles do not function.
TRUCK FAILED TO ACCELERATOR PEDAL DEPRESSED, ACTIVATING STABITRAK CONTROL.. HAD TO ACCELERATE THE PEDAL SEVERAL TIMES BEFORE THE TRUCK ACCELERATE ANS REACTED..HAD TO TAKE OFF STABILTRAK TO DRIVE THE TRUCK. CHANGED CHANGED HUBS AND SEVERAL SENSORS. GETTING NO CODES..TOOK IT TO SEVERAL SERVICE STATIONS INCLUDING THE CHEVY DEALERS AND GOT NO ANSWERS BUT TO WANT TO CHARGE ME FOR REPAIRS NOT NEEDED..I LOVE MY TRUCK DON'T WANT TO GET RID OF IT.
THIS ISSUE OCCURRED ABOUT 6-7 TIMES THROUGHOUT MY 15 MILE TRIP. MY TRAVEL WAS ON A HIGHWAY AND SPEEDS WERE BETWEEN 55-68 M.P.H. AT THE ONSET OF EACH OCCURRENCE. I WOULD HIT A BUMP IN THE ROAD (NOT A MAJOR ONE ' JUST A BUMP) AND THEN THE 'STABILITRAK ACTIVE' LIGHT WOULD BE ILLUMINATED IN THE DASH CONTINUOUSLY BLINKING LIKE IT'S STUCK. THEN: -THE TRUCK WOULD BECOME SLUGGISH DROPPING SPEED AND KNOCKING OFF THE CRUISE CONTROL -YOU CAN'T ACCELERATE -THE STEERING LOCKS UP SORT OF CAUSING IT TO FEEL LIKE THE TRUCK IS OUT OF CONTROL, THIS OCCURRING AT HIGHWAY SPEEDS -THE AMOUNT OF POWER USED BY STABILITRAK WAS IMMENSE ' THE HEADLIGHTS BEGAN TO DIM THE LONGER IT WAS STUCK IN THIS STATE -IF YOU TRY BRAKING DURING THESE SPELLS IT HAS THE ANTI-LOCK ACTIVE SO YOU'RE JUST GRINDING AWAY LIKE YOU'RE IN A SKID BUT NOT STOPPING (AND THIS IS ON DRY PAVEMENT!) -- THIS OCCURRED ONE TIME WHILE I WAS ON AN EXIT RAMP AND AND I WAS UNABLE TO SLOW THANKFULLY I HAD TAKEN THE RAMP A LITTLE SLOWER TO BEGIN WITH OR I COULD HAVE BEEN IN MAJOR TROUBLE IN THE CURVE THEN SUDDENLY AS QUICK AS IT ALL STARTED IT RELEASES ' THE LIGHT SHUTS OFF AND ALL RETURNS TO NORMAL.
TL* THE CONTACT OWNS A 2007 CHEVROLET TRAILBLAZER. THE CONTACT STATED THAT THE DRIVER WAS TRAVELING AT AN UNKNOWN SPEED WHEN THE VEHICLE ABNORMALLY ACCELERATED AND CRASHED INTO A CONCRETE WALL. THERE WERE FOUR OCCUPANTS IN THE VEHICLE, ALL OF WHICH WERE KILLED. A POLICE REPORT WAS FILED. THE BLACK BOX WAS INVESTIGATED AND THE INVESTIGATING OFFICER DETERMINED THAT VEHICLE ACCELERATED BUT THE DRIVER DID NOT APPLY THE BRAKES DURING THE FAILURE. THE CONTACT STATED THAT THERE WERE BLACK TIRE MARKS AT THE SCENE OF THE CRASH, INDICATING THAT THE BRAKES WERE DEPRESSED. THE CONTACT DISCOVERED NUMEROUS COMPLAINTS ONLINE REGARDING THE SAME ACCELERATION FAILURE FOR THE YEAR, MAKE AND MODEL VEHICLE. THE CONTACT STATED THAT HE DID NOT BELIEVE THAT THE DRIVER WOULD HAVE DRIVEN AND CRASHED INTO A CONCRETE WALL WITHOUT THERE BEING A VEHICLE MALFUNCTION. THE FAILURE MILEAGE WAS 65,000.
2WD 2007 TRAILBLAZER SUPER SPORT GOES WIDE OPEN THROTTLE AFTER START UP AND SELECTING REVERSE. THIS IS WITH FOOT ON BRAKE TO SHIFT AND NO THROTTLE APPLIED OR TOUCHED SINCE START UP. VEHICLE WAS IN A PARKING LOT. ENGINE WENT FULL THROTTLE AND SMOKED REAR WHEELS JUST AFTER SELECTING REVERSE. THIS DRAGGED THE FRONT WHEELS BACKWARDS A SHORT DISTANCE WITH THE FRONT BRAKES LOCKED UP. SHIFTING TO NEUTRAL HAD THE ENGINE GO OVER THE 6500 RPM REDLINE IGNORING ALL PCM PROGRAMMED REV LIMITERS. (REV LIMITERS: 4000 RPM IN NEUTRAL AND 6500 RPM IN GEAR.) DEALER FOUND DTC U1017 LOSS OF SERIAL COMMUNICATIONS FOR CLASS 2 DEVICES. I KNOW OF 4 OTHER 2007 TRAILBLAZER SUPER SPORT THAT HAVE RANDOMLY GONE WIDE OPEN THROTTLE. THIS IS AN ADDITIONAL PROBLEM SINCE COMPLAINT NUMBER : 10269455 THROTTLE HANG UP - NOT ALWAYS RETURNING TO IDLE POWER. *TR
WHEN I HAVE THE TRUCK MOVING IT DOESN'T MATTER WHAT SPEED THE THROTTLE BODY STAYS OPEN MAKING IT VERY HARD TO COME TO A STOP. FEELS LIKE THE ENGINE IS FIGHTING ME TO STOP. *TR
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.
Data synced from NHTSA on Apr 25, 2026