2018 Chevrolet Traverse

THIS IS A RECURRING ISSUE: TODAY WHILE I WAS DRIVING MY VEHICLE ON US 98 IN GULF BREEZE, FL I MADE A LEFT HAND U-TURN IN A 45 MPH ZONE AND THE VEHICLE SUFFERED SEVERE FUEL STARVATION. I STARTED THE U-TURN OUT OF A COMPLETE STOP. EVEN WITH THE ACCELERATOR PEDAL FLOORED IT TOOK THE VEHICLE OVER THREE SECONDS TO RECOVER. THIS HAPPENED WITH OVER 3/4 OF A TANK OF FUEL. LUCKILY, I GAVE MYSELF PLENTY OF SPACE WITH APPROACHING TRAFFIC AND I HAD A LEFT HAND TURN LANE TO USE OR ELSE I WOULD HAVE BEEN IN AN ACCIDENT. THIS ISSUE HAS ONLY OCCURRED WHEN COMMITTING U-TURNS. THE VEHICLE GAVE NO INDICATIONS TO ANY PROBLEMS. I HAVE BROUGHT THIS ISSUE UP WITH THE DEALERSHIP WHERE I BOUGHT THIS VEHICLE AND EITHER THEY CAN'T DUPLICATE IT OR GM IS NOT GOING TO FIX THIS PROBLEM UNTIL THERE IS A LETHAL ACCIDENT.

DRIVING LATE AT NIGHT WITH FAMILY DOWN A STATE HIGHWAY/CITY STREET WITH SOME STOPLIGHTS AND ROTARY, VEHICLE SUDDENLY SEEMS TO BE INTERMITTENTLY LOSING POWER OR TRANSMISSION SLIPPING WHEN DRIVING. WHEN GIVING GAS ENTERING ROTARY, INTERMITTENT SLIPPING/POWER LOSS (LIKE A SKIPPING POWER/SLIPPING TRANSMISSION) WORSENED - FELT GREATER LOSS OF POWER AND FOR SLIGHTLY LONGER PERIODS. NOTED ENGINE LIGHT CAME ON. WORSENING INTERMITTENT POWER FAILURE/SLIPPING/HESITATION/JERKING CONTINUED WHEN GIVING GAS TO ENGINE FOR ~1/4 MILE UNTIL PULLED INTO SHOPPING MALL PARKING LOT. FELT LUCKY TO BE ABLE TO REACH LOT, CALLED FOR FLATBED TOW TO DEALER. DEALER HAD VEHICLE FOR 1 WEEK, AND WHEN ASSESSMENT COMPLETE, REPORTED DTC P0011, P0014, P0021 AND P0024 CAM CODES. THEY VISUALLY INSPECTED WITH NO CONCERNS, TEST ACTUATOR SYSTEM OPERATING. SEARCH FOR BULLETINS REVEALED DOCUMENT 5251270 WITH NO REPAIR YET FOR ANOMALY, WHICH DESCRIBES "SOME CUSTOMERS MAY COMMENT THAT THE SES [SERVICE ENGINE SOON] LAMP IS ILLUMINATED. THIS LAMP MAY HAVE COME ON BY ITSELF OR IN SOME CASES, THE CUSTOMER MAY EXPERIENCE DRIVABILITY ISSUES SUCH AS A STALL, LURCH, STUMBLE, HESITATION OR POWER LOSS AFTER AN AUTO STOP/RESTART." NOTES TECHNICIAN MAY FIND THE ABOVE LISTED CODES. CAUSE IS LISTED AS "A SOFTWARE ANOMALY THAT ALLOWS THE 'VERIFY SYNC' STATUS TO NOT RESTART AND REACH FULL 'SYNC' WHEN THE ENGINE RESTARTS. THE ECM THEN REPORTS ACTUAL CAM POSITIONS AS '0' WHILE IT CONTINUES TO COMMAND THE ACTUATORS TO MOVE RESULTING IN ENGINE ROUGHNESS AND/OR DRIVABILITY CONCERNS (AS STATED ABOVE) WITH THE POSSIBILITY OF SETTING MULTIPLE CAM PHASER PERFORMANCE DTCS." INSTRUCTIONS ON THE BULLETIN ARE TO CHECK AND CLEAR CODES AND RETURN VEHICLE TO CUSTOMER. BULLETIN CREATED ON 5/7/2018 WITH 5 UPDATES SINCE. BROUGHT VEHICLE BACK TO DEALER DUE TO CONCERNS OF LACK OF FIX AND SAFETY WHEN RECURS, DEALER UNABLE TO REPLICATE.

ON A NORMAL SUNNY AFTERNOON AFTER ABOUT DRIVING FOR 20 OR SO MILES, WE WERE APPROACHING A RED LIGHT IN A LINE OF TRAFFIC AT A BUSY INTERSECTION, THE VEHICLE APPEARED TO START SLIGHTLY JERKING AS I WAS COMING TO A STOP. ONCE STOPPED THE STOP/START FUNCTION OPERATED. UPON RELEASING THE BRAKE TO ACCELERATE THRU THE INTERSECTION THE VEHICLE STARTED JERKING AND LURCHING UNCONTROLLABLY THEN SHUT DOWN COMPLETELY, THE INSTRUMENT PANEL WENT DARK. I COULD NOT GET THE CAR OUT OF THE LINE OF HEAVY TRAFFIC, I HAD TO PUT IT IN PARK RIGHT IN THE MIDDLE OF THE ROAD AND TRY THE START BUTTON. THANKFULLY THE VEHICLE STARTED, THE CHECK ENGINE LIGHT CAME ON AND STAYED ON BUT THE VEHICLE APPEARED TO BE RUNNING NORMAL AGAIN AND WE WERE ABLE TO PROCEED. THIS WAS VERY UPSETTING AND DANGEROUS AS IT OCCURRED IN HEAVY TRAFFIC AT AN INTERSECTION. I TOOK IT BACK TO THE DEALERSHIP THE NEXT DAY (I BOUGHT THIS VEHICLE USED 2 WEEKS PRIOR, THIS WAS ONLY MY 2ND TIME DRIVING IT AND I HAD ONLY PUT 70 MILES ON IT IN THE 2 WEEKS I HAD IT). THE CURRENT MILEAGE IS APPROX. 25,600. THE HARD CODE THE DEALER RETRIEVED NOTED A CAMSHAFT SENSOR ISSUE. THE SENSOR WAS NOTREPLACED, I WAS TOLD THAT GM IS AWARE OF THIS PROBLEM AND WOULD BE ISSUING A RECALL BUT THEY ARE NOT SURE WHEN. THEY SAID IT WAS A COMPUTER PROGRAM ISSUE. I AM VERY CONCERNED FOR OUR SAFETY WHILE OPERATING THIS VEHICLE AS THEY SAID THE ISSUE MAY OR MAY NOT HAPPEN AGAIN. ONSTAR SENT ME AN EMAIL NOTIFYING ME THAT MY 2018 CHEV TRAVERSE HAD AND ENGINE/TRANSMISSION ISSUE AND TO TAKE IT TO THE DEALER ASAP . THANK YOU ONSTAR, I AM VERY AWARE OF THE ISSUE AND IT WAS ALREADY AT THE DEALER BUT I APPRECIATE THAT YOU ALSO RECOGNIZE THAT THERE WAS A PROBLEM. HOPING GM DOES SOMETHING VERY SOON, THIS IS A $50,000 VEHICLE WITH ONLY 25K MILES ON IT AND IT IS NOT SAFE TO OPERATE UNDER THESE CONDITIONS.

FUEL PUMP SHUTS OFF WHEN FILLING AS IF TANK WAS FULL. SOMETIMES IT HAPPENS MULTIPLE TIMES DURING A FILL UP, SOMETIMES IT DOES NOT OCCUR. DEALER STATED THERE WAS GAS IN THE VENT LINE AND CHARCOAL CANISTER, AND THAT THE TANK HAD TO HAVE BEEN OVERFILLED. DEALER ASK STATED THEY BLEW OUT THE LINES AND CANISTER AS A COURTESY, AND IF IT HAPPENS AGAIN, WE WILL BE EXPECTED TO PAY TO REPLACE THE VENT LINE AND CANISTER. WE HAVE NEVER OVER FILLED THE FUEL TANK. AFTER THE PUMP CLICKS OFF WE STOP. IF THERE IS FUEL IN THE VENT LINE AND CANISTER, THERE MUST BE A MISSING/DEFECTIVE PART IN OUR FUEL SYSTEM, EITHER ALLOWING FUEL IN, OR DELAYING FUEL CUTOFF UNTIL IT IS OVERFILLED. I FILLED UP ON 4/28/19, THE FIRST TIME AFTER THE SERVICE, AND THE PUMP STOPPED ERRONEOUSLY 6 TIMES BEFORE FILLING UP THE FINAL 4.5 GALLONS WITHOUT STOPPING UNTIL FULL.

VEHICLE TURNED OFF DURING OPERATION. VEHICLE WAS TRAVELING AT 45 MPH ON A LOCAL HIGHWAY AND TURNED OFF. COASTED THE VEHICLE INTO AN EMPTY PARKING LOT WHERE PARKING GEAR WAS APPLIED AND VEHICLE WAS RESTARTED. CHECK ENGINE LIGHT WAS NOW PRESENT. VEHICLE WAS DROPPED OFF AT DEALERSHIP WHERE IT WAS PURCHASED. WAS INFORMED IT WAS A SOFTWARE ANOMALY AND IS CURRENTLY BEING INVESTIGATED. NO REPAIR, SOFTWARE WAS RESET AND VEHICLE WAS RELEASED

TL* THE CONTACT OWNS A 2018 CHEVROLET TRAVERSE. WHILE DRIVING VARIOUS SPEEDS, A FUEL ODOR WAS DETECTED IN THE CABIN OF THE VEHICLE. THERE WERE NO WARNING INDICATORS ILLUMINATED. THE VEHICLE WAS TAKEN TO THE DEALER (AUTONATION CHEVROLET ARROWHEAD, 9055 W BELL RD, PEORIA, AZ 85382, (623) 428-8851), BUT THE FAILURE COULD NOT BE DUPLICATED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED AND A CASE WAS OPENED. THE FAILURE MILEAGE AND VIN WERE NOT AVAILABLE.