Two problems related to transmission gear slipping have been reported for the 2018 Chevrolet Traverse. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 Chevrolet Traverse based on all problems reported for the 2018 Traverse.
Transmission slipping through first and fourth gears, car slow respond, jerking, shudder. Afraid to drive car- because safety issue vehicle-will say put car in drive. When the vehicle is in drive. Vehicle will not go in auto stopped mode. Vehicle roars -to the right when driving right front bad. The dealer told me there is an internal recall on the transmission-they are aware of the issues. They are not making it public-they are just repairing as customers bring them in with complaints.
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.