2018 Chevrolet Traverse Reliability Score & Common Problems

Owners of the 2018 Chevrolet Traverse frequently report issues with the exhaust system, particularly involving broken or poorly welded brackets on the exhaust flex pipe, which can lead to exhaust leaks and cracked catalytic converters. Complaints often mention check engine lights and error codes like P0420, with some issues appearing around 33,000 to 63,000 miles. Additionally, there are reports of problems with the purge valve affecting emissions systems, causing rough idling and stalling with check engine lights illuminated, typically around 60,000 to 93,000 miles. A few complaints also describe sudden loss of power or stalling while driving, which could pose safety risks, but no crashes or fires are reported. These patterns suggest potential reliability concerns for used car buyers considering this model.

Owners of the 2018 Chevrolet Traverse frequently report issues with the electric parking brake, including malfunctions that prevent the brake from setting or releasing properly, which can lead to the vehicle rolling unexpectedly. Several complaints describe the electronic parking brake engaging while driving, causing smoke from overheating brakes. Reports also highlight "shift to park" issues where the vehicle does not recognize when it is in park, making it difficult to turn off the vehicle. Symptoms often occur at various mileages, with some incidents noted as early as 35,000 miles. Safety implications include a crash resulting from the vehicle rolling while parked on a slope, and multiple instances of unintended brake engagement while driving, posing a risk of loss of control. These issues are significant for used car buyers considering this model year.

Owners report frequent issues with the exhaust system of the 2018 Chevrolet Traverse, including cracked exhaust manifolds, fractured exhaust pipes, and catalytic converter failures. Common symptoms described include loud engine noises, exhaust fumes entering the cabin, and illuminated check engine lights. These problems often occur at mileages ranging from approximately 30,000 to over 182,000 miles. Several complaints highlight safety concerns due to exhaust fumes affecting occupants' health and the vehicle losing motive power. Buyers should be aware of these recurring issues and the potential need for exhaust system repairs in this model year.

Owners report frequent issues with the steering system of the 2018 Chevrolet Traverse, often involving sudden power steering failure, which results in difficulty steering the vehicle. Symptoms commonly described include error messages such as "Power Steering Assist Warning" or "Assisted Steering is Limited," and the steering wheel becoming hard to turn while driving. These issues appear at various mileages, with some vehicles experiencing problems as early as 552 miles. Additionally, some complaints mention associated problems with the Stabilitrak system, leading to vehicle stalls and loss of control, particularly at low speeds or when accelerating from a stop. Safety implications are evident, with several owners expressing concern about the potential for accidents due to the sudden loss of steering control.

Owners report recurring issues with the seat belts in the 2018 Chevrolet Traverse, particularly with buckles failing to latch or remain latched. Complaints frequently mention that the seat belts in both the passenger and driver seats, as well as the second-row middle seat, either do not extend, fail to secure, or release unexpectedly. These problems are reported at varying mileages, with some occurring well before 30,000 miles. The inability to securely fasten seat belts poses a significant safety risk, as it may prevent proper occupant restraint in the event of a collision. Buyers considering this model should be aware of these potential seat belt malfunctions, especially as some owners report difficulty obtaining warranty coverage for repairs.

Owners of the 2018 Chevrolet Traverse frequently report issues with the rear suspension, particularly involving the rear toe links and control arms. Complaints often describe failures such as broken sway bar links and rust-related detachment of suspension components, with some incidents occurring around 46,000 to 51,000 miles. Symptoms include a shimmy or grinding feeling when driving and visible rust on suspension parts, raising concerns about potential loss of vehicle control. These patterns suggest that used car buyers should be cautious of suspension component integrity and inspect for rust and wear, especially in vehicles with similar mileage.

Owners of the 2018 Chevrolet Traverse frequently report issues with airbag non-deployment during crashes. Complaints often describe severe accidents where no airbags deployed, even with significant vehicle damage, such as engine displacement and total vehicle loss. Two incidents also note that OnStar did not activate. These reports involve vehicles with varying mileage, including one with as low as 3,000 miles. Additionally, one complaint describes a vehicle catching fire after a minor accident. Buyers should be aware of the potential safety implications given the involvement of crashes, injuries, and a fire in these reports.