2018 Chevrolet Suburban Safety Report

The 2018 Chevrolet Suburban presents a mixed safety picture, with a notable number of owner complaints despite a lack of comprehensive crash test ratings from NHTSA. With 78 total complaints, 3 crashes, 0 fires, and 4 injuries reported, the vehicle's real-world safety performance is primarily illuminated by owner experiences. A significant concern revolves around the powertrain, with 'POWER TRAIN' and 'ENGINE' components accounting for 11 and 8 complaints respectively, often detailing issues like sudden loss of power, transmission failure, and engine knocking. These issues, as described in complaints, can lead to dangerous situations on the road, such as unexpected deceleration or inability to accelerate. Recall history for the 2018 Suburban includes three significant campaigns. One recall addresses a 'SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING' issue that could cause unintended braking. Another critical recall pertains to 'SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM,' where reduced vacuum levels can increase braking effort and extend stopping distances, directly impacting crash avoidance. The third recall, 'SEAT BELTS:REAR/OTHER,' highlights a defect in second or third-row seatbelt retractor assemblies, which could compromise child seat security and increase injury risk in a crash. These recalls indicate known safety defects that GM has acknowledged and attempted to rectify. Despite the absence of specific NHTSA crash test ratings (Overall, Frontal, Side, Rollover are all N/A), the high volume of complaints related to critical systems like the powertrain and brakes, coupled with the nature of the recalls, suggests potential safety vulnerabilities. The recurring themes of transmission failure, engine power loss, and brake assist issues in owner complaints directly align with the types of defects addressed by recalls, indicating that these problems may not be fully resolved or are widespread. The 4 reported injuries further underscore the real-world impact of these issues.

Our recommendation: Given the significant number of powertrain and brake-related complaints, along with multiple safety recalls, prospective buyers should proceed with caution and ensure all recall repairs have been completed and a thorough pre-purchase inspection is conducted, focusing on the transmission, engine, and braking system.