Summary
The 2002 GMC Envoy has 21 recalls, the most serious being a cluster of drivetrain, suspension, and fire hazards that can cause sudden loss of control, vehicle rollaway, or an underhood fire.
The drivetrain concerns center on 4WD models: a transfer case range shift collar can crack and fracture completely, cutting off both forward and reverse gears and preventing the transmission from holding in park, which allows the vehicle to roll. A separate transfer case control module calibration issue can also prevent proper gear engagement and allow rollaway. On the engine side, vehicles with electronically controlled air suspension can produce an electrical spike that stalls the engine and may permanently damage the powertrain control module, leaving the vehicle unable to restart. The fuel filter fitting can disconnect and spray fuel, causing either a stall with loss of power steering or a fire risk near ignition sources. A front lower control arm bracket may fracture and separate from the frame, removing steering and handling control without warning. The driver's airbag inflator can crack at a weld during deployment, sending fragments into the cabin while also reducing the protection the airbag provides.
Structural and restraint issues include missing welds on the rear floor that can degrade third-row seat and seatbelt anchoring in a crash, and seatbelt retractor sensors in the front seats that may be inoperative and fail to hold occupants properly. The center console armrest latch can release in a crash, allowing the lid and its contents to strike occupants. There is also a wiper module that can leak water and cause wipers to stop,
Also recalled in Canada