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,
At a glance
What can fail
The electronically controlled air suspension can send a brief electrical spike that disrupts the powertrain control module, causing the engine to stall while driving.
What the fix does
Dealers will install a new wiring harness to prevent the electrical spike from reaching the powertrain control module.
Summarized — see the official notice for exact wording, dates, and contacts.
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At a glance
What can fail
The air suspension system can create a brief electrical spike while driving. This spike may disrupt the engine control module, causing the engine to stall or, if the module is damaged, prevent the vehicle from restarting.
What the fix does
The suspension system has been corrected to prevent electrical spikes from affecting the engine control module.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
One or two sensors in the driver and front passenger seat belt retractors may not work. The retractors lock during a crash, but may fail to lock during hard braking, reducing occupant restraint.
What the fix does
Dealers will inspect the seat belt sensors for proper function and replace them if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
A sensor in the driver's and front passenger seat belt retractors may not work. The belt will lock during a crash, but may not lock during hard braking or sudden deceleration.
What the fix does
Dealers will inspect both front seat belt retractors and replace them if needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Brake hoses lack the required manufacturer identification label per safety standards, though they function normally.
What the fix does
No repair needed; the missing label does not affect brake hose performance or safety.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Water can seep into the windshield wiper module, causing wipers to fail to work, stop working while driving, fail to turn off, turn on unexpectedly, or cause the washer pump to run continuously.
What the fix does
Dealer will seal the wiper module vent-hole with a Gore-Tex patch and inspect the wiper motor, circuit board, and connector for water damage or corrosion, replacing parts as needed.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The instrument panel cluster may fail to power up properly during startup, leaving most displays and warning lights inactive, though the service engine light, turn signals, and panel backlighting still work.
What the fix does
Dealers will reprogram the instrument panel cluster to restore proper power-up function during vehicle startup.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The ignition key can be removed when the shift lever is not in park, and the transmission can be shifted out of park when the ignition is off. These overrides lack required protective covers and locking mechanisms.
What the fix does
Dealers will disable both overrides to restore proper theft protection compliance.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Welds that join the rear floor structure are missing on some SUVs, creating a potential structural weakness.
What the fix does
Dealers will inspect for missing welds. If found, GM will replace your vehicle with an equivalent one or refund your purchase price.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel filter fitting can disconnect while the engine starts, causing the engine not to start and fuel to leak onto the ground.
What the fix does
Dealers will replace the fuel filter quick connect retainers at no charge.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The driver's side airbag inflator may crack at a weld during deployment. Metal fragments could injure occupants, and the airbag cushion may not inflate completely.
What the fix does
Dealers will inspect the driver's side airbag module and replace it if necessary.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The fuel filter fitting may disconnect, potentially causing an engine stall or fire.
What the fix does
Dealers will replace the fuel filter quick connect retainers to secure the fitting.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transfer case control module calibration or improperly machined range shift collar may prevent high-speed gear from fully engaging. This can cause the vehicle to roll when parked, potentially resulting in a crash.
What the fix does
Dealers will perform a clean neutral test. If ratcheting noise is detected, the transfer case will be replaced.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transfer case control module calibration may prevent high-speed gears from fully engaging. If this happens, the vehicle can roll when parked, risking a crash.
What the fix does
Dealers will reprogram the transfer case control module to improve gear engagement.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The transfer case control module calibration may prevent the high-speed gear from engaging properly on 4-wheel drive sport utility vehicles.
What the fix does
Dealers will reprogram the transfer case control module calibration to ensure proper gear engagement.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The range shift collar in the transfer case may have cracks that can fully break, causing loss of forward and reverse gears and inability to hold the vehicle in park.
What the fix does
Dealers will replace the transfer case and update the control module software.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The range shift collar in the transmission transfer case may contain cracks, potentially affecting power transfer to the wheels.
What the fix does
Dealers will replace the transfer case and update the transmission control module calibration at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The console cover latch may release when subjected to a vertical force less than required by safety standards. In a crash, the cover could open and potentially strike or allow items to injure a passenger.
What the fix does
Dealers will replace the console latch mechanism and install a separate striker plate to secure the cover properly.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The latch holding the console cover or armrest lid can open unexpectedly during a crash or impact, failing to stay secure as required by safety standards.
What the fix does
The dealer will replace the console latch mechanism and install a striker plate to secure the lid properly.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The brackets that attach the front lower control arms to the frame may crack and break, causing the control arm to separate from the frame and potentially making the vehicle difficult to control.
What the fix does
Dealers will replace both the left and right front lower control arm brackets.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The front lower control arm brackets may crack under certain conditions, potentially causing the front lower control arm to separate from the frame.
What the fix does
Dealers will replace both the left and right front lower control arm brackets at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
