Window fogging is the dominant complaint. In temperatures below 50°F, interiors fog heavily despite defroster on full blast; at 20°F or lower, frost coats windshield and all four passenger windows, forcing owners to roll down windows to see—a safety hazard they cite repeatedly. The fog persists even in warm weather for some owners, accompanied by a constant musty odor, pointing to water trapped in the HVAC system.
Water intrusion into the spare tire well and rear floor is the likely culprit. Owners document standing water and soaked carpeting; one family reports mold made them ill. A dealership blamed a pinecone in a taillight drain, but that didn't fix the fogging. A TSB for water leakage diagnosis exists, though defroster issues went unresolved at dealers.
Heating and cooling system components fail repeatedly: heater cores, actuators, thermostats, and coolant lines. Multiple owners report gushing water sounds from the dashboard. Repairs—sometimes costing over $1,000—fail to stick; one owner replaced thermostat, coolant, heater core, sensor, and B-pass hose, yet the gushing recurred. Windshield wipers jam at 50,000 miles (motor won't shut down) and fail entirely at 57,000 (mid-rainstorm). Defroster stops working below 35°F on some units; dealers claim it's normal spec. One sunroof flew off during freeway driving.
Failure modes owners describe
Window fogging and frost accumulation
Interior windows fog heavily in cold weather (below 50°F), advancing to frost at 20°F or lower. Defroster on highest setting cannot clear fog. Issue affects windshield, all four passenger windows, and sidelights. Owners report needing to roll down windows to maintain visibility—a safety hazard.
When: Occurs in temperatures below 50°F; frost forms when temperatures drop to 20°F or lower
Symptoms owners cite: Heavy interior fogging on windshield and all four passenger windows; Frost layer covering all windows in freezing temps; Defroster unable to clear fog despite highest fan setting; Musty smell in cabin, especially when AC or defroster in use; Persistent issue recurring daily in cold weather
Repairs/costs cited: One dealership attributed water intrusion to pine needle in rear taillight housing drain. Owners suspect water has entered AC/defrost system causing mold. TSB mentioned for water leakage diagnosis but defroster issue not resolved at dealership.
Recalls/TSBs owners mention: TSB exists for water leakage diagnosis; dealership unable to duplicate problem despite daily occurrence
Heater core and cooling system failures
Multiple failures in heating and cooling circuits presenting as no heat, loss of defroster function, or gushing water noise from dashboard. Recurrent issues even after repair attempts. Heater core, thermostat, coolant lines, and heating coils implicated.
When: Reported at mileages ranging from 84,000 to 212,998 miles
Symptoms owners cite: No heat; fan blows cold air only; Complete defroster failure preventing windshield visibility; Abnormal gushing water noise from dashboard during acceleration; Check engine and service traction control lights illuminate briefly; Fumes emerging from dashboard area
Codes mentioned: Check engine light, Service traction control indicator
Repairs/costs cited: Thermostat replaced; coolant replaced; heater core replaced; coolant sensor replaced; B-pass hose replaced; radiator unclogged; heating coil replacement recommended—failures recurred after multiple repair attempts.
Recalls/TSBs owners mention: Manufacturer referred owner to NHTSA and dealer; offered no assistance in other cases
Windshield wiper motor jam
Wiper motor runs but wipers do not move; motor will not shut down. Owner had to disconnect fuse to stop motor. Issue is a visibility and safety hazard, especially during rain.
When: At approximately 50,000 miles
Symptoms owners cite: Abnormal buzzing noise from vehicle; Wipers immobilized despite motor running; Motor runs continuously and cannot be shut down; Failure during rain when wipers needed most
Repairs/costs cited: Owner disconnected fuse; vehicle not taken to dealer
Recalls/TSBs owners mention: Manufacturer contacted but offered no assistance
Heater actuator failure
Heater actuator fails, resulting in complete loss of heat output through vents. Impacts winter driving safety and visibility (cabin fogging).
When: At 84,000 miles
Symptoms owners cite: No heat coming through vents; Loss of heating function
Repairs/costs cited: Heater actuator replacement needed; vehicle not repaired
Recalls/TSBs owners mention: Manufacturer offered no assistance
Defroster inoperative in cold conditions
Defroster fails to function below 30–35°F, leaving windshield undefrostable and severely limiting visibility. Dealer and manufacturer claim this is normal vehicle specification.
When: At 30,800 miles; occurs when outside temperature is 30–35°F
Symptoms owners cite: Defroster does not work below 30–35°F; Unable to clear windshield fog or frost; Feature only works at 40°F or warmer
Repairs/costs cited: None; dealer stated this is vehicle specification
Recalls/TSBs owners mention: Dealer and manufacturer stated it was vehicle specifications; could not assist
Water intrusion into cabin and rear wheel well
Water leaks into spare tire wheel well (approximately 2 inches standing water documented) and rear passenger floor, soaking carpet. Water enters HVAC system, causing mold and mildew growth that family reports made them ill. Windows fog constantly even in warm weather due to moisture-saturated cabin air.
When: Timing not specified; mold issue ongoing and worsening
Symptoms owners cite: Standing water in spare tire wheel well; Water on rear passenger floor and carpet; Mold and mildew growth in cabin; Persistent musty smell; Windows fogging constantly, including during warm weather; Health issues reported by family members
Repairs/costs cited: Dealership attributed one case to pine needle in rear taillight drain; no permanent fix documented
Recalls/TSBs owners mention: TSB exists for diagnosing water leakage; no recall or systematic fix mentioned
Windshield damage and visibility defects
Windshield develops hundreds of small tack marks causing severe nighttime visibility problems. Heat crack appears on windshield and continues spreading even in summer conditions, compromising structural integrity and visibility.
When: At 57,000 miles for wiper failure; windshield damage timing not specified
Symptoms owners cite: Hundreds of small tack marks across windshield; Difficulty seeing at night due to marks; Heat crack on windshield; Crack continues spreading in warm weather
Repairs/costs cited: Wiper repair described as expensive; no cost given for windshield replacement
Recalls/TSBs owners mention: GM aware of wiper problem per owner report but no recall issued
Sunroof detachment
Sunroof panel completely separated and flew off vehicle while driving on freeway. Catastrophic failure creating immediate hazard to occupants and other vehicles.
When: April 8, 2013; mileage not stated
Symptoms owners cite: Sunroof suddenly detached during freeway driving; Panel flew off vehicle
Repairs/costs cited: No repair details provided
Synthesized from 15 NHTSA owner complaints — unverified consumer
allegations, summarized for patterns. The verbatim filings appear below.