NHTSA lists 1 safety recall and 34 owner complaints for the 2005 Pontiac Aztek. Most complaints involve electrical system (9) and engine (4). The EPA rates it 18–19 mpg combined.
CERTAIN DELPHI FUEL PRESSURE REGULATORS, P/NOS. FP10020-11B1, FP10026-11B1, AND FP10027-11B1, SOLD AFTER JANUARY 9, 2007, AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES LISTED ABOVE. THE UNIVERSAL PRESSURE REGULATORS (UPR) WERE PRODUCED WITHOUT AN O'RING AND RETAINER.
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
“WHEN THE RADIO IS TURNED ON AN EXTREMELY LOUD SCREECHING SOUND IS HEARD. THE NOISE CONTINUES EVEN AFTER THE KEY IS TURNED OFF. THERE IS AN ELECTRICAL CRACKLING SOUND IN THE DASH AND WHEN THE BRAKE IS DEPRESSED THERE IS A LOUD CRACKLING SOUND. NO GAUGES WORK CORRECTLY. THEY EITHER PEG OUT OR OPERATE OUT OF THE EXPECTED RANGE OF OPERATION. THE AIRBAG LIGHT FLASHES OFF AND ON. THE AWD LIGHT IS ON ALL THE TIME. THE GAS GAUGE ALWAYS BELOW "E". *TR”
“THE VEHICLE WILL CUT COMPLETELY OFF WHILE COMING TO A STOP. WHILE IN MOTION AND APPLYING THE BRAKES TO COME TO ANY KIND OF STOP, IT TURNS COMPLETELY OFF. IT HAPPENS ON A DAILY BASIS SINCE I PURCHASED IT IN 2015. WHETHER COMING OFF OF THE HIGHWAY, OR JUST COMING TO A STOP SIGN ON A CITY STREET, THE VEHICLE CUTS COMPLETELY OFF.”
“THERE WAS A STRONG FUEL ODOR COMING IN THE INTERIOR AND THE EXTERIOR OF THE VEHICLE. THE VEHICLE WAS TAKEN TO A LOCAL MECHANIC BUT THEY COULD NOT DETECT IF THERE WAS A FUEL LEAK OR WHY THE FUEL ODOR WAS SO STRONG. THIS ONLY SEEM TO HAPPEN IN THE COLD WEATHER MONTHS THE SMELLL IS A LOT STRONGER WHEN THE CAR IS NOT MOVING BUT STILL RUNNING IN TRAFFIC OR WARMING UP OR AT A STOP LIGHT. *TR”
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| Aztek FWD Auto 4-spd, 6 cyl, 3.4 L · Front-Wheel Drive | 17 | 24 | 19 | $3,300 | 468 |
| Aztek AWD Auto 4-spd, 6 cyl, 3.4 L · 4-Wheel or All-Wheel Drive | 16 | 22 | 18 | $3,450 | 494 |
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
1 safety recall as of Nov 10, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.
Owners filed 34 complaints with NHTSA. The most-cited components are electrical system (9), engine (4), fuel system, gasoline (4). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
The EPA rates the 2005 Pontiac Aztek at 18–19 mpg combined, depending on engine and drivetrain (2 versions rated).