2001 Pontiac Sunfire Problems

What owners report

Owners of this model year most often describe the engine stalling or shutting off while driving, often with no warning beforehand. Ignition switch and anti-theft faults, air bags that do not deploy in collisions, and ABS or brake lock-up problems are also frequently described. Listed mileage runs from about 26,000 to about 145,000 miles, so these problems are not limited to high-mileage cars.

1. 1
   Engine cooling

   Engine stalls or shuts off while driving

   • 11 complaints (17%)
   • median 116,000 mi at 11.5 yrs old (3 state mileage, few)
   • filed 2002–2014

   Owners describe the engine shutting off or stalling while driving, sometimes at highway speed or while braking, and often without warning. Some describe losing steering and braking control or finding the car hard to control after the stall. Some complaints mention a traction control or TRAC OFF light coming on just before the engine cut out. Some say the dealer could not duplicate the problem, while others say it recurred after repeated dealer visits. Most reports in this group do not list mileage, and the three that do range from about 98,000 to about 145,000 miles.

   What to check: Ask the seller whether the car has ever stalled or shut off while driving, and request records of any engine, fuel pump, or electrical repairs. On a test drive, note whether a traction control or TRAC OFF light comes on and whether the engine keeps running steadily.

   2 excerpts from owner complaints in NHTSA records

   “The traction light illuminated and then the vehicle shut off completely. The vehicle has been taken in for service, but the problem could not be duplicated.”

   NHTSA complaint #10112939, filed 2005-02, 144,600 miles

   “While driving, the vehicle stalled. The consumer restarted the vehicle and drove it home. The consumer contacted the dealer for an appointment for the vehicle to be inspected and repaired. The consumer tried to start the vehicle five times to no avail. The vehicle was then started on the sixth try and driven in for service.”

   NHTSA complaint #10089669, filed 2004-08
2. 2
   Electrical system

   Ignition switch or anti-theft system faults

   • 7 complaints (11%)
   • median 64,000 mi at 4.0 yrs old (5 state mileage, few)
   • 1 mention a crash, fire or injury
   • filed 2004–2017

   Owners describe the ignition switch or anti-theft system turning the car off, activating without warning, or refusing to start, sometimes leaving the driver stranded. A complaint says a recall repair was done but the problem recurred, and a separate complaint says the dealer replaced the battery and ignition switch while the failure continued. A complaint describes the ignition switching off at about 25 mph, locking the steering wheel without warning. Some complaints say the anti-theft system would not reset, and that the key would not turn over in the ignition. Listed mileage runs from about 30,000 to about 66,000 miles, and the anti-theft reports are at about 64,000 miles.

   Recall 04V036000

   What to check: Ask whether the ignition switch recall repair was completed, and whether any anti-theft or key-turning problems have been reported. Have the seller start and stop the car repeatedly to confirm the key turns smoothly and the anti-theft light stays off.

   2 excerpts from owner complaints in NHTSA records

   “Nhtsa recall campaign #04v036000; Pontiac issued an ignition switch recall. This vehicle was not included in the recall due to VIN although the consumer experienced the same problem as those vehicle's that caused the windshield to crack and 2700 hundred dollars worth of damage to the vehicle. The rear seat belts did not work.”

   NHTSA complaint #10101792, filed 2004-12, 48,547 miles

   “The contact owns a 2001 Pontiac Sunfire. While driving 25 MPH, the ignition switched off independently and caused the steering wheel to lock without warning. The failure caused a four vehicle crash. The air bags failed to deploy and the vehicle was destroyed. It was unknown if any injuries were sustained or if a police report was filed. The manufacturer was not notified of the issue. The failure mileage was unknown. The VIN was unavailable.”

   NHTSA complaint #10661403, filed 2014-12
3. 3
   Air bags

   Air bags fail to deploy or deploy unexpectedly

   • 7 complaints (11%)
   • median 43,160 mi at 4.3 yrs old (2 state mileage, few)
   • 6 mention a crash, fire or injury
   • filed 2002–2014

   Owners describe collisions in which the air bags did not deploy, and in some reports the vehicle was totaled or destroyed. Other reports describe air bags deploying in low-speed events, such as hitting a bump at about 30 mph or a slight drop off a concrete median at under 5 mph, which led to bruising and windshield or dashboard damage. Some reports do not list mileage, and the listed mileage is about 26,000 and about 60,000 miles.

   What to check: Confirm the air bag warning light comes on at startup and then goes out, and ask for records of any air bag or crash sensor service.

   2 excerpts from owner complaints in NHTSA records

   “2001 Pontiac - airbag deployment causes total wreck june 28, 2005, ca. 1130 - on a right-angle turn at less than 5 MPH into a narrow lane in a parking area at conroe regional medical center , conroe, tx, at about 1130 june 28, the left rear wheel of my 2001 Pontiac Sunfire went up onto a 3-to-4-inch-high concrete median. When I attempted to steer off the median, the resulting slight drop caused my airbags to deploy. …”

   NHTSA complaint #10131370, filed 2005-08, 26,320 miles

   “While driving at approximately 30 MPH driver hit a bump in the road. Inadvertently the air bags deployed, breaking the windshield, and causing damage to the dashboard. Owner drove the vehicle to residence.”

   NHTSA complaint #10115517, filed 2005-03
4. 4
   Brakes

   ABS engages unexpectedly or brakes lock or fail

   • 7 complaints (11%)
   • median 64,586 mi at 5.4 yrs old (5 state mileage, few)
   • filed 2001–2014

   Owners describe the ABS engaging at about 20 mph over slight bumps and when coming to a stop, and the ABS vibrating while the car keeps rolling during a quick stop. Other reports describe rear brakes locking so the car skids sideways, and brake pedals that lock up on icy or snowy roads. A complaint says the dealer replaced the brake shoes, pads, and rotors, but the ABS engaging continued. A separate complaint says front brakes stopped working correctly even after a caliper was replaced, and that the ABS unit was suggested as a possible source. Listed mileage runs from about 45,000 to about 73,000 miles, and some reports do not list mileage.

   What to check: Ask whether the ABS warning light is on, and whether the ABS unit, brake module, or front brake parts have been tested or replaced. On a test drive at low speed in a safe, empty area, check that the car stops smoothly without unexpected pulsing or wheel lock-up.

   2 excerpts from owner complaints in NHTSA records

   “All of a sudden, my front brakes no longer worked properly?! Only rear, emergency brake and l front? Had r front caliper completely removed and replaced, yet problem still existed?! Was told something could be wrong with GM's anti lock brake unit installed into the master brake cylinder? Cost was going to be around $800.00 to replace unit that, on my vehicle was assembled in mexico?”

   NHTSA complaint #10515617, filed 2013-06, 73,000 miles

   “When the roads are icy/snowy, the brake pedal doesn't go to the floor but will lock up, make noise, and go out of control. The dealer has been notified. Ts scc”

   NHTSA complaint #8023310, filed 2002-11, 45,000 miles
5. 5
   Electrical system

   Lights and gauges fail, sometimes from wiring

   • 10 complaints (15%)
   • median 83,000 mi at 6.5 yrs old (6 state mileage, few)
   • filed 2002–2017

   Owners describe headlights, running lights, or turn signals that come on by themselves, flicker, or stop working, and gauges or the odometer that fail or flicker while driving. Some complaints link the failures to the wiring harness, and the dealer is described as having made repeated visits for front lighting faults. A complaint says the car was not drivable after the gauges and warning lights failed, and that the repair cost was high. Listed mileage runs from about 46,000 to about 84,000 miles, and some reports do not list mileage.

   What to check: Test all exterior lights, turn signals, and instrument gauges with the engine running, and ask whether any wiring or dash repairs have been done.

   2 excerpts from owner complaints in NHTSA records

   “2001 Pontiac Sunfire running lights will not work. They will flicker when the car is put into gear and then shut off completely. The check engine light came on as well as the service (wrench) light at the time of the running lights failing. I began using the highbeams only (until I could figure out the running light) and they will not work now. The headlights will still flash when the lock button is used on the key remote. I have gotten pulled over for my headlights not working because my highbeams failed in the middle of driving the vehicle. …”

   NHTSA complaint #10261665, filed 2009-03

   “Electrical system failure. Under dash wire harness needs replacement. Speedometer, tach and all other gauges failed. All safety and diagnostic lights come on ... Reputable electronics repair shop diagnosed problem and cost to repair in excess $2,000. Car not drivable, not able to sell, not able to be register in ny state.”

   NHTSA complaint #10169639, filed 2006-09, 65,000 miles

Buying note. Owners considering this model year may want to confirm whether the ignition switch recall repair was completed, since the complaints include ignition and anti-theft faults. A test drive that checks for stalling, brake feel, and light and gauge operation, along with records of any repairs, can help show whether these symptoms are present.

Summary written with AI from a sample of 57 NHTSA complaints for this model year (picked at random, with complaints that state a mileage and recent ones taken first), then checked automatically against the source records. Where a problem shows a complaint count, every complaint for this model year was matched with fixed keyword rules (written with AI and tested against the sample), and the mileage, age and repair figures are calculated from those complaints; owners' figures are as stated, not verified. Other counts refer to the sample. The excerpts come from NHTSA's public complaint records and are unverified; capitalisation is normalised, NHTSA staff notes are removed, and shortened text ends with “…”. Something wrong? Request a correction.