Pontiac Grand Am 1999–2005
5th generation · GM N-body (GMX130)
NHTSA data through 13 August 20264,546 complaints, 2,401 with mileageMethod
- Reports with mileage
- 2,401
- Median of reported failures
- 70,000 mi
- Most-reported system
- Electrical system (22.3%)
- Recalls
- 1
Before-you-buy checklist ↓Check this VIN — NHTSA ↗
On this generation, failures are spread across the mileage range, with the middle half between 43,000 and 103,185 miles.
Figure 1 · Pontiac Grand Am 1999–2005 · 2,401 reports with mileage
Mileage at failure
Complaints per 5,000-mile bin, 0 to 200,000 miles, equal bins on a linear scale. Tallest bar = 120 complaints.
- Rest of the range
- Median
- 200,000+ — 42 complaints (1.7%), plotted separately
- 10%
- 19,920
- 25%
- 43,000
- Median
- 70,000
- 75%
- 103,185
- 90%
- 145,000
Show the numbers
| Mileage | Complaints | Share |
|---|---|---|
| 0–5,000 | 80 | 3.3% |
| 5,000–10,000 | 45 | 1.9% |
| 10,000–15,000 | 61 | 2.5% |
| 15,000–20,000 | 55 | 2.3% |
| 20,000–25,000 | 39 | 1.6% |
| 25,000–30,000 | 59 | 2.5% |
| 30,000–35,000 | 101 | 4.2% |
| 35,000–40,000 | 91 | 3.8% |
| 40,000–45,000 | 106 | 4.4% |
| 45,000–50,000 | 116 | 4.8% |
| 50,000–55,000 | 120 | 5.0% |
| 55,000–60,000 | 104 | 4.3% |
| 60,000–65,000 | 116 | 4.8% |
| 65,000–70,000 | 79 | 3.3% |
| 70,000–75,000 | 95 | 4.0% |
| 75,000–80,000 | 118 | 4.9% |
| 80,000–85,000 | 101 | 4.2% |
| 85,000–90,000 | 89 | 3.7% |
| 90,000–95,000 | 60 | 2.5% |
| 95,000–100,000 | 91 | 3.8% |
| 100,000–105,000 | 89 | 3.7% |
| 105,000–110,000 | 46 | 1.9% |
| 110,000–115,000 | 49 | 2.0% |
| 115,000–120,000 | 48 | 2.0% |
| 120,000–125,000 | 63 | 2.6% |
| 125,000–130,000 | 40 | 1.7% |
| 130,000–135,000 | 46 | 1.9% |
| 135,000–140,000 | 20 | 0.8% |
| 140,000–145,000 | 29 | 1.2% |
| 145,000–150,000 | 40 | 1.7% |
| 150,000–155,000 | 47 | 2.0% |
| 155,000–160,000 | 9 | 0.4% |
| 160,000–165,000 | 15 | 0.6% |
| 165,000–170,000 | 10 | 0.4% |
| 170,000–175,000 | 24 | 1.0% |
| 175,000–180,000 | 22 | 0.9% |
| 180,000–185,000 | 21 | 0.9% |
| 185,000–190,000 | 3 | 0.1% |
| 190,000–195,000 | 7 | 0.3% |
| 195,000–200,000 | 5 | 0.2% |
| 200,000+ | 42 | 1.7% |
Source: NHTSA Office of Defects Investigation, public domain. Complaint counts reflect what owners reported and are not a measure of failure rate per vehicle sold.
What this can and cannot tell you: these are complaints owners chose to file, not a failure rate. Popular models accumulate more of them simply by being common. How this is built.
Owners filed 4,546 complaints with NHTSA about the 1999–2005 Pontiac Grand Am, and 2,401 of them record the mileage at which the failure happened. That is enough to show not just what fails, but when.
Failures are spread across the mileage range, with the middle half between 43,000 and 103,185 miles. The median is 70,000 miles.
The most-reported areas are the electrical system (22.3% of complaints, typically around 83,000 miles), the exterior lighting (13.5% of complaints, typically around 69,000 miles), the hydraulic brake circuit (11.5% of complaints, typically around 37,000 miles).
1 recall campaign cover this generation.
If you arrived asking “is it reliable?” — this page answers the version of that question the data can support: which problems owners reported, and at what mileage.
How many miles does a 1999–2005 Pontiac Grand Am last?
Half of the failure reports on the 1999–2005 Pontiac Grand Am were filed by 70,000 miles and 90% by 145,000 miles — figures drawn from 2,401 NHTSA complaints that record an odometer reading, so they time reported failures, not the cars whose owners never filed one.
42 reports (1.7%) came in past 200,000 miles — each one proof a Grand Am reached that mileage, not that it died there.
Before you buy a 1999–2005 Grand Am: the 3-minute check
Generated from 2,401 mileage-tagged complaints, 1 recall campaign, 4 documented problem areas. Print this page — the checklist survives print.
- Run the VIN at nhtsa.gov/recalls. 1 campaign cover this generation; an open recall is a free repair you can make the seller's problem.
- Check engine - intake manifold on 1999–2005 (3.4L V6) cars. 3.4L LA1 V6 lower intake manifold gasket failure: the gasket carrier and sealing beads deteriorate, letting coolant into the lifter valley and oil, or leaking externally at the head-to-block junction. Frequently…
- Check engine - cylinder head on 1999–2001 (2.4L) cars. 2.4L LD9 head gasket failure and coolant loss; the LD9 was dropped after 2001 in favor of the 2.2L Ecotec.
- Check electrical - anti-theft on 1999–2005 cars. Passlock II theft-deterrent no-start: the ignition-cylinder Hall-effect sensor degrades, the BCM disables fuel, and the car cranks but will not start until a 10-30 minute relearn.
- Complaint reports are not spread evenly across model years here — see the by-model-year table below before you settle on a year.
- End with a pre-purchase inspection of this car. Aggregate data describes the population; the example in front of you has its own history.
For a buyer, failures on this generation are spread rather than concentrated: the middle half falls between 43,000 and 103,000 miles, with a median of 70,000. There is no single mileage threshold to watch, which means condition and maintenance records are more informative than the odometer.
On inspection, the electrical system and the exterior lighting are where this generation's reports concentrate, so those are the areas worth a specific look. The exterior lighting in particular shows a median failure mileage of 69,000, which gives a concrete number to compare against the odometer of any car you are considering.
None of this is a substitute for a pre-purchase inspection on the individual car. Aggregate patterns describe a population; the example in front of you has its own history.
What fails, and when
Figure 2 · Pontiac Grand Am 1999–2005
When each system fails
Bar spans the middle half of reports; the notch inside each bar is the median. Miles at failure on a proportional scale — equal distances are equal ratios, not equal miles.
- Hydraulic brake circuit521 reports37,00018,000–57,000Hydraulic brake circuit: 521 reports, median 37,000 miles, middle half 18,000 to 57,000 miles.
- Engine and its cooling system427 reports60,00043,000–80,000Engine and its cooling system: 427 reports, median 60,000 miles, middle half 43,000 to 80,000 miles.
- Visibility equipment231 reports62,00038,000–90,000Visibility equipment: 231 reports, median 62,000 miles, middle half 38,000 to 90,000 miles.
- Exterior lighting614 reports69,00047,000–100,000Exterior lighting: 614 reports, median 69,000 miles, middle half 47,000 to 100,000 miles.
- Steering197 reports76,00032,000–111,000Steering: 197 reports, median 76,000 miles, middle half 32,000 to 111,000 miles.
- Electrical system1,016 reports83,00053,000–118,000Electrical system: 1,016 reports, median 83,000 miles, middle half 53,000 to 118,000 miles.
- Airbag system195 reports84,00056,000–139,000Airbag system: 195 reports, median 84,000 miles, middle half 56,000 to 139,000 miles.
- Your odometer — appears after you enter it in “Where your car sits”
Ordered by median mileage, earliest first. The first 12,000 miles are shaded: that is the boundary this site uses between a manufacturing defect and ordinary wear, not a property of the world.
Source: NHTSA Office of Defects Investigation, public domain.
| System | Complaints | Share | Median | 25–75% |
|---|---|---|---|---|
| Electrical system | 1,016 | 22.3% | 83,000 | 53,000–118,000 |
| Exterior lighting | 614 | 13.5% | 69,000 | 47,000–100,000 |
| Hydraulic brake circuit | 521 | 11.5% | 37,000 | 18,000–57,000 |
| Engine and its cooling system | 427 | 9.4% | 60,000 | 43,000–80,000 |
| Visibility equipment | 231 | 5.1% | 62,000 | 38,000–90,000 |
| Steering | 197 | 4.3% | 76,000 | 32,000–111,000 |
| Airbag system | 195 | 4.3% | 84,000 | 56,000–139,000 |
| Suspension | 194 | 4.3% | 67,000 | 40,000–90,000 |
| Body structure | 136 | 3.0% | 70,000 | 37,000–114,000 |
| Fuel system | 130 | 2.9% | 62,000 | 40,000–85,000 |
Where your car sits
Failure reports by the odometer reading they were filed at. Pick the anchor nearest your car — or type the exact mileage: your marker lands on this curve and on the timing chart above.
Figure 3 · Pontiac Grand Am 1999–2005 · 2,401 reports with mileage
Share of reports below each mileage
Share of mileage-tagged reports filed at or below each odometer reading. Steps rise only at bin edges, by exact counted shares.
- 60,000 mi — 41% of reports below
- 90,000 mi — 66% of reports below
- 120,000 mi — 82% of reports below
- Median — the staircase crosses the 50% line here
- Your odometer — appears after you enter it below
The staircase tops out at 98%: the remaining 1.7% of reports (42) came above 200,000 miles.
Nothing is smoothed or interpolated. Linear axis, same as Figure 1.
Source: NHTSA Office of Defects Investigation, public domain.
At 60,000 miles
41% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Hydraulic brake circuit — median 37,000 mi
In the reporting window
- Electrical system — middle half 53,000–118,000 mi
- Exterior lighting — middle half 47,000–100,000 mi
- Engine and its cooling system — middle half 43,000–80,000 mi
- Visibility equipment — middle half 38,000–90,000 mi
- Steering — middle half 32,000–111,000 mi
- Airbag system — middle half 56,000–139,000 mi
At 90,000 miles
66% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Hydraulic brake circuit — median 37,000 mi
- Engine and its cooling system — median 60,000 mi
- Visibility equipment — median 62,000 mi
In the reporting window
- Electrical system — middle half 53,000–118,000 mi
- Exterior lighting — middle half 47,000–100,000 mi
- Steering — middle half 32,000–111,000 mi
- Airbag system — middle half 56,000–139,000 mi
At 120,000 miles
82% of the failure reports on this generation came below this mileage. That describes reports, not your odds.
Reported earlier than this mileage — ask for repair records
- Electrical system — median 83,000 mi
- Exterior lighting — median 69,000 mi
- Hydraulic brake circuit — median 37,000 mi
- Engine and its cooling system — median 60,000 mi
- Visibility equipment — median 62,000 mi
- Steering — median 76,000 mi
In the reporting window
- Airbag system — middle half 56,000–139,000 mi
Which systems, and when
Complaints about this generation are not spread evenly across the vehicle, and the systems that generate the most of them do not all fail at the same point in a car's life. The median failure across all systems here is 70,000 miles; the figures below show which parts of the car run ahead of that and which run behind.
The electrical system accounts for 22.3% of complaints (1,016 reports, 664 of them with a mileage figure), with a median of 83,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 53,000 and 118,000 miles.
The exterior lighting accounts for 13.5% of complaints (614 reports, 382 of them with a mileage figure), with a median of 69,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 47,000 and 100,000 miles.
The hydraulic brake circuit accounts for 11.5% of complaints (521 reports, 145 of them with a mileage figure), and it fails early — a median of 37,000 miles, well before the vehicle's overall median. Failures clustered this far below the rest of the car usually point to a design or manufacturing problem rather than wear, because wear does not selectively target one system on low-mileage examples. The middle half of these reports falls between 18,000 and 57,000 miles.
The engine and its cooling system accounts for 9.4% of complaints (427 reports, 246 of them with a mileage figure), with a median of 60,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 43,000 and 80,000 miles.
Visibility equipment accounts for 5.1% of complaints (231 reports, 102 of them with a mileage figure), with a median of 62,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 38,000 and 90,000 miles.
The steering accounts for 4.3% of complaints (197 reports, 91 of them with a mileage figure), with a median of 76,000 miles, close to the vehicle's overall pattern. The middle half of these reports falls between 32,000 and 111,000 miles.
Differences between model years
Within this generation, complaint volume is not constant across model years. The 1999 model year drew the most — 1,318 complaints — while 2005 drew the fewest at 143. The median year sits at 549.
That makes 1999 an outlier: roughly 2.4 times the median year of this generation. A single year standing that far apart usually reflects either a first-year issue that was later corrected, or a component change introduced for that year. Anyone shopping this generation has a straightforward reason to prefer a different year, all else being equal.
Recalls and what they cover
NHTSA records 1 recall campaign covering vehicles in this generation. A recall means the manufacturer or the regulator concluded there was a safety defect or a standard was not met, and that a free remedy is owed to owners — including second and later owners.
Recall status is specific to the individual vehicle, not the model. Checking a VIN against NHTSA's lookup is free and takes under a minute, and it is the only way to know whether a particular car has had the work done.
Reported severity
What owners reported alongside the failure itself, out of 4,546 complaints against this generation:
- Crashes
- 325 (7.1%)
- Fires
- 64
- Injury reports
- 225
- Fatality reports
- 23
These flags are self-reported by complainants and unverified by NHTSA; one report can carry several flags, so the counts overlap and do not sum to a total. They are not adjusted for how many of these vehicles are on the road. No chart is drawn here on purpose: overlapping counts spanning very different magnitudes cannot be honestly encoded as lengths.
Documented problems
Engine - Intake Manifold 1999–2005 (3.4L V6)
3.4L LA1 V6 lower intake manifold gasket failure: the gasket carrier and sealing beads deteriorate, letting coolant into the lifter valley and oil, or leaking externally at the head-to-block junction. Frequently escalates to overheating and secondary head gasket failure if not caught. Same failure family as the GM Dex-Cool 3.1L/3.4L class action.
Engine - Cylinder Head 1999–2001 (2.4L)
2.4L LD9 head gasket failure and coolant loss; the LD9 was dropped after 2001 in favor of the 2.2L Ecotec.
Electrical - Anti-Theft 1999–2005
Passlock II theft-deterrent no-start: the ignition-cylinder Hall-effect sensor degrades, the BCM disables fuel, and the car cranks but will not start until a 10-30 minute relearn.
Brakes 1999–2005
Front rotor thickness variation / warping producing pedal pulsation, a high-frequency owner complaint on this platform.
By model year
| Year | Complaints | With mileage |
|---|---|---|
| 1999 | 1,318 | 397 |
| 2000 | 939 | 436 |
| 2001 | 759 | 479 |
| 2002 | 549 | 367 |
| 2003 | 436 | 307 |
| 2004 | 402 | 298 |
| 2005 | 143 | 117 |
Recalls (1) — is your car included?
Sep 2014 · 1999–2005 · Electrical SystemIf the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash…
The defect. This defect can affect the safe operation of the airbag system. Until this recall is performed, customers should remove all items from their key rings, leaving only the ignition key. The key fob (if applicable), should also be removed from the key ring. General Motors LLC (GM) notified the agency on July 3, 2014, that they are recalling 5,877,718 model year 2000-2005 Chevrolet Impala and Monte Carlo, 1997-2003 Chevrolet Malibu, 2004-2005 Malibu Classic, 1999-2004 Oldsmobile Alero, 1998-2002 Oldsmobile Intrigue, 1999-2005 Pontiac Grand Am and 2004-2008 Pontiac Grand Prix vehicles. In the
What can happen. If the key is not in the run position, the air bags may not deploy if the vehicle is involved in a crash, increasing the risk of injury.
The free fix. GM will notify owners, and dealers will install two key rings and an insert in the key slot or a cover over the key head on all ignition keys, free of charge. The recall began on September 9, 2014. GM's number for this recall is 14350.
What owners reported
My major complaint is the black glossy paint that is peeling from the side door/rear quarter window pilars. The dealer said that this is not covered under warranty, and i have had several quotes to have it fixed which are in the range of $250 to $500. The side mirror fell off in a car wash two months after the…
1999 · 1,500 miles · Visibility equipment
On thursday may 12th i opened my car door and heard a load crack, after reviewing my car with several co-workers we found noting visible wrong. On saturday may 14th, i pulled into my driveway heard another load crack at that time the spring on the drivers side front broke into two pieces, 1 with a very sharp edge went…
1999 · 11,000 miles · Suspension
1999 Pontiac Grand Am 2.4 L auto severe brake failure---replacement of pads 8 times, rotors 3 times and calipers 2 times in 80,000 miles. Brakes occasionally lock up and make loud grinding and squealing noises steering shudders and vehicle pulls to left.. Participating Pontiac dealer failed to fix this problem since…
1999 · 11,000 miles · Exterior lighting
Built from 2,401 NHTSA complaints with mileage · snapshot 2026-08-18 · open data · reproduce this page