2005 Pontiac Montana problems & reliability
81 owner complaints filed with NHTSA for the 2005 Pontiac Montana, alongside 5 safety recall campaigns. Last verified Aug 7, 2026. Complaints are unverified reports submitted by owners to the federal Office of Defects Investigation.
Each complaint is counted once (by NHTSA case number), even when it names several vehicles.
8 complaints report injuries (16 injured, 1 deaths reported).
Most reported problems
| Component | Complaints | Share |
|---|---|---|
| Structure | 21 | 26% |
| Latches/locks/linkages | 19 | 23% |
| Electrical System | 17 | 21% |
| Air Bags | 7 | 9% |
| Power Train | 6 | 7% |
| Unknown OR Other | 6 | 7% |
| Service Brakes, Hydraulic | 5 | 6% |
| Engine | 4 | 5% |
| Seats | 4 | 5% |
| Suspension | 4 | 5% |
Component groups as classified by NHTSA. A complaint can name more than one component, so shares may sum to more than 100%.
Mileage when problems occurred
Half of the failures with a reported odometer reading occurred by 38,500 miles (middle 50% between 15,190 and 73,750 miles), based on 58 complaints that included mileage.
Complaints by incident year
What owners report
“When I start the engine & try to put in another it it nearly impossible. With engine on, it smells of gasoline! I'm afraid I will die from the fumes. Transmission only goes up to 20 mph. I know there is a gas leak and I want others to be notified before my family or someone else's family catch fire and burn to death!…”
Fuel/propulsion System · filed Apr 19, 2023
“Vehicle has been properly maintained under hood components for years. One day I started it up and was smoking heavily. No evidence has been shown to be a failure to maintain. No loose or bare wires, nothing unordinary going on under the hood that could cause this. No signs of operator error so forth. *tr”
Engine · filed Apr 8, 2020
“My gas gauge stopped working and is flucating and the dash reading is saying things. Its all messed up”
Electrical System · filed Mar 12, 2020
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Federal defect investigations
- POWER SLIDING DOOR
Engineering Analysis EA07019 · opened Dec 11, 2007 · closed Feb 23, 2009
- POWER SLIDING DOOR OPENING
Preliminary Evaluation PE07044 · opened Aug 16, 2007 · closed Dec 11, 2007
- ELECTRICAL HARNESS DAMAGE
Preliminary Evaluation PE05063 · opened Nov 29, 2005 · closed Mar 6, 2006
Technical service bulletins
567 manufacturer communications (TSBs, service campaigns, warranty extensions) are on file with NHTSA for the 2005 Pontiac Montana. The 10 most recent:
This PI directs technician to training regarding sliding door operation.
PIT3532C · Service Bulletin/Repair Instructions · issued Jan 30, 2026
This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
PIP5601C · Service Bulletin/Repair Instructions · issued Jul 18, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
PIT5074R · Service Bulletin/Repair Instructions · issued May 30, 2025
This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or…
PIP5358D · Service Bulletin/Repair Instructions · issued Feb 20, 2025
This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8…
PIP4723J · Service Bulletin/Repair Instructions · issued Oct 25, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician…
PIT5099H · Service Bulletin/Repair Instructions · issued Sep 12, 2024
This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. and Canada Dealers Only).
02-00-89-002X · Service Bulletin/Repair Instructions · issued Sep 9, 2024
TSBs are repair guidance manufacturers send to dealers — they are not recalls and repairs are not automatically free. Full documents are available on NHTSA’s site.
Safety recalls
The 2005 Pontiac Montana has 5 NHTSA recall campaigns — recall repairs are free at franchised dealers regardless of the vehicle’s age.
Check whether your specific vehicle is affected
Recall campaigns often cover only certain VIN ranges. Enter your VIN on the official NHTSA site to confirm whether your vehicle is included and whether the repair is still open.
Check VIN on NHTSA →Buying a used 2005 Pontiac Montana?
- · Decode the seller’s VIN with our free VIN decoder to confirm the exact year, engine and trim.
- · Check for unrepaired recalls by VIN on NHTSA’s official lookup — recall repairs are free.
- · Owners most often reported problems around 38,500 miles — budget accordingly if the car is approaching that mileage.