Problems owners report
Complaints filed with NHTSA about the 2018 Porsche 911 GT3, by the system named in each complaint. One complaint can name several.
- Back over prevention1
NHTSA ODI complaints (public domain) · updated 23 Oct 2026 · 0 injuries and 0 deaths reported
Compared with other years
NHTSA ODI complaints by model year
Registered new in Europe in 2018
3,151 new Porsche 911 GT3 cars were registered in the EU, Norway and Iceland in 2018; the largest markets were Germany (1,985), the United Kingdom (350), Italy (241).
- Average mass
- 1,495 kg
- Average CO₂
- 288 g/km (WLTP)
- Average power
- 368 kW
- Fuel type recorded
- Petrol 100%
European Environment Agency, CO₂ emissions from new passenger cars · averages weighted by registrations; CO₂ is the type-approval value; fuel type as recorded at registration, where many non-plug-in hybrids appear as petrol · re-use permitted with acknowledgement
In Finland
5 of these cars first registered in 2018 were in use in Finland on 30 Jun 2026.
Traficom (Finnish Transport and Communications Agency), open data on vehicles in use · CC BY 4.0
Crash-test ratings
NHTSA 5-star results for 1 variant; not yet fully rated. Rollover risk is the estimated chance of rolling over in a single-vehicle crash.
| Variant | Overall | Rollover risk |
|---|---|---|
| 2018 Porsche 911 GT3 2 DR RWD | — | 0.0 % |
- Electronic stability control
- Standard
- Forward collision warning
- No
- Lane departure warning
- No
- Best overall rating
- —
NHTSA New Car Assessment Program (5-Star Safety Ratings), api.nhtsa.gov · US federal work, public domain
Fuel consumption
Official Canadian test results for 2 variants: combined 13.9–15.1 L/100 km (about 16–17 mpg US), CO₂ 324–352 g/km.
| Variant | City | Highway | Combined |
|---|---|---|---|
| 911 GT3 · Two-seater · Premium gasoline | 15.8 | 11.6 | 13.9 |
| 911 GT3 · Two-seater · Premium gasoline | 18.0 | 11.5 | 15.1 |
Litres per 100 km. Natural Resources Canada, Fuel consumption ratings (open.canada.ca) · Open Government Licence – Canada
Recalls in Canada
3 Transport Canada recalls for the 2018 Porsche 911 GT3.
| 2020578 27 Nov 2020 | Lights And Instruments Issue: On certain vehicles, the rear reflex reflectors are mounted too low, Canadian regulations require the rear reflex reflectors to be mounted at least 380… |
| 2019621 11 Dec 2019 | Other Issue: On certain cars, the owner's manual may be missing instructions on how to properly install a child seat. Safety Risk: If a user does not understa… |
| 2019114 6 Mar 2019 | Airbag Issue: On certain vehicles, the airbag sensors may not be properly attached to the chassis. This could cause the airbag system not work as designed in a crash… |
Transport Canada Vehicle Recalls Database · Contains information licensed under the Open Government Licence – Canada
Recalls
Porsche Cars North America, Inc. (Porsche) is recalling certain 2014 Cayman and Cayman S, 2014-2016 911 GT3, 2016 911 GT3 RS and 911 R, 2018 911 GT3 and 911 GT2 RS and 2019 911 GT3 RS, 911 GT3, and 911 GT2 RS vehicles. The Child Restraint System (CRS) instructions within the Owner's Manual may not provide enough specificity for proper installation. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 225, "Child Restraint Anchorage Systems."
Whether a recall was fixed on a particular car is known only to the manufacturer: check the VIN at nhtsa.gov/recalls.
NHTSA recalls · summaries in NHTSA's own words
Service bulletins
What Porsche told its dealers about the 2018 Porsche 911 GT3: known faults, fixes and updates.
| Bulletin | Summary |
|---|---|
| 11011666 | Parts information with parts withdrawal involving the hydro-mounting - 992199384F The affected vehicles are cars that use the part number mentioned. |
| 11011572 | Parts information for parts withdrawal involving the oil separator. The affected vehicles are cars that use part number 0PC115099A |
| 11011570 | Special tools and equipment information for the WiScope UV upgrade - affecting all Porsche models |
| 11011563 | Information on PIWIS tester update 43.000.020 & .021. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11011561 | Information on PIWIS tester update 43.000.017. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11011552 | Parts information for parts withdrawal involving the camera and control unit with the camera - PAD980551 & PAD980568C. The affected vehicles are cars that use the part numbers mentioned. |
| 11011201 | Instructions on advanced technical information for the interior door panel. Warps along the top surface of the 911, Boxster, and Cayman |
| 11011200 | Information on PIWIS tester update 43.000.016. PIWIS tester updates applies to all Porsche models with an OBD2 port. |
| 11011195 | Information on PIWIS tester update 43.000.010, .011 & .015. PIWIS tester updates applies to all Porsche models with an OBD2 port. |
| 11011184 | Instructions on advanced technical information for a squeak and or rattle from the dash or instrument cluster area on the Boxsters, Caymans, and 911s. |
| 11009877 | Information on PIWIS tester update 42.950.048 |
| 11009862 | Special tools and equipment information for the mobile data signal strength in the workshop |
| 11008666 | Manufacturers certificate with an overview on approved Porsche A40 engine oils. See attached for list of affected vehicles. |
| 11008662 | Manufacturers certificate with an overview on approved Porsche C40 engine oils. See attached for list of affected vehicles. |
| 11008661 | Manufacturers certificate with an overview on approved Porsche C30 engine oils. See attached for list of affected vehicles. All MY04-20 |
| 11008660 | Manufacturers certificate with an overview on approved Porsche C20 engine oils. See attached for list of affected vehicles. |
| 11008658 | Parts information for parts withdrawal involving the windscreen. Vehicles affected are cars that use part numbers 992845011Q, 992845011AN, 992845011S, 992845011AM, 992845011BL, 992845011DB, 992845047DY, 992845047FY |
| 11008657 | Information on PIWIS tester update 42.950.040. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008637 | Information on PIWIS tester update 42.950.032. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008636 | Information on PIWIS tester update 42.950.030. PIWIS tester updates applies to all Porsche models that have an OBD2 port. |
| 11008635 | Parts information for parts withdrawal involving the booster - 7PP035223M, 7PP035223AA, 99164548000. Vehicles affected are cars that use the part numbers listed. |
| 11008624 | Information on PIWIS tester update 42.950.025 |
| 11008603 | Parts information for parts withdrawal involving the windscreen. The cars involved are cars that use the part numbers 992845011Q, 992845011AN, 992845011S, 992845011AM, 992845011BL, 992845011DB, 992845047DY, 992845047FY |
| 11008486 | Information on PIWIS tester update 42.950.021 |
| 11008479 | Parts information for parts withdrawal involving the chain tensioner - 0PB109507D |
NHTSA manufacturer communications (public domain)