2012 McLaren MP4-12C Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2012 McLaren MP4-12C, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Electrical133.3%
- Exterior lighting133.3%
- Visibility133.3%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
This is the cars main navigation, radio, and other configuration critical to the cars operability and safety. McLaren calls this the IRIS system, and they issued an upgrade after the first one had many documented problems throughout the world, with the IRIS II system. They replaced them while the cars were under warranty, but once the warranty expires on your car, you have to pay upwards of $10,000 to replace what is essentially a radio touch screen. There is a high documented failure rate of the IRIS systems in following McLaren Models. The MP4-12C, the 650S, the 675LT. The part is made by Parrot in China, and they only sell the replacement screens to McLaren, creating a very expensive repair option. McLaren refuses to acknowledge a major problem. Problem: The IRIS screen which is a touch screen (resistive touch) fails to recognize your inputs. This happens typically on the right side of the screen, making it virtually impossible to use the Navigation when entering an address with the keyboard, or radio stations, or changing configuration settings. McLaren quickly replaced the IRIS I system with the IRIS II system and offered McLaren MP4-12C owners the option to upgrade from IRIS I to IRIS II. Those screens also have the same problem and stop working. A new replacement system out of warranty can cost up to $14,000. Because of the orientation of the screen, which is set in the center stack vertically, there is no aftermarket option to replace the faulty OEM unit. Your only option is to go to McLaren and pay $14,000. Due to the high failure rate in the IRIS I and IRIS II, I am asking you to please investigate the lack of response by McLaren to address the faulty units.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
The main headlights on the McLaren MP4-12C are susceptible to condensation, and mold that cannot be cleared as it is internal. This is caused by a faulty seal, or glue, holding the top clear glass, to the plastic molding which allows condensation to happen, causing the mold. Almost all McLaren MP4-12C's have the moldy headlights, reducing visibility and creating a hazard for the driver, as well as incoming traffic, as the light pattern is no longer uniform making it hard to see at night. The only solution is to replace the headlights with new ones costing more than $4,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
The contact owns a 2012 McLaren MP4-12C. The contact stated that while driving during rainy weather, the front windshield wipers intermittently failed to operate as needed. An unknown windshield wiper error message was displayed on the instrument panel. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The contact related the failure to NHTSA Campaign Number: 13V541000 (Visibility); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 8,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .