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2023 Mclaren GT maintenance schedule

The 2023 GT is part of the MonoCell II-T generation (2020-2024), sold as a coupe. Below: its service intervals with the source behind each one, the fluids it takes, the problems owners report for this year, and the NHTSA recalls issued for it.

Service schedule

What the 2023 GT needs, and when

1 of these 9 items comes from Mclaren's own published schedule. Manufacturer rows link to Mclaren's own schedule, Independent rows to a service shop or parts retailer's published guide. Rows marked Unverified have no source Carlyle could confirm and are shown for completeness.

ServiceIntervalSource
Engine oil and filter (M840TE)

Synthetic oil change with suspension/damping diagnostic sweep

9,000 mi / 1 yearManufacturer
Engine air filter (M840TE)

Inspected at 10k, replaced at 20k

20,000 mi / 2 yearsIndependent
Cabin air filter (M840TE)

Bundled with Service B

20,000 mi / 2 yearsIndependent
Brake fluid (M840TE)

Full flush, biennial; time-based only

2 yearsIndependent
Engine coolant (M840TE)

Full thermal flush; time-based only

6 yearsIndependent
Transmission fluid (M840TE)

SSG fluid drain and refill

30,000 mi / 3 yearsIndependent
Spark plugs (M840TE)

Plug replacement, detuned M840TE

36,000 mi / 6 yearsIndependent
Serpentine belt (M840TE)

Condition-based; evaluated at each oil service

Inspect, replace as neededUnverified
12V battery (M840TE)

Annual diagnostic conditioning

1 yearIndependent

Intervals are for normal driving; towing, short trips, extreme heat or dust shorten them. Services we could not find an interval for are left off rather than guessed.

Fluids and engines

What goes in it

Engine oil
0W-40 / 5W-40
Transmission fluid
75W-90 GL-5

Powertrains in this generation

  • 4.0 L 8-cyl (M840TE), 612 hp, 7-speed SSG dual-clutch, RWD

Confirm the exact spec against the owner's manual or the label under the hood; capacities vary by engine and drivetrain.

Known problems

What 2023 GT owners run into

Problems reported for this model year, with the mileage they tend to show up at. Buying past a window is not automatically a pass - it just needs to be priced in.

Dual-mass flywheel failure

high severity

$1,300 to fix

Strong driveline vibration with engagement hesitation, shuddering at low-speed clutch actuation, or stalling on aggressive downshifts

Source: ebay.com

Front windshield glass damage

medium severity

$2,159-$2,399 to fix

Stress fractures or adhesive seal failure causing moisture ingress, wind noise, and risk of water damage to electronics behind the dash

Source: ebay.com

Safety recalls

2 NHTSA recalls for the 2023 Mclaren GT

From NHTSA's recall database, matched by model and year. Recall repairs are free at Mclaren dealers, and a given car may already be fixed or fall outside a campaign, so check the VIN at nhtsa.gov/recalls before you buy.

Service brakes, hydraulic

NHTSA 25V216000

April 2025

McLaren Automotive Incorporated (McClaren) is recalling certain 2020-2025 600LT, 720S, Artura, GT, and GTS vehicles. The brake lines may be routed incorrectly and cause the brakes on the incorrect side to activate, possibly resulting in one of the rear wheels locking up.

Remedy: Dealers will inspect and correct the brake line connections as necessary, free of charge. Owner notification letters were mailed on April 21, 2025. Owners may contact McClaren customer service at 1-646-429-8916.

Latches/locks/linkages

NHTSA 24V661000

September 2024

McLaren Automotive Incorporated (McLaren) is recalling certain 2020-2023 McLaren GT vehicles. The manual release cable of the hood latch may have excessive tension that can cause the latch to open, resulting in the hood opening unexpectedly.

Remedy: McLaren will replace the hood latch, free of charge. Owner notification letters were mailed December 11, 2024. Owners may contact McLaren customer service at 855-202-8815.

Running costs

What maintenance typically costs

A typical year of maintenance
$2,000

Typical US independent-shop estimates for this generation; they vary by region and condition.

Other GT model years

MonoCell II-T (2020-2024)

20202021202220232024

Shopping new? The Mclaren GT guide covers the current model, with what it costs to keep for 1 to 15 years.

Sources

Researched 2026-09-20. Modeling, not mechanic advice - always confirm against your car's owner's manual and service records.

Running a GT for income?

Carlyle scores the exact listing on cost per remaining mile and projected Turo income, so you know what a 2023 GT earns before you buy it.

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