Research · Two Seaters
2021 Porsche 718 Cayman GTSRecalls, problems, MPG & safety
NHTSA lists 0 safety recalls and 2 owner complaints for the 2021 Porsche 718 Cayman GTS. Most complaints involve engine (2). The EPA rates it 19–21 mpg combined.
Combined MPG
19–21mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
0campaigns
NHTSA
Owner complaints
2
Top: engine
Fuel cost / yr
$3,600est.
EPA estimate, best version
Safety recalls
NHTSA campaigns for this model year
0 recalls found in NHTSA data for the 2021 Porsche 718 Cayman GTS as of Nov 13, 2026.
Data from NHTSA Recalls API · synced Nov 13, 2026NHTSA vehicle page
Owner complaints by component
2 complaints filed with NHTSA · Aug 2023 – Sep 2024
- Engine2
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
By model year
Complaints for each 718 Cayman GTS model year we’ve synced.
Only one model year synced so far.
- Crashes reported
- 0
- Fires reported
- 0
- Injuries reported
- 0
- Deaths reported
- 0
Data from NHTSA Complaints API · synced Nov 13, 2026NHTSA vehicle page
What owners report most
Verbatim excerpts from NHTSA complaints, by component
Engine
2 reports
“I was driving on the highway when the oil pressure warning light came on, and then the engine completely failed. I was unable to restart the car while still coasting and was fortunately able to roll off the highway on to an exit ramp. In mid-day traffic, this could have been very dangerous. The car went straight to the dealership via flatbed - less than a year old, ~5300 miles - and it was determined the engine had seized. No cause was provided beyond 'oil exhaustion', and that there was no indication it was owner caused. The entire engine was replaced after 2 months, but I never received a full analysis or cause for the failure.”
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 13, 2026
Engines, transmissions & drive
2 versions rated by the EPA
- EPA class
- Two Seaters
- Engines
- 4.0L 6-cyl
- Transmissions
- Automatic (AM-S7) · Manual 6-spd
- Drive
- Rear-Wheel Drive
- Fuel
- Premium Gasoline
Towing, payload and dimensions aren’t in the EPA or NHTSA data, so we don’t list them.
Data from EPA fueleconomy.gov · synced Nov 13, 2026EPA listing
EPA fuel economy by version
City / highway / combined, annual fuel cost and CO₂
EPA
| Version | City | Hwy | Comb. | Fuel / yr | CO₂ g/mi |
|---|---|---|---|---|---|
| 718 Cayman GTS Auto (AM-S7), 6 cyl, 4.0 L · Rear-Wheel Drive | 19 | 24 | 21 | $3,600 | 418 |
| 718 Cayman GTS Man 6-spd, 6 cyl, 4.0 L · Rear-Wheel Drive | 17 | 24 | 19 | $3,950 | 458 |
- 21mpg comb.
- 19mpg comb.
Data from EPA fueleconomy.gov · synced Nov 13, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
NHTSA 5-Star Safety Ratings
1 tested variant
NHTSA has not published 5-Star Safety Ratings for the 2021 Porsche 718 Cayman GTS as of Nov 13, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Nov 13, 2026Vehicle 15785
Maintenance basics
General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
| Item | Miles | Time | Note |
|---|---|---|---|
| Engine oil & filter | 5,000–10,000 mi | 6–12 months | Follow the oil-life monitor if fitted |
| Tire rotation | 5,000–7,500 mi | Every oil change | Check pressure monthly |
| Engine air filter | 15,000–30,000 mi | 1–2 years | Sooner in dusty areas |
| Cabin air filter | 15,000–25,000 mi | 1–2 years | |
| Brake fluid | — | 2–3 years | Absorbs moisture over time |
| Coolant | 60,000–100,000 mi | 5–10 years | Long-life coolants last longer |
| Spark plugs | 60,000–100,000 mi | — | Iridium/platinum plugs at the long end |
| 12V battery | — | 3–5 years | Heat shortens battery life |
- Engine oil & filter5,000–10,000 mi
6–12 months - Tire rotation5,000–7,500 mi
Every oil change - Engine air filter15,000–30,000 mi
1–2 years - Cabin air filter15,000–25,000 mi
1–2 years - Brake fluid—
2–3 years - Coolant60,000–100,000 mi
5–10 years - Spark plugs60,000–100,000 mi
— - 12V battery—
3–5 years
Typical intervals for modern cars. Severe service (towing, short trips, extreme heat or cold) shortens them.
2021 718 Cayman GTS questions
How many recalls does the 2021 Porsche 718 Cayman GTS have?
0 recalls found in NHTSA data as of Nov 13, 2026.
What are the most common 2021 Porsche 718 Cayman GTS problems?
Owners filed 2 complaints with NHTSA. The most-cited components are engine (2). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.
What MPG does the 2021 Porsche 718 Cayman GTS get?
The EPA rates the 2021 Porsche 718 Cayman GTS at 19–21 mpg combined, depending on engine and drivetrain (2 versions rated).
Data from NHTSA & EPA · synced Nov 13, 2026