Research · Standard Sport Utility Vehicle 4WD · 2 NHTSA variants

2021 Porsche CayenneRecalls, problems, MPG & safety

NHTSA lists 5 safety recalls and 21 owner complaints for the 2021 Porsche Cayenne. Most complaints involve electrical system (6) and air bags (4). The EPA rates it 20 mpg combined.

Combined MPG
20mpg
EPA · 2 versions
NHTSA overall
—
Not rated by NCAP
Safety recalls
5campaigns
Latest Dec 2025
Owner complaints
21
Top: electrical system
Fuel cost / yr
$4,000est.
EPA estimate, best version
01 —Recalls

Safety recalls

5 NHTSA campaigns · applies to some vehicles, check your VIN

Back over prevention: camera

Free remedy

Porsche Cars North America, Inc. (Porsche) is recalling certain 2019-2025 Cayenne, Cayenne E-Hybrid, 2020-2025 911, Taycan, 2024-2025 Panamera, and 2025 Panamera E-Hybrid vehicles. The rearview camera image may not display when the vehicle is placed in reverse. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 111, "Rear Visibility."

Back over preventionReported Dec 19, 2025NHTSA 25V896000

Suspension: rear

Free remedy

Porsche Cars North America, Inc. (Porsche) is recalling certain 2021-2022 Cayenne vehicles. The rear axle alignment may not have been inspected after the repairs for Recall 21V-271 (AMA9) were performed.

SuspensionReported Jan 28, 2022NHTSA 22V040000

Steering: column

Free remedy

Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne vehicles. The screw connection between the steering column and steering box may fail, which can result in a detached steering column.

SteeringReported Jun 30, 2021NHTSA 21V493000
Data from NHTSA Recalls API · synced Oct 28, 2026 · All recall detailsNHTSA vehicle page
02 —Complaints

Owner complaints by component

21 complaints filed with NHTSA · Sep 2021 – Aug 2026
  1. Electrical system6
  2. Air bags4
  3. Engine3
  4. Steering2
  5. Forward collision avoidance2
  6. Power train2
  7. Service brakes2
  8. Fuel/propulsion system1
  9. Seat belts1

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 Cayenne model year we’ve synced.

View as table
Model yearNHTSA complaints
2004101
200542
200655
200842
200915
20101
201162
201236
201340
201453
201640
201718
201813
201947
202024
202121
20224
20235
20245
20265
Crashes reported
0
Fires reported
0
Injuries reported
0
Deaths reported
0
Data from NHTSA Complaints API · synced Oct 28, 2026 · Full problem breakdownNHTSA vehicle page
03 —Common problems

What owners report most

Verbatim excerpts from NHTSA complaints, by component

Electrical system

6 reports
“Battery completely discharged and the safety switch in the battery malfunctions and battery can not be charged again. There are many complaints seen online about the battery problems Porsche has. This strands the car and me the driver. The dealer and independent mechanics said the same. There were no warning lamps or messages prior to the failure.”
Owner complaint to NHTSAFiled Aug 6, 2026Electrical systemODI 11755286

Air bags

4 reports
“Over approximately the past month, the leather covering on the dashboard of my 2021 Porsche Cayenne has rapidly begun lifting, buckling, and separating across a substantial portion of the dashboard. The deformation has become increasingly pronounced in a short period of time despite normal use and careful maintenance of the vehicle. I am concerned that this may present a safety issue because the passenger airbag deploys through the dashboard area. The dashboard material is visibly distorted and separating, and I am concerned that this deformation could potentially interfere with the intended deployment path or performance of the passenger airbag in a collision. This does not appear to be normal cosmetic wear. The affected area is not routinely touched or subjected to ordinary wear, and the condition developed quickly on a relatively recent vehicle. I have also found reports from other owners of similar Porsche Cayenne model years describing comparable dashboard leather lifting, bubbling, warping, or delamination. Because of the location of the defect and the potential relationship to the passenger-airbag deployment area, I am requesting that NHTSA review this…”
Owner complaint to NHTSAFiled Aug 25, 2026Air bags, Unknown or otherODI 11759576

Engine

3 reports
“On my 2021 Porsche Cayenne Base, which is equipped with the 3.0L V6 EA839 engine, I brought the vehicle to the dealership for a recall service. During inspection, the dealership found a leaking water pump and quoted $8,500 for repairs. There were no visible signs of a coolant leak on the ground, indicating an internal seal failure. My independent technician confirmed that coolant is leaking internally into the vacuum system. This EA839 engine architecture is shared across multiple Volkswagen Group models, including Audi A6, A7, A8, Q7, and Q8, where this water pump internal leak is a known, widespread manufacturer defect that has already triggered class action lawsuits.”
Owner complaint to NHTSAFiled Aug 31, 2026Engine, Fuel/propulsion systemODI 11760942
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026
04 —Key specs

Engines, transmissions & drive

2 versions rated by the EPA
EPA class
Standard Sport Utility Vehicle 4WD
Engines
3.0L 6-cyl turbo
Transmissions
Automatic (S8)
Drive
All-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 Oct 28, 2026EPA listing
05 —Fuel economy

EPA fuel economy by version

City / highway / combined, annual fuel cost and CO₂
EPA
VersionCityHwyComb.Fuel / yrCO₂ g/mi
Cayenne
Auto (S8), 6 cyl, 3.0 L, Turbo · All-Wheel Drive
192320$4,000432
Cayenne Coupe
Auto (S8), 6 cyl, 3.0 L, Turbo · All-Wheel Drive
192320$4,000437
  • Cayenne
    Auto (S8), 6 cyl, 3.0 L, Turbo
    19 city · 23 hwy · $4,000/yr
    20
    mpg comb.
  • Cayenne Coupe
    Auto (S8), 6 cyl, 3.0 L, Turbo
    19 city · 23 hwy · $4,000/yr
    20
    mpg comb.
Data from EPA fueleconomy.gov · synced Oct 28, 2026 · Fuel cost is EPA’s annual estimate (15,000 mi, 55% city)
06 —Safety

NHTSA 5-Star Safety Ratings

2 tested variants
NHTSA has not published 5-Star Safety Ratings for the 2021 Porsche Cayenne as of Oct 28, 2026.
Data from NHTSA NCAP Safety Ratings API · synced Oct 28, 2026Vehicle 15775Vehicle 15781
07 —Maintenance

Maintenance basics

General guidance, not the OEM schedule. Check your owner’s manual.
General guidance
ItemMilesTimeNote
Engine oil & filter5,000–10,000 mi6–12 monthsFollow the oil-life monitor if fitted
Tire rotation5,000–7,500 miEvery oil changeCheck pressure monthly
Engine air filter15,000–30,000 mi1–2 yearsSooner in dusty areas
Cabin air filter15,000–25,000 mi1–2 years
Brake fluid—2–3 yearsAbsorbs moisture over time
Coolant60,000–100,000 mi5–10 yearsLong-life coolants last longer
Spark plugs60,000–100,000 mi—Iridium/platinum plugs at the long end
12V battery—3–5 yearsHeat 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.
09 —FAQ

2021 Cayenne questions

How many recalls does the 2021 Porsche Cayenne have?

5 safety recalls as of Oct 28, 2026, according to NHTSA. Recall repairs are free at a dealer. Check your VIN to see whether your car is included and whether the repair was done.

What are the most common 2021 Porsche Cayenne problems?

Owners filed 21 complaints with NHTSA. The most-cited components are electrical system (6), air bags (4), engine (3). Complaints are unverified owner reports and aren't adjusted for how many cars were sold.

What MPG does the 2021 Porsche Cayenne get?

The EPA rates the 2021 Porsche Cayenne at 20 mpg combined, depending on engine and drivetrain (2 versions rated).

Data from NHTSA & EPA · synced Oct 28, 2026