Model year guide

2021 Porsche Cayenne E-Hybrid

Recalls, most-reported problems, crash-test ratings, fuel economy and what a 2021 Porsche Cayenne E-Hybrid is worth — from official NHTSA and EPA data. 1 on record.

2021 Porsche Cayenne E-Hybrid — representative photo
Representative photo

2021 Porsche Cayenne E-Hybrid at a glance

Safety recalls3
Owner complaints12
Combined21 mpg

Included: that car's specs and build sheet, model-year recall campaigns and a fair price.

2021 Porsche Cayenne E-Hybrid recalls 3

Back Over Prevention: Sensing System: Camera NHTSA Campaign #25V896000 · manufacturer #ASB2 · 19/12/2025

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."

Fix: Dealers will update the driver assistance software, free of charge. Owner notification letters were mailed February 13, 2026. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is ASB2. Vehicle Identification Numbers (VINs) involved in this recall will b…

Electrical System:propulsion System:charging:cable/cord:onboard NHTSA Campaign #23V841000 · manufacturer #APB6 · 13/12/2023

Porsche Cars North America, Inc. (Porsche) is recalling various models and model years. Please see the recall report for a list of the included vehicles. When using the industrial 220V/240V plug at the 100% charge setting, some home power outlets may be incapable of handling the electrical current required to utilize the compact charging system, causing the outlet or charging cable to overheat.

Fix: Owners are advised not to use the 220V/240V compact/portable charging cable and only use the 110V home charging cable or public charging stations. Dealers will supply a new 220V/240V compact/portable charging cable with an incorporated temperature sensor, free of charge. Owner notification letters …

Air Bags:sensor:occupant Classification:front Passenger NHTSA Campaign #21V318000 · manufacturer #AMB0 · 05/05/2021

Porsche Cars North America, Inc. (Porsche) is recalling certain 2021 Cayenne GTS, Cayenne GTS Coupe, 2020-2021 Cayenne Coupe, Cayenne S Coupe, Cayenne E-Hybrid Coupe vehicles. The passenger seat back heating element was not installed and may impact the calibration of the Occupant Classification System.

Fix: Dealers will install a heating element, free of charge. Owner notification letters were mailed June 25, 2021. Owners may contact Porsche customer service at 1-800-767-7243. Porsche's number for this recall is AMB0.

Source: U.S. NHTSA, checked 4 Nov 2026. A campaign covers the model year; to see whether a particular car still needs the repair, check its VIN on NHTSA.gov or ask a franchised dealer.

2021 Porsche Cayenne E-Hybrid common problems

The most-reported problem areas across all 12 owner complaints filed with NHTSA — and what to check before you buy.

Electrical System
Test every electrical feature: windows, locks, infotainment, charging and all lights. Watch for flickering, dead accessories or warning lights.
Air Bags
Confirm the airbag light turns on then off at startup — if it stays lit there's a fault (costly, and a safety risk). Check for signs of prior deployment.
Engine
Listen for knocks or ticking, check for leaks and blue/white exhaust smoke, and make sure it doesn't overheat. No check-engine light should be on.
Power Train
Drive through every gear: watch for slipping, hard or delayed shifts, and shudder. Check for transmission/driveline leaks and noises.
Service Brakes
Brakes should feel firm and quiet — no grinding, pulsing or pulling. Check for an ABS light and uneven pad/rotor wear.
Forward Collision Avoidance
Have a trusted mechanic inspect this system as part of a pre-purchase inspection.

2021 Porsche Cayenne E-Hybrid MPG & running costs

Combined21 mpg
City20 mpg
Highway22 mpg
Est. annual fuel cost$3,900
EPA size classStandard Sport Utility Vehicle 4WD
TransmissionAutomatic (S8)
Electric range430 mi
Charge time (240V)3 hours
Forced inductionTurbocharged
Engine start-stopYes
5-yr fuel cost vs average new car$3,000 more

Source: U.S. EPA / DOE fueleconomy.gov.

Estimated 5-year cost to own

A rough guide to what running a 2021 Porsche Cayenne E-Hybrid costs over five years and 75,000 miles.

Fuel (5 yrs)$19,500
Fuel only$19,500
Per mile$0.26

How this is estimated: fuel is the U.S. EPA annual cost at 15,000 miles a year. There aren't enough comparable listings to estimate depreciation for this model, so it is left out. Not included: insurance, maintenance, repairs, taxes, registration and finance costs. Treat it as a comparison guide, not a quote.

Dimensions & weight

Length
193.7–194.1 in
Width
78.0 in
Height
66.1–66.9 in
Wheelbase
114.2 in
Curb weight
5,060–5,203 lb
Front track
65.7–66.1 in
Rear track
65.0–65.7 in

Manufacturer-reported figures for the 2021 Porsche Cayenne E-Hybrid — ranges cover the 2 body / drivetrain versions on record. Source: Transport Canada vehicle specifications via NHTSA.

Investigations & service bulletins

NHTSA defect investigations 1

Pedestrian alert sounds Closed

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that…

NHTSA #DP22005 · Electrical System · opened Jan 2023 · closed Aug 2023

An investigation means NHTSA is examining a possible defect — it is not a recall, and many close without one.

Manufacturer service bulletins 795

Technical notes the manufacturer sent to dealers about known issues and fixes. Useful to mention to a mechanic — they are not recalls and repairs may not be covered. Showing the 10 most recent of 795.

Symptom-based workshop manual for Noises from Front Wiper Blade

Bulletin No. 96-26 · Structure, Visibility/wiper · Sep 2026

Technical Information for Need to Replace Components of the High-Voltage Battery - High-Voltage Battery Control Unit / Cell module; No Mixed Installation Permitted: Observe Specified Approach

Bulletin No. 103-25-2 · Power Train, Electrical System, Fuel/propulsion System · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils

Bulletin No. 31-26 · Power Train, Engine · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C20 Engine Oils

Bulletin No. 30-26 · Power Train, Engine · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C30 Engine Oils

Bulletin No. 29-26 · Power Train, Engine · Sep 2026

Special Tools and Equipment Information for alignment machines - Q3 2026 Software Spec Update Available

Bulletin SPTL2609 · Steering, Suspension, Wheels · Sep 2026

Technical Information for Vehicle Color in Front Display/Control Panel Wrong after Replacing Central Computer (PCM)

Bulletin No. 86-26 · Electrical System, Exterior Lighting · Sep 2026

Technical Information for Filler Flap on Vehicles with Hybrid Drive System (PHEV) Does Not Close

Bulletin No. 84-26 · Electrical System, Structure, Fuel/propulsion System · Sep 2026

Manufacturer's Certificate for Overview of Approved Porsche C40 Engine Oils

Bulletin No. 36-26 · Power Train, Engine · Sep 2026

Technical Information for Yellow Warning Message “All-Wheel Drive System Malfunction”, “C12BEF6” and “C133700” in the All-Wheel Electronics Control Unit

Bulletin No. 81-26 · Power Train, Electrical System · Sep 2026

Source: NHTSA Office of Defects Investigation, listed for the CAYENNE E-HYBRID AWD. Model-year data, not specific to one car.

2021 Porsche Cayenne E-Hybrid vehicles on record

Other Porsche Cayenne E-Hybrid model years

2021 Porsche Cayenne E-Hybrid — frequently asked questions

Does the 2021 Porsche Cayenne E-Hybrid have any safety recalls?

NHTSA lists 3 recall campaigns for the 2021 Porsche Cayenne E-Hybrid. Whether an individual car still needs a recall repair depends on its VIN — check it on NHTSA.gov or ask a franchised dealer. Recall repairs are done at no charge.

What are the most common problems with the 2021 Porsche Cayenne E-Hybrid?

Across all 12 owner complaints filed with NHTSA, the most-reported problem areas are electrical system, air bags, engine.

What gas mileage does the 2021 Porsche Cayenne E-Hybrid get?

The 2021 Porsche Cayenne E-Hybrid has a U.S. EPA estimate of 21 mpg combined (20 city / 22 highway).

Sources: NHTSA (recalls, complaints, crash tests), U.S. EPA (fuel economy). Vehicle data only — CarLogs never shows owner information.