2026 Toyota Sienna

Toyota Safety Sense is the suite of driver assistance features like automatic emergency braking and lane keeping. The 2026 Sienna uses the older Safety Sense 2.0 version instead of the newer 3.0 or 3....

New Sienna owners expect two key fobs but receive only one, with the promised second key failing to arrive months later.

The Sienna's connected services module continuously collects vehicle data and maintains a cellular connection, which many owners discover only after purchase.

Features like remote start work during a trial but then require paid subscriptions, which dealers and Toyota fail to disclose before purchase.

Toyota provides multiple separate privacy policies, notices, and statements for vehicles, apps, and services that are difficult to locate and comprehend.

The Lane Tracing Assist (LTA) feature attempts to keep the vehicle centered in its lane using steering inputs, but owners report it bounces or sways back and forth, creating a fighting sensation with ...

Even with hands on the wheel, the Lane Tracing Assist system beeps after 5-10 seconds on straight roads, detecting insufficient driver input and requiring a jiggle to reset.

After the free trial year ends, the Drive Connect subscription service displays a persistent nag screen every time the vehicle starts, blocking access until dismissed.

The advanced rear seat reminder system, designed to alert if children or pets are left behind, triggers false alarms from moving objects inside the cabin or nearby outside the vehicle.

The safety assist system, including collision warnings, triggers frequent false alerts every 10 seconds during car washes due to environmental factors.

The Rear Cross-Traffic Alert (RCTA) and parking cameras falsely detect people or traffic from distant sources like roads 30 feet away.

The power rear liftgate occasionally beeps and refuses to close, requiring intervention.

The infotainment system's Bluetooth and phone pairing often fails, showing 'Nothing's connected' despite the phone being paired, and switches between multiple vehicles. Android Auto and wired connecti...

The infotainment interface feels outdated with low-resolution graphics, clunky navigation, unreliable voice input, and non-intuitive controls that distract drivers. Owners find it awkward and dangerou...

Both the key fob and Toyota app remote start functions are frustratingly unreliable, with the fob having very short range, the app logging out frequently and failing logins, and the system turning off...

Connecting a second phone or setting up profiles for multiple drivers is problematic, with the Toyota app allowing registration on only one phone at a time and CarPlay being difficult to configure rel...

The built-in wireless phone charging tray is weak and fails to charge phones reliably, especially through cases.

The optional built-in dashcam lacks Bluetooth connectivity and has extremely slow video transfer speeds that fail midway.

The redesigned center console blocks space for items like coolers between front seats and lacks practical storage like a change holder.

The power sliding doors automatically turn off if left open and require manual reset to reactivate.

Aftermarket wireless CarPlay adapters are laggy and annoying to use with the Sienna's system.

The rear entertainment system's TV streaming setup is cumbersome and a total pain to configure.

The Sienna's Data Communication Module (DCM) tracks precise vehicle location via GPS and cellular connectivity by default upon delivery, even on base models without opt-in. Owners report inability to ...

Even without opting into Connected Services, the vehicle sends data like mileage, driving behavior, and vehicle health to Toyota via DCM, which cannot be permanently disabled without physical modifica...

Toyota collects broad personal data via the vehicle, app, and services, including precise geolocation, biometric info, driving behavior, vehicle health, name, address, phone, and email. Data like driv...

Toyota shares or sells collected personal information, including sensitive data like geolocation and biometrics, to third parties for targeted advertising and marketing, without full commitments again...

Interior cameras monitor driver posture, facial activity, steering grip, seat belt, and enable facial recognition by storing facial scans linked to profiles. Vehicles and app also have microphones and...

Toyota exposed location data of over 2 million users for 10 years due to security lapses.

The Toyota Sienna's remote control capability relies on connected services through the Data Communication Module (DCM) for features like remote start and location tracking. Owners report that Toyota r...

The infotainment system is the central touchscreen interface for navigation, audio, and vehicle controls in the 2026 Toyota Sienna. Owners report it being glitchy at times, with occasional malfunction...

The Toyota Sienna's remote start via Toyota app requires a paid Remote Connect subscription after a 1-year trial on select trims. Key fob remote start availability post-trial unclear in docs but owner...

Drive Connect provides app-based features like remote lock/unlock, vehicle alerts, and in-car internet, but requires a subscription after the first year. Owners dislike the ongoing fees for hardware-e...

The built-in navigation system on higher trims like XLE uses Google Maps but requires a paid subscription after the first year for map updates. Owners must pay extra to keep navigation current.

Advanced Driver Support (ADS) and Facial Identification features require an ongoing subscription to access full benefits, despite the hardware being included.