Toyota SIENNA HYBRID electrical problems
13 complaint narratives mention electrical terms.
Key facts
476 owner complaints analyzed
8 distinct recall campaigns
17,826 mi median reported failure mileage
Scope: 2021 to 2026 model years. Data snapshot: . 49 complaints include usable failure mileage.
Electrical and battery issues evidence
13 of 476 complaints match this topic (2.7%). The keyword filter can include complaints that mention a transmission without reporting its failure. View matching rules.
Owner report 11740978 · 2026-05-30 (May 30, 2026)
SRS light has been showing up on the dashboard, off and on for 3 weeks. Diagnostic reader completed by the dealership states it is an airbag module malfunction of the 2nd row left passenger seat. The seat has never been removed, there have been zero accidents and no damage to the seat or wiring.
Owner-reported narrative. Look up ODI 11740978 at NHTSA ↗
Owner report 11750096 · 2026-07-13 (July 13, 2026)
FAILURE: Blind spot monitor module failed due to a corroded internal electrical connector. The failure disabled both the Blind Spot Monitor (BSM) and Rear Cross-Traffic Alert (RCTA). Both remain inoperative. The failed component has not been replaced and is available for inspection. SAFETY RISK: Two active safety systems are disabled. The vehicle no longer warns of vehicles in the blind spot during lane changes, and no longer warns of cross traffic when backing out of parking spaces or driveways. WARNING LAMPS: Yes. Multiple warning lamps illum…
Owner-reported narrative. Look up ODI 11750096 at NHTSA ↗
Owner report 11729260 · 2026-04-05 (April 5, 2026)
I am reporting a recurring safety-related defect involving driver-assistance and steering-wheel controls on my 2022 Toyota Sienna Limited, VIN [XXX] ry 8, 2026, I brought the vehicle to Parkway Toyota in [XXX] bec [XXX] tion” warning appeared and cruise control stopped working. The dealer diagnosed the issue as related to the 12V battery, replaced the battery, and advised that the condition was resolved. The same malfunction later recurred. I returned to Parkway Toyota on March 18-19, 2026 for the same problem. I reported that the issue had r…
Owner-reported narrative. Look up ODI 11729260 at NHTSA ↗
Owner report 11759229 · 2026-08-24 (August 24, 2026)
I own a 2022 Toyota Sienna with approximately 67,680 miles. The vehicle began displaying warnings for **Blind Spot Monitor Malfunction, Rear Cross Traffic Alert Malfunction, and Parking Support Brake Unavailable**. A Toyota dealer diagnosed the problem and found significant corrosion at **both rear blind spot monitor connections**. The wiring harness connector pins had corroded/broken off inside the blind spot monitor sensors. The dealer recommends replacing both blind spot monitors and the rear bumper wiring harness and recalibrating the syst…
Owner-reported narrative. Look up ODI 11759229 at NHTSA ↗
Owner report 11503015 · 2023-01-22 (January 22, 2023)
No system is failed in our sienna. Only safety problem we have is the rear view mirror completely block off when kid use the entertainment system. When I talk to the deanship, they told me they can't add any rear view camera due to the electrical harness problem. Not sure if anything can be done, please let me know what you guys think.
Owner-reported narrative. Look up ODI 11503015 at NHTSA ↗