2026 Toyota Camry Hybrid XSE, front-wheel drive. Highway fuel economy suddenly dropped from approximately forty-five to forty-six miles per gallon to thirty-five to thirty-six miles per gallon within the past week, around October tenth. This is roughly twenty percent below the EPA highway rating of forty-five for this trim. Driving conditions unchanged: gentle highway speeds around sixty-five to seventy, temperatures sixty-three to seventy degrees, no roof rack or accessories, original equipment tires at thirty-nine PSI which is at or above the door placard spec. No warning lights, no check engine light, no pulling to one side, no burning smell, no brake drag symptoms. No service visits or recall work performed in recent weeks. Ruled out weather, tires, roof accessories, and driving style. Possible causes include a software update to the hybrid control module that may be preventing electric assist at highway speeds, or a mechanical issue such as a dragging brake caliper. Requesting investigation into hybrid system software changes and hybrid powertrain behavior.
2026 Toyota Camry Hybrid: check engine light
5 of the 145 complaints about the 2026 Toyota Camry Hybrid describe check engine light.
- owner complaints
- 5
- of this car's complaints
- 3%
- recalls
- 0
Check engine light by model year
What owners say
While driving my 2026 Toyota Camry LE Hybrid at approximately 10 mph in a parking lot, the vehicle accelerated on its own without any input from me. I applied hard braking to bring the vehicle under control. No collision occurred. The specific component or system that failed is UNKNOWN — I suspect the speed control, powertrain, or electrical throttle system, but this has not yet been diagnosed. The vehicle is available for inspection upon request. My safety and the safety of others were put at risk because the vehicle accelerated unexpectedly at low speed in a parking lot, an environment with pedestrians, parked vehicles, and other close-proximity hazards. I had to brake hard to stop it, which could have resulted in a collision with another vehicle, a pedestrian, or a fixed object had I not been able to react in time. The problem has not yet been reproduced or confirmed by a dealer. I reported the incident to Toyota the day after it occurred; Toyota opened case number 260811002989 and scheduled a diagnostic inspection appointment. As of this filing, that inspection has not yet taken place. There were no warning lamps, messages, or other symptoms before or during the incident. The dashboard showed no malfunction indicators at any point.
I had just bought the car from the Dealer and was to drive it back home. I got about 30 miles from the Dealership and the check engine light came on. It stated malfunction in the awd system so now on two wheel drive then it stated start control malfunction and finally hybrid system malfunction. I returned it to the dealership and they said that the first diagnostic stated it was throwing high voltage. Looking on line when I got home I noticed the recall of many Toyota camrys for the loose bolt causing this issue and there is yet to be a fix for it. The manufacturer should take all those cars back so they cannot be sold and cause a risk till they can fix it. It makes a dealership look bad and puts innocent people at risk if they are not aware of the issue.
Saturday may 23 at night my car started showing a message that states “Braking Power Low Stop in a Safe Place See Owner's Manual” I took it to Toyota on Tuesday may 2026 they said it was fine and nothing was wrong even after I said that message kept appearing at least five times each time I was driving the vehicle since Saturday. After they checked it the problem got worse and now it appears 95% of the time I’m driving. Not just that but on may 27 at approximately 9:10 pm my check engine turned on and also system lady took turned on and secondary collision break malfunction turned on. Along side many other warning comes and go but the main ones that stay are the check engine and the braking power low one. I am worried because this all started happening whenever I accelerated even just a little bit and it could end up causing accidents.
The contact owns a 2026 Toyota Camry Hybrid. The contact stated that while driving approximately 65 MPH, the vehicle suddenly decelerated, with an audible beeping alarm activated and the check engine warning light illuminated. The message "Hybrid System Malfunction" was displayed. The vehicle was immediately driven to the local dealer. The cause of the failure was not yet determined. The contact was informed by the mechanic that the failure was possibly related to the federal safety agency Campaign Number: 25V869000 (HYBRID PROPULSION SYSTEM); however, the VIN was not included in the recall. The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 5,300.
Service bulletins that may apply
- Flash reprogramming allows the Electronic Control Unit (ECU) software to be updated without replacing the...
- MIL ON condition with Diagnostic Trouble Code (DTC) P0A1B94 (Drive Motor A Control Module Unexpected...
- MIL on condition with DTC P0A1B94(Drive Motor "A" Control Module Unexpected Operation) stored
Related recalls
No recalls on record for this model year.
Questions about the 2026 Toyota Camry Hybrid check engine light
Is check engine light a common problem on the 2026 Toyota Camry Hybrid?
5 of 145 owner complaints about the 2026 Toyota Camry Hybrid (3%) mention check engine light. The model year with the most reports is 2007.
Is there a recall or service bulletin for this on the 2026 Toyota Camry Hybrid?
There are 0 recalls and 3 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 2026 Toyota Camry Hybrid
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