The Tesla fashions S and Y are now not advisable by client reviews for causes of reliability

Brand new Tesla Model S cars sit outside a Tesla showroom on August 2, 2017 in Corte Madera, California. Tesla will post a profit for the second quarter after the closing bell today.

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Tesla's sedan Model S and crossover SUV Model Y are no longer "recommended" by Consumer Reports due to a decline in their reliability, the influential rating organization said on Thursday.

Jake Fisher, senior director of auto tests at Consumer Reports, said ratings of Tesla electric cars declined due to problems with the air suspension on the Model S and controls for the main computer and touchscreen, and issues with the body and paintwork of the Model Y. .

In 2015 consumer reports ranked the Model S as the best-rated vehicle of all time. Well, Fisher said, "We're seeing a myriad of problems with this car. It fluctuates throughout its life cycle," as Tesla consistently updated the Model S it was introduced in 2012.

Typically, older models are more reliable as companies address issues as the vehicles age. However, Tesla continued to update the cars with no changes to their exterior, including wireless or remote-controlled models. Software updates – an emerging trend in the auto industry led by Tesla.

The Model 3 electric sedan is now the only Tesla vehicle that Consumer Reports recommends to consumers.

Overall, Tesla took second to last place in the reliability study. Due to the problems identified in the Model S and Model Y, which went on sale earlier this year, it was two places less than a year ago. Model Y has "a reliability that is far below average," according to the publication.

In a recent widespread incident, the glass roof blew off an owner's brand new Tesla Model Y.

Tesla Model S Dual Motor fully electric sedan exhibited at Brussels Expo on January 9, 2020 in Brussels, Belgium.

Sjoerd van der Wal | Getty Images

Many of the issues identified in consumer reports are ongoing for Tesla. The company announced to owners of older Model S and X vehicles that Tesla is getting some refunds for repairs if the owner previously had to pay out of pocket to fix a problem in their main computers. This problem manifested itself in a blank touchscreen, and drivers lost access to temperature controls, reversing cameras, and other glitches. This was related to memory device failures in the computer storing data from the vehicle.

After Tesla sent this notice to the owners, the National Highway Traffic Safety Administration expanded a safety investigation to include issues with the main computers in Model S and X vehicles manufactured from 2012 to early 2018. Depending on the results of the technical analysis, the federal investigation was conducted that could lead to a mandatory recall beyond Tesla's warranty adjustment. According to NHTSA documents, approximately 159,000 vehicles may be affected.

Of the 26 brands featured in Consumer Reports' reliability survey, Japanese automakers performed best.

For the first time, the Japanese brand Mazda was high on the charity's list of trustworthiness. In the past, this top position was held by Toyota and Lexus, which were in second and third place. Buick, Honda and Hyundai were considered "more reliable" than most other brands. Ford Motor's Lincoln brand, which was down eleven places from the previous year, came last behind Tesla in the study.

The survey, which covers the 2000-2020 model years, is based on data collected from owners of more than 300,000 vehicles. The nonprofit then assigns a predicted reliability score for new vehicles to various nameplates based on the number of problems reported and other actions.

The reliability rating is a key element in the overall assessment of a vehicle through consumer reports and whether or not it is "recommended" to consumers. The total score also includes road test performance, the results of the owner satisfaction survey on whether a vehicle is equipped with critical safety systems, and crash test results, if any.

Here are the reviews:

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