Table 1 shows one common electrical system related problems of the 2020 Lexus ES.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
• frequent battery replacements: my vehicle is now on its third battery within a five-year lifespan. The previous owner replaced the battery two years ago when the vehicle was only two years old, and I recently had to replace it again. • unacceptable battery lifespan: no vehicle should require a new battery every two years under normal conditions. This strongly suggests an underlying defect in the battery, charging system, or electrical components. • lack of manufacturer remedy: despite dozens, if not hundreds, of complaints from other 2020 Lexus Es 350 owners online describing the exact same issue, Lexus has not issued a recall or service bulletin to investigate or resolve the problem. • misleading battery warranty: Lexus advertises its 84-month battery warranty, but this is misleading. In reality, it only provides a full replacement for the first 24 months, while the remaining coverage period is prorated, meaning owners are still required to pay a portion of the cost after just two years. This is deceptive marketing that fails to reflect the true coverage provided. • potential safety hazard: frequent battery failures could leave drivers stranded unexpectedly, which poses a serious safety risk in various situations (e. G. , extreme weather, remote locations, or high-traffic areas). • Lexus’ partial acknowledgment of the issue: this battery issue appears to be somewhat acknowledged by Lexus because they replaced the original battery with a much larger cold cranking amps (cca) version than what comes standard in the Es 350. The factory-installed battery is rated at 640 cca, but the replacement Lexus provides is 770 cca. After researching, I found that this larger battery is typically used in the Lexus LS model, which is a much larger, more powerful vehicle requiring a bigger battery. Despite this upgrade, the replacement battery still fails within two years, indicating that there is an underlying issue causing premature battery failure beyond just battery capacity.