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ADAC Found That 44.9% of Failures Arise from the 12V Battery, the Achilles’ Heel of Any Brand. To Make the Right Decision, Check Recalls by Chassis, Keep Software Updates Current, and Care for the Car’s Electrical System.
Electrical failure is a problem that immobilizes any car, and several brands have already promoted recalls. Many people look for a “brand ranking,” but in Brazil, there is currently no official list that consolidates the index of electrical failures by manufacturer with a public methodology. What exists are reliable databases that help to understand the scenario: statistics on roadside assistance, independent quality and reliability studies, and recall campaigns affecting electrical and electronic systems.
In practice, the main villain remains the 12V battery. The most robust field statistic is from ADAC in Germany, which compiles millions of real assistances. In 2024, 44.9% of all occurrences of electrical failures were caused by weak or discharged onboard batteries.
This places the battery at the top of the failures that cause immobilization, ahead of engine electronics and fuel problems. The data is valuable for Brazil because it reflects heavy urban use, short trips, and cars loaded with electronic modules, a situation similar to that of large Brazilian cities. Practical Conclusion: if the battery is undersized, old, or poorly charged, the chance of electrical failure skyrockets, regardless of the brand.
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Electric and Hybrid Vehicles Are Not Immune to Failures
Another important point is that electric and hybrid vehicles also depend on a 12V auxiliary battery to power modules and systems, which is why they are not immune. In the Pannenhilfebilanz released in March 2025, ADAC reinforces the historical volume of assistances and the central role of the battery in immobilizations. For the owner, this translates into simple prevention routines, periodic load testing, attention to parasitic consumption, and checking terminals and ground connections.
In the J.D. Power IQS 2025 (initial quality study in the U.S.), the infotainment category continues to be the most problematic in the industry, particularly due to touchscreens and functions that migrate from physical buttons to software. For the reader, this does not necessarily mean immobilization failures, but it helps to understand why electrical and electronic failures are the most frequent in the first months of use.
Recent Electrical Recalls in Brazil: What Affected Popular Models
Although a “brand index” is not available in a public ranking, recalls provide concrete clues by model and lot. Below are some recalls with a direct impact on the electrical or electronic system, announced between 2024 and 2025:
• Jeep Compass 4xe (2022–2023), Brazil, Sept. 2024: Risk of overheating in the charging cable connector due to absence or low torque of the securing nut, with a possibility of fire. The official campaign was published by Stellantis for the Brazilian market.
• Chevrolet Blazer EV (2024–2025), Brazil, July 2025: Risk of damage to the parking brake harness, with a possibility of inadvertent activation or loss of function. The official recall page of the brand in Brazil provides details of the repair.
• Fiat Titano (2024–2025), Brazil, May 2025: Installation of protection on the harness for the front door sills and possible repair to prevent damage to the electrical beam. The recall affects thousands of units and starts servicing in June 2025.
• Fiat Line 2024–2025 (Strada, Mobi, Argo, Fiorino, among others), Brazil, May–June 2025: Recalls for electronic modules with a risk of engine shutdown while in motion in certain units, due to water infiltration in the ECM. Stellantis and press vehicles detailed models, chassis ranges, and service timelines.
These examples show why it is more honest to talk about risks by component and model, rather than absolute truths by brand. The exposure varies according to design, lot, usage, and maintenance.
How to Check Recalls and Protect Your Car
In Brazil, the official route is the Senatran Services Portal. The process is simple: log in, access the “Consultation” block, choose “Recall,” and provide the chassis to check for pending issues. The tutorial from the system itself explains the content of the query, including recall status and vehicle registration data. Additionally, manufacturers maintain specific pages for searching by VIN. Checking and addressing recalls is free and essential to avoid electrical failures or safety risks.
If you prefer to consult directly with the brand, there are recall sections on websites such as Jeep, Fiat, and Volkswagen, with repair scheduling through authorized networks. Keep the receipts in the vehicle’s history, as this enhances the value of the used car and reduces the risk of purchasing a vehicle with pending mandatory repairs.
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