What issues have been reported with the hybrid battery of the 2008 Chevy Tahoe?

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Jake trippett Feb 19, 2021

The 2008 Chevy Tahoe Hybrid may run into battery issues such as a dead battery or rapid drainage during its lifespan. If the case becomes cracked, a full replacement will be necessary. A leak could also occur, causing fluid to escape. Should the battery drain quickly or run out of power entirely, it will need to be fixed or replaced. Ultimately, the battery will reach a point of no return and require replacement every 50,000 to 60,000 miles. While this may come at a cost, investing in a new battery is essential to ensure your vehicle keeps running smoothly.

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Ephet May 15, 2020

Most hybrid high-voltage batteries commonly fail due to issues like memory or malfunctioning cells. When these batteries fail for such reasons, the efficiency of the vehicle decreases, measured in mpge. This decline occurs because the battery can no longer power the vehicle as effectively or for as long as it could initially. At times, a warning light regarding the hybrid battery or a similar component may illuminate, and the vehicle might lose its ability to operate solely on electric power or even as a hybrid with internal combustion engine assistance. In severe cases, the vehicle could become inoperable, though the regular 12-volt electronics will continue to function.
George Kennerup Jul 16, 2022

Hey, I own a 2008 Chevy Tahoe ltz 5.3 flex fuel. I used a meter to test it and found that I'm drawing 1.40 mA. Is that too high? After pulling some fuses, I noticed that the ones drawing power are "abs 2," "air bag batt," and "L/gate RELSE," each pulling around 25-30 mA. I'm seeking assistance - the only light on is the P parking assist light. There are no check engine lights or error codes appearing. Can anyone help me with this issue?

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