Buick · 2012–2016 (US)
Buick LaCrosse eAssist battery replacement
Buick LaCrosse eAssist battery diagnosis and replacement across the Phoenix metro. eAssist is a mild hybrid on a small 115V lithium pack — far smaller and cheaper than a full hybrid pack.
Buick LaCrosse eAssist hybrid battery at a glance
- System
- eAssist mild hybrid — assists the engine, never drives the car alone
- Battery type
- Lithium-ion
- Pack voltage
- 115V nominal
- Repair route
- Replaced as a complete assembly. Lithium packs are not rebuilt at module level
- Installation
- Included at our shop in the Phoenix metro; mobile install adds $250
- Before ordering parts
- Battery chemistry and part numbers changed within some model years. We confirm against your VIN before quoting or ordering parts.
Symptoms LaCrosse eAssist owners report
- Auto stop-start no longer working, or working erratically.
- The engine restarting roughly at lights where it used to be smooth.
- A modest but steady drop in city fuel economy.
- A battery or charging-system message on the dash.
- 12V faults mimicking eAssist problems — tested first, always.
Prices and fitment for the Buick LaCrosse eAssist
Buick LaCrosse eAssist hybrid battery questions
Is eAssist a real hybrid?
Why was I quoted so much for an eAssist battery?
Price your Buick LaCrosse eAssist
Packs and modules, with the warranty on each.
1Your make
2Your model
3What you need
We confirm the exact pack from your VIN before ordering.
Source: /vehicles/buick-lacrosse-eassist
Questions about your Buick LaCrosse eAssist?
Include the model year and what the car is doing.
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Not sure what your hybrid needs? We'll work it out with you.
We come to you, test the pack, the 12V and the cooling, and you get a written quote before anything is decided. No obligation.