Most likely clogged heater core. You could try to flush it and may come back to life.
SOURCE: remote for buick Lacross doesn't work, battery new. Can't figure how to reset it.
have to be reset by dealer usually 20 to 35 dollars to do so
SOURCE: The air conditioning in my 2008 Buick LaCrosse
Need clarification...
Does the compressor run steady, cycle on and off continually or even come on at all? If cycles on-off then attach charge manifold/gauge set and bring freon up to proper level. If does not come on at all, then start engine, turn a/c on, remove two-wire plug from low pressure cut-out switch mounted on accumulator. Jumper the wires at plug and see if compressor comes on. If so, bring freon up to proper level.
If charge level was low then check for system leak after system charge with an electronic leak detector if available.
If compressor runs but doesn't cool vehicle then with engine running and a/c on feel (carefully) the lines. High side line should be hot (be careful) and low side line should be cold. If these are both true then it's possible non-cooling condition is due to air temp diverter door not operating or heater valve not shutting off (if so equipped). If low side not cold it could be a plugged orifice tube. If high side not hot it could be bad rings on compressor. Both conditions can be diagnosed with a/c manifold gauge set by noting the pressures.
For safety... if not familiar with differences between hi and low side components or with charge equipment then please take vehicle to qualified person for service.
SOURCE: My remote won't start my 2005 Buick LaCross. I
Both my remotes no longer work. I will be ordering new ones off Ebay and having my dealer program them. New ones from Buick are very pricey.
SOURCE: little heat in car
try changing antifreeze you may have whats called vapor locked wich prevents coolant from circulating
SOURCE: where is the trunk light on/off switch located on a 2008 buick lacrosse
In the newer Chevy Cobalts the trunk release button is usually located to the left of the steering wheel instead of the glove box.-----------------------------------------------------------------------------
Car cable & OBD Connector
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