Battery replacement
- Thread starter ycharlie
- Start date
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umbertob
Full Access Member
Turn off ignition, wait at least 2 minutes before touching any battery post. Loosen and remove battery bracket, remove battery vent hose, disconnect negative lead, disconnect positive lead, carefully lift and remove old battery. Install new battery making sure not to accidentally pinch the vent hose or other wiring under the battery as you drop it onto the tray, connect positive and negative leads in that order, reattach and tighten bracket, connect vent hose... That's about it as far as the physical part. You may need to reenter date / time as well as reset the one-shot window and sunroof feature following a battery disconnect. Every other setting should be preserved if the swap takes a short amount of time.
Shop manual says you should also reset / recalibrate the battery monitoring system (BMS) module that's built into the LR4 whenever you replace an old/discharged battery with a new one. That's easily done with a diagnostic tool... You do have your IIDTool handy, right?
If not, a dealer can run that routine for you... For a fee.
What type of Optima battery fits our cars? Didn't think they made a compatible size.
Shop manual says you should also reset / recalibrate the battery monitoring system (BMS) module that's built into the LR4 whenever you replace an old/discharged battery with a new one. That's easily done with a diagnostic tool... You do have your IIDTool handy, right?
If not, a dealer can run that routine for you... For a fee. What type of Optima battery fits our cars? Didn't think they made a compatible size.
Last edited:
Thanks for the prompt response as usual, umbertob. I have a spare Optima red top that seems like it fits. I am not going to swap it because it's been sitting on the garage floor since I purchased it 3 years ago. 
I'll have to get it charged if I do decide to use it. Made an appointment at the dealership for service and battery swap this Friday so we'll see.
Off topic. Our warranty is 35k/5 years right? Does it mean which ever comes first or later?
I'll have to get it charged if I do decide to use it. Made an appointment at the dealership for service and battery swap this Friday so we'll see.Off topic. Our warranty is 35k/5 years right? Does it mean which ever comes first or later?
Turn off ignition, wait at least 2 minutes before touching any battery post. Loosen and remove battery bracket, remove battery vent hose, disconnect negative lead, disconnect positive lead, carefully lift and remove old battery. Install new battery making sure not to accidentally pinch the vent hose or other wiring under the battery as you drop it onto the tray, connect positive and negative leads in that order, reattach and tighten bracket, connect vent hose... That's about it as far as the physical part. You may need to reenter date / time as well as reset the one-shot window and sunroof feature following a battery disconnect. Every other setting should be preserved if the swap takes a short amount of time.
Shop manual says you should also reset / recalibrate the battery monitoring system (BMS) module that's built into the LR4 whenever you replace an old/discharged battery with a new one. That's easily done with a diagnostic tool... You do have your IIDTool handy, right?
What type of Optima battery fits our cars? Didn't think they made a compatible size.
umbertob
Full Access Member
Factory warranty is 4 years or 50,000 miles, whichever occurs first. Battery is covered, but if you have a MY2010 you may be out of luck, regardless of your mileage, since the 4 years are probably up.
umbertob
Full Access Member
Depends on the extended warranty. Battery may be considered "wear and tear", so probably not covered, but read the contract as some exclusionary policies could include it.
umbertob
Full Access Member
You sure it's the battery and not a bad starter giving you grief? The jump starter I use (a Clore Jump-N-Carry unit) could revive the most dead of dead batteries without breaking a sweat.
I called AAA and they used a jumper box as well. It worked just fine. My box was definitely charged full overnight and had successfully jumped cars in the past. Weird.
eljefe
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you could have a small cranking amp battery box that you are trying to use to jump your LR4. AAA probably had a beefy unit.
