# Service bulletin SB\-11\-031

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10041670
- Published by NHTSA: 2011\-10\-25
- Manufacturer's number: SB\-11\-031
- Manufacturer's date: 2011\-10\-15
- NHTSA component: EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM:12V/24V/48V BATTERY

## NHTSA's summary

ACURA: AFTER VEHICLE PARKED FOR A TIME, A/C BLOWS WARM AIR OR BATTERY DIES OUT OR BOTH. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Electrical system, Equipment and accessories, Heating and air conditioning, 12\-volt battery

## Vehicles listed

- 2007 to 2011 ACURA MDX

## Other bulletins for the same vehicles and component

- [SB\-08\-057](/bulletins/10198910.md), 2021-07-06, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. HandsFreeLink \(HFL\) Doesn?t Work, or Battery Is Too Low to Start the Engine: The HandsFreeLink \(HFL\) system doesn?t work, and/or the battery sometimes won?t start the vehicle.
- [B\-08\-057](/bulletins/10191130.md), 2021-04-30, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. SYMPTOM The HandsFreeLink \(HFL\) system doesn’t work, and/or the battery sometimes won’t start the vehicle. PROBABLE CAUSE The HFL control unit has an internal problem, which creates a parasitic current draw of 250 mA CORRECTIVE ACTION Do the REPAIR PROCEDURE, which includes a diagnosis, and if necessary, replace the HFL control unit.
- [B08\-057](/bulletins/10099406.md), 2017-05-17, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM:SOFTWARE. SERVICE BULLETIN \- HANDSFREELINK \(HFL\) DOESN’T WORK, OR BATTERY IS TOO LOW TO START THE ENGINE
- [PU\-2010\-11](/bulletins/10056166.md), 2014-09-23, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY. ACURA: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. A MESSAGE, BEING SENT BY BATTERY SENSOR SYSTEM, SHOWS BATTERY IS IN LOW STATE OF CHARGE AND NEW ENHANCED SOFTWARE IS TO IMPROVE THE ACCURACY OF MESSAGE SENDING. MODEL 2010\-2011 MDX. \*PE

JSON: [/v1/bulletins/10041670](/v1/bulletins/10041670)

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