2015 Buick Lacrosse Electrical Parts

This table covers the alternators that charge the battery and run the electrical load. Typical signs include dim lights at idle, a battery lamp, or a growl from the charging pulley. Load-test the battery and inspect the belt and grounds — a bad ground mimics a failed alternator. Read more

2 Alternator / Generator parts for the 2015 Buick Lacrosse come from 2 brands — FVP and PURE ENERGY.

Part numbers include FVP 10232, among others listed above.

This table covers the Anti-Theft control modules. Read more

GM GENUINE supplies both parts for the 2015 Buick Lacrosse.

This group includes GM GENUINE 13523276 and GM GENUINE 13523275.

This table covers the batteries listed by group size and specification. Typical signs include slow cranking, a battery lamp, or a no-start after the vehicle sat overnight. Confirm group size and terminal layout in the notes. Clean the posts and the ground before condemning the battery. Read more

5 Battery parts are listed for the 2015 Buick Lacrosse, from LUCAS, DEKA, EXIDE and 2 other brands. LUCAS LBAGM001A carries the "Popular" badge.

The AGM (Extended Life) section lists 4 options from LUCAS, DEKA, EXIDE and 1 other brand — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. LUCAS LBAGM001A is listed in this group.

The Performance AGM (Extended Life + Increased Power) section lists 1 option from FULLRIVER — grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. FULLRIVER FT61047 is listed in this group.

This group includes LUCAS LBAGM001A, DEKA 9A47 and EXIDE MXH5L247 and the remaining parts above.

This table covers the positive and ground cables that run from the battery. Typical signs include a stretched or frayed cable, or a control that no longer reaches the end of its travel. Route the new cable through the same clips. A kinked cable binds and fails early. Read more

5 Battery Cable parts for the 2015 Buick Lacrosse come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and GM GENUINE. The "Popular" part is ACDELCO 2BC5.

Listed part numbers: ACDELCO 2BC5, GM GENUINE 20781417 and STANDARD MOTOR PRODUCTS A172T, plus the other parts above.

This table covers the Battery Cooling fans. Typical signs include overheating at idle, a fan that never comes on, or a blade that hits the shroud. Confirm the fan command and the relay before replacing the assembly. Read more

2 Battery Cooling Fan parts are listed for the 2015 Buick Lacrosse, from FOUR SEASONS and GPD.

Listed part numbers: FOUR SEASONS 76802 and GPD 2312074.

This table covers the Battery Current sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

3 Battery Current Sensor parts for the 2015 Buick Lacrosse come from 3 brands — GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS.

This group includes GM GENUINE 13505369, STANDARD MOTOR PRODUCTS SBC111 and WELLS 5S6706.

This table covers the trays the battery sits in. Read more

One part is listed for the 2015 Buick Lacrosse — TECHPRO GM2995119.

This table covers the Battery Vent tubes. Read more

This group shows a single part: GM GENUINE 22868234.

This table covers the Blind Spot Detection sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Blind Spot Detection Sensor parts for the 2015 Buick Lacrosse come from WELLS.

Listed part numbers: WELLS 5S16714 and WELLS 5S16716.

This table covers the body-control modules that run lighting, locks and wipers. Read more

This group shows a single part: GM GENUINE 13534184.

This table covers the brackets that mount the Body Control Module (BCM). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 22818730.

This table covers the resettable circuit breakers in this vehicle's electrical system. Read more

One part is listed for the 2015 Buick Lacrosse — GM GENUINE 19116527.

This table covers the Cruise Control Distance sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

2 Cruise Control Distance Sensor parts are listed for the 2015 Buick Lacrosse, from DORMAN and GM GENUINE.

Part numbers include DORMAN 601760 and GM GENUINE 13442495.

This table covers the engine-control modules that run fuel, spark and emissions. Read more

This group shows a single part: GM GENUINE 12653998.

This table covers the brackets that mount the Engine Control Module (ECM Computer). Typical signs include a cracked mount, a rattle, or a bracket that no longer holds alignment. Confirm position in the notes. Many brackets look alike and bolt to different corners. Read more

This group shows a single part: GM GENUINE 22859944.

This table covers the replacement fuses for this vehicle's fuse boxes. Typical signs include one circuit dead while its neighbor still works, or a fuse that blows again as soon as you replace it. Match amperage and fuse type. A repeat blow means a short — find it before the next fuse. Read more

11 Fuse parts are listed for the 2015 Buick Lacrosse, from LITTELFUSE, BUSSMANN and GM GENUINE. LITTELFUSE MIN15 carries the "Popular" badge.

The 10 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "10 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE LMIN10 is listed in this group.

In the 15 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "15 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN15.

In the 2 Amp grade, BUSSMANN and LITTELFUSE supply 2 parts: grouped under the catalog's "2 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM2.

In the 20 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "20 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE MIN20.

The 25 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE MIN25 is listed in this group.

The 30 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE JCAS30 is listed in this group.

The 300 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "300 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 13289598 is listed in this group.

In the 40 Amp grade, LITTELFUSE supplies 1 part: grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. A representative part number is LITTELFUSE JCAS40.

The 5 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "5 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE MIN5 is listed in this group.

The 50 Amp section lists 1 option from LITTELFUSE — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. LITTELFUSE JCAS50 is listed in this group.

This table covers the fuse blocks that hold this vehicle's fuses. Read more

3 Fuse Block parts for the 2015 Buick Lacrosse come from 2 brands — DORMAN and GM GENUINE.

Listed part numbers: DORMAN 956555, DORMAN 956430 and GM GENUINE 20815889.