2019 Buick Lacrosse Electrical Parts

This table covers the Active Noise Cancellation modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2019 Buick Lacrosse — GM GENUINE 85525311.

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

6 Alternator / Generator parts for the 2019 Buick Lacrosse come from 6 brands — GM GENUINE, WAI GLOBAL, FAMOUS BRAND and 3 other brands. The "Popular" part is GM GENUINE 13553838.

The New section lists 2 options from GM GENUINE and WAI GLOBAL — brand-new units rather than rebuilt ones. GM GENUINE 13553838 is listed in this group.

The Remanufactured section lists 4 options from FAMOUS BRAND, PURE ENERGY, REMY and 1 other brand — factory-rebuilt units with new wear components. FAMOUS BRAND 10350A is listed in this group.

Listed part numbers: GM GENUINE 13553838, WAI GLOBAL 44016N and FAMOUS BRAND 10350A, plus the other parts above.

This table covers the pulleys on the alternator shaft. Typical signs include a growl or chirp that follows engine speed, or a pulley that will not spin freely by hand. Spin each pulley with the belt off. Roughness or play means replace it with the belt. Read more

3 Alternator / Generator Pulley parts are listed for the 2019 Buick Lacrosse, from CONTINENTAL, DORMAN and LITENS.

This group includes CONTINENTAL 49968, DORMAN 300424 and LITENS 920053A.

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

One part is listed for the 2019 Buick Lacrosse — GM GENUINE 13523276.

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 2019 Buick Lacrosse, from ACDELCO, FVP, P1MAX and 1 other brand. FVP P94RAGM carries the "Popular" badge.

The AGM (Extended Life) section lists 4 options from ACDELCO, FVP and P1MAX — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. FVP P94RAGM 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 FT85094R is listed in this group.

This group includes FVP P94RAGM, ACDELCO 94RAGMHR and ACDELCO 94RAGM and the remaining parts above.

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 2019 Buick Lacrosse come from 2 brands — STANDARD MOTOR PRODUCTS and HELLA.

Listed part numbers: HELLA 012767491, STANDARD MOTOR PRODUCTS SBC111 and STANDARD MOTOR PRODUCTS BSC122.

This table covers the clamps and brackets that secure the battery. Read more

This group shows a single part: DORMAN 390030.

This table covers the Battery Vent tubes. Read more

This group shows a single part: GM GENUINE 85665279.

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

This group shows a single part: GM GENUINE 13534189.

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 84066548.

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

STANDARD MOTOR PRODUCTS supplies the 3 Circuit Breaker parts for the 2019 Buick Lacrosse.

This group includes STANDARD MOTOR PRODUCTS FH58, STANDARD MOTOR PRODUCTS FH59 and STANDARD MOTOR PRODUCTS FH57.

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

This group shows a single part: GM GENUINE 12725663.

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 26218498.

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

24 Fuse parts are listed for the 2019 Buick Lacrosse, from BUSSMANN and GM GENUINE. BUSSMANN ATM2 carries the "Popular" badge.

The 100 Amp section lists 2 options from BUSSMANN and GM GENUINE — grouped under the catalog's "100 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMI100 is listed in this group.

In the 15 Amp grade, BUSSMANN 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 BUSSMANN FMS15.

In the 150 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "150 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84070922.

In the 2 Amp grade, BUSSMANN supplies 1 part: 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, BUSSMANN 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 BUSSMANN FMS20.

The 225 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "225 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG225 is listed in this group.

The 25 Amp section lists 2 options from BUSSMANN — grouped under the catalog's "25 Amp" designation — the notes column spells out what sets them apart. BUSSMANN MAX25 is listed in this group.

The 250 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "250 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84116255 is listed in this group.

The 3 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "3 Amp" designation — the notes column spells out what sets them apart. BUSSMANN ATM3LP is listed in this group.

The 30 Amp section lists 1 option from GM GENUINE — grouped under the catalog's "30 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 22917202 is listed in this group.

The 300 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "300 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG300 is listed in this group.

In the 350 Amp grade, GM GENUINE supplies 1 part: grouped under the catalog's "350 Amp" designation — the notes column spells out what sets them apart. A representative part number is GM GENUINE 84116257.

In the 4 Amp grade, BUSSMANN supplies 2 parts: grouped under the catalog's "4 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATM4LP.

In the 40 Amp grade, BUSSMANN and GM GENUINE supply 2 parts: grouped under the catalog's "40 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS40.

The 450 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "450 Amp" designation — the notes column spells out what sets them apart. BUSSMANN AMG450 is listed in this group.

The 50 Amp section lists 1 option from BUSSMANN — grouped under the catalog's "50 Amp" designation — the notes column spells out what sets them apart. BUSSMANN FMS50 is listed in this group.

In the 60 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "60 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN FMS60.

In the 7.5 Amp grade, BUSSMANN supplies 1 part: grouped under the catalog's "7.5 Amp" designation — the notes column spells out what sets them apart. A representative part number is BUSSMANN ATC712.

The 70 Amp section lists 2 options from GM GENUINE — grouped under the catalog's "70 Amp" designation — the notes column spells out what sets them apart. GM GENUINE 84070937 is listed in this group.

This table covers the HID Lighting ballasts. Read more

This group shows a single part: DORMAN 601659.

This table covers the horns mounted in the front of the vehicle. Read more

14 Horn parts are listed for the 2019 Buick Lacrosse, from FIAMM, GM GENUINE and DORMAN. FIAMM 72112 carries the "Popular" badge.

In the Accessory Replacement grade, FIAMM supplies 6 parts: grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. A representative part number is FIAMM 72112.

The Standard Replacement section lists 8 options from FIAMM, GM GENUINE and DORMAN — built to original-equipment specification. FIAMM 7200223 is listed in this group.

This table covers the receivers that pick up the key-fob unlock signal. Read more

2 Keyless Entry Module / Receiver parts for the 2019 Buick Lacrosse come from GM GENUINE.

Part numbers include GM GENUINE 13540045 and GM GENUINE 13523241.

This table covers the key fobs that lock, unlock and start the vehicle. Read more

3 Keyless Entry Remote parts for the 2019 Buick Lacrosse come from 2 brands — GM GENUINE and DORMAN.

Part numbers include DORMAN 99751ST, GM GENUINE 13508414 and GM GENUINE 13532388.

This table covers the Lane Departure Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

3 Lane Departure Camera / Module parts for the 2019 Buick Lacrosse come from 2 brands — DORMAN and WELLS.

Listed part numbers: DORMAN 601992, DORMAN 601993 and WELLS 8A1022.

This table covers the modules that control the exterior lighting. Read more

2 Lighting Control Module (LCM) parts for the 2019 Buick Lacrosse come from GM GENUINE.

Part numbers include GM GENUINE 26700023 and GM GENUINE 26667674.

This table covers the Park Assist (PAS) Camera modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

One part is listed for the 2019 Buick Lacrosse — GM GENUINE 84169042.

This table covers the ultrasonic park-aid sensors in the bumper. 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

9 Parking Aid Sensor parts for the 2019 Buick Lacrosse come from 5 brands — GM GENUINE, STANDARD MOTOR PRODUCTS, DORMAN and 2 other brands. The "Popular" part is BOSCH 0263043553.

Part numbers include BOSCH 0263043553, STANDARD MOTOR PRODUCTS PPS46 and DORMAN 684048, among others listed above.

This table covers the totally-integrated power modules that distribute body electrical power. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

GM GENUINE supplies the 3 Power Supply Module (TIPM) parts for the 2019 Buick Lacrosse.

This group includes GM GENUINE 13438997, GM GENUINE 13510484 and GM GENUINE 26309062.

This table covers the Serial Data Gateway modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 13599318.

This table covers the Side Object Sensor modules. Typical signs include a cluster of unrelated faults, a no-communication code, or a module that will not sleep. Confirm power, ground and programming compatibility in the notes. Modules are rarely plug-and-play across years. Read more

This group shows a single part: GM GENUINE 84428904.

This table covers the speed sensors on the transmission, transfer case or ABS ring. Typical signs include a dead speedometer, harsh transmission shifts, or a code for vehicle speed. Inspect the tone wheel and the connector before replacing the sensor. Read more

5 Speed Sensor parts are listed for the 2019 Buick Lacrosse, from GM GENUINE, STANDARD MOTOR PRODUCTS and DELPHI. GM GENUINE 24295280 carries the "Popular" badge.

Part numbers include GM GENUINE 24295280, DELPHI SS12406 and GM GENUINE 24298199, among others listed above.

This table covers the Speed Sensor Reluctor rings. Read more

GM GENUINE supplies both parts for the 2019 Buick Lacrosse.

Part numbers include GM GENUINE 24230744 and GM GENUINE 24061032.

This table covers the starter motors that crank the engine. Typical signs include no motion, a squeal, or a motor that only runs on one speed. Confirm power, ground and the control module before replacing the motor. Read more

7 Starter Motor parts for the 2019 Buick Lacrosse come from 7 brands — GM GENUINE, TYC, WAI GLOBAL and 4 other brands. The "Popular" part is GM GENUINE 12667973.

The New section: 3 options from GM GENUINE, TYC and WAI GLOBAL. GM GENUINE 12667973 is listed in this group.

The Remanufactured section: 4 options from FVP, PURE ENERGY, REMY and 1 other brand. FVP 12457 is listed in this group.

Listed part numbers: GM GENUINE 12667973, TYC 116349 and WAI GLOBAL 16349N, plus the other parts above.

This table covers the Starter Motor Heat shields. Typical signs include a bent shield rubbing a rotor, or rust-through that leaves the backing open. A rubbing shield will eat a new rotor. Straighten or replace it before the wheel goes back on. Read more

One part is listed for the 2019 Buick Lacrosse — GM GENUINE 12654121.