2009 Buick Lucerne 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

16 Alternator / Generator parts are listed for the 2009 Buick Lucerne, from GM GENUINE, ACDELCO, FVP and 7 other brands. GM GENUINE 19433417 carries the "Popular" badge.

In the New grade, GM GENUINE, WAI GLOBAL and TYC supply 4 parts: brand-new units rather than rebuilt ones. A representative part number is GM GENUINE 19433417.

In the Remanufactured grade, ACDELCO, FVP, PURE ENERGY and 4 other brands supply 12 parts: factory-rebuilt units with new wear components. A representative part number is ACDELCO 3342998.

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 for the 2009 Buick Lucerne come from 3 brands — CONTINENTAL, DAYCO and LITENS.

Listed part numbers: CONTINENTAL 49921, DAYCO 892006 and LITENS 920893A.

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

This group shows a single part: GM GENUINE 22761920.

This table covers the Automatic Headlamp 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 Automatic Headlamp Sensor parts for the 2009 Buick Lucerne come from 2 brands — GM GENUINE and STANDARD MOTOR PRODUCTS. Every part fits both the 3.9L V6 and the 4.6L V8.

Part numbers include GM GENUINE 13498957, GM GENUINE 13498958 and STANDARD MOTOR PRODUCTS EFL172.

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

8 Battery parts for the 2009 Buick Lucerne come from 8 brands — DEKA, FVP, ACDELCO and 5 other brands. The "Popular" part is DEKA 9A94R. Every part fits both the 3.9L V6 and the 4.6L V8.

In the AGM (Extended Life) grade, DEKA, FVP, ACDELCO and 4 other brands supply 7 parts: grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. A representative part number is DEKA 9A94R.

In the Performance AGM (Extended Life + Increased Power) grade, FULLRIVER supplies 1 part: grouped under the catalog's "Performance AGM (Extended Life + Increased Power)" designation — the notes column spells out what sets them apart. A representative part number is FULLRIVER FT85094R.

This group includes DEKA 9A94R, FVP P94RAGM 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 are listed for the 2009 Buick Lucerne, from GM GENUINE, STANDARD MOTOR PRODUCTS and WELLS. All of them fit every engine offered in the 2009 Lucerne.

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

This table covers the terminals and clamps that connect cables to the battery posts. Read more

This group shows a single part: GM GENUINE PT220.

This table covers the Battery Terminal Bolt nuts. Read more

One part is listed for the 2009 Buick Lucerne — GM GENUINE 25650966.

This table covers the Battery Vent tubes. Read more

One part is listed for the 2009 Buick Lucerne — GM GENUINE 19420172.

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

3 Body Control Module (BCM) parts are listed for the 2009 Buick Lucerne, from GM GENUINE and DORMAN. All of them fit every engine offered in the 2009 Lucerne.

Part numbers include DORMAN 502001, GM GENUINE 84922494 and GM GENUINE 22860591.

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

This group shows a single part: BUSSMANN CB22125.

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

GM GENUINE supplies the 3 Engine Control Module (ECM Computer) parts for the 2009 Buick Lucerne.

This group includes GM GENUINE 216140, GM GENUINE 19421504 and GM GENUINE 12678512.

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

28 Fuse parts for the 2009 Buick Lucerne come from 2 brands — BUSSMANN and LITTELFUSE. The "Popular" part is BUSSMANN ATM10. 10 Amp, 15 Amp, 2 Amp, 20 Amp, 25 Amp, 30 Amp, 40 Amp, 5 Amp, 50 Amp, 60 Amp and 7.5 Amp are all represented, and 30 Amp alone accounts for 5 parts.

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

11 Horn parts for the 2009 Buick Lucerne come from FIAMM. The "Popular" part is FIAMM 72112. Every part fits both the 3.9L V6 and the 4.6L V8.

The Accessory Replacement section lists 6 options from FIAMM — grouped under the catalog's "Accessory Replacement" designation — the notes column spells out what sets them apart. FIAMM 72112 is listed in this group.

In the Standard Replacement grade, FIAMM supplies 5 parts: built to original-equipment specification. A representative part number is FIAMM 7200223.

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

One part is listed for the 2009 Buick Lucerne — GM GENUINE 20803735.

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

GM GENUINE supplies both parts for the 2009 Buick Lucerne. All of them fit every engine offered in the 2009 Lucerne.

Listed part numbers: GM GENUINE 22952177 and GM GENUINE 22952176.

This table covers the replacement shells for the key fob. Read more

DORMAN supplies both parts for the 2009 Buick Lucerne. All of them fit every engine offered in the 2009 Lucerne.

Part numbers include DORMAN 13636 and DORMAN 13636US.

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

One part is listed for the 2009 Buick Lucerne — GM GENUINE 20823460.

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

29 Speed Sensor parts for the 2009 Buick Lucerne come from 13 brands — STANDARD MOTOR PRODUCTS, WALKER PRODUCTS, WELLS and 10 other brands. The "Popular" part is SKP SK917644. Economy, Full Service Kit and Standard Replacement are all represented, and Standard Replacement alone accounts for 19 parts.

This table covers the Speed Sensor Reluctor Thrust washers. Read more

This group shows a single part: GM GENUINE 24230403.

This table covers the seals at the Speed Sensor. Typical signs include a wet housing, a drip after sitting, or fluid flung off a rotating shaft. Fix the surface the seal rides on. A new seal on a grooved shaft will leak again. Read more

One part is listed for the 2009 Buick Lucerne — GM GENUINE 10475299.

This table covers the Starter bolts. Read more

3 Starter Bolt parts are listed for the 2009 Buick Lucerne, from GM GENUINE and DORMAN.

This group includes DORMAN 72004, GM GENUINE 11610633 and GM GENUINE 11610786.

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

28 Starter Motor parts are listed for the 2009 Buick Lucerne, from PURE ENERGY, ACDELCO, REMY and 7 other brands. PURE ENERGY 6785SN carries the "Popular" badge. Grades run from New through Remanufactured; Remanufactured is the most populated section, led by ACDELCO, GM GENUINE, DENSO and 6 other brands.