2012 Buick Regal 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

8 Alternator / Generator parts for the 2012 Buick Regal come from 6 brands — GM GENUINE, TERREPOWER, WAI GLOBAL and 3 other brands. The "Popular" part is GM GENUINE 19432304.

The New section lists 3 options from GM GENUINE and WAI GLOBAL — brand-new units rather than rebuilt ones. GM GENUINE 19432304 is listed in this group.

The Remanufactured section lists 5 options from TERREPOWER, ACDELCO, PURE ENERGY and 1 other brand — factory-rebuilt units with new wear components. ACDELCO 3343090A is listed in this group.

Listed part numbers: GM GENUINE 19432304, GM GENUINE 13588324 and WAI GLOBAL 11650N, plus the other parts above.

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

GM GENUINE supplies both parts for the 2012 Buick Regal.

This group includes GM GENUINE 13523276 and GM GENUINE 13523275.

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

One part is listed for the 2012 Buick Regal — GM GENUINE 13525289.

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

7 Battery parts are listed for the 2012 Buick Regal, from DEKA, LUCAS, ACDELCO and 4 other brands. DEKA 9A48 carries the "Popular" badge.

The AGM (Extended Life) section lists 6 options from DEKA, LUCAS, ACDELCO and 3 other brands — grouped under the catalog's "AGM (Extended Life)" designation — the notes column spells out what sets them apart. DEKA 9A48 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 FT68048 is listed in this group.

Listed part numbers: DEKA 9A48, LUCAS LBAGM004A and ACDELCO 48AGM, plus the other 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

4 Battery Cable parts for the 2012 Buick Regal come from 3 brands — STANDARD MOTOR PRODUCTS, ACDELCO and GM GENUINE.

Listed part numbers: ACDELCO 2BC5, GM GENUINE 20781417 and STANDARD MOTOR PRODUCTS A122L, plus the other 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 2012 Buick Regal 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 2012 Buick Regal — TECHPRO GM2995119.

This table covers the Battery Vent tubes. Read more

This group shows a single part: GM GENUINE 22868234.

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

This group shows a single part: GM GENUINE 13534182.

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 2012 Buick Regal — GM GENUINE 19116527.

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

This group shows a single part: GM GENUINE 12651994.

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

One part is listed for the 2012 Buick Regal — BUSSMANN ATM2.

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

This group shows a single part: DORMAN 956430.

This table covers the HID Lighting ballasts. Read more

2 HID Lighting Ballast parts for the 2012 Buick Regal come from 2 brands — DORMAN and ÜRO PARTS.

Part numbers include DORMAN 601058 and ÜRO PARTS 63117248050.

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

11 Horn parts are listed for the 2012 Buick Regal, from FIAMM, DORMAN and GM GENUINE. 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 5 options from FIAMM, DORMAN and GM GENUINE — 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 2012 Buick Regal come from GM GENUINE.

Part numbers include GM GENUINE 13503205 and GM GENUINE 13523343.

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

9 Keyless Entry Remote parts for the 2012 Buick Regal come from 2 brands — GM GENUINE and DORMAN. The "Popular" part is GM GENUINE 13585206.

Listed part numbers: GM GENUINE 13585206, GM GENUINE 13504205 and DORMAN 99121, plus the other parts above.

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

This group shows a single part: VEMO V40730092.

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

10 Parking Aid Sensor parts for the 2012 Buick Regal come from 8 brands — SKP, WELLS, BOSCH and 5 other brands. The "Popular" part is BOSCH 0263043552.

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

One part is listed for the 2012 Buick Regal — GM GENUINE 13599326.

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

17 Speed Sensor parts are listed for the 2012 Buick Regal, from GPD, HOLSTEIN, GM GENUINE and 6 other brands. ULTRA-POWER SC591 carries the "Popular" badge.

In the Economy grade, GPD, HOLSTEIN, ULTRA-POWER and 1 other brand supply 8 parts: the catalog's value-priced group. A representative part number is ULTRA-POWER SC591.

The Standard Replacement section: 9 options from GM GENUINE, NTK, WELLS and 2 other brands. GM GENUINE 55568130 is listed in this group.

This table covers the Speed Sensor Reluctor rings. Read more

GM GENUINE supplies both parts for the 2012 Buick Regal.

Listed part numbers: GM GENUINE 24230744 and GM GENUINE 24230743.

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

15 Starter Motor parts for the 2012 Buick Regal come from 10 brands — ACDELCO, PURE ENERGY, REMY and 7 other brands. The "Popular" part is ACDELCO 3371134.

The New section: 7 options from ACDELCO, GM GENUINE, TYC and 4 other brands. ACDELCO 3371134 is listed in this group.

The Remanufactured section: 8 options from ACDELCO, BOSCH, DENSO and 5 other brands. ACDELCO 3362148A is listed in this group.

This table covers the Yaw 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

One part is listed for the 2012 Buick Regal — GM GENUINE 13514501.