Electric clutch pump for the GM AWD rear drive module, OE 22766967, that clears the Service AWD message on SRX, XTS, LaCrosse and Regal AWD.
A Cadillac SRX, XTS, Buick LaCrosse or Regal AWD that lights up a Service AWD, Service Rear Axle or Service Rear Wheel Drive message and then drives like a front-wheel-drive car usually has a problem in the rear drive module, and the small electric clutch pump is one of the most common failures. This is a replacement pump for that module, cross-referenced to OE 22766967 and 22765779, supplied with its pigtail harness and two mounting screws.
These cars do not have a center differential. Torque goes to the rear only when a wet multi-plate clutch in the rear drive module is squeezed, and that squeeze comes from hydraulic pressure. The electric pump makes the pressure, the clutch control valve meters it to the piston, and the rear differential control module commands both. GM calls the system an electronic limited-slip (eLSD) clutch in its service literature. If the pump stops moving fluid, the clutch never applies and the module sets a fault and turns off rear drive to protect itself.
The clutch has its own small oil supply, separate from the gear oil in the axle. GM bulletin 12082 has the technician add only 140 ml of eLSD clutch lubricant through the clutch cover fill plug, then check that the level sits at the bottom of the plug hole. That small volume is why a little sludge or a low level starves the pump so quickly.
GM issued bulletin 23-NA-162 in December 2023 because rear differential control modules and module kits were being replaced when the module was not the fault. Start with a scan tool that reads the rear differential module, such as the Foxwell NT510 Elite GM bidirectional scanner, and pull codes and live data. In the 12082 procedure GM checks the clutch pump motor current parameter with the engine running: it should read above 2.5 A when the pump is on. A reading below that points first to a low clutch fluid level, so check the level at the clutch cover plug before you condemn anything.
If the level is right, test power, ground and the harness at the pump connector the same way you would test a transmission solenoid circuit. Our guide to solenoid testing without a factory scan tool walks through the meter checks. A pump with good power and ground that will not run is bad. A pump that runs at normal current while the rear still will not engage points to the clutch valve (now sold separately by GM as kit 19435486), the piston seal, or the clutch pack instead.
Listed fitment for this pump is 2010-2016 Cadillac SRX AWD, 2013-2019 Cadillac XTS AWD, 2010-2016 Buick LaCrosse AWD and 2014-2017 Buick Regal AWD. It does not apply to front-drive versions of these cars. GM has revised parts in this module over the years, so compare the number on your old pump to 22766967 or 22765779, or send us your year and VIN before ordering and we will confirm it. This module is not tied to one transmission model, so there is no single model collection page for it; our scan tool buying guide covers tools that can read and command it.
| Application | GM AWD rear drive module (Haldex-style clutch) |
| OE reference | 22766967, 22765779 |
| Aftermarket cross | 699-000, 113430, 404029, 0404029, 664275, 2004444, 13280095 |
| Listed fitment | 2010-2016 Cadillac SRX AWD, 2013-2019 Cadillac XTS AWD, 2010-2016 Buick LaCrosse AWD, 2014-2017 Buick Regal AWD |
| Includes | Pump with harness, 2 mounting screws |
The listed fitment covers 2010-2016 SRX AWD, 2013-2019 XTS AWD, 2010-2016 LaCrosse AWD and 2014-2017 Regal AWD. Match the number on your old pump to 22766967 or 22765779, or send us your year and VIN and we will check it before it ships.
Only if the pump was the fault. The same message and codes can come from a low clutch fluid level, the clutch control valve, a leaking piston seal or the control module. Check pump current and fluid level first, as GM recommends.
The clutch uses a dedicated GM eLSD clutch lubricant, filled to the bottom of the clutch cover plug hole, and it is separate from the gear oil in the axle housing. Do not top the clutch off with gear oil or ATF.
Usually not. The pump is held by two screws on the rear of the module and comes out with a twist once the harness is unplugged. Wait 10 minutes after shutdown so the clutch circuit pressure bleeds off first.
Purge the air with the idle and throttle cycles, clear codes and road test. If the message comes back with a good pump and correct fluid level, the rear differential module may need a calibration update with a GM-capable scan tool or at a dealer.
