Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Memory System
The memory seat and mirror system allows the driver's seat to be set in 4 preset positions: MEMORY 1, MEMORY 2, EXIT 1 and EXIT 2. The Memory Seat Module (MSM) controls movement of seat horizontal, front vertical, rear vertical, recline and belt tower motors and lumbar horizontal and lumbar vertical motors. The Driver Door Module (DDM) and Passenger Front Door Module (PFDM) control movement of 2 left mirror motors and 2 right mirror motors. Steering Column Tilt/Telescoping Module (SCCM) stores steering column position for recall operation of up/down (tilt) and in/out (telescoping) motors. All motors have a position sensor, and work independently of each other. When memory switch is pressed, Driver Door Switch Assembly (DDSA) receives memory switch input. DDSA then sends a memory position recall message over the class 2 serial data line to DDM, MSM, PFDM and SCCM. Each module receives the input and moves corresponding motors to stored position.
On the back of each Remote Keyless Entry (RKE) transmitter is the number 1 or 2. These numbers correspond with the memory settings on the door panel. If RKE transmitter is used to enter vehicle, seats, mirrors and steering column will move to stored setting for driver.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.