2016 Cadillac CTS used buying checklist

Test for the problems owners report most

The most reported problems of this model year, with what to look for on the test drive.

• Electrical system10 owner complaints, usually around 12,000 miles

  Test every screen, camera, power window, lock and the key fob. With the engine running, make sure no warning lights stay on.

• Transmission and drivetrain9 owner complaints

  On a test drive from a cold start, check that shifts are smooth, with no slipping, delays, shudder or jerking at low speed. Ask for transmission fluid service records.

• Engine and cooling4 owner complaints

  Start the engine cold and listen for knocking or ticking. Check for warning lights, oil leaks and a low oil level, and ask how often oil had to be topped up.

• Steering4 owner complaints

  Turn the wheel from lock to lock while parked and on the road: it should be smooth, with no clunks, stiffness or warning lights.

Make sure these recalls were done

Recall repairs are free at any dealer of the brand. Ask the seller for proof, or have a dealer check the VIN.

• Air bagsRecall number 26V329000, May 21, 2026
• SteeringRecall number 25V175000, Mar 20, 2025
• SteeringRecall number 19V086000, Feb 7, 2019
• SeatsRecall number 18V595000, Sep 7, 2018

Service bulletins worth asking about

Repair instructions the maker sent to dealers for known problems. Ask whether any of these repairs were done.

• This service bulletin provides information on replacing the intake manifold when the engine is replaced...Jun 5, 2025
• The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle...May 15, 2025
• This service bulletin provides information to dealership personnel for new vehicles with less than 1,000...May 7, 2025
• SteeringApr 17, 2025
• This service bulletin provides information on the proper Reflective High Temperature Heat and/or...Apr 3, 2025
• The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential...Mar 31, 2025

Before you pay

• Decode the VIN and make sure it matches the title, the registration and the car itself.
• Get a vehicle history report to check for accidents, salvage or flood titles and odometer problems.
• Ask for service records, especially oil changes and any transmission fluid service.
• Start the car from cold, and drive it at city and highway speeds for at least 20 minutes.
• Have an independent mechanic inspect the car before you sign anything.