In short: it depends on the model year and transmission installed. Many newer Cadillac CTSs use a sealed transmission that does not include a traditional dipstick, while older CTS models may have had a dipstick. Check your specific year and transmission type in the owner’s manual or with a dealer to be sure.
Understanding CTS transmission design by year
The Cadillac CTS has spanned multiple generations with several different automatic transmissions. Over time, General Motors moved toward sealed, maintenance-free transmission designs for many models. As a result, a modern CTS is often not equipped with a conventional transmission dipstick for DIY fluid level checks. The exact arrangement can vary based on the engine, transmission model, and production year, so confirming with the manual or a dealer is the safest approach.
How to determine if your CTS has a dipstick
If you want to know whether your specific CTS has a dipstick, start with the simplest checks: visually inspect the area around the transmission for a dipstick tube and a colored dipstick (often yellow or orange). If you cannot locate any dipstick or tube, your CTS is likely configured as a sealed transmission. When in doubt, consult the owner’s manual or contact a Cadillac service center for confirmation tied to your VIN and model year.
What to do if your CTS lacks a dipstick or you need a fluid check
For CTS models without a traditional dipstick, fluid level checks and top-offs are not typically done by DIY inspection. Service procedures usually require a dealer or certified technician equipped with the factory service information and diagnostic tools. The technician may: warm the transmission to a specified temperature, use a scan tool to enable a level check, and add or replace fluid through a designated fill point according to GM specifications. Always use the fluid type recommended in your manual (GM/Dexron specifications are common for these transmissions) and rely on professional service for accurate results.
Signs you may need transmission service
If you notice shifting problems, slipping, unusual noises, slipping into a higher gear, or fluid leaks, schedule a professional inspection. Do not rely on a DIY dipstick check if your CTS is a sealed-transmission model, as improper fluid level or contamination can lead to further damage. A technician can diagnose the issue, confirm fluid type, and perform a proper fluid change if warranted.
Summary
Most late-model Cadillac CTS vehicles use a sealed transmission design that does not include a traditional dipstick, meaning DIY fluid level checks are not typical. Some older CTS configurations may have used a conventional dipstick. For precise information about your particular CTS, consult the owner's manual or a Cadillac dealer for model-year-specific guidance and service procedures. Safety and accuracy are best served by following the official specifications and having a qualified technician handle transmission fluid checks and changes when needed.
How do you check the transmission fluid in a Cadillac?
How to Check Transmission Fluid
- Step 1: Prepare Your Cadillac.
- Step 2: Locate the Transmission Dipstick.
- Step 3: Remove and Wipe the Dipstick.
- Step 4: Check Fluid Level and Condition.
- Step 5: Add Transmission Fluid if Necessary.
What are signs of low transmission fluid?
If your gears are slipping, it's a clear sign your car's running low on transmission fluid. When experiencing sudden up and down shifts, high RPMs right before shifting, or erratic shifting, seek assistance from your local service center to prevent your transmission from overheating or becoming damaged.
What year of Cadillac CTS to stay away from?
Electrical issues: Electrical problems have popped up in various Cadillac CTS models, with the 2008-2009 and 2013-2014 years facing issues more frequently. These problems range from glitchy infotainment systems to malfunctioning lights and battery failures.
How do you check the transmission fluid on a 2016 Cadillac CTS?
Turn the engine on for a few minutes. Make sure your car is in park before getting out and opening the hood. Find the transmission fluid dipstick. On front-wheel-drive cars, it's usually located to the right of the oil dipstick.


