On a 2018 Cruze, checking the transmission fluid isn't always straightforward. The automatic transmission used in most trims is designed to be sealed, with no owner-accessible dipstick in many cases. If your car has a dipstick, you can check the level and condition yourself; if not, fluid checks are typically handled by a dealer or qualified technician during routine service. This guide covers both scenarios, plus tips to keep your transmission healthy.
Does your Cruze have a dipstick?
GM-equipped Cruses often do not have a user-accessible transmission dipstick. If you’re unsure, consult your owner’s manual or your local Chevrolet dealer. If your model has a dipstick, proceed with the steps below. If not, skip to the service-based checks section.
Dipstick-equipped models: how to check — step by step
Before you begin, confirm you have the correct transmission fluid type (typically Dexron VI for GM automatics) and that you’re working on a level surface. The process usually requires checking the hot-fluid level with the engine running and the car in Park. Use these steps to check and top off if needed.
- Park on a level surface with the engine up to operating temperature, apply the parking brake, and keep the transmission in Park with the engine idling.
- Open the hood and locate the transmission dipstick. Remove it, wipe the dipstick clean with a lint-free rag, then reinsert it fully.
- Pull the dipstick again and read the level. The fluid should be between the “MIN” and “MAX” marks on the dipstick when the fluid is hot.
- If the level is low, add the correct Dexron VI fluid a little at a time through the dipstick tube using a clean funnel. Wait a moment after each addition and recheck.
- After topping up, cycle the gear selector through P, R, N, D, then back to P to circulate the fluid. Recheck the level with the dipstick while the engine is still warm.
- Wipe away any spilled fluid and inspect for leaks around the transmission pan or cooler lines. Do not overfill.
Conclusion: If you have a dipstick-capable Cruze, these steps should give you a reliable check of the transmission fluid level when hot. If the fluid is consistently low or you notice contaminants or a burnt smell, seek service promptly.
Sealed transmissions: service-based checks instead
If your 2018 Cruze does not have a dipstick, the transmission level and condition are not meant to be checked by the owner. Rely on professional service for a proper check and maintenance.
- Schedule periodic transmission service with a Chevrolet dealer or certified shop to inspect level and fluid condition using the correct procedure and tools.
- Do not attempt to open the transmission pan or add fluid yourself unless you are trained. Incorrect fluid level or contamination can cause severe damage.
- Know the fluid specification. For GM automatics, Dexron VI is commonly recommended, but always verify in your owner’s manual or by the dealer for your exact vehicle.
- Monitor for transmission symptoms (slipping, harsh or delayed shifting, unusual noises) and address them promptly with a professional inspection.
Conclusion: For sealed transmissions, rely on the service schedule and professional checks to maintain proper fluid level and condition.
What to watch for and maintenance tips
Keeping an eye on transmission health can prevent costly repairs. These guidelines help you stay proactive even if you don’t frequently inspect the fluid yourself.
- Refer to the owner’s manual for recommended service intervals, including transmission service if applicable.
- Look for leaks under the vehicle, red or brown fluid spots, or changes in shifting performance.
- Use the specified transmission fluid type (typically Dexron VI for GM automatics) and avoid mixing fluids of different specifications.
Conclusion: Proactive maintenance and prompt attention to signs of trouble can extend the life of your Cruze’s transmission.
Bottom line
Checking transmission fluid on a 2018 Chevy Cruze depends on whether your model has an accessible dipstick. If it does, you can perform a hot-fluid check and top-off carefully. If not, rely on professional service to assess fluid level and condition. In all cases, use the correct fluid type and monitor for signs of trouble.
Summary
The 2018 Chevy Cruze may use a sealed automatic transmission that isn’t user-serviceable for fluid checks. For dipstick-equipped versions, check the level when hot and in Park, add fluid cautiously, and avoid overfilling. For sealed transmissions, schedule service for inspection and adhere to GM's Dexron VI guidelines and maintenance intervals. Always consult your owner’s manual or a Chevrolet dealer for the exact procedure for your vehicle.