Why does my Cadillac CTS-V click from the rear or stop moving?

Short answer: Clicking from the back of a CTS-V when you pull away is often an exhaust leak. Rule that out first. Then have the differential mounts, bushings and axles checked, because these cars are known to be hard on the rear end. If the transmission jerks and then won't move, have it towed to a good independent transmission shop.

Symptom: The car clicks from the rear when pulling away, or the transmission jerks and then won't move.

What to check first

1. Look for black soot at exhaust joints near the rear.
2. Have the differential, its mounts and bushings, and the axle joints inspected.
3. Check differential fluid and look for leaks at the pinion seal.
4. For no movement, check transmission fluid level and condition, then tow it to a specialist.

Likely causes

1. Exhaust leak. An exhaust leak near the rear can tick or click, louder under power.
2. Differential mounts, bushings or case. The differential is the gear box between the rear wheels. On these powerful cars, hard launches can wear its mounts and bushings or even crack the case.
3. Axle or CV joints. Rear axle joints can click when taking off.
4. Transmission internal failure. If the car jerks and then won't move in any gear, the transmission needs a specialist.
5. Old transmission fluid. Fresh fluid sometimes helps if seals are aging.

What it usually costs

Owners didn't post prices.

Is it safe to keep driving?

A cracked differential or failing axle can lock up or let go. A transmission that won't move can't be driven. Tow it.

DIY or shop?

Exhaust leak checks are DIY. Differential and transmission work goes to a shop.

Recalls, bulletins and complaints in plain words

• Related recalls: NHTSA lists GM recall 07V589000 (2005-2007 model years in our CTS search: rear axle pinion seal may leak) and 11V089000 (2009-2010 CTS: rear toe link nuts may loosen). Recall 20V038000 covers rear differential roll pins on the 2014-2015 CTS V-Sport with the 3.6 twin-turbo V6, a different model from the V8 CTS-V. If your car is part of a recall, the dealer fixes it for free. Check your VIN at nhtsa.gov/recalls.
• Plain words: The complaint count below shows how often owners reported problems that mention these words to NHTSA. A count is not proof of a defect.
• NHTSA complaints: 399 keyword-matched complaints for Cadillac CTS and CTS-V 2004–2015 (of 1789 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-29; keywords: transmission, shift, differential, axle, click, clunk, vibrat) (NHTSA returned no data for 16 model-year queries). This counts complaints that mention these words. It is not a defect finding.

What owners report

• In Clicking noise near the rear end on my 2004 CTS-V on Car Talk, a 2004 CTS-V owner heard clicking from the rear when easing off the clutch in 1st. Members said to check for rear exhaust leaks first. One said a friend broke his CTS-V differential more than once at track days, where the case, mounts and bushings can fail under hard use.
• In 2010 Cadillac CTS-V Sedan - Transmission issue on Car Talk, a 2010 CTS-V's transmission jerked, then would only go forward in neutral with no reverse, then wouldn't move at all, with fluid level fine. Members said to tow it to a good independent transmission shop, or the Cadillac dealer, and to ask whether a fluid service is worth trying first.

Quick tip

If you launch a CTS-V hard, plan to inspect the rear end mounts regularly.

Vehicle focus: Cadillac CTS-V, 2004-2015 (first and second generation, V8 performance models).

Safety / mechanic note

Driveline failures are safety items. Verify with a mechanic.